java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/real-life/RailwayCrossing-Incorrenct.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:15:25,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:15:25,194 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:15:25,213 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:15:25,213 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:15:25,214 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:15:25,215 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:15:25,217 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:15:25,219 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:15:25,220 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:15:25,221 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:15:25,221 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:15:25,222 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:15:25,223 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:15:25,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:15:25,225 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:15:25,226 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:15:25,228 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:15:25,230 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:15:25,232 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:15:25,233 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:15:25,234 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:15:25,237 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:15:25,237 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:15:25,237 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:15:25,238 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:15:25,239 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:15:25,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:15:25,241 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:15:25,242 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:15:25,242 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:15:25,243 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 13:15:25,246 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 13:15:25,254 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:15:25,254 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:15:25,256 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 13:15:25,256 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 13:15:25,256 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:15:25,256 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 13:15:25,256 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 13:15:25,257 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:15:25,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:15:25,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:15:25,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:15:25,349 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:15:25,350 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:15:25,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/RailwayCrossing-Incorrenct.bpl [2018-07-25 13:15:25,351 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/RailwayCrossing-Incorrenct.bpl' [2018-07-25 13:15:25,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:15:25,402 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:15:25,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:15:25,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:15:25,404 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:15:25,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,444 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 13:15:25,445 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 13:15:25,445 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 13:15:25,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:15:25,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:15:25,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:15:25,448 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:15:25,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:15:25,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:15:25,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:15:25,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:15:25,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/1) ... [2018-07-25 13:15:25,560 INFO L124 BoogieDeclarations]: Specification and implementation of procedure GateController given in one single declaration [2018-07-25 13:15:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure GateController [2018-07-25 13:15:25,561 INFO L138 BoogieDeclarations]: Found implementation of procedure GateController [2018-07-25 13:15:25,752 INFO L270 CfgBuilder]: Using library mode [2018-07-25 13:15:25,752 INFO L202 PluginConnector]: Adding new model RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:15:25 BoogieIcfgContainer [2018-07-25 13:15:25,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:15:25,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:15:25,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:15:25,758 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:15:25,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:15:25" (1/2) ... [2018-07-25 13:15:25,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72baaac2 and model type RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:15:25, skipping insertion in model container [2018-07-25 13:15:25,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:15:25" (2/2) ... [2018-07-25 13:15:25,762 INFO L112 eAbstractionObserver]: Analyzing ICFG RailwayCrossing-Incorrenct.bpl [2018-07-25 13:15:25,772 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:15:25,781 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:15:25,828 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:15:25,829 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:15:25,829 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:15:25,830 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 13:15:25,830 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:15:25,830 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:15:25,830 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:15:25,831 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:15:25,831 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:15:25,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-25 13:15:25,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 13:15:25,855 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:15:25,855 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 13:15:25,857 INFO L415 AbstractCegarLoop]: === Iteration 1 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:15:25,862 INFO L82 PathProgramCache]: Analyzing trace with hash 30496, now seen corresponding path program 1 times [2018-07-25 13:15:25,868 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:15:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:15:25,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:15:25,948 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:15:25,949 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:15:25,953 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:15:25,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:15:25,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:15:25,968 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-07-25 13:15:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:15:25,995 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-25 13:15:25,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:15:25,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-25 13:15:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:15:26,008 INFO L225 Difference]: With dead ends: 9 [2018-07-25 13:15:26,009 INFO L226 Difference]: Without dead ends: 5 [2018-07-25 13:15:26,012 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:15:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-25 13:15:26,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-25 13:15:26,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-25 13:15:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-25 13:15:26,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-25 13:15:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:15:26,047 INFO L472 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-25 13:15:26,047 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:15:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-25 13:15:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 13:15:26,048 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:15:26,048 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 13:15:26,048 INFO L415 AbstractCegarLoop]: === Iteration 2 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:15:26,049 INFO L82 PathProgramCache]: Analyzing trace with hash 955939, now seen corresponding path program 1 times [2018-07-25 13:15:26,049 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:15:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:15:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:15:26,094 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:15:26,094 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-25 13:15:26,097 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 13:15:26,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 13:15:26,098 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:15:26,098 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-07-25 13:15:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:15:26,125 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-25 13:15:26,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 13:15:26,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-25 13:15:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:15:26,126 INFO L225 Difference]: With dead ends: 8 [2018-07-25 13:15:26,126 INFO L226 Difference]: Without dead ends: 6 [2018-07-25 13:15:26,128 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:15:26,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-25 13:15:26,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-25 13:15:26,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-25 13:15:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-25 13:15:26,130 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-25 13:15:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:15:26,131 INFO L472 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-25 13:15:26,131 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 13:15:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-25 13:15:26,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-25 13:15:26,132 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:15:26,132 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-25 13:15:26,132 INFO L415 AbstractCegarLoop]: === Iteration 3 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:15:26,132 INFO L82 PathProgramCache]: Analyzing trace with hash 29644672, now seen corresponding path program 2 times [2018-07-25 13:15:26,133 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:15:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-25 13:15:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-25 13:15:26,193 INFO L420 BasicCegarLoop]: Counterexample might be feasible [2018-07-25 13:15:26,214 INFO L202 PluginConnector]: Adding new model RailwayCrossing-Incorrenct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 01:15:26 BoogieIcfgContainer [2018-07-25 13:15:26,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 13:15:26,215 INFO L168 Benchmark]: Toolchain (without parser) took 814.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-25 13:15:26,218 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:15:26,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:15:26,219 INFO L168 Benchmark]: Boogie Preprocessor took 26.80 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:15:26,220 INFO L168 Benchmark]: RCFGBuilder took 277.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-25 13:15:26,222 INFO L168 Benchmark]: TraceAbstraction took 460.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 13:15:26,228 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.80 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 277.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 460.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 39]: assertion can be violated assertion can be violated We found a FailurePath: [L16] gate := 0; [L17] time := 0; [L19] one := 1; [L20] hundred := 100 * one; [L21] thousand := 1000 * one; [L22] alarmTrain := false; VAL [alarmTrain=false, gate=0, hundred=100, one=1, thousand=1000, time=0] [L25] COND TRUE time < thousand [L27] COND FALSE !(gateMotorFailure) [L30] COND TRUE gate < hundred [L31] gate := gate + 1; [L34] havoc increment; [L35] assume increment < 1000; [L36] time := time + increment; VAL [alarmTrain=false, gate=1, gateMotorFailure=false, hundred=100, increment=999, one=1, thousand=1000, time=999] [L25] COND TRUE time < thousand [L27] COND FALSE !(gateMotorFailure) [L30] COND TRUE gate < hundred [L31] gate := gate + 1; [L34] havoc increment; [L35] assume increment < 1000; [L36] time := time + increment; VAL [alarmTrain=false, gate=2, gateMotorFailure=false, hundred=100, increment=1, one=1, thousand=1000, time=1000] [L25] COND FALSE !(time < thousand) VAL [alarmTrain=false, gate=2, gateMotorFailure=false, hundred=100, increment=1, one=1, thousand=1000, time=1000] [L39] assert alarmTrain || gate == hundred; VAL [alarmTrain=false, gate=2, gateMotorFailure=false, hundred=100, increment=1, one=1, thousand=1000, time=1000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/RailwayCrossing-Incorrenct.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_13-15-26-251.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/RailwayCrossing-Incorrenct.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_13-15-26-251.csv Received shutdown request...