/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/weaver/popl20-more-min-le-max.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 10:22:56,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 10:22:56,782 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 10:22:56,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 10:22:56,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 10:22:56,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 10:22:56,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 10:22:56,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 10:22:56,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 10:22:56,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 10:22:56,813 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 10:22:56,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 10:22:56,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 10:22:56,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 10:22:56,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 10:22:56,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 10:22:56,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 10:22:56,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 10:22:56,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 10:22:56,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 10:22:56,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 10:22:56,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 10:22:56,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 10:22:56,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 10:22:56,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 10:22:56,818 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 10:22:56,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 10:22:56,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 10:22:56,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 10:22:56,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 10:22:56,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 10:22:56,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 10:22:56,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 10:22:56,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 10:22:56,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 10:22:56,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 10:22:57,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 10:22:57,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 10:22:57,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 10:22:57,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 10:22:57,147 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 10:22:57,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2023-08-26 10:22:58,345 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 10:22:58,575 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 10:22:58,575 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2023-08-26 10:22:58,588 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ede85eb/72fb4403e8df49d1b1656de4be7b335c/FLAGf008a3fef [2023-08-26 10:22:58,607 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ede85eb/72fb4403e8df49d1b1656de4be7b335c [2023-08-26 10:22:58,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 10:22:58,613 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 10:22:58,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 10:22:58,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 10:22:58,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 10:22:58,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:58,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5783993e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58, skipping insertion in model container [2023-08-26 10:22:58,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:58,644 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 10:22:58,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 10:22:58,842 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 10:22:58,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 10:22:58,890 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 10:22:58,891 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 10:22:58,896 INFO L206 MainTranslator]: Completed translation [2023-08-26 10:22:58,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58 WrapperNode [2023-08-26 10:22:58,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 10:22:58,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 10:22:58,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 10:22:58,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 10:22:58,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:58,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:58,965 INFO L138 Inliner]: procedures = 24, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 167 [2023-08-26 10:22:58,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 10:22:58,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 10:22:58,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 10:22:58,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 10:22:58,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:58,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:58,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:58,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:59,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:59,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:59,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:59,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:59,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 10:22:59,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 10:22:59,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 10:22:59,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 10:22:59,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (1/1) ... [2023-08-26 10:22:59,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 10:22:59,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 10:22:59,062 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 10:22:59,085 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 10:22:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 10:22:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 10:22:59,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 10:22:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 10:22:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 10:22:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 10:22:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 10:22:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 10:22:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 10:22:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 10:22:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 10:22:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 10:22:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 10:22:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 10:22:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 10:22:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 10:22:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 10:22:59,101 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 10:22:59,214 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 10:22:59,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 10:22:59,721 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 10:22:59,870 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 10:22:59,870 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-26 10:22:59,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:22:59 BoogieIcfgContainer [2023-08-26 10:22:59,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 10:22:59,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 10:22:59,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 10:22:59,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 10:22:59,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:22:58" (1/3) ... [2023-08-26 10:22:59,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2695e309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:22:59, skipping insertion in model container [2023-08-26 10:22:59,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:22:58" (2/3) ... [2023-08-26 10:22:59,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2695e309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:22:59, skipping insertion in model container [2023-08-26 10:22:59,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:22:59" (3/3) ... [2023-08-26 10:22:59,880 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2023-08-26 10:22:59,895 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 10:22:59,895 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-26 10:22:59,896 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 10:22:59,966 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 10:23:00,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 237 transitions, 498 flow [2023-08-26 10:23:00,084 INFO L124 PetriNetUnfolderBase]: 10/234 cut-off events. [2023-08-26 10:23:00,084 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 10:23:00,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 234 events. 10/234 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 215 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 180. Up to 2 conditions per place. [2023-08-26 10:23:00,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 237 transitions, 498 flow [2023-08-26 10:23:00,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 223 transitions, 464 flow [2023-08-26 10:23:00,096 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 10:23:00,104 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 223 transitions, 464 flow [2023-08-26 10:23:00,109 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 223 transitions, 464 flow [2023-08-26 10:23:00,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 223 transitions, 464 flow [2023-08-26 10:23:00,171 INFO L124 PetriNetUnfolderBase]: 10/223 cut-off events. [2023-08-26 10:23:00,171 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 10:23:00,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 223 events. 10/223 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 217 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 180. Up to 2 conditions per place. [2023-08-26 10:23:00,177 INFO L119 LiptonReduction]: Number of co-enabled transitions 3404 [2023-08-26 10:23:08,209 INFO L134 LiptonReduction]: Checked pairs total: 21945 [2023-08-26 10:23:08,210 INFO L136 LiptonReduction]: Total number of compositions: 223 [2023-08-26 10:23:08,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 10:23:08,227 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;@10943e7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 10:23:08,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-26 10:23:08,229 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 10:23:08,229 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 10:23:08,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 10:23:08,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:08,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 10:23:08,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:08,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 974, now seen corresponding path program 1 times [2023-08-26 10:23:08,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:08,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669527430] [2023-08-26 10:23:08,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:08,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:08,328 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 10:23:08,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:08,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669527430] [2023-08-26 10:23:08,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669527430] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:23:08,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:23:08,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 10:23:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358085063] [2023-08-26 10:23:08,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:08,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 10:23:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:08,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 10:23:08,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 10:23:08,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 460 [2023-08-26 10:23:08,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 154 flow. Second operand has 2 states, 2 states have (on average 205.5) internal successors, (411), 2 states have internal predecessors, (411), 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 10:23:08,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:08,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 460 [2023-08-26 10:23:08,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:08,492 INFO L124 PetriNetUnfolderBase]: 211/442 cut-off events. [2023-08-26 10:23:08,492 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-08-26 10:23:08,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 442 events. 211/442 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2068 event pairs, 118 based on Foata normal form. 90/447 useless extension candidates. Maximal degree in co-relation 659. Up to 308 conditions per place. [2023-08-26 10:23:08,500 INFO L140 encePairwiseOnDemand]: 430/460 looper letters, 21 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2023-08-26 10:23:08,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 38 transitions, 136 flow [2023-08-26 10:23:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 10:23:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 10:23:08,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 461 transitions. [2023-08-26 10:23:08,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010869565217392 [2023-08-26 10:23:08,520 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 461 transitions. [2023-08-26 10:23:08,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 461 transitions. [2023-08-26 10:23:08,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:08,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 461 transitions. [2023-08-26 10:23:08,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 230.5) internal successors, (461), 2 states have internal predecessors, (461), 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 10:23:08,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 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 10:23:08,535 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 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 10:23:08,537 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 154 flow. Second operand 2 states and 461 transitions. [2023-08-26 10:23:08,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 38 transitions, 136 flow [2023-08-26 10:23:08,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 124 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 10:23:08,542 INFO L231 Difference]: Finished difference. Result has 40 places, 38 transitions, 82 flow [2023-08-26 10:23:08,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=40, PETRI_TRANSITIONS=38} [2023-08-26 10:23:08,546 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -33 predicate places. [2023-08-26 10:23:08,546 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 82 flow [2023-08-26 10:23:08,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 205.5) internal successors, (411), 2 states have internal predecessors, (411), 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 10:23:08,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:08,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 10:23:08,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 10:23:08,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:08,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:08,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1045696553, now seen corresponding path program 1 times [2023-08-26 10:23:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:08,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489898332] [2023-08-26 10:23:08,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:08,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:08,727 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 10:23:08,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:08,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489898332] [2023-08-26 10:23:08,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489898332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:23:08,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:23:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 10:23:08,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932191860] [2023-08-26 10:23:08,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:08,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 10:23:08,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:08,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 10:23:08,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 10:23:08,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 10:23:08,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 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 10:23:08,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:08,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 10:23:08,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:08,824 INFO L124 PetriNetUnfolderBase]: 338/676 cut-off events. [2023-08-26 10:23:08,824 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-26 10:23:08,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1233 conditions, 676 events. 338/676 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3108 event pairs, 271 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 1230. Up to 523 conditions per place. [2023-08-26 10:23:08,828 INFO L140 encePairwiseOnDemand]: 457/460 looper letters, 23 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-26 10:23:08,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 126 flow [2023-08-26 10:23:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 10:23:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 10:23:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2023-08-26 10:23:08,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318840579710145 [2023-08-26 10:23:08,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2023-08-26 10:23:08,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2023-08-26 10:23:08,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:08,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2023-08-26 10:23:08,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 10:23:08,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 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 10:23:08,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 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 10:23:08,837 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 82 flow. Second operand 3 states and 596 transitions. [2023-08-26 10:23:08,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 126 flow [2023-08-26 10:23:08,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 10:23:08,838 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 80 flow [2023-08-26 10:23:08,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2023-08-26 10:23:08,839 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -33 predicate places. [2023-08-26 10:23:08,839 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 80 flow [2023-08-26 10:23:08,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 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 10:23:08,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:08,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:23:08,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 10:23:08,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:08,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:08,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1080860672, now seen corresponding path program 1 times [2023-08-26 10:23:08,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:08,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146342581] [2023-08-26 10:23:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:08,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:09,315 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 10:23:09,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:09,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146342581] [2023-08-26 10:23:09,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146342581] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:23:09,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:23:09,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 10:23:09,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158723296] [2023-08-26 10:23:09,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:09,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 10:23:09,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:09,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 10:23:09,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 10:23:09,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 460 [2023-08-26 10:23:09,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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 10:23:09,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:09,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 460 [2023-08-26 10:23:09,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:09,666 INFO L124 PetriNetUnfolderBase]: 562/812 cut-off events. [2023-08-26 10:23:09,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 10:23:09,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1618 conditions, 812 events. 562/812 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3318 event pairs, 56 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 1614. Up to 323 conditions per place. [2023-08-26 10:23:09,672 INFO L140 encePairwiseOnDemand]: 455/460 looper letters, 50 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2023-08-26 10:23:09,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 234 flow [2023-08-26 10:23:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 10:23:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 10:23:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1033 transitions. [2023-08-26 10:23:09,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37427536231884057 [2023-08-26 10:23:09,676 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1033 transitions. [2023-08-26 10:23:09,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1033 transitions. [2023-08-26 10:23:09,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:09,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1033 transitions. [2023-08-26 10:23:09,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 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 10:23:09,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 460.0) internal successors, (3220), 7 states have internal predecessors, (3220), 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 10:23:09,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 460.0) internal successors, (3220), 7 states have internal predecessors, (3220), 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 10:23:09,685 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 80 flow. Second operand 6 states and 1033 transitions. [2023-08-26 10:23:09,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 234 flow [2023-08-26 10:23:09,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 10:23:09,688 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 85 flow [2023-08-26 10:23:09,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2023-08-26 10:23:09,689 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -30 predicate places. [2023-08-26 10:23:09,689 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 85 flow [2023-08-26 10:23:09,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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 10:23:09,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:09,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:23:09,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 10:23:09,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:09,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:09,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1944695619, now seen corresponding path program 1 times [2023-08-26 10:23:09,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:09,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393569507] [2023-08-26 10:23:09,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:09,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:10,081 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 10:23:10,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:10,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393569507] [2023-08-26 10:23:10,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393569507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:23:10,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:23:10,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 10:23:10,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120921386] [2023-08-26 10:23:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:10,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 10:23:10,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:10,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 10:23:10,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 10:23:10,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 460 [2023-08-26 10:23:10,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 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 10:23:10,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:10,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 460 [2023-08-26 10:23:10,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:10,317 INFO L124 PetriNetUnfolderBase]: 551/795 cut-off events. [2023-08-26 10:23:10,318 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-26 10:23:10,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 795 events. 551/795 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3245 event pairs, 293 based on Foata normal form. 0/690 useless extension candidates. Maximal degree in co-relation 1676. Up to 675 conditions per place. [2023-08-26 10:23:10,323 INFO L140 encePairwiseOnDemand]: 455/460 looper letters, 37 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2023-08-26 10:23:10,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 46 transitions, 189 flow [2023-08-26 10:23:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 10:23:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 10:23:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1020 transitions. [2023-08-26 10:23:10,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3695652173913043 [2023-08-26 10:23:10,326 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1020 transitions. [2023-08-26 10:23:10,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1020 transitions. [2023-08-26 10:23:10,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:10,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1020 transitions. [2023-08-26 10:23:10,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 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 10:23:10,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 460.0) internal successors, (3220), 7 states have internal predecessors, (3220), 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 10:23:10,335 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 460.0) internal successors, (3220), 7 states have internal predecessors, (3220), 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 10:23:10,335 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 85 flow. Second operand 6 states and 1020 transitions. [2023-08-26 10:23:10,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 46 transitions, 189 flow [2023-08-26 10:23:10,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 182 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 10:23:10,339 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 84 flow [2023-08-26 10:23:10,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-08-26 10:23:10,341 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -30 predicate places. [2023-08-26 10:23:10,341 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 84 flow [2023-08-26 10:23:10,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 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 10:23:10,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:10,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:23:10,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 10:23:10,342 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:10,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:10,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1645187411, now seen corresponding path program 1 times [2023-08-26 10:23:10,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:10,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624884950] [2023-08-26 10:23:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:10,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:10,492 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 10:23:10,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624884950] [2023-08-26 10:23:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624884950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:23:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:23:10,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 10:23:10,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661062901] [2023-08-26 10:23:10,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:10,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 10:23:10,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:10,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 10:23:10,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 10:23:10,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 460 [2023-08-26 10:23:10,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 197.5) internal successors, (790), 4 states have internal predecessors, (790), 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 10:23:10,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:10,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 460 [2023-08-26 10:23:10,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:10,616 INFO L124 PetriNetUnfolderBase]: 278/529 cut-off events. [2023-08-26 10:23:10,616 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-26 10:23:10,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 529 events. 278/529 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2451 event pairs, 119 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 1005. Up to 285 conditions per place. [2023-08-26 10:23:10,619 INFO L140 encePairwiseOnDemand]: 456/460 looper letters, 29 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2023-08-26 10:23:10,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 170 flow [2023-08-26 10:23:10,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 10:23:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 10:23:10,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 805 transitions. [2023-08-26 10:23:10,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2023-08-26 10:23:10,622 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 805 transitions. [2023-08-26 10:23:10,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 805 transitions. [2023-08-26 10:23:10,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:10,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 805 transitions. [2023-08-26 10:23:10,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 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 10:23:10,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 460.0) internal successors, (2300), 5 states have internal predecessors, (2300), 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 10:23:10,629 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 460.0) internal successors, (2300), 5 states have internal predecessors, (2300), 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 10:23:10,630 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 84 flow. Second operand 4 states and 805 transitions. [2023-08-26 10:23:10,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 170 flow [2023-08-26 10:23:10,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 163 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 10:23:10,631 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 91 flow [2023-08-26 10:23:10,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2023-08-26 10:23:10,634 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -30 predicate places. [2023-08-26 10:23:10,634 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 91 flow [2023-08-26 10:23:10,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 197.5) internal successors, (790), 4 states have internal predecessors, (790), 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 10:23:10,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:10,635 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:23:10,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 10:23:10,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:10,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:10,635 INFO L85 PathProgramCache]: Analyzing trace with hash 479537536, now seen corresponding path program 1 times [2023-08-26 10:23:10,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:10,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179063558] [2023-08-26 10:23:10,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:10,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 10:23:10,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:10,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179063558] [2023-08-26 10:23:10,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179063558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:23:10,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:23:10,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 10:23:10,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601222531] [2023-08-26 10:23:10,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:10,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 10:23:10,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 10:23:10,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 10:23:10,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 460 [2023-08-26 10:23:10,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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 10:23:10,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:10,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 460 [2023-08-26 10:23:10,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:10,960 INFO L124 PetriNetUnfolderBase]: 281/540 cut-off events. [2023-08-26 10:23:10,961 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2023-08-26 10:23:10,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 540 events. 281/540 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2531 event pairs, 183 based on Foata normal form. 1/515 useless extension candidates. Maximal degree in co-relation 1107. Up to 419 conditions per place. [2023-08-26 10:23:10,964 INFO L140 encePairwiseOnDemand]: 457/460 looper letters, 22 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-08-26 10:23:10,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 36 transitions, 141 flow [2023-08-26 10:23:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 10:23:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 10:23:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 549 transitions. [2023-08-26 10:23:10,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3978260869565217 [2023-08-26 10:23:10,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 549 transitions. [2023-08-26 10:23:10,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 549 transitions. [2023-08-26 10:23:10,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:10,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 549 transitions. [2023-08-26 10:23:10,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 10:23:10,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 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 10:23:10,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 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 10:23:10,972 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 91 flow. Second operand 3 states and 549 transitions. [2023-08-26 10:23:10,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 36 transitions, 141 flow [2023-08-26 10:23:10,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 10:23:10,976 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 99 flow [2023-08-26 10:23:10,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-08-26 10:23:10,978 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -29 predicate places. [2023-08-26 10:23:10,979 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 99 flow [2023-08-26 10:23:10,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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 10:23:10,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:10,979 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:23:10,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 10:23:10,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:10,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:10,980 INFO L85 PathProgramCache]: Analyzing trace with hash -934002250, now seen corresponding path program 1 times [2023-08-26 10:23:10,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:10,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603292643] [2023-08-26 10:23:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:10,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:11,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 10:23:11,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:11,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603292643] [2023-08-26 10:23:11,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603292643] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 10:23:11,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837256946] [2023-08-26 10:23:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:11,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 10:23:11,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 10:23:11,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 10:23:11,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 10:23:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:11,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 10:23:11,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 10:23:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 10:23:11,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 10:23:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 10:23:11,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837256946] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-26 10:23:11,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-26 10:23:11,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2023-08-26 10:23:11,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897903071] [2023-08-26 10:23:11,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:11,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 10:23:11,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:11,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 10:23:11,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-26 10:23:11,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 460 [2023-08-26 10:23:11,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 179.2) internal successors, (896), 5 states have internal predecessors, (896), 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 10:23:11,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:11,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 460 [2023-08-26 10:23:11,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:11,535 INFO L124 PetriNetUnfolderBase]: 278/599 cut-off events. [2023-08-26 10:23:11,536 INFO L125 PetriNetUnfolderBase]: For 79/103 co-relation queries the response was YES. [2023-08-26 10:23:11,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 599 events. 278/599 cut-off events. For 79/103 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2983 event pairs, 157 based on Foata normal form. 58/642 useless extension candidates. Maximal degree in co-relation 1164. Up to 332 conditions per place. [2023-08-26 10:23:11,540 INFO L140 encePairwiseOnDemand]: 455/460 looper letters, 31 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2023-08-26 10:23:11,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 47 transitions, 199 flow [2023-08-26 10:23:11,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 10:23:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 10:23:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 909 transitions. [2023-08-26 10:23:11,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39521739130434785 [2023-08-26 10:23:11,546 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 909 transitions. [2023-08-26 10:23:11,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 909 transitions. [2023-08-26 10:23:11,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:11,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 909 transitions. [2023-08-26 10:23:11,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 181.8) internal successors, (909), 5 states have internal predecessors, (909), 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 10:23:11,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 460.0) internal successors, (2760), 6 states have internal predecessors, (2760), 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 10:23:11,552 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 460.0) internal successors, (2760), 6 states have internal predecessors, (2760), 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 10:23:11,552 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 99 flow. Second operand 5 states and 909 transitions. [2023-08-26 10:23:11,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 47 transitions, 199 flow [2023-08-26 10:23:11,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 47 transitions, 195 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 10:23:11,555 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 111 flow [2023-08-26 10:23:11,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-08-26 10:23:11,556 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -25 predicate places. [2023-08-26 10:23:11,556 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 111 flow [2023-08-26 10:23:11,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 179.2) internal successors, (896), 5 states have internal predecessors, (896), 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 10:23:11,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:23:11,556 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:23:11,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 10:23:11,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 10:23:11,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 10:23:11,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:23:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash 278746774, now seen corresponding path program 1 times [2023-08-26 10:23:11,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:23:11,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331825005] [2023-08-26 10:23:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:11,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:23:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 10:23:12,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:23:12,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331825005] [2023-08-26 10:23:12,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331825005] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 10:23:12,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440193964] [2023-08-26 10:23:12,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:23:12,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 10:23:12,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 10:23:12,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 10:23:12,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 10:23:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:23:12,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 33 conjunts are in the unsatisfiable core [2023-08-26 10:23:12,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 10:23:12,486 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 10:23:12,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 10:23:12,525 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2023-08-26 10:23:12,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 10:23:12,600 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2023-08-26 10:23:12,682 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-26 10:23:12,686 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-26 10:23:12,739 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 42 [2023-08-26 10:23:12,745 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 55 [2023-08-26 10:23:12,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 10:23:12,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 10:23:12,934 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 51 [2023-08-26 10:23:12,998 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 10:23:12,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 91 [2023-08-26 10:23:13,031 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 10:23:13,032 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 10:23:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 10:23:13,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440193964] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-26 10:23:13,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-26 10:23:13,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 8] total 15 [2023-08-26 10:23:13,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112667054] [2023-08-26 10:23:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:23:13,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 10:23:13,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:23:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 10:23:13,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2023-08-26 10:23:13,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 460 [2023-08-26 10:23:13,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 111 flow. Second operand has 7 states, 7 states have (on average 161.71428571428572) internal successors, (1132), 7 states have internal predecessors, (1132), 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 10:23:13,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:23:13,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 460 [2023-08-26 10:23:13,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:23:13,418 INFO L124 PetriNetUnfolderBase]: 326/612 cut-off events. [2023-08-26 10:23:13,418 INFO L125 PetriNetUnfolderBase]: For 323/347 co-relation queries the response was YES. [2023-08-26 10:23:13,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 612 events. 326/612 cut-off events. For 323/347 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2773 event pairs, 131 based on Foata normal form. 25/620 useless extension candidates. Maximal degree in co-relation 1473. Up to 295 conditions per place. [2023-08-26 10:23:13,420 INFO L140 encePairwiseOnDemand]: 457/460 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2023-08-26 10:23:13,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 252 flow [2023-08-26 10:23:13,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 10:23:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 10:23:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 673 transitions. [2023-08-26 10:23:13,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3657608695652174 [2023-08-26 10:23:13,422 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 673 transitions. [2023-08-26 10:23:13,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 673 transitions. [2023-08-26 10:23:13,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:23:13,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 673 transitions. [2023-08-26 10:23:13,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 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 10:23:13,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 460.0) internal successors, (2300), 5 states have internal predecessors, (2300), 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 10:23:13,427 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 460.0) internal successors, (2300), 5 states have internal predecessors, (2300), 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 10:23:13,427 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 111 flow. Second operand 4 states and 673 transitions. [2023-08-26 10:23:13,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 252 flow [2023-08-26 10:23:13,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 244 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 10:23:13,429 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-08-26 10:23:13,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-08-26 10:23:13,429 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -26 predicate places. [2023-08-26 10:23:13,429 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-08-26 10:23:13,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 161.71428571428572) internal successors, (1132), 7 states have internal predecessors, (1132), 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 10:23:13,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2023-08-26 10:23:13,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-08-26 10:23:13,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-08-26 10:23:13,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-08-26 10:23:13,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-08-26 10:23:13,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONASSERT (20 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-08-26 10:23:13,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-08-26 10:23:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-08-26 10:23:13,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 10:23:13,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-26 10:23:13,644 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:23:13,648 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 10:23:13,648 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 10:23:13,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:23:13 BasicIcfg [2023-08-26 10:23:13,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 10:23:13,652 INFO L158 Benchmark]: Toolchain (without parser) took 15038.70ms. Allocated memory was 373.3MB in the beginning and 539.0MB in the end (delta: 165.7MB). Free memory was 349.8MB in the beginning and 300.8MB in the end (delta: 49.0MB). Peak memory consumption was 217.1MB. Max. memory is 16.0GB. [2023-08-26 10:23:13,652 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 373.3MB. Free memory is still 349.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 10:23:13,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.54ms. Allocated memory is still 373.3MB. Free memory was 349.3MB in the beginning and 337.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 10:23:13,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.52ms. Allocated memory is still 373.3MB. Free memory was 337.0MB in the beginning and 334.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 10:23:13,653 INFO L158 Benchmark]: Boogie Preprocessor took 47.34ms. Allocated memory is still 373.3MB. Free memory was 334.9MB in the beginning and 332.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 10:23:13,653 INFO L158 Benchmark]: RCFGBuilder took 858.67ms. Allocated memory is still 373.3MB. Free memory was 332.3MB in the beginning and 336.5MB in the end (delta: -4.2MB). Peak memory consumption was 42.1MB. Max. memory is 16.0GB. [2023-08-26 10:23:13,654 INFO L158 Benchmark]: TraceAbstraction took 13776.98ms. Allocated memory was 373.3MB in the beginning and 539.0MB in the end (delta: 165.7MB). Free memory was 336.5MB in the beginning and 300.8MB in the end (delta: 35.7MB). Peak memory consumption was 202.3MB. Max. memory is 16.0GB. [2023-08-26 10:23:13,655 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 373.3MB. Free memory is still 349.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 282.54ms. Allocated memory is still 373.3MB. Free memory was 349.3MB in the beginning and 337.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 65.52ms. Allocated memory is still 373.3MB. Free memory was 337.0MB in the beginning and 334.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.34ms. Allocated memory is still 373.3MB. Free memory was 334.9MB in the beginning and 332.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 858.67ms. Allocated memory is still 373.3MB. Free memory was 332.3MB in the beginning and 336.5MB in the end (delta: -4.2MB). Peak memory consumption was 42.1MB. Max. memory is 16.0GB. * TraceAbstraction took 13776.98ms. Allocated memory was 373.3MB in the beginning and 539.0MB in the end (delta: 165.7MB). Free memory was 336.5MB in the beginning and 300.8MB in the end (delta: 35.7MB). Peak memory consumption was 202.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 223 PlacesBefore, 73 PlacesAfterwards, 223 TransitionsBefore, 68 TransitionsAfterwards, 3404 CoEnabledTransitionPairs, 10 FixpointIterations, 157 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 6 ConcurrentYvCompositions, 5 ChoiceCompositions, 223 TotalNumberOfCompositions, 21945 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6869, independent: 6193, independent conditional: 0, independent unconditional: 6193, dependent: 676, dependent conditional: 0, dependent unconditional: 676, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1672, independent: 1581, independent conditional: 0, independent unconditional: 1581, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6869, independent: 4612, independent conditional: 0, independent unconditional: 4612, dependent: 585, dependent conditional: 0, dependent unconditional: 585, unknown: 1672, unknown conditional: 0, unknown unconditional: 1672] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 109]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 276 locations, 53 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: 13.7s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 495 IncrementalHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 19 mSDtfsCounter, 495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 296 ConstructedInterpolants, 5 QuantifiedInterpolants, 1832 SizeOfPredicates, 29 NumberOfNonLiveVariables, 740 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 15/26 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 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 10:23:13,681 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...