/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 01:42:42,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 01:42:42,591 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 [2023-11-30 01:42:42,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 01:42:42,631 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 01:42:42,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 01:42:42,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 01:42:42,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 01:42:42,632 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 01:42:42,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 01:42:42,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 01:42:42,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 01:42:42,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 01:42:42,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 01:42:42,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 01:42:42,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 01:42:42,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 01:42:42,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 01:42:42,642 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 01:42:42,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 01:42:42,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 01:42:42,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 01:42:42,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 01:42:42,643 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 01:42:42,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 01:42:42,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 01:42:42,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 01:42:42,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 01:42:42,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 01:42:42,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 01:42:42,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 01:42:42,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 01:42:42,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 01:42:42,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 01:42:42,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 01:42:42,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 01:42:42,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 01:42:42,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 01:42:42,916 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 01:42:42,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-11-30 01:42:43,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 01:42:44,043 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 01:42:44,043 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-11-30 01:42:44,057 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a032e4be/29bfc91e83434a08b98a4e3a807cdd6b/FLAG53e6a241d [2023-11-30 01:42:44,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a032e4be/29bfc91e83434a08b98a4e3a807cdd6b [2023-11-30 01:42:44,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 01:42:44,074 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 01:42:44,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 01:42:44,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 01:42:44,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 01:42:44,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61aa2d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44, skipping insertion in model container [2023-11-30 01:42:44,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,119 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 01:42:44,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 01:42:44,374 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 01:42:44,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 01:42:44,437 INFO L206 MainTranslator]: Completed translation [2023-11-30 01:42:44,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44 WrapperNode [2023-11-30 01:42:44,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 01:42:44,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 01:42:44,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 01:42:44,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 01:42:44,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,512 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2023-11-30 01:42:44,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 01:42:44,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 01:42:44,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 01:42:44,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 01:42:44,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 01:42:44,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 01:42:44,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 01:42:44,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 01:42:44,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (1/1) ... [2023-11-30 01:42:44,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 01:42:44,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:44,575 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) [2023-11-30 01:42:44,592 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 [2023-11-30 01:42:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 01:42:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 01:42:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 01:42:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 01:42:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 01:42:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 01:42:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 01:42:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 01:42:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 01:42:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 01:42:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 01:42:44,599 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 01:42:44,687 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 01:42:44,688 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 01:42:44,835 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 01:42:44,853 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 01:42:44,853 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-30 01:42:44,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:42:44 BoogieIcfgContainer [2023-11-30 01:42:44,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 01:42:44,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 01:42:44,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 01:42:44,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 01:42:44,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:42:44" (1/3) ... [2023-11-30 01:42:44,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d867851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:42:44, skipping insertion in model container [2023-11-30 01:42:44,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:42:44" (2/3) ... [2023-11-30 01:42:44,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d867851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:42:44, skipping insertion in model container [2023-11-30 01:42:44,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:42:44" (3/3) ... [2023-11-30 01:42:44,859 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2023-11-30 01:42:44,870 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 01:42:44,870 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 01:42:44,870 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 01:42:44,906 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 01:42:44,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 214 flow [2023-11-30 01:42:44,963 INFO L124 PetriNetUnfolderBase]: 2/104 cut-off events. [2023-11-30 01:42:44,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 01:42:44,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-11-30 01:42:44,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 105 transitions, 214 flow [2023-11-30 01:42:44,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 104 transitions, 211 flow [2023-11-30 01:42:44,974 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 01:42:44,978 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6d0947ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 01:42:44,978 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-30 01:42:44,985 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 01:42:44,985 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2023-11-30 01:42:44,986 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 01:42:44,986 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:44,986 INFO L232 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] [2023-11-30 01:42:44,986 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:44,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:44,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1716493801, now seen corresponding path program 1 times [2023-11-30 01:42:44,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:44,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763757798] [2023-11-30 01:42:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:45,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763757798] [2023-11-30 01:42:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763757798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:42:45,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 01:42:45,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823499042] [2023-11-30 01:42:45,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:45,271 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 01:42:45,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:45,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 01:42:45,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 01:42:45,293 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-30 01:42:45,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-30 01:42:45,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:45,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-30 01:42:45,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:45,398 INFO L124 PetriNetUnfolderBase]: 11/242 cut-off events. [2023-11-30 01:42:45,398 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 01:42:45,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 242 events. 11/242 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 592 event pairs, 10 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 242. Up to 37 conditions per place. [2023-11-30 01:42:45,402 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 18 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2023-11-30 01:42:45,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 257 flow [2023-11-30 01:42:45,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 01:42:45,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 01:42:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-11-30 01:42:45,416 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2023-11-30 01:42:45,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-11-30 01:42:45,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-11-30 01:42:45,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:45,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-11-30 01:42:45,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-30 01:42:45,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-30 01:42:45,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-30 01:42:45,432 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 2 predicate places. [2023-11-30 01:42:45,432 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 107 transitions, 257 flow [2023-11-30 01:42:45,432 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-30 01:42:45,432 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:45,433 INFO L232 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] [2023-11-30 01:42:45,433 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 01:42:45,433 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:45,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:45,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1701978762, now seen corresponding path program 1 times [2023-11-30 01:42:45,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:45,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826527345] [2023-11-30 01:42:45,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:45,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:45,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:45,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826527345] [2023-11-30 01:42:45,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826527345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:42:45,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653654683] [2023-11-30 01:42:45,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:45,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:45,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:45,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:42:45,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 01:42:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:45,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 01:42:45,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:42:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:45,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:42:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:45,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653654683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 01:42:45,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 01:42:45,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-30 01:42:45,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822777211] [2023-11-30 01:42:45,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 01:42:45,736 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:42:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:45,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:42:45,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-30 01:42:45,738 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2023-11-30 01:42:45,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 107 transitions, 257 flow. Second operand has 10 states, 10 states have (on average 89.3) internal successors, (893), 10 states have internal predecessors, (893), 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) [2023-11-30 01:42:45,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:45,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2023-11-30 01:42:45,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:45,872 INFO L124 PetriNetUnfolderBase]: 11/249 cut-off events. [2023-11-30 01:42:45,872 INFO L125 PetriNetUnfolderBase]: For 20/28 co-relation queries the response was YES. [2023-11-30 01:42:45,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 249 events. 11/249 cut-off events. For 20/28 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 586 event pairs, 10 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 269. Up to 42 conditions per place. [2023-11-30 01:42:45,875 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 19 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2023-11-30 01:42:45,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 114 transitions, 337 flow [2023-11-30 01:42:45,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 01:42:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 01:42:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 813 transitions. [2023-11-30 01:42:45,877 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8603174603174604 [2023-11-30 01:42:45,877 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 813 transitions. [2023-11-30 01:42:45,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 813 transitions. [2023-11-30 01:42:45,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:45,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 813 transitions. [2023-11-30 01:42:45,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.33333333333333) internal successors, (813), 9 states have internal predecessors, (813), 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) [2023-11-30 01:42:45,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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) [2023-11-30 01:42:45,882 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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) [2023-11-30 01:42:45,883 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 10 predicate places. [2023-11-30 01:42:45,883 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 114 transitions, 337 flow [2023-11-30 01:42:45,884 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 89.3) internal successors, (893), 10 states have internal predecessors, (893), 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) [2023-11-30 01:42:45,884 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:45,884 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2023-11-30 01:42:45,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 01:42:46,088 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:46,089 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:46,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:46,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1750318762, now seen corresponding path program 2 times [2023-11-30 01:42:46,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:46,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362285797] [2023-11-30 01:42:46,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:46,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:46,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:46,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362285797] [2023-11-30 01:42:46,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362285797] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:42:46,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154997412] [2023-11-30 01:42:46,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:42:46,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:46,197 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:42:46,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 01:42:46,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:42:46,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:42:46,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 01:42:46,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:42:46,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-30 01:42:46,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-30 01:42:46,333 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:42:46,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-30 01:42:46,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:42:46,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-30 01:42:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-30 01:42:46,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:42:46,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154997412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:46,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:42:46,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-30 01:42:46,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040287694] [2023-11-30 01:42:46,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:46,380 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:42:46,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:46,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:42:46,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-30 01:42:46,382 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 105 [2023-11-30 01:42:46,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 114 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 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) [2023-11-30 01:42:46,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:46,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 105 [2023-11-30 01:42:46,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:46,884 INFO L124 PetriNetUnfolderBase]: 650/1895 cut-off events. [2023-11-30 01:42:46,884 INFO L125 PetriNetUnfolderBase]: For 455/459 co-relation queries the response was YES. [2023-11-30 01:42:46,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3656 conditions, 1895 events. 650/1895 cut-off events. For 455/459 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11953 event pairs, 257 based on Foata normal form. 0/1732 useless extension candidates. Maximal degree in co-relation 3573. Up to 688 conditions per place. [2023-11-30 01:42:46,891 INFO L140 encePairwiseOnDemand]: 83/105 looper letters, 199 selfloop transitions, 42 changer transitions 0/304 dead transitions. [2023-11-30 01:42:46,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 304 transitions, 1295 flow [2023-11-30 01:42:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:42:46,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:42:46,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2023-11-30 01:42:46,893 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8904761904761904 [2023-11-30 01:42:46,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 561 transitions. [2023-11-30 01:42:46,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 561 transitions. [2023-11-30 01:42:46,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:46,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 561 transitions. [2023-11-30 01:42:46,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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) [2023-11-30 01:42:46,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:46,895 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:46,896 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 15 predicate places. [2023-11-30 01:42:46,896 INFO L500 AbstractCegarLoop]: Abstraction has has 121 places, 304 transitions, 1295 flow [2023-11-30 01:42:46,896 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 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) [2023-11-30 01:42:46,896 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:46,897 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2023-11-30 01:42:46,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 01:42:47,101 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 01:42:47,102 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:47,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:47,102 INFO L85 PathProgramCache]: Analyzing trace with hash -181061404, now seen corresponding path program 1 times [2023-11-30 01:42:47,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:47,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077274309] [2023-11-30 01:42:47,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:47,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:47,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:47,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077274309] [2023-11-30 01:42:47,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077274309] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:42:47,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966132882] [2023-11-30 01:42:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:47,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:47,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:47,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:42:47,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 01:42:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:47,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 01:42:47,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:42:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:47,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:42:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:47,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966132882] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 01:42:47,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 01:42:47,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-30 01:42:47,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787391600] [2023-11-30 01:42:47,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 01:42:47,433 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 01:42:47,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 01:42:47,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:42:47,437 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2023-11-30 01:42:47,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 304 transitions, 1295 flow. Second operand has 18 states, 18 states have (on average 89.38888888888889) internal successors, (1609), 18 states have internal predecessors, (1609), 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) [2023-11-30 01:42:47,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:47,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2023-11-30 01:42:47,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:47,703 INFO L124 PetriNetUnfolderBase]: 650/1915 cut-off events. [2023-11-30 01:42:47,703 INFO L125 PetriNetUnfolderBase]: For 927/933 co-relation queries the response was YES. [2023-11-30 01:42:47,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3926 conditions, 1915 events. 650/1915 cut-off events. For 927/933 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11934 event pairs, 257 based on Foata normal form. 0/1752 useless extension candidates. Maximal degree in co-relation 3745. Up to 688 conditions per place. [2023-11-30 01:42:47,711 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 51 selfloop transitions, 21 changer transitions 0/324 dead transitions. [2023-11-30 01:42:47,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 324 transitions, 1551 flow [2023-11-30 01:42:47,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 01:42:47,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 01:42:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1879 transitions. [2023-11-30 01:42:47,714 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8521541950113378 [2023-11-30 01:42:47,714 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1879 transitions. [2023-11-30 01:42:47,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1879 transitions. [2023-11-30 01:42:47,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:47,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1879 transitions. [2023-11-30 01:42:47,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 89.47619047619048) internal successors, (1879), 21 states have internal predecessors, (1879), 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) [2023-11-30 01:42:47,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 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) [2023-11-30 01:42:47,720 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 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) [2023-11-30 01:42:47,720 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 35 predicate places. [2023-11-30 01:42:47,720 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 324 transitions, 1551 flow [2023-11-30 01:42:47,721 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 89.38888888888889) internal successors, (1609), 18 states have internal predecessors, (1609), 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) [2023-11-30 01:42:47,721 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:47,721 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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] [2023-11-30 01:42:47,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 01:42:47,926 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:47,926 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:47,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:47,926 INFO L85 PathProgramCache]: Analyzing trace with hash 361525540, now seen corresponding path program 2 times [2023-11-30 01:42:47,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:47,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772721017] [2023-11-30 01:42:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:47,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:48,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:48,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772721017] [2023-11-30 01:42:48,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772721017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:42:48,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268196574] [2023-11-30 01:42:48,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:42:48,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:48,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:48,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:42:48,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 01:42:48,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:42:48,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:42:48,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-30 01:42:48,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:42:48,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-30 01:42:48,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-30 01:42:48,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:42:48,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-30 01:42:48,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:42:48,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-30 01:42:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-30 01:42:48,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:42:48,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268196574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:48,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:42:48,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-30 01:42:48,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837962343] [2023-11-30 01:42:48,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:48,340 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:42:48,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:42:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-30 01:42:48,341 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 105 [2023-11-30 01:42:48,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 324 transitions, 1551 flow. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 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) [2023-11-30 01:42:48,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:48,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 105 [2023-11-30 01:42:48,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:48,640 INFO L124 PetriNetUnfolderBase]: 635/1852 cut-off events. [2023-11-30 01:42:48,640 INFO L125 PetriNetUnfolderBase]: For 1370/1434 co-relation queries the response was YES. [2023-11-30 01:42:48,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5167 conditions, 1852 events. 635/1852 cut-off events. For 1370/1434 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11400 event pairs, 194 based on Foata normal form. 0/1706 useless extension candidates. Maximal degree in co-relation 4982. Up to 1155 conditions per place. [2023-11-30 01:42:48,648 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 271 selfloop transitions, 25 changer transitions 0/379 dead transitions. [2023-11-30 01:42:48,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 379 transitions, 2411 flow [2023-11-30 01:42:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:42:48,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:42:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 429 transitions. [2023-11-30 01:42:48,650 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2023-11-30 01:42:48,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 429 transitions. [2023-11-30 01:42:48,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 429 transitions. [2023-11-30 01:42:48,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:48,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 429 transitions. [2023-11-30 01:42:48,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2023-11-30 01:42:48,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:48,652 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:48,654 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 39 predicate places. [2023-11-30 01:42:48,654 INFO L500 AbstractCegarLoop]: Abstraction has has 145 places, 379 transitions, 2411 flow [2023-11-30 01:42:48,654 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 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) [2023-11-30 01:42:48,655 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:48,655 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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] [2023-11-30 01:42:48,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 01:42:48,859 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:48,860 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:48,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash 816717979, now seen corresponding path program 1 times [2023-11-30 01:42:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:48,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343801775] [2023-11-30 01:42:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:49,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:49,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343801775] [2023-11-30 01:42:49,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343801775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:42:49,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885790282] [2023-11-30 01:42:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:49,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:49,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:49,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:42:49,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 01:42:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:49,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 01:42:49,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:42:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:49,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:42:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:42:49,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885790282] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 01:42:49,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 01:42:49,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-30 01:42:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045628553] [2023-11-30 01:42:49,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 01:42:49,350 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 01:42:49,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:49,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 01:42:49,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-30 01:42:49,353 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2023-11-30 01:42:49,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 379 transitions, 2411 flow. Second operand has 23 states, 23 states have (on average 89.52173913043478) internal successors, (2059), 23 states have internal predecessors, (2059), 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) [2023-11-30 01:42:49,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:49,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2023-11-30 01:42:49,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:49,736 INFO L124 PetriNetUnfolderBase]: 635/1867 cut-off events. [2023-11-30 01:42:49,736 INFO L125 PetriNetUnfolderBase]: For 2179/2245 co-relation queries the response was YES. [2023-11-30 01:42:49,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5451 conditions, 1867 events. 635/1867 cut-off events. For 2179/2245 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11388 event pairs, 194 based on Foata normal form. 0/1721 useless extension candidates. Maximal degree in co-relation 5152. Up to 1155 conditions per place. [2023-11-30 01:42:49,746 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 65 selfloop transitions, 30 changer transitions 0/394 dead transitions. [2023-11-30 01:42:49,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 394 transitions, 2715 flow [2023-11-30 01:42:49,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-30 01:42:49,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-30 01:42:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2676 transitions. [2023-11-30 01:42:49,751 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8495238095238096 [2023-11-30 01:42:49,751 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2676 transitions. [2023-11-30 01:42:49,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2676 transitions. [2023-11-30 01:42:49,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:49,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2676 transitions. [2023-11-30 01:42:49,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 89.2) internal successors, (2676), 30 states have internal predecessors, (2676), 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) [2023-11-30 01:42:49,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 states have internal predecessors, (3255), 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) [2023-11-30 01:42:49,761 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 states have internal predecessors, (3255), 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) [2023-11-30 01:42:49,761 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 68 predicate places. [2023-11-30 01:42:49,761 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 394 transitions, 2715 flow [2023-11-30 01:42:49,762 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 89.52173913043478) internal successors, (2059), 23 states have internal predecessors, (2059), 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) [2023-11-30 01:42:49,762 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:49,762 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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] [2023-11-30 01:42:49,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 01:42:49,967 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:49,967 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:49,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:49,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1013810418, now seen corresponding path program 2 times [2023-11-30 01:42:49,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:49,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537489746] [2023-11-30 01:42:49,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:49,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:42:50,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:50,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537489746] [2023-11-30 01:42:50,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537489746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:50,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:42:50,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 01:42:50,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24999549] [2023-11-30 01:42:50,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:50,270 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:42:50,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:42:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 01:42:50,271 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 105 [2023-11-30 01:42:50,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 394 transitions, 2715 flow. Second operand has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 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) [2023-11-30 01:42:50,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:50,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 105 [2023-11-30 01:42:50,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:50,752 INFO L124 PetriNetUnfolderBase]: 832/2339 cut-off events. [2023-11-30 01:42:50,752 INFO L125 PetriNetUnfolderBase]: For 3007/3195 co-relation queries the response was YES. [2023-11-30 01:42:50,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8335 conditions, 2339 events. 832/2339 cut-off events. For 3007/3195 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 15119 event pairs, 135 based on Foata normal form. 4/2167 useless extension candidates. Maximal degree in co-relation 8032. Up to 1443 conditions per place. [2023-11-30 01:42:50,764 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 383 selfloop transitions, 72 changer transitions 11/562 dead transitions. [2023-11-30 01:42:50,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 562 transitions, 4767 flow [2023-11-30 01:42:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:42:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:42:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-11-30 01:42:50,766 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7984126984126985 [2023-11-30 01:42:50,766 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-11-30 01:42:50,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-11-30 01:42:50,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:50,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-11-30 01:42:50,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2023-11-30 01:42:50,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:50,768 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:50,768 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 73 predicate places. [2023-11-30 01:42:50,769 INFO L500 AbstractCegarLoop]: Abstraction has has 179 places, 562 transitions, 4767 flow [2023-11-30 01:42:50,769 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 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) [2023-11-30 01:42:50,769 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:50,769 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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] [2023-11-30 01:42:50,769 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 01:42:50,769 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:50,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:50,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1269891308, now seen corresponding path program 1 times [2023-11-30 01:42:50,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:50,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704344040] [2023-11-30 01:42:50,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:50,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:42:51,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:51,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704344040] [2023-11-30 01:42:51,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704344040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:51,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:42:51,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 01:42:51,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273945829] [2023-11-30 01:42:51,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:51,051 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:42:51,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:51,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:42:51,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 01:42:51,052 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 105 [2023-11-30 01:42:51,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 562 transitions, 4767 flow. Second operand has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 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) [2023-11-30 01:42:51,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:51,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 105 [2023-11-30 01:42:51,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:51,568 INFO L124 PetriNetUnfolderBase]: 877/2385 cut-off events. [2023-11-30 01:42:51,568 INFO L125 PetriNetUnfolderBase]: For 4217/4379 co-relation queries the response was YES. [2023-11-30 01:42:51,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10249 conditions, 2385 events. 877/2385 cut-off events. For 4217/4379 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 15200 event pairs, 134 based on Foata normal form. 2/2223 useless extension candidates. Maximal degree in co-relation 9941. Up to 1574 conditions per place. [2023-11-30 01:42:51,581 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 463 selfloop transitions, 37 changer transitions 11/609 dead transitions. [2023-11-30 01:42:51,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 609 transitions, 6229 flow [2023-11-30 01:42:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:42:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:42:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2023-11-30 01:42:51,582 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6412698412698413 [2023-11-30 01:42:51,582 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 404 transitions. [2023-11-30 01:42:51,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 404 transitions. [2023-11-30 01:42:51,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:51,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 404 transitions. [2023-11-30 01:42:51,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 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) [2023-11-30 01:42:51,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:51,584 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:51,586 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 77 predicate places. [2023-11-30 01:42:51,586 INFO L500 AbstractCegarLoop]: Abstraction has has 183 places, 609 transitions, 6229 flow [2023-11-30 01:42:51,586 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 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) [2023-11-30 01:42:51,586 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:51,586 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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] [2023-11-30 01:42:51,587 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 01:42:51,587 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:51,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash -867132883, now seen corresponding path program 1 times [2023-11-30 01:42:51,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:51,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529047616] [2023-11-30 01:42:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:51,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:42:51,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:51,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529047616] [2023-11-30 01:42:51,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529047616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:51,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:42:51,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 01:42:51,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421470579] [2023-11-30 01:42:51,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:51,918 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:42:51,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:51,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:42:51,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 01:42:51,920 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 105 [2023-11-30 01:42:51,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 609 transitions, 6229 flow. Second operand has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 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) [2023-11-30 01:42:51,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:51,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 105 [2023-11-30 01:42:51,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:52,443 INFO L124 PetriNetUnfolderBase]: 1071/2815 cut-off events. [2023-11-30 01:42:52,443 INFO L125 PetriNetUnfolderBase]: For 6109/6197 co-relation queries the response was YES. [2023-11-30 01:42:52,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13939 conditions, 2815 events. 1071/2815 cut-off events. For 6109/6197 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18574 event pairs, 147 based on Foata normal form. 1/2620 useless extension candidates. Maximal degree in co-relation 13626. Up to 1848 conditions per place. [2023-11-30 01:42:52,459 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 490 selfloop transitions, 58 changer transitions 96/741 dead transitions. [2023-11-30 01:42:52,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 741 transitions, 8867 flow [2023-11-30 01:42:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:42:52,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:42:52,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 432 transitions. [2023-11-30 01:42:52,461 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2023-11-30 01:42:52,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 432 transitions. [2023-11-30 01:42:52,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 432 transitions. [2023-11-30 01:42:52,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:52,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 432 transitions. [2023-11-30 01:42:52,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 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) [2023-11-30 01:42:52,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:52,462 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:42:52,463 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 82 predicate places. [2023-11-30 01:42:52,463 INFO L500 AbstractCegarLoop]: Abstraction has has 188 places, 741 transitions, 8867 flow [2023-11-30 01:42:52,463 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 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) [2023-11-30 01:42:52,463 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:52,463 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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] [2023-11-30 01:42:52,463 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 01:42:52,464 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-30 01:42:52,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:52,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2058183973, now seen corresponding path program 1 times [2023-11-30 01:42:52,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:52,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375406750] [2023-11-30 01:42:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:52,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:42:52,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:52,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375406750] [2023-11-30 01:42:52,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375406750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:52,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:42:52,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 01:42:52,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344904695] [2023-11-30 01:42:52,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:52,563 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 01:42:52,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:52,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 01:42:52,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 01:42:52,564 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 105 [2023-11-30 01:42:52,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 741 transitions, 8867 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-11-30 01:42:52,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:52,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 105 [2023-11-30 01:42:52,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:52,710 INFO L124 PetriNetUnfolderBase]: 270/806 cut-off events. [2023-11-30 01:42:52,710 INFO L125 PetriNetUnfolderBase]: For 3153/3199 co-relation queries the response was YES. [2023-11-30 01:42:52,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4268 conditions, 806 events. 270/806 cut-off events. For 3153/3199 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3417 event pairs, 36 based on Foata normal form. 30/831 useless extension candidates. Maximal degree in co-relation 3941. Up to 546 conditions per place. [2023-11-30 01:42:52,713 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 0 selfloop transitions, 0 changer transitions 369/369 dead transitions. [2023-11-30 01:42:52,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 369 transitions, 4333 flow [2023-11-30 01:42:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 01:42:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 01:42:52,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-30 01:42:52,714 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2023-11-30 01:42:52,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-30 01:42:52,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-30 01:42:52,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:52,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-30 01:42:52,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2023-11-30 01:42:52,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-30 01:42:52,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-30 01:42:52,716 INFO L307 CegarLoopForPetriNet]: 106 programPoint places, 80 predicate places. [2023-11-30 01:42:52,716 INFO L500 AbstractCegarLoop]: Abstraction has has 186 places, 369 transitions, 4333 flow [2023-11-30 01:42:52,716 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-11-30 01:42:52,720 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/06-symbeq_23-idxsense_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 01:42:52,762 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-11-30 01:42:52,763 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-30 01:42:52,763 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-30 01:42:52,764 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-30 01:42:52,764 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-30 01:42:52,764 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-11-30 01:42:52,764 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-30 01:42:52,764 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-30 01:42:52,764 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-30 01:42:52,764 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 01:42:52,765 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2023-11-30 01:42:52,769 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 01:42:52,769 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 01:42:52,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:42:52 BasicIcfg [2023-11-30 01:42:52,774 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 01:42:52,774 INFO L158 Benchmark]: Toolchain (without parser) took 8700.35ms. Allocated memory was 348.1MB in the beginning and 830.5MB in the end (delta: 482.3MB). Free memory was 280.5MB in the beginning and 698.4MB in the end (delta: -417.9MB). Peak memory consumption was 471.5MB. Max. memory is 16.0GB. [2023-11-30 01:42:52,774 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 348.1MB. Free memory is still 294.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 01:42:52,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.71ms. Allocated memory was 348.1MB in the beginning and 627.0MB in the end (delta: 278.9MB). Free memory was 280.2MB in the beginning and 589.9MB in the end (delta: -309.8MB). Peak memory consumption was 28.2MB. Max. memory is 16.0GB. [2023-11-30 01:42:52,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.15ms. Allocated memory is still 627.0MB. Free memory was 589.9MB in the beginning and 588.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 01:42:52,775 INFO L158 Benchmark]: Boogie Preprocessor took 33.15ms. Allocated memory is still 627.0MB. Free memory was 588.3MB in the beginning and 586.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 01:42:52,775 INFO L158 Benchmark]: RCFGBuilder took 307.98ms. Allocated memory is still 627.0MB. Free memory was 586.2MB in the beginning and 567.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-30 01:42:52,775 INFO L158 Benchmark]: TraceAbstraction took 7918.29ms. Allocated memory was 627.0MB in the beginning and 830.5MB in the end (delta: 203.4MB). Free memory was 566.4MB in the beginning and 698.4MB in the end (delta: -132.0MB). Peak memory consumption was 476.9MB. Max. memory is 16.0GB. [2023-11-30 01:42:52,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 348.1MB. Free memory is still 294.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 382.71ms. Allocated memory was 348.1MB in the beginning and 627.0MB in the end (delta: 278.9MB). Free memory was 280.2MB in the beginning and 589.9MB in the end (delta: -309.8MB). Peak memory consumption was 28.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.15ms. Allocated memory is still 627.0MB. Free memory was 589.9MB in the beginning and 588.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.15ms. Allocated memory is still 627.0MB. Free memory was 588.3MB in the beginning and 586.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 307.98ms. Allocated memory is still 627.0MB. Free memory was 586.2MB in the beginning and 567.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 7918.29ms. Allocated memory was 627.0MB in the beginning and 830.5MB in the end (delta: 203.4MB). Free memory was 566.4MB in the beginning and 698.4MB in the end (delta: -132.0MB). Peak memory consumption was 476.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 132 locations, 9 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: 7.8s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 340 mSDsluCounter, 259 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 231 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1792 IncrementalHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 231 mSolverCounterUnsat, 219 mSDtfsCounter, 1792 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 504 GetRequests, 370 SyntacticMatches, 11 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8867occurred in iteration=9, InterpolantAutomatonStates: 96, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 917 NumberOfCodeBlocks, 867 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1044 ConstructedInterpolants, 0 QuantifiedInterpolants, 2111 SizeOfPredicates, 22 NumberOfNonLiveVariables, 592 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 1070/1593 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 01:42:52,798 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...