/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:05:11,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:05:12,064 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-VariableLbe.epf [2023-08-26 07:05:12,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:05:12,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:05:12,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:05:12,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:05:12,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:05:12,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:05:12,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:05:12,106 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:05:12,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:05:12,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:05:12,107 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:05:12,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:05:12,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:05:12,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:05:12,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:05:12,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:05:12,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:05:12,109 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:05:12,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:05:12,110 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:05:12,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:05:12,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:05:12,111 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:05:12,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:05:12,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:05:12,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:05:12,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:05:12,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:05:12,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:05:12,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:05:12,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:05:12,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:05:12,113 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:05:12,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:05:12,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:05:12,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:05:12,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:05:12,456 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:05:12,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-08-26 07:05:13,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:05:13,788 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:05:13,789 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-08-26 07:05:13,809 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f030661/156d5f7278d04e499cb8f869e692de04/FLAGc0eef216e [2023-08-26 07:05:13,821 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f030661/156d5f7278d04e499cb8f869e692de04 [2023-08-26 07:05:13,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:05:13,824 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:05:13,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:05:13,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:05:13,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:05:13,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:05:13" (1/1) ... [2023-08-26 07:05:13,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136f3cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:13, skipping insertion in model container [2023-08-26 07:05:13,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:05:13" (1/1) ... [2023-08-26 07:05:13,871 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:05:14,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:05:14,329 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:05:14,352 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-26 07:05:14,354 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-26 07:05:14,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:05:14,449 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:05:14,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14 WrapperNode [2023-08-26 07:05:14,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:05:14,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:05:14,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:05:14,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:05:14,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,514 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2023-08-26 07:05:14,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:05:14,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:05:14,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:05:14,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:05:14,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:05:14,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:05:14,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:05:14,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:05:14,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (1/1) ... [2023-08-26 07:05:14,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:05:14,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:05:14,588 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) [2023-08-26 07:05:14,611 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 [2023-08-26 07:05:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:05:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:05:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:05:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:05:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:05:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:05:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:05:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:05:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:05:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:05:14,628 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:05:14,749 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:05:14,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:05:14,890 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:05:14,897 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:05:14,897 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:05:14,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:05:14 BoogieIcfgContainer [2023-08-26 07:05:14,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:05:14,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:05:14,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:05:14,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:05:14,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:05:13" (1/3) ... [2023-08-26 07:05:14,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7982e291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:05:14, skipping insertion in model container [2023-08-26 07:05:14,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:14" (2/3) ... [2023-08-26 07:05:14,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7982e291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:05:14, skipping insertion in model container [2023-08-26 07:05:14,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:05:14" (3/3) ... [2023-08-26 07:05:14,905 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-08-26 07:05:14,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:05:14,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-26 07:05:14,922 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:05:14,968 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:05:15,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 183 flow [2023-08-26 07:05:15,073 INFO L124 PetriNetUnfolderBase]: 1/90 cut-off events. [2023-08-26 07:05:15,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:15,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 1/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-26 07:05:15,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 89 transitions, 183 flow [2023-08-26 07:05:15,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 86 transitions, 175 flow [2023-08-26 07:05:15,087 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:05:15,101 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 86 transitions, 175 flow [2023-08-26 07:05:15,108 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 86 transitions, 175 flow [2023-08-26 07:05:15,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 86 transitions, 175 flow [2023-08-26 07:05:15,159 INFO L124 PetriNetUnfolderBase]: 1/86 cut-off events. [2023-08-26 07:05:15,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:15,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 1/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-26 07:05:15,160 INFO L119 LiptonReduction]: Number of co-enabled transitions 570 [2023-08-26 07:05:19,654 INFO L134 LiptonReduction]: Checked pairs total: 2736 [2023-08-26 07:05:19,654 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-26 07:05:19,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:05:19,670 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@dffcbb0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:05:19,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-26 07:05:19,675 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:05:19,675 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-26 07:05:19,675 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:19,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:19,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:19,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:19,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:19,681 INFO L85 PathProgramCache]: Analyzing trace with hash -32859920, now seen corresponding path program 1 times [2023-08-26 07:05:19,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:19,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938663832] [2023-08-26 07:05:19,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:19,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:20,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:20,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938663832] [2023-08-26 07:05:20,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938663832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:20,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:20,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:05:20,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046547406] [2023-08-26 07:05:20,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:20,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:05:20,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:20,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:05:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:05:20,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 161 [2023-08-26 07:05:20,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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) [2023-08-26 07:05:20,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:20,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 161 [2023-08-26 07:05:20,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:20,540 INFO L124 PetriNetUnfolderBase]: 100/226 cut-off events. [2023-08-26 07:05:20,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:20,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 226 events. 100/226 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 885 event pairs, 27 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 446. Up to 153 conditions per place. [2023-08-26 07:05:20,546 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 26 selfloop transitions, 22 changer transitions 8/57 dead transitions. [2023-08-26 07:05:20,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 57 transitions, 229 flow [2023-08-26 07:05:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:05:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:05:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2023-08-26 07:05:20,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43167701863354035 [2023-08-26 07:05:20,568 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 417 transitions. [2023-08-26 07:05:20,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 417 transitions. [2023-08-26 07:05:20,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:20,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 417 transitions. [2023-08-26 07:05:20,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2023-08-26 07:05:20,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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) [2023-08-26 07:05:20,580 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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) [2023-08-26 07:05:20,581 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 417 transitions. [2023-08-26 07:05:20,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 57 transitions, 229 flow [2023-08-26 07:05:20,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 57 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:05:20,585 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2023-08-26 07:05:20,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2023-08-26 07:05:20,589 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-08-26 07:05:20,589 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2023-08-26 07:05:20,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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) [2023-08-26 07:05:20,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:20,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:20,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:05:20,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:20,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:20,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1414066238, now seen corresponding path program 1 times [2023-08-26 07:05:20,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:20,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390287015] [2023-08-26 07:05:20,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:20,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:20,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:20,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390287015] [2023-08-26 07:05:20,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390287015] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:20,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:20,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:05:20,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19320216] [2023-08-26 07:05:20,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:20,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:05:20,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:20,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:05:20,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:05:20,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 161 [2023-08-26 07:05:20,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 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) [2023-08-26 07:05:20,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:20,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 161 [2023-08-26 07:05:20,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:20,961 INFO L124 PetriNetUnfolderBase]: 140/310 cut-off events. [2023-08-26 07:05:20,962 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-08-26 07:05:20,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 310 events. 140/310 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1284 event pairs, 26 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 920. Up to 215 conditions per place. [2023-08-26 07:05:20,965 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 48 selfloop transitions, 26 changer transitions 19/93 dead transitions. [2023-08-26 07:05:20,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 93 transitions, 602 flow [2023-08-26 07:05:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:05:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:05:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2023-08-26 07:05:20,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4989648033126294 [2023-08-26 07:05:20,967 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 482 transitions. [2023-08-26 07:05:20,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 482 transitions. [2023-08-26 07:05:20,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:20,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 482 transitions. [2023-08-26 07:05:20,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 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) [2023-08-26 07:05:20,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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) [2023-08-26 07:05:20,972 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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) [2023-08-26 07:05:20,973 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 482 transitions. [2023-08-26 07:05:20,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 93 transitions, 602 flow [2023-08-26 07:05:20,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 93 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:05:20,978 INFO L231 Difference]: Finished difference. Result has 43 places, 62 transitions, 416 flow [2023-08-26 07:05:20,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=43, PETRI_TRANSITIONS=62} [2023-08-26 07:05:20,978 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2023-08-26 07:05:20,979 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 62 transitions, 416 flow [2023-08-26 07:05:20,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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) [2023-08-26 07:05:20,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:20,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:20,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:05:20,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:20,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2126396213, now seen corresponding path program 1 times [2023-08-26 07:05:20,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:20,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076333202] [2023-08-26 07:05:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:20,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:21,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:21,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076333202] [2023-08-26 07:05:21,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076333202] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:21,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:21,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:21,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303156741] [2023-08-26 07:05:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:21,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:21,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:21,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:21,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 62 transitions, 416 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:21,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:21,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:21,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:21,945 INFO L124 PetriNetUnfolderBase]: 179/414 cut-off events. [2023-08-26 07:05:21,945 INFO L125 PetriNetUnfolderBase]: For 405/405 co-relation queries the response was YES. [2023-08-26 07:05:21,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 414 events. 179/414 cut-off events. For 405/405 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2003 event pairs, 9 based on Foata normal form. 12/426 useless extension candidates. Maximal degree in co-relation 1642. Up to 177 conditions per place. [2023-08-26 07:05:21,953 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 92 selfloop transitions, 31 changer transitions 27/150 dead transitions. [2023-08-26 07:05:21,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 150 transitions, 1264 flow [2023-08-26 07:05:21,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:21,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 584 transitions. [2023-08-26 07:05:21,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3627329192546584 [2023-08-26 07:05:21,956 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 584 transitions. [2023-08-26 07:05:21,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 584 transitions. [2023-08-26 07:05:21,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:21,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 584 transitions. [2023-08-26 07:05:21,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.4) internal successors, (584), 10 states have internal predecessors, (584), 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) [2023-08-26 07:05:21,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:21,962 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:21,962 INFO L175 Difference]: Start difference. First operand has 43 places, 62 transitions, 416 flow. Second operand 10 states and 584 transitions. [2023-08-26 07:05:21,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 150 transitions, 1264 flow [2023-08-26 07:05:21,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 150 transitions, 1228 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-08-26 07:05:21,974 INFO L231 Difference]: Finished difference. Result has 58 places, 84 transitions, 704 flow [2023-08-26 07:05:21,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=704, PETRI_PLACES=58, PETRI_TRANSITIONS=84} [2023-08-26 07:05:21,975 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2023-08-26 07:05:21,978 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 84 transitions, 704 flow [2023-08-26 07:05:21,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:21,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:21,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:21,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:05:21,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:21,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash 324390159, now seen corresponding path program 2 times [2023-08-26 07:05:21,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:21,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980167450] [2023-08-26 07:05:21,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:21,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:22,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:22,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980167450] [2023-08-26 07:05:22,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980167450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:22,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:22,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:22,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888266428] [2023-08-26 07:05:22,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:22,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:22,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:22,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:22,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:22,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:22,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 84 transitions, 704 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:22,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:22,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:22,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:23,310 INFO L124 PetriNetUnfolderBase]: 181/418 cut-off events. [2023-08-26 07:05:23,310 INFO L125 PetriNetUnfolderBase]: For 1010/1010 co-relation queries the response was YES. [2023-08-26 07:05:23,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 418 events. 181/418 cut-off events. For 1010/1010 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2001 event pairs, 19 based on Foata normal form. 6/424 useless extension candidates. Maximal degree in co-relation 2017. Up to 126 conditions per place. [2023-08-26 07:05:23,313 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 76 selfloop transitions, 59 changer transitions 42/177 dead transitions. [2023-08-26 07:05:23,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 177 transitions, 1678 flow [2023-08-26 07:05:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:05:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:05:23,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 654 transitions. [2023-08-26 07:05:23,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36928289102202144 [2023-08-26 07:05:23,317 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 654 transitions. [2023-08-26 07:05:23,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 654 transitions. [2023-08-26 07:05:23,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:23,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 654 transitions. [2023-08-26 07:05:23,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.45454545454545) internal successors, (654), 11 states have internal predecessors, (654), 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) [2023-08-26 07:05:23,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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) [2023-08-26 07:05:23,323 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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) [2023-08-26 07:05:23,323 INFO L175 Difference]: Start difference. First operand has 58 places, 84 transitions, 704 flow. Second operand 11 states and 654 transitions. [2023-08-26 07:05:23,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 177 transitions, 1678 flow [2023-08-26 07:05:23,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 177 transitions, 1661 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:05:23,336 INFO L231 Difference]: Finished difference. Result has 70 places, 94 transitions, 979 flow [2023-08-26 07:05:23,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=979, PETRI_PLACES=70, PETRI_TRANSITIONS=94} [2023-08-26 07:05:23,337 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 46 predicate places. [2023-08-26 07:05:23,337 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 94 transitions, 979 flow [2023-08-26 07:05:23,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:23,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:23,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:23,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:05:23,338 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:23,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:23,339 INFO L85 PathProgramCache]: Analyzing trace with hash 488260135, now seen corresponding path program 1 times [2023-08-26 07:05:23,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:23,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838472651] [2023-08-26 07:05:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:23,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:23,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:23,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838472651] [2023-08-26 07:05:23,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838472651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:23,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:23,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:23,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678927401] [2023-08-26 07:05:23,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:23,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:23,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:23,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:23,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:23,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:23,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 94 transitions, 979 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:23,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:23,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:23,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:24,119 INFO L124 PetriNetUnfolderBase]: 192/444 cut-off events. [2023-08-26 07:05:24,119 INFO L125 PetriNetUnfolderBase]: For 1981/1981 co-relation queries the response was YES. [2023-08-26 07:05:24,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 444 events. 192/444 cut-off events. For 1981/1981 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2224 event pairs, 6 based on Foata normal form. 15/459 useless extension candidates. Maximal degree in co-relation 2522. Up to 169 conditions per place. [2023-08-26 07:05:24,126 INFO L140 encePairwiseOnDemand]: 151/161 looper letters, 81 selfloop transitions, 22 changer transitions 84/187 dead transitions. [2023-08-26 07:05:24,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 187 transitions, 2332 flow [2023-08-26 07:05:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:24,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:24,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 581 transitions. [2023-08-26 07:05:24,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36086956521739133 [2023-08-26 07:05:24,134 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 581 transitions. [2023-08-26 07:05:24,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 581 transitions. [2023-08-26 07:05:24,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:24,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 581 transitions. [2023-08-26 07:05:24,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.1) internal successors, (581), 10 states have internal predecessors, (581), 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) [2023-08-26 07:05:24,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:24,139 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:24,139 INFO L175 Difference]: Start difference. First operand has 70 places, 94 transitions, 979 flow. Second operand 10 states and 581 transitions. [2023-08-26 07:05:24,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 187 transitions, 2332 flow [2023-08-26 07:05:24,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 187 transitions, 2290 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-26 07:05:24,161 INFO L231 Difference]: Finished difference. Result has 79 places, 86 transitions, 942 flow [2023-08-26 07:05:24,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=942, PETRI_PLACES=79, PETRI_TRANSITIONS=86} [2023-08-26 07:05:24,163 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 55 predicate places. [2023-08-26 07:05:24,163 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 86 transitions, 942 flow [2023-08-26 07:05:24,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:24,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:24,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:24,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:05:24,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:24,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:24,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1405280377, now seen corresponding path program 2 times [2023-08-26 07:05:24,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:24,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763503638] [2023-08-26 07:05:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:24,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:24,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:24,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763503638] [2023-08-26 07:05:24,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763503638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:24,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:24,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:24,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314911292] [2023-08-26 07:05:24,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:24,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:24,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:24,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:24,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:24,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 86 transitions, 942 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:24,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:24,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:24,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:25,285 INFO L124 PetriNetUnfolderBase]: 90/232 cut-off events. [2023-08-26 07:05:25,286 INFO L125 PetriNetUnfolderBase]: For 1177/1177 co-relation queries the response was YES. [2023-08-26 07:05:25,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 232 events. 90/232 cut-off events. For 1177/1177 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 954 event pairs, 14 based on Foata normal form. 6/238 useless extension candidates. Maximal degree in co-relation 1418. Up to 76 conditions per place. [2023-08-26 07:05:25,289 INFO L140 encePairwiseOnDemand]: 147/161 looper letters, 81 selfloop transitions, 53 changer transitions 9/143 dead transitions. [2023-08-26 07:05:25,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 143 transitions, 1856 flow [2023-08-26 07:05:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 586 transitions. [2023-08-26 07:05:25,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3639751552795031 [2023-08-26 07:05:25,292 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 586 transitions. [2023-08-26 07:05:25,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 586 transitions. [2023-08-26 07:05:25,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:25,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 586 transitions. [2023-08-26 07:05:25,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 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) [2023-08-26 07:05:25,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:25,297 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:25,297 INFO L175 Difference]: Start difference. First operand has 79 places, 86 transitions, 942 flow. Second operand 10 states and 586 transitions. [2023-08-26 07:05:25,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 143 transitions, 1856 flow [2023-08-26 07:05:25,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 143 transitions, 1697 flow, removed 69 selfloop flow, removed 4 redundant places. [2023-08-26 07:05:25,310 INFO L231 Difference]: Finished difference. Result has 88 places, 96 transitions, 1094 flow [2023-08-26 07:05:25,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1094, PETRI_PLACES=88, PETRI_TRANSITIONS=96} [2023-08-26 07:05:25,311 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 64 predicate places. [2023-08-26 07:05:25,311 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 96 transitions, 1094 flow [2023-08-26 07:05:25,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:25,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:25,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:25,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:05:25,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:25,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:25,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1753622701, now seen corresponding path program 3 times [2023-08-26 07:05:25,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:25,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872306243] [2023-08-26 07:05:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:25,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:25,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:25,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:25,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872306243] [2023-08-26 07:05:25,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872306243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:25,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:25,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:25,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165148954] [2023-08-26 07:05:25,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:25,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:25,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:25,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:25,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:25,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:25,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 96 transitions, 1094 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:25,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:25,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:25,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:26,068 INFO L124 PetriNetUnfolderBase]: 108/276 cut-off events. [2023-08-26 07:05:26,068 INFO L125 PetriNetUnfolderBase]: For 1742/1742 co-relation queries the response was YES. [2023-08-26 07:05:26,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1850 conditions, 276 events. 108/276 cut-off events. For 1742/1742 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1219 event pairs, 16 based on Foata normal form. 11/287 useless extension candidates. Maximal degree in co-relation 1808. Up to 83 conditions per place. [2023-08-26 07:05:26,071 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 69 selfloop transitions, 21 changer transitions 63/153 dead transitions. [2023-08-26 07:05:26,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 153 transitions, 2057 flow [2023-08-26 07:05:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:26,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 577 transitions. [2023-08-26 07:05:26,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35838509316770184 [2023-08-26 07:05:26,074 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 577 transitions. [2023-08-26 07:05:26,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 577 transitions. [2023-08-26 07:05:26,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:26,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 577 transitions. [2023-08-26 07:05:26,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 57.7) internal successors, (577), 10 states have internal predecessors, (577), 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) [2023-08-26 07:05:26,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:26,079 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:26,079 INFO L175 Difference]: Start difference. First operand has 88 places, 96 transitions, 1094 flow. Second operand 10 states and 577 transitions. [2023-08-26 07:05:26,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 153 transitions, 2057 flow [2023-08-26 07:05:26,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 153 transitions, 2009 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-08-26 07:05:26,095 INFO L231 Difference]: Finished difference. Result has 96 places, 86 transitions, 1027 flow [2023-08-26 07:05:26,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1059, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1027, PETRI_PLACES=96, PETRI_TRANSITIONS=86} [2023-08-26 07:05:26,096 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 72 predicate places. [2023-08-26 07:05:26,096 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 86 transitions, 1027 flow [2023-08-26 07:05:26,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:26,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:26,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:26,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:05:26,097 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:26,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1336261357, now seen corresponding path program 4 times [2023-08-26 07:05:26,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:26,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538572412] [2023-08-26 07:05:26,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:26,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:26,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:26,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538572412] [2023-08-26 07:05:26,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538572412] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:26,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:26,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:26,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940312492] [2023-08-26 07:05:26,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:26,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:26,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:26,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:26,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:26,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:26,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 1027 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:26,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:26,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:26,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:27,006 INFO L124 PetriNetUnfolderBase]: 81/225 cut-off events. [2023-08-26 07:05:27,006 INFO L125 PetriNetUnfolderBase]: For 1513/1513 co-relation queries the response was YES. [2023-08-26 07:05:27,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 225 events. 81/225 cut-off events. For 1513/1513 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 960 event pairs, 14 based on Foata normal form. 11/236 useless extension candidates. Maximal degree in co-relation 1493. Up to 97 conditions per place. [2023-08-26 07:05:27,009 INFO L140 encePairwiseOnDemand]: 147/161 looper letters, 65 selfloop transitions, 36 changer transitions 29/130 dead transitions. [2023-08-26 07:05:27,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 130 transitions, 1780 flow [2023-08-26 07:05:27,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 580 transitions. [2023-08-26 07:05:27,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36024844720496896 [2023-08-26 07:05:27,011 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 580 transitions. [2023-08-26 07:05:27,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 580 transitions. [2023-08-26 07:05:27,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:27,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 580 transitions. [2023-08-26 07:05:27,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 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) [2023-08-26 07:05:27,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:27,015 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:27,015 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 1027 flow. Second operand 10 states and 580 transitions. [2023-08-26 07:05:27,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 130 transitions, 1780 flow [2023-08-26 07:05:27,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 130 transitions, 1685 flow, removed 26 selfloop flow, removed 9 redundant places. [2023-08-26 07:05:27,027 INFO L231 Difference]: Finished difference. Result has 96 places, 86 transitions, 1058 flow [2023-08-26 07:05:27,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1058, PETRI_PLACES=96, PETRI_TRANSITIONS=86} [2023-08-26 07:05:27,028 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 72 predicate places. [2023-08-26 07:05:27,028 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 86 transitions, 1058 flow [2023-08-26 07:05:27,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:27,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:27,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:27,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:05:27,029 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:27,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1604110343, now seen corresponding path program 5 times [2023-08-26 07:05:27,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:27,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971925043] [2023-08-26 07:05:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:27,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:27,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:27,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971925043] [2023-08-26 07:05:27,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971925043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:27,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:27,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:27,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300237321] [2023-08-26 07:05:27,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:27,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:27,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:27,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:27,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:27,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:27,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 1058 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:27,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:27,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:27,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:27,790 INFO L124 PetriNetUnfolderBase]: 75/202 cut-off events. [2023-08-26 07:05:27,790 INFO L125 PetriNetUnfolderBase]: For 1541/1541 co-relation queries the response was YES. [2023-08-26 07:05:27,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 202 events. 75/202 cut-off events. For 1541/1541 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 809 event pairs, 13 based on Foata normal form. 11/213 useless extension candidates. Maximal degree in co-relation 1377. Up to 52 conditions per place. [2023-08-26 07:05:27,793 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 34 selfloop transitions, 26 changer transitions 54/114 dead transitions. [2023-08-26 07:05:27,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 114 transitions, 1605 flow [2023-08-26 07:05:27,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 575 transitions. [2023-08-26 07:05:27,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2023-08-26 07:05:27,795 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 575 transitions. [2023-08-26 07:05:27,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 575 transitions. [2023-08-26 07:05:27,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:27,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 575 transitions. [2023-08-26 07:05:27,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 57.5) internal successors, (575), 10 states have internal predecessors, (575), 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) [2023-08-26 07:05:27,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:27,799 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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) [2023-08-26 07:05:27,799 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 1058 flow. Second operand 10 states and 575 transitions. [2023-08-26 07:05:27,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 114 transitions, 1605 flow [2023-08-26 07:05:27,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 114 transitions, 1443 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-08-26 07:05:27,810 INFO L231 Difference]: Finished difference. Result has 92 places, 53 transitions, 601 flow [2023-08-26 07:05:27,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=601, PETRI_PLACES=92, PETRI_TRANSITIONS=53} [2023-08-26 07:05:27,811 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 68 predicate places. [2023-08-26 07:05:27,811 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 53 transitions, 601 flow [2023-08-26 07:05:27,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:27,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:27,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:27,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:05:27,812 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:27,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:27,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1373690143, now seen corresponding path program 3 times [2023-08-26 07:05:27,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:27,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274510857] [2023-08-26 07:05:27,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:28,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:28,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274510857] [2023-08-26 07:05:28,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274510857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:28,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:28,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:28,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691197877] [2023-08-26 07:05:28,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:28,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:28,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:28,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:28,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:28,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 53 transitions, 601 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:28,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:28,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:28,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:28,404 INFO L124 PetriNetUnfolderBase]: 70/185 cut-off events. [2023-08-26 07:05:28,405 INFO L125 PetriNetUnfolderBase]: For 1249/1249 co-relation queries the response was YES. [2023-08-26 07:05:28,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 185 events. 70/185 cut-off events. For 1249/1249 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 730 event pairs, 8 based on Foata normal form. 15/200 useless extension candidates. Maximal degree in co-relation 1202. Up to 83 conditions per place. [2023-08-26 07:05:28,406 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 37 selfloop transitions, 4 changer transitions 69/110 dead transitions. [2023-08-26 07:05:28,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 1477 flow [2023-08-26 07:05:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 07:05:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 07:05:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 505 transitions. [2023-08-26 07:05:28,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34851621808143546 [2023-08-26 07:05:28,409 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 505 transitions. [2023-08-26 07:05:28,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 505 transitions. [2023-08-26 07:05:28,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:28,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 505 transitions. [2023-08-26 07:05:28,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 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) [2023-08-26 07:05:28,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2023-08-26 07:05:28,413 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2023-08-26 07:05:28,413 INFO L175 Difference]: Start difference. First operand has 92 places, 53 transitions, 601 flow. Second operand 9 states and 505 transitions. [2023-08-26 07:05:28,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 1477 flow [2023-08-26 07:05:28,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 110 transitions, 1110 flow, removed 21 selfloop flow, removed 27 redundant places. [2023-08-26 07:05:28,420 INFO L231 Difference]: Finished difference. Result has 67 places, 40 transitions, 362 flow [2023-08-26 07:05:28,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=362, PETRI_PLACES=67, PETRI_TRANSITIONS=40} [2023-08-26 07:05:28,421 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 43 predicate places. [2023-08-26 07:05:28,421 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 40 transitions, 362 flow [2023-08-26 07:05:28,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:28,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:28,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:28,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 07:05:28,422 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:28,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:28,422 INFO L85 PathProgramCache]: Analyzing trace with hash 371210079, now seen corresponding path program 4 times [2023-08-26 07:05:28,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:28,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639653007] [2023-08-26 07:05:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:28,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:28,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:28,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639653007] [2023-08-26 07:05:28,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639653007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:28,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:28,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:28,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051621537] [2023-08-26 07:05:28,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:28,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:28,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:28,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:28,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:28,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:28,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 40 transitions, 362 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:28,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:28,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:28,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:28,952 INFO L124 PetriNetUnfolderBase]: 36/112 cut-off events. [2023-08-26 07:05:28,952 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 07:05:28,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 112 events. 36/112 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 372 event pairs, 7 based on Foata normal form. 11/123 useless extension candidates. Maximal degree in co-relation 572. Up to 59 conditions per place. [2023-08-26 07:05:28,954 INFO L140 encePairwiseOnDemand]: 152/161 looper letters, 31 selfloop transitions, 15 changer transitions 29/75 dead transitions. [2023-08-26 07:05:28,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 788 flow [2023-08-26 07:05:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 07:05:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 07:05:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 505 transitions. [2023-08-26 07:05:28,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34851621808143546 [2023-08-26 07:05:28,956 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 505 transitions. [2023-08-26 07:05:28,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 505 transitions. [2023-08-26 07:05:28,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:28,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 505 transitions. [2023-08-26 07:05:28,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 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) [2023-08-26 07:05:28,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2023-08-26 07:05:28,959 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2023-08-26 07:05:28,960 INFO L175 Difference]: Start difference. First operand has 67 places, 40 transitions, 362 flow. Second operand 9 states and 505 transitions. [2023-08-26 07:05:28,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 788 flow [2023-08-26 07:05:28,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 688 flow, removed 25 selfloop flow, removed 14 redundant places. [2023-08-26 07:05:28,963 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 356 flow [2023-08-26 07:05:28,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=356, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2023-08-26 07:05:28,964 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 37 predicate places. [2023-08-26 07:05:28,964 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 356 flow [2023-08-26 07:05:28,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:28,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:28,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:28,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 07:05:28,965 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:28,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:28,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1851226959, now seen corresponding path program 5 times [2023-08-26 07:05:28,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:28,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222672287] [2023-08-26 07:05:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:28,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:29,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222672287] [2023-08-26 07:05:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222672287] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:29,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:05:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684962595] [2023-08-26 07:05:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:29,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:05:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:05:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:05:29,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 161 [2023-08-26 07:05:29,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 40 transitions, 356 flow. Second operand has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:29,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:29,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 161 [2023-08-26 07:05:29,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:29,552 INFO L124 PetriNetUnfolderBase]: 19/63 cut-off events. [2023-08-26 07:05:29,552 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2023-08-26 07:05:29,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 63 events. 19/63 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 11/74 useless extension candidates. Maximal degree in co-relation 325. Up to 25 conditions per place. [2023-08-26 07:05:29,553 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-08-26 07:05:29,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 57 transitions, 577 flow [2023-08-26 07:05:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 07:05:29,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 07:05:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 494 transitions. [2023-08-26 07:05:29,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3409247757073844 [2023-08-26 07:05:29,555 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 494 transitions. [2023-08-26 07:05:29,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 494 transitions. [2023-08-26 07:05:29,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:29,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 494 transitions. [2023-08-26 07:05:29,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.888888888888886) internal successors, (494), 9 states have internal predecessors, (494), 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) [2023-08-26 07:05:29,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2023-08-26 07:05:29,559 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2023-08-26 07:05:29,559 INFO L175 Difference]: Start difference. First operand has 61 places, 40 transitions, 356 flow. Second operand 9 states and 494 transitions. [2023-08-26 07:05:29,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 57 transitions, 577 flow [2023-08-26 07:05:29,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 512 flow, removed 10 selfloop flow, removed 9 redundant places. [2023-08-26 07:05:29,561 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2023-08-26 07:05:29,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2023-08-26 07:05:29,562 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 33 predicate places. [2023-08-26 07:05:29,562 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2023-08-26 07:05:29,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.2) internal successors, (522), 10 states have internal predecessors, (522), 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) [2023-08-26 07:05:29,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-26 07:05:29,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-26 07:05:29,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-26 07:05:29,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-26 07:05:29,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 07:05:29,566 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1] [2023-08-26 07:05:29,569 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:05:29,570 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:05:29,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:05:29 BasicIcfg [2023-08-26 07:05:29,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:05:29,572 INFO L158 Benchmark]: Toolchain (without parser) took 15748.61ms. Allocated memory was 356.5MB in the beginning and 633.3MB in the end (delta: 276.8MB). Free memory was 331.1MB in the beginning and 296.8MB in the end (delta: 34.2MB). Peak memory consumption was 314.0MB. Max. memory is 16.0GB. [2023-08-26 07:05:29,573 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 333.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:05:29,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.63ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 303.4MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 07:05:29,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.16ms. Allocated memory is still 356.5MB. Free memory was 303.4MB in the beginning and 300.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:05:29,573 INFO L158 Benchmark]: Boogie Preprocessor took 37.84ms. Allocated memory is still 356.5MB. Free memory was 300.9MB in the beginning and 299.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:05:29,573 INFO L158 Benchmark]: RCFGBuilder took 345.19ms. Allocated memory is still 356.5MB. Free memory was 299.2MB in the beginning and 283.9MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 07:05:29,574 INFO L158 Benchmark]: TraceAbstraction took 14671.62ms. Allocated memory was 356.5MB in the beginning and 633.3MB in the end (delta: 276.8MB). Free memory was 283.3MB in the beginning and 296.8MB in the end (delta: -13.6MB). Peak memory consumption was 265.8MB. Max. memory is 16.0GB. [2023-08-26 07:05:29,575 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 333.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 624.63ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 303.4MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.16ms. Allocated memory is still 356.5MB. Free memory was 303.4MB in the beginning and 300.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.84ms. Allocated memory is still 356.5MB. Free memory was 300.9MB in the beginning and 299.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 345.19ms. Allocated memory is still 356.5MB. Free memory was 299.2MB in the beginning and 283.9MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 14671.62ms. Allocated memory was 356.5MB in the beginning and 633.3MB in the end (delta: 276.8MB). Free memory was 283.3MB in the beginning and 296.8MB in the end (delta: -13.6MB). Peak memory consumption was 265.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 89 PlacesBefore, 24 PlacesAfterwards, 86 TransitionsBefore, 20 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 2736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 871, independent: 625, independent conditional: 0, independent unconditional: 625, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 278, independent: 254, independent conditional: 0, independent unconditional: 254, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 871, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 278, unknown conditional: 0, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: 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, 105 locations, 4 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: 14.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 479 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 479 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 273 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2105 IncrementalHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 273 mSolverCounterUnsat, 12 mSDtfsCounter, 2105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1094occurred in iteration=6, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 3258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:05:29,594 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...