/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:36:37,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:36:37,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 07:36:37,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:36:37,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:36:37,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:36:37,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:36:37,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:36:37,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:36:37,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:36:37,589 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:36:37,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:36:37,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:36:37,591 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:36:37,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:36:37,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:36:37,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:36:37,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:36:37,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:36:37,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:36:37,592 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:36:37,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:36:37,593 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:36:37,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:36:37,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:36:37,594 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:36:37,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:36:37,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:36:37,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:36:37,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:36:37,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:36:37,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:36:37,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:36:37,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:36:37,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:36:37,597 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:36:37,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:36:37,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:36:37,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:36:37,900 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:36:37,900 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:36:37,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2023-08-26 07:36:38,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:36:39,277 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:36:39,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2023-08-26 07:36:39,291 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2cfa3eb3/fbe0fde9a2734d66a99971fe095a069e/FLAGd8d90bfa1 [2023-08-26 07:36:39,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2cfa3eb3/fbe0fde9a2734d66a99971fe095a069e [2023-08-26 07:36:39,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:36:39,309 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:36:39,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:36:39,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:36:39,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:36:39,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f27c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39, skipping insertion in model container [2023-08-26 07:36:39,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,367 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:36:39,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:36:39,693 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:36:39,722 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-26 07:36:39,724 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 07:36:39,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:36:39,781 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:36:39,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39 WrapperNode [2023-08-26 07:36:39,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:36:39,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:36:39,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:36:39,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:36:39,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,830 INFO L138 Inliner]: procedures = 162, calls = 41, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 97 [2023-08-26 07:36:39,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:36:39,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:36:39,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:36:39,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:36:39,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,855 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:36:39,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:36:39,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:36:39,856 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:36:39,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (1/1) ... [2023-08-26 07:36:39,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:36:39,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:36:39,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 07:36:39,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 07:36:39,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:36:39,918 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-26 07:36:39,918 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-26 07:36:39,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:36:39,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:36:39,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:36:39,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:36:39,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:36:39,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:36:39,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:36:39,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:36:39,921 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:36:40,050 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:36:40,051 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:36:40,306 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:36:40,312 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:36:40,312 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:36:40,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:36:40 BoogieIcfgContainer [2023-08-26 07:36:40,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:36:40,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:36:40,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:36:40,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:36:40,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:36:39" (1/3) ... [2023-08-26 07:36:40,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4981959e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:36:40, skipping insertion in model container [2023-08-26 07:36:40,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:39" (2/3) ... [2023-08-26 07:36:40,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4981959e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:36:40, skipping insertion in model container [2023-08-26 07:36:40,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:36:40" (3/3) ... [2023-08-26 07:36:40,337 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2023-08-26 07:36:40,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:36:40,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-26 07:36:40,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:36:40,441 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 07:36:40,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 144 transitions, 296 flow [2023-08-26 07:36:40,592 INFO L124 PetriNetUnfolderBase]: 6/143 cut-off events. [2023-08-26 07:36:40,592 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 07:36:40,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 143 events. 6/143 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 161 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-08-26 07:36:40,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 144 transitions, 296 flow [2023-08-26 07:36:40,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 136 transitions, 275 flow [2023-08-26 07:36:40,611 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:36:40,623 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 136 transitions, 275 flow [2023-08-26 07:36:40,626 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 136 transitions, 275 flow [2023-08-26 07:36:40,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 136 transitions, 275 flow [2023-08-26 07:36:40,677 INFO L124 PetriNetUnfolderBase]: 6/136 cut-off events. [2023-08-26 07:36:40,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:36:40,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 136 events. 6/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 161 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-08-26 07:36:40,682 INFO L119 LiptonReduction]: Number of co-enabled transitions 4488 [2023-08-26 07:36:44,176 INFO L134 LiptonReduction]: Checked pairs total: 20390 [2023-08-26 07:36:44,176 INFO L136 LiptonReduction]: Total number of compositions: 115 [2023-08-26 07:36:44,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:36:44,192 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;@56d7e946, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:36:44,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 07:36:44,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:36:44,195 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-08-26 07:36:44,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:36:44,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:44,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 07:36:44,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:44,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1680120628, now seen corresponding path program 1 times [2023-08-26 07:36:44,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:44,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251607206] [2023-08-26 07:36:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:44,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:44,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:44,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:44,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251607206] [2023-08-26 07:36:44,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251607206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:44,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:44,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:44,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251941230] [2023-08-26 07:36:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:44,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:44,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:44,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:44,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:44,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 259 [2023-08-26 07:36:44,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:44,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:44,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 259 [2023-08-26 07:36:44,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:44,724 INFO L124 PetriNetUnfolderBase]: 459/1069 cut-off events. [2023-08-26 07:36:44,724 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:36:44,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 1069 events. 459/1069 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5965 event pairs, 140 based on Foata normal form. 50/886 useless extension candidates. Maximal degree in co-relation 2059. Up to 655 conditions per place. [2023-08-26 07:36:44,735 INFO L140 encePairwiseOnDemand]: 238/259 looper letters, 61 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2023-08-26 07:36:44,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 75 transitions, 295 flow [2023-08-26 07:36:44,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:44,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2023-08-26 07:36:44,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5456885456885456 [2023-08-26 07:36:44,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2023-08-26 07:36:44,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2023-08-26 07:36:44,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:44,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2023-08-26 07:36:44,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:44,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:44,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:44,762 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 113 flow. Second operand 3 states and 424 transitions. [2023-08-26 07:36:44,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 75 transitions, 295 flow [2023-08-26 07:36:44,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 75 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:36:44,767 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 170 flow [2023-08-26 07:36:44,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=52, PETRI_TRANSITIONS=53} [2023-08-26 07:36:44,772 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-08-26 07:36:44,772 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 170 flow [2023-08-26 07:36:44,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:44,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:44,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:44,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:36:44,773 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:44,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:44,774 INFO L85 PathProgramCache]: Analyzing trace with hash 544132400, now seen corresponding path program 1 times [2023-08-26 07:36:44,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:44,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997236749] [2023-08-26 07:36:44,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:44,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:44,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:44,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997236749] [2023-08-26 07:36:44,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997236749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:44,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:44,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 07:36:44,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654544203] [2023-08-26 07:36:44,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:44,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:44,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:44,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:44,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:44,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-26 07:36:44,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 53 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:44,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:44,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-26 07:36:44,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:45,063 INFO L124 PetriNetUnfolderBase]: 263/761 cut-off events. [2023-08-26 07:36:45,063 INFO L125 PetriNetUnfolderBase]: For 151/153 co-relation queries the response was YES. [2023-08-26 07:36:45,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1581 conditions, 761 events. 263/761 cut-off events. For 151/153 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4469 event pairs, 178 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 1571. Up to 387 conditions per place. [2023-08-26 07:36:45,067 INFO L140 encePairwiseOnDemand]: 254/259 looper letters, 47 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2023-08-26 07:36:45,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 72 transitions, 322 flow [2023-08-26 07:36:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:45,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-26 07:36:45,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5431145431145431 [2023-08-26 07:36:45,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-26 07:36:45,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-26 07:36:45,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:45,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-26 07:36:45,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,075 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 170 flow. Second operand 3 states and 422 transitions. [2023-08-26 07:36:45,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 72 transitions, 322 flow [2023-08-26 07:36:45,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 72 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:45,079 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 176 flow [2023-08-26 07:36:45,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-08-26 07:36:45,080 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2023-08-26 07:36:45,081 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 176 flow [2023-08-26 07:36:45,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:45,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:45,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:36:45,082 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:45,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:45,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1522564052, now seen corresponding path program 1 times [2023-08-26 07:36:45,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:45,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816494680] [2023-08-26 07:36:45,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:45,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:45,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:45,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816494680] [2023-08-26 07:36:45,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816494680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:45,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:45,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:45,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498501624] [2023-08-26 07:36:45,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:45,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:45,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:45,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:45,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 259 [2023-08-26 07:36:45,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:45,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 259 [2023-08-26 07:36:45,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:45,288 INFO L124 PetriNetUnfolderBase]: 432/1036 cut-off events. [2023-08-26 07:36:45,288 INFO L125 PetriNetUnfolderBase]: For 201/203 co-relation queries the response was YES. [2023-08-26 07:36:45,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 1036 events. 432/1036 cut-off events. For 201/203 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5698 event pairs, 320 based on Foata normal form. 2/875 useless extension candidates. Maximal degree in co-relation 2372. Up to 903 conditions per place. [2023-08-26 07:36:45,293 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 69 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2023-08-26 07:36:45,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 80 transitions, 404 flow [2023-08-26 07:36:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-08-26 07:36:45,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083655083655083 [2023-08-26 07:36:45,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-08-26 07:36:45,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-08-26 07:36:45,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:45,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-08-26 07:36:45,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,299 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 176 flow. Second operand 3 states and 395 transitions. [2023-08-26 07:36:45,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 80 transitions, 404 flow [2023-08-26 07:36:45,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:45,305 INFO L231 Difference]: Finished difference. Result has 55 places, 61 transitions, 225 flow [2023-08-26 07:36:45,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=55, PETRI_TRANSITIONS=61} [2023-08-26 07:36:45,306 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2023-08-26 07:36:45,309 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 61 transitions, 225 flow [2023-08-26 07:36:45,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:45,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:45,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:36:45,310 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:45,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1039677186, now seen corresponding path program 1 times [2023-08-26 07:36:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:45,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117750942] [2023-08-26 07:36:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:45,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:45,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:45,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117750942] [2023-08-26 07:36:45,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117750942] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:45,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:45,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 07:36:45,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928856724] [2023-08-26 07:36:45,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:45,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:45,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:45,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:45,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:45,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-26 07:36:45,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 61 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:45,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-26 07:36:45,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:45,552 INFO L124 PetriNetUnfolderBase]: 279/769 cut-off events. [2023-08-26 07:36:45,552 INFO L125 PetriNetUnfolderBase]: For 245/258 co-relation queries the response was YES. [2023-08-26 07:36:45,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1749 conditions, 769 events. 279/769 cut-off events. For 245/258 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4475 event pairs, 139 based on Foata normal form. 4/682 useless extension candidates. Maximal degree in co-relation 1736. Up to 468 conditions per place. [2023-08-26 07:36:45,556 INFO L140 encePairwiseOnDemand]: 254/259 looper letters, 51 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2023-08-26 07:36:45,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 371 flow [2023-08-26 07:36:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:45,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2023-08-26 07:36:45,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5418275418275418 [2023-08-26 07:36:45,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 421 transitions. [2023-08-26 07:36:45,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 421 transitions. [2023-08-26 07:36:45,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:45,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 421 transitions. [2023-08-26 07:36:45,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,562 INFO L175 Difference]: Start difference. First operand has 55 places, 61 transitions, 225 flow. Second operand 3 states and 421 transitions. [2023-08-26 07:36:45,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 371 flow [2023-08-26 07:36:45,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 76 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:36:45,566 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 231 flow [2023-08-26 07:36:45,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2023-08-26 07:36:45,567 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-08-26 07:36:45,567 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 231 flow [2023-08-26 07:36:45,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:45,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:45,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:36:45,568 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:45,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:45,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1836546910, now seen corresponding path program 1 times [2023-08-26 07:36:45,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:45,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701694258] [2023-08-26 07:36:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:45,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:45,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:45,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701694258] [2023-08-26 07:36:45,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701694258] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:45,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:45,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:36:45,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705466293] [2023-08-26 07:36:45,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:45,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:45,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:45,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:45,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:45,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 259 [2023-08-26 07:36:45,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:45,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 259 [2023-08-26 07:36:45,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:45,747 INFO L124 PetriNetUnfolderBase]: 100/356 cut-off events. [2023-08-26 07:36:45,749 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-08-26 07:36:45,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 356 events. 100/356 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1551 event pairs, 23 based on Foata normal form. 40/380 useless extension candidates. Maximal degree in co-relation 810. Up to 155 conditions per place. [2023-08-26 07:36:45,751 INFO L140 encePairwiseOnDemand]: 248/259 looper letters, 45 selfloop transitions, 11 changer transitions 9/74 dead transitions. [2023-08-26 07:36:45,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 379 flow [2023-08-26 07:36:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:45,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:45,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-08-26 07:36:45,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5186615186615187 [2023-08-26 07:36:45,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-08-26 07:36:45,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-08-26 07:36:45,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:45,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-08-26 07:36:45,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,757 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 231 flow. Second operand 3 states and 403 transitions. [2023-08-26 07:36:45,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 379 flow [2023-08-26 07:36:45,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 74 transitions, 337 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-08-26 07:36:45,760 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 174 flow [2023-08-26 07:36:45,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2023-08-26 07:36:45,760 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-08-26 07:36:45,761 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 174 flow [2023-08-26 07:36:45,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:45,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:45,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:36:45,761 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:45,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1173164139, now seen corresponding path program 1 times [2023-08-26 07:36:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:45,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573665009] [2023-08-26 07:36:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:45,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:45,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:45,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573665009] [2023-08-26 07:36:45,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573665009] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:45,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:45,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 07:36:45,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132752102] [2023-08-26 07:36:45,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:45,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:45,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:45,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:45,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:45,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-26 07:36:45,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:45,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-26 07:36:45,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:45,875 INFO L124 PetriNetUnfolderBase]: 79/317 cut-off events. [2023-08-26 07:36:45,876 INFO L125 PetriNetUnfolderBase]: For 86/92 co-relation queries the response was YES. [2023-08-26 07:36:45,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 317 events. 79/317 cut-off events. For 86/92 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1372 event pairs, 36 based on Foata normal form. 6/316 useless extension candidates. Maximal degree in co-relation 784. Up to 171 conditions per place. [2023-08-26 07:36:45,877 INFO L140 encePairwiseOnDemand]: 256/259 looper letters, 43 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2023-08-26 07:36:45,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 304 flow [2023-08-26 07:36:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2023-08-26 07:36:45,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5328185328185329 [2023-08-26 07:36:45,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2023-08-26 07:36:45,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2023-08-26 07:36:45,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:45,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2023-08-26 07:36:45,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,883 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 174 flow. Second operand 3 states and 414 transitions. [2023-08-26 07:36:45,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 304 flow [2023-08-26 07:36:45,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:36:45,885 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 171 flow [2023-08-26 07:36:45,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2023-08-26 07:36:45,886 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-08-26 07:36:45,886 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 171 flow [2023-08-26 07:36:45,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:45,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:45,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:36:45,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:45,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 411554341, now seen corresponding path program 1 times [2023-08-26 07:36:45,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:45,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415622241] [2023-08-26 07:36:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:45,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:45,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:45,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415622241] [2023-08-26 07:36:45,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415622241] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:45,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:45,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:45,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656532716] [2023-08-26 07:36:45,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:45,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:45,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:45,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:45,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:45,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 259 [2023-08-26 07:36:45,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:45,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 259 [2023-08-26 07:36:45,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:45,975 INFO L124 PetriNetUnfolderBase]: 101/338 cut-off events. [2023-08-26 07:36:45,975 INFO L125 PetriNetUnfolderBase]: For 72/81 co-relation queries the response was YES. [2023-08-26 07:36:45,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 338 events. 101/338 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1376 event pairs, 72 based on Foata normal form. 9/346 useless extension candidates. Maximal degree in co-relation 866. Up to 292 conditions per place. [2023-08-26 07:36:45,977 INFO L140 encePairwiseOnDemand]: 256/259 looper letters, 37 selfloop transitions, 2 changer transitions 9/51 dead transitions. [2023-08-26 07:36:45,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 271 flow [2023-08-26 07:36:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:45,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-08-26 07:36:45,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47361647361647363 [2023-08-26 07:36:45,979 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-08-26 07:36:45,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-08-26 07:36:45,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:45,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-08-26 07:36:45,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,982 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 171 flow. Second operand 3 states and 368 transitions. [2023-08-26 07:36:45,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 271 flow [2023-08-26 07:36:45,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 51 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:45,983 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 143 flow [2023-08-26 07:36:45,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-08-26 07:36:45,984 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2023-08-26 07:36:45,984 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 143 flow [2023-08-26 07:36:45,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:45,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:45,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:45,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:36:45,985 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:45,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1843901957, now seen corresponding path program 1 times [2023-08-26 07:36:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:45,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638340480] [2023-08-26 07:36:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:46,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:46,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638340480] [2023-08-26 07:36:46,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638340480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:46,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:46,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:46,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917220127] [2023-08-26 07:36:46,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:46,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 07:36:46,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:46,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 07:36:46,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 07:36:46,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-26 07:36:46,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:46,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-26 07:36:46,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:46,111 INFO L124 PetriNetUnfolderBase]: 44/193 cut-off events. [2023-08-26 07:36:46,111 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-08-26 07:36:46,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 193 events. 44/193 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 618 event pairs, 21 based on Foata normal form. 1/192 useless extension candidates. Maximal degree in co-relation 446. Up to 58 conditions per place. [2023-08-26 07:36:46,112 INFO L140 encePairwiseOnDemand]: 254/259 looper letters, 42 selfloop transitions, 4 changer transitions 1/58 dead transitions. [2023-08-26 07:36:46,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 287 flow [2023-08-26 07:36:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:36:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:36:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 543 transitions. [2023-08-26 07:36:46,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241312741312741 [2023-08-26 07:36:46,114 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 543 transitions. [2023-08-26 07:36:46,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 543 transitions. [2023-08-26 07:36:46,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:46,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 543 transitions. [2023-08-26 07:36:46,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.75) internal successors, (543), 4 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,117 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,118 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 143 flow. Second operand 4 states and 543 transitions. [2023-08-26 07:36:46,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 287 flow [2023-08-26 07:36:46,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 280 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 07:36:46,119 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 138 flow [2023-08-26 07:36:46,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-26 07:36:46,120 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2023-08-26 07:36:46,120 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 138 flow [2023-08-26 07:36:46,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:46,121 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] [2023-08-26 07:36:46,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:36:46,121 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:46,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash -257459834, now seen corresponding path program 1 times [2023-08-26 07:36:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:46,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714117894] [2023-08-26 07:36:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:46,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:46,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:46,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714117894] [2023-08-26 07:36:46,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714117894] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:46,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:46,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:36:46,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729319284] [2023-08-26 07:36:46,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:46,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:36:46,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:46,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:36:46,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:36:46,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259 [2023-08-26 07:36:46,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:46,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259 [2023-08-26 07:36:46,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:46,285 INFO L124 PetriNetUnfolderBase]: 43/189 cut-off events. [2023-08-26 07:36:46,285 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-08-26 07:36:46,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 189 events. 43/189 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 597 event pairs, 19 based on Foata normal form. 2/190 useless extension candidates. Maximal degree in co-relation 431. Up to 44 conditions per place. [2023-08-26 07:36:46,286 INFO L140 encePairwiseOnDemand]: 251/259 looper letters, 42 selfloop transitions, 7 changer transitions 1/61 dead transitions. [2023-08-26 07:36:46,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 61 transitions, 295 flow [2023-08-26 07:36:46,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 07:36:46,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 07:36:46,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 914 transitions. [2023-08-26 07:36:46,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041367898510756 [2023-08-26 07:36:46,289 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 914 transitions. [2023-08-26 07:36:46,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 914 transitions. [2023-08-26 07:36:46,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:46,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 914 transitions. [2023-08-26 07:36:46,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 130.57142857142858) internal successors, (914), 7 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,294 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,294 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 138 flow. Second operand 7 states and 914 transitions. [2023-08-26 07:36:46,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 61 transitions, 295 flow [2023-08-26 07:36:46,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 61 transitions, 287 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 07:36:46,296 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 146 flow [2023-08-26 07:36:46,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=146, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2023-08-26 07:36:46,297 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2023-08-26 07:36:46,297 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 146 flow [2023-08-26 07:36:46,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:46,298 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] [2023-08-26 07:36:46,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:36:46,298 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:46,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:46,299 INFO L85 PathProgramCache]: Analyzing trace with hash -107833800, now seen corresponding path program 1 times [2023-08-26 07:36:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:46,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150733874] [2023-08-26 07:36:46,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:46,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:46,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:46,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150733874] [2023-08-26 07:36:46,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150733874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:46,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:46,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:36:46,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476649141] [2023-08-26 07:36:46,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:46,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 07:36:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:46,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 07:36:46,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 07:36:46,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 259 [2023-08-26 07:36:46,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:46,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 259 [2023-08-26 07:36:46,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:46,510 INFO L124 PetriNetUnfolderBase]: 26/134 cut-off events. [2023-08-26 07:36:46,510 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-08-26 07:36:46,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 134 events. 26/134 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 346 event pairs, 1 based on Foata normal form. 18/152 useless extension candidates. Maximal degree in co-relation 321. Up to 79 conditions per place. [2023-08-26 07:36:46,511 INFO L140 encePairwiseOnDemand]: 255/259 looper letters, 32 selfloop transitions, 5 changer transitions 0/45 dead transitions. [2023-08-26 07:36:46,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 236 flow [2023-08-26 07:36:46,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:36:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:36:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 463 transitions. [2023-08-26 07:36:46,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469111969111969 [2023-08-26 07:36:46,513 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 463 transitions. [2023-08-26 07:36:46,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 463 transitions. [2023-08-26 07:36:46,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:46,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 463 transitions. [2023-08-26 07:36:46,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,516 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,516 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 146 flow. Second operand 4 states and 463 transitions. [2023-08-26 07:36:46,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 236 flow [2023-08-26 07:36:46,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 212 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-26 07:36:46,518 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 129 flow [2023-08-26 07:36:46,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-26 07:36:46,518 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -10 predicate places. [2023-08-26 07:36:46,518 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 129 flow [2023-08-26 07:36:46,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:46,519 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] [2023-08-26 07:36:46,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 07:36:46,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:46,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash 823599852, now seen corresponding path program 1 times [2023-08-26 07:36:46,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:46,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351890434] [2023-08-26 07:36:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:46,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:46,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:46,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351890434] [2023-08-26 07:36:46,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351890434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:46,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:46,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:36:46,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646925299] [2023-08-26 07:36:46,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:46,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:36:46,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:46,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:36:46,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:36:46,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259 [2023-08-26 07:36:46,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 129 flow. Second operand has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:46,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259 [2023-08-26 07:36:46,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:46,694 INFO L124 PetriNetUnfolderBase]: 23/130 cut-off events. [2023-08-26 07:36:46,694 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 07:36:46,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 130 events. 23/130 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 332 event pairs, 12 based on Foata normal form. 3/132 useless extension candidates. Maximal degree in co-relation 296. Up to 32 conditions per place. [2023-08-26 07:36:46,695 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 35 selfloop transitions, 5 changer transitions 2/53 dead transitions. [2023-08-26 07:36:46,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 254 flow [2023-08-26 07:36:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 07:36:46,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 07:36:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 907 transitions. [2023-08-26 07:36:46,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5002757859900717 [2023-08-26 07:36:46,697 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 907 transitions. [2023-08-26 07:36:46,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 907 transitions. [2023-08-26 07:36:46,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:46,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 907 transitions. [2023-08-26 07:36:46,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.57142857142858) internal successors, (907), 7 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,703 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,703 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 129 flow. Second operand 7 states and 907 transitions. [2023-08-26 07:36:46,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 254 flow [2023-08-26 07:36:46,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:46,704 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 131 flow [2023-08-26 07:36:46,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=131, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-08-26 07:36:46,705 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2023-08-26 07:36:46,705 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 131 flow [2023-08-26 07:36:46,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:46,706 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, 1, 1, 1] [2023-08-26 07:36:46,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 07:36:46,706 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 07:36:46,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:46,706 INFO L85 PathProgramCache]: Analyzing trace with hash -211377066, now seen corresponding path program 1 times [2023-08-26 07:36:46,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:46,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490901378] [2023-08-26 07:36:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:46,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:46,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:46,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490901378] [2023-08-26 07:36:46,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490901378] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:46,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:46,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:36:46,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260481443] [2023-08-26 07:36:46,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:46,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:36:46,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:46,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:36:46,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:36:46,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259 [2023-08-26 07:36:46,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:46,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259 [2023-08-26 07:36:46,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:46,888 INFO L124 PetriNetUnfolderBase]: 23/128 cut-off events. [2023-08-26 07:36:46,889 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-26 07:36:46,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 128 events. 23/128 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 329 event pairs, 14 based on Foata normal form. 1/128 useless extension candidates. Maximal degree in co-relation 295. Up to 62 conditions per place. [2023-08-26 07:36:46,889 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-08-26 07:36:46,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 214 flow [2023-08-26 07:36:46,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:36:46,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:36:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 774 transitions. [2023-08-26 07:36:46,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4980694980694981 [2023-08-26 07:36:46,891 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 774 transitions. [2023-08-26 07:36:46,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 774 transitions. [2023-08-26 07:36:46,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:46,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 774 transitions. [2023-08-26 07:36:46,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,896 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,896 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 131 flow. Second operand 6 states and 774 transitions. [2023-08-26 07:36:46,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 214 flow [2023-08-26 07:36:46,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 205 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 07:36:46,897 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-26 07:36:46,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, 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=6, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-26 07:36:46,898 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -8 predicate places. [2023-08-26 07:36:46,898 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-26 07:36:46,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:46,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-26 07:36:46,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-26 07:36:46,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-26 07:36:46,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-26 07:36:46,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2023-08-26 07:36:46,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-26 07:36:46,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-26 07:36:46,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (8 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (6 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2023-08-26 07:36:46,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-08-26 07:36:46,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 07:36:46,903 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:46,907 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:36:46,907 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:36:46,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:36:46 BasicIcfg [2023-08-26 07:36:46,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:36:46,910 INFO L158 Benchmark]: Toolchain (without parser) took 7600.90ms. Allocated memory was 360.7MB in the beginning and 478.2MB in the end (delta: 117.4MB). Free memory was 336.0MB in the beginning and 316.9MB in the end (delta: 19.1MB). Peak memory consumption was 136.9MB. Max. memory is 16.0GB. [2023-08-26 07:36:46,910 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 360.7MB. Free memory is still 337.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:36:46,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.64ms. Allocated memory is still 360.7MB. Free memory was 335.7MB in the beginning and 316.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:36:46,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.11ms. Allocated memory is still 360.7MB. Free memory was 316.1MB in the beginning and 314.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:36:46,911 INFO L158 Benchmark]: Boogie Preprocessor took 23.43ms. Allocated memory is still 360.7MB. Free memory was 314.0MB in the beginning and 312.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:36:46,911 INFO L158 Benchmark]: RCFGBuilder took 459.19ms. Allocated memory is still 360.7MB. Free memory was 312.3MB in the beginning and 295.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 07:36:46,911 INFO L158 Benchmark]: TraceAbstraction took 6593.24ms. Allocated memory was 360.7MB in the beginning and 478.2MB in the end (delta: 117.4MB). Free memory was 294.8MB in the beginning and 316.9MB in the end (delta: -22.1MB). Peak memory consumption was 97.1MB. Max. memory is 16.0GB. [2023-08-26 07:36:46,912 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 360.7MB. Free memory is still 337.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 470.64ms. Allocated memory is still 360.7MB. Free memory was 335.7MB in the beginning and 316.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.11ms. Allocated memory is still 360.7MB. Free memory was 316.1MB in the beginning and 314.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.43ms. Allocated memory is still 360.7MB. Free memory was 314.0MB in the beginning and 312.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 459.19ms. Allocated memory is still 360.7MB. Free memory was 312.3MB in the beginning and 295.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6593.24ms. Allocated memory was 360.7MB in the beginning and 478.2MB in the end (delta: 117.4MB). Free memory was 294.8MB in the beginning and 316.9MB in the end (delta: -22.1MB). Peak memory consumption was 97.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 134 PlacesBefore, 54 PlacesAfterwards, 136 TransitionsBefore, 55 TransitionsAfterwards, 4488 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 20390 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5025, independent: 4396, independent conditional: 0, independent unconditional: 4396, dependent: 629, dependent conditional: 0, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2278, independent: 2197, independent conditional: 0, independent unconditional: 2197, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5025, independent: 2199, independent conditional: 0, independent unconditional: 2199, dependent: 548, dependent conditional: 0, dependent unconditional: 548, unknown: 2278, unknown conditional: 0, unknown unconditional: 2278] , Statistics on independence cache: Total cache size (in pairs): 240, Positive cache size: 193, Positive conditional cache size: 0, Positive unconditional cache size: 193, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 175 locations, 16 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: 6.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 802 IncrementalHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 29 mSDtfsCounter, 802 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=4, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:36:46,925 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...