/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.positions.where.we.compute.the.hoare.annotation All --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows ASSERTandASSUME -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 01:53:47,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 01:53:47,120 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2025-03-15 01:53:47,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 01:53:47,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 01:53:47,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 01:53:47,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 01:53:47,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 01:53:47,148 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 01:53:47,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 01:53:47,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 01:53:47,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 01:53:47,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:53:47,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 01:53:47,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 01:53:47,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 01:53:47,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 01:53:47,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 01:53:47,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 01:53:47,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> ASSERTandASSUME [2025-03-15 01:53:47,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 01:53:47,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 01:53:47,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 01:53:47,413 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 01:53:47,413 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 01:53:47,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2025-03-15 01:53:48,564 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718db97b7/0b8d7eb99a2a487382adf36bbdb557fd/FLAGb9411ef77 [2025-03-15 01:53:48,787 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 01:53:48,787 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2025-03-15 01:53:48,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718db97b7/0b8d7eb99a2a487382adf36bbdb557fd/FLAGb9411ef77 [2025-03-15 01:53:49,137 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718db97b7/0b8d7eb99a2a487382adf36bbdb557fd [2025-03-15 01:53:49,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 01:53:49,141 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 01:53:49,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 01:53:49,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 01:53:49,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 01:53:49,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54524ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49, skipping insertion in model container [2025-03-15 01:53:49,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 01:53:49,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:53:49,405 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 01:53:49,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:53:49,503 INFO L204 MainTranslator]: Completed translation [2025-03-15 01:53:49,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49 WrapperNode [2025-03-15 01:53:49,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 01:53:49,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 01:53:49,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 01:53:49,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 01:53:49,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,543 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 86 [2025-03-15 01:53:49,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 01:53:49,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 01:53:49,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 01:53:49,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 01:53:49,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,559 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 01:53:49,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 01:53:49,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 01:53:49,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 01:53:49,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (1/1) ... [2025-03-15 01:53:49,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:53:49,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:53:49,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-15 01:53:49,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-15 01:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-15 01:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-15 01:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 01:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-15 01:53:49,621 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-15 01:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 01:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 01:53:49,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 01:53:49,624 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 01:53:49,720 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 01:53:49,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 01:53:49,838 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 01:53:49,838 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 01:53:49,859 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 01:53:49,860 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 01:53:49,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:53:49 BoogieIcfgContainer [2025-03-15 01:53:49,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 01:53:49,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 01:53:49,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 01:53:49,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 01:53:49,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:53:49" (1/3) ... [2025-03-15 01:53:49,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10222dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:53:49, skipping insertion in model container [2025-03-15 01:53:49,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:49" (2/3) ... [2025-03-15 01:53:49,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10222dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:53:49, skipping insertion in model container [2025-03-15 01:53:49,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:53:49" (3/3) ... [2025-03-15 01:53:49,867 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2025-03-15 01:53:49,878 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 01:53:49,879 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_02-simple_nr.i that has 2 procedures, 104 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-15 01:53:49,879 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 01:53:49,940 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-15 01:53:49,975 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:53:49,983 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c5bbea2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:53:49,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-15 01:53:50,020 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:53:50,021 INFO L124 PetriNetUnfolderBase]: 0/80 cut-off events. [2025-03-15 01:53:50,022 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 01:53:50,022 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:50,024 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:50,024 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:50,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:50,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1871200852, now seen corresponding path program 1 times [2025-03-15 01:53:50,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:50,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774106966] [2025-03-15 01:53:50,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:50,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:50,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:50,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774106966] [2025-03-15 01:53:50,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774106966] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:50,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:50,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 01:53:50,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669907471] [2025-03-15 01:53:50,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:50,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:53:50,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:50,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:53:50,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:53:50,370 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2025-03-15 01:53:50,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:50,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:50,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2025-03-15 01:53:50,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:50,461 INFO L124 PetriNetUnfolderBase]: 29/176 cut-off events. [2025-03-15 01:53:50,461 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-15 01:53:50,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 176 events. 29/176 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 374 event pairs, 15 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 169. Up to 50 conditions per place. [2025-03-15 01:53:50,465 INFO L140 encePairwiseOnDemand]: 96/103 looper letters, 17 selfloop transitions, 3 changer transitions 9/110 dead transitions. [2025-03-15 01:53:50,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 110 transitions, 276 flow [2025-03-15 01:53:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:53:50,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:53:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2025-03-15 01:53:50,477 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9288025889967637 [2025-03-15 01:53:50,481 INFO L298 CegarLoopForPetriNet]: 107 programPoint places, 1 predicate places. [2025-03-15 01:53:50,482 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 110 transitions, 276 flow [2025-03-15 01:53:50,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:50,482 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:50,482 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:50,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 01:53:50,482 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:50,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:50,483 INFO L85 PathProgramCache]: Analyzing trace with hash 902791430, now seen corresponding path program 1 times [2025-03-15 01:53:50,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:50,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291017006] [2025-03-15 01:53:50,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:50,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:50,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:50,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291017006] [2025-03-15 01:53:50,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291017006] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:50,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:50,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:53:50,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520398952] [2025-03-15 01:53:50,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:50,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:53:50,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:50,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:53:50,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:53:50,724 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2025-03-15 01:53:50,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 110 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:50,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:50,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2025-03-15 01:53:50,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:50,772 INFO L124 PetriNetUnfolderBase]: 1/115 cut-off events. [2025-03-15 01:53:50,772 INFO L125 PetriNetUnfolderBase]: For 18/20 co-relation queries the response was YES. [2025-03-15 01:53:50,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 115 events. 1/115 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 8/119 useless extension candidates. Maximal degree in co-relation 68. Up to 20 conditions per place. [2025-03-15 01:53:50,773 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 7 selfloop transitions, 6 changer transitions 9/110 dead transitions. [2025-03-15 01:53:50,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 304 flow [2025-03-15 01:53:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:53:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:53:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2025-03-15 01:53:50,775 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9288025889967637 [2025-03-15 01:53:50,775 INFO L298 CegarLoopForPetriNet]: 107 programPoint places, 3 predicate places. [2025-03-15 01:53:50,775 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 110 transitions, 304 flow [2025-03-15 01:53:50,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:50,776 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:50,776 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:50,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 01:53:50,776 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:50,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1310940212, now seen corresponding path program 1 times [2025-03-15 01:53:50,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:50,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176147132] [2025-03-15 01:53:50,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:50,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:50,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:50,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176147132] [2025-03-15 01:53:50,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176147132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:50,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:50,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:53:50,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379707662] [2025-03-15 01:53:50,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:50,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:53:50,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:50,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:53:50,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:53:50,918 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2025-03-15 01:53:50,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 110 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:50,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:50,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2025-03-15 01:53:50,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:50,979 INFO L124 PetriNetUnfolderBase]: 1/113 cut-off events. [2025-03-15 01:53:50,979 INFO L125 PetriNetUnfolderBase]: For 27/29 co-relation queries the response was YES. [2025-03-15 01:53:50,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 113 events. 1/113 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 86. Up to 18 conditions per place. [2025-03-15 01:53:50,980 INFO L140 encePairwiseOnDemand]: 98/103 looper letters, 15 selfloop transitions, 3 changer transitions 9/108 dead transitions. [2025-03-15 01:53:50,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 108 transitions, 342 flow [2025-03-15 01:53:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 01:53:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 01:53:50,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2025-03-15 01:53:50,981 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8956310679611651 [2025-03-15 01:53:50,982 INFO L298 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2025-03-15 01:53:50,982 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 342 flow [2025-03-15 01:53:50,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:50,982 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:50,982 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:50,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 01:53:50,982 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:50,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:50,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1984440665, now seen corresponding path program 1 times [2025-03-15 01:53:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:50,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690440519] [2025-03-15 01:53:50,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:50,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:51,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690440519] [2025-03-15 01:53:51,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690440519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:51,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:51,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:53:51,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937066778] [2025-03-15 01:53:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:51,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:53:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:51,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:53:51,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:53:51,095 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2025-03-15 01:53:51,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 342 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:51,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:51,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2025-03-15 01:53:51,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:51,141 INFO L124 PetriNetUnfolderBase]: 1/111 cut-off events. [2025-03-15 01:53:51,141 INFO L125 PetriNetUnfolderBase]: For 53/57 co-relation queries the response was YES. [2025-03-15 01:53:51,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 111 events. 1/111 cut-off events. For 53/57 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 100. Up to 16 conditions per place. [2025-03-15 01:53:51,142 INFO L140 encePairwiseOnDemand]: 98/103 looper letters, 0 selfloop transitions, 0 changer transitions 108/108 dead transitions. [2025-03-15 01:53:51,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 108 transitions, 392 flow [2025-03-15 01:53:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 01:53:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 01:53:51,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2025-03-15 01:53:51,144 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8956310679611651 [2025-03-15 01:53:51,144 INFO L298 CegarLoopForPetriNet]: 107 programPoint places, 5 predicate places. [2025-03-15 01:53:51,144 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 108 transitions, 392 flow [2025-03-15 01:53:51,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:51,151 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_02-simple_nr.i_petrified1_AllErrorsAtOnce [2025-03-15 01:53:51,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-03-15 01:53:51,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-03-15 01:53:51,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-15 01:53:51,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-03-15 01:53:51,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-03-15 01:53:51,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-03-15 01:53:51,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-03-15 01:53:51,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 01:53:51,171 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-15 01:53:51,176 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 01:53:51,176 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 01:53:51,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:53:51 BasicIcfg [2025-03-15 01:53:51,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 01:53:51,181 INFO L158 Benchmark]: Toolchain (without parser) took 2041.51ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 42.7MB in the beginning and 28.8MB in the end (delta: 14.0MB). Peak memory consumption was 29.5MB. Max. memory is 8.0GB. [2025-03-15 01:53:51,182 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:53:51,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.96ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 40.3MB in the end (delta: 2.3MB). Peak memory consumption was 25.4MB. Max. memory is 8.0GB. [2025-03-15 01:53:51,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.82ms. Allocated memory is still 71.3MB. Free memory was 40.3MB in the beginning and 38.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 01:53:51,182 INFO L158 Benchmark]: Boogie Preprocessor took 23.79ms. Allocated memory is still 71.3MB. Free memory was 38.2MB in the beginning and 36.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:53:51,182 INFO L158 Benchmark]: RCFGBuilder took 290.59ms. Allocated memory is still 71.3MB. Free memory was 36.9MB in the beginning and 23.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 01:53:51,184 INFO L158 Benchmark]: TraceAbstraction took 1318.94ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 22.1MB in the beginning and 28.8MB in the end (delta: -6.7MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2025-03-15 01:53:51,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 362.96ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 40.3MB in the end (delta: 2.3MB). Peak memory consumption was 25.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.82ms. Allocated memory is still 71.3MB. Free memory was 40.3MB in the beginning and 38.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.79ms. Allocated memory is still 71.3MB. Free memory was 38.2MB in the beginning and 36.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 290.59ms. Allocated memory is still 71.3MB. Free memory was 36.9MB in the beginning and 23.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1318.94ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 22.1MB in the beginning and 28.8MB in the end (delta: -6.7MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 118 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 13 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=392occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 01:53:51,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...