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ortools-clone/ortools/sat/flaky_models_test.cc

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// Copyright 2010-2025 Google LLC
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "gtest/gtest.h"
#include "ortools/base/parse_test_proto.h"
#include "ortools/sat/cp_model.pb.h"
#include "ortools/sat/cp_model_solver.h"
#include "ortools/sat/sat_parameters.pb.h"
namespace operations_research {
namespace sat {
namespace {
using ::google::protobuf::contrib::parse_proto::ParseTestProto;
TEST(FlakyTest, Issue3108) {
const CpModelProto model_proto = ParseTestProto(R"pb(
variables { domain: 0 domain: 1 }
variables { domain: 0 domain: 1 }
variables { domain: 0 domain: 1 }
variables { domain: 0 domain: 1 }
variables { domain: 0 domain: 1 }
constraints {
enforcement_literal: 2
interval {
start { vars: 0 coeffs: 1 }
end { vars: 0 coeffs: 1 offset: 1 }
size { offset: 1 }
}
}
constraints {
enforcement_literal: 3
interval {
start { vars: 1 coeffs: 1 }
end { vars: 1 coeffs: 1 offset: 1 }
size { offset: 1 }
}
}
constraints {
cumulative {
capacity { vars: 4 coeffs: 1 }
intervals: 0
intervals: 1
demands { offset: 1 }
demands { offset: 1 }
}
}
constraints {
enforcement_literal: 2
linear { vars: 0 coeffs: 1 domain: 0 domain: 1 }
}
constraints {
enforcement_literal: -3
linear {
vars: 0
coeffs: 1
domain: -9223372036854775808
domain: -1
domain: 2
domain: 9223372036854775807
}
}
constraints {
enforcement_literal: 3
linear { vars: 1 coeffs: 1 domain: 0 domain: 1 }
}
constraints {
enforcement_literal: -4
linear {
vars: 1
coeffs: 1
domain: -9223372036854775808
domain: -1
domain: 2
domain: 9223372036854775807
}
}
objective { vars: 4 coeffs: 1 }
)pb");
SatParameters parameters;
parameters.set_log_search_progress(true);
parameters.set_cp_model_probing_level(0);
parameters.set_num_workers(1);
const CpSolverResponse response =
SolveWithParameters(model_proto, parameters);
EXPECT_EQ(response.status(), CpSolverStatus::OPTIMAL);
}
} // namespace
} // namespace sat
} // namespace operations_research