/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 INSUFFICIENT_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 [2023-08-25 17:57:17,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:57:17,330 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 [2023-08-25 17:57:17,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:57:17,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:57:17,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:57:17,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:57:17,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:57:17,356 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:57:17,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:57:17,356 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:57:17,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:57:17,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:57:17,357 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:57:17,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:57:17,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:57:17,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:57:17,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:57:17,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:57:17,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:57:17,360 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:57:17,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:57:17,360 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:57:17,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:57:17,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:57:17,368 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:57:17,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:57:17,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:17,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:57:17,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:57:17,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:57:17,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:57:17,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:57:17,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:57:17,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:57:17,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:57:17,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:57:17,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:57:17,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:57:17,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:57:17,704 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:57:17,705 INFO L431 ainManager$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 [2023-08-25 17:57:18,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:57:19,221 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:57:19,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2023-08-25 17:57:19,234 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1234211ec/d811e249182f4977adbe6e726e192d96/FLAG6486fa25b [2023-08-25 17:57:19,245 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1234211ec/d811e249182f4977adbe6e726e192d96 [2023-08-25 17:57:19,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:57:19,249 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:57:19,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:19,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:57:19,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:57:19,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186fc70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19, skipping insertion in model container [2023-08-25 17:57:19,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,287 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:57:19,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:19,630 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:57:19,662 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 17:57:19,663 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:57:19,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:19,727 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:57:19,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19 WrapperNode [2023-08-25 17:57:19,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:19,730 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:19,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:57:19,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:57:19,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,795 INFO L138 Inliner]: procedures = 162, calls = 41, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 97 [2023-08-25 17:57:19,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:19,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:57:19,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:57:19,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:57:19,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:57:19,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:57:19,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:57:19,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:57:19,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (1/1) ... [2023-08-25 17:57:19,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:19,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:57:19,857 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) [2023-08-25 17:57:19,871 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 [2023-08-25 17:57:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:57:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-25 17:57:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-25 17:57:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:57:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:57:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:57:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:57:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:57:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:57:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:57:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:57:19,900 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:57:20,005 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:57:20,007 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:57:20,214 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:57:20,221 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:57:20,221 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:57:20,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:20 BoogieIcfgContainer [2023-08-25 17:57:20,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:57:20,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:57:20,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:57:20,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:57:20,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:57:19" (1/3) ... [2023-08-25 17:57:20,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55db94b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:20, skipping insertion in model container [2023-08-25 17:57:20,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:19" (2/3) ... [2023-08-25 17:57:20,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55db94b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:20, skipping insertion in model container [2023-08-25 17:57:20,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:20" (3/3) ... [2023-08-25 17:57:20,231 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2023-08-25 17:57:20,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:57:20,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-25 17:57:20,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:57:20,301 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:57:20,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 144 transitions, 296 flow [2023-08-25 17:57:20,446 INFO L124 PetriNetUnfolderBase]: 6/143 cut-off events. [2023-08-25 17:57:20,446 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:57:20,451 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. [2023-08-25 17:57:20,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 144 transitions, 296 flow [2023-08-25 17:57:20,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 136 transitions, 275 flow [2023-08-25 17:57:20,467 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:57:20,474 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 136 transitions, 275 flow [2023-08-25 17:57:20,476 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 136 transitions, 275 flow [2023-08-25 17:57:20,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 136 transitions, 275 flow [2023-08-25 17:57:20,500 INFO L124 PetriNetUnfolderBase]: 6/136 cut-off events. [2023-08-25 17:57:20,501 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:20,501 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. [2023-08-25 17:57:20,504 INFO L119 LiptonReduction]: Number of co-enabled transitions 4488 [2023-08-25 17:57:23,866 INFO L134 LiptonReduction]: Checked pairs total: 20390 [2023-08-25 17:57:23,866 INFO L136 LiptonReduction]: Total number of compositions: 115 [2023-08-25 17:57:23,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:57:23,884 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;@1055321b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:57:23,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-25 17:57:23,887 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:57:23,888 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-08-25 17:57:23,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:23,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:23,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 17:57:23,889 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)] === [2023-08-25 17:57:23,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:23,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1680120628, now seen corresponding path program 1 times [2023-08-25 17:57:23,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:23,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737842243] [2023-08-25 17:57:23,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:23,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:24,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:24,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:24,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737842243] [2023-08-25 17:57:24,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737842243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:24,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:24,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:24,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890829801] [2023-08-25 17:57:24,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:24,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:24,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:24,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:24,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:24,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 259 [2023-08-25 17:57:24,160 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) [2023-08-25 17:57:24,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:24,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 259 [2023-08-25 17:57:24,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:24,371 INFO L124 PetriNetUnfolderBase]: 459/1069 cut-off events. [2023-08-25 17:57:24,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:24,374 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. [2023-08-25 17:57:24,379 INFO L140 encePairwiseOnDemand]: 238/259 looper letters, 61 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2023-08-25 17:57:24,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 75 transitions, 295 flow [2023-08-25 17:57:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:24,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:24,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2023-08-25 17:57:24,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5456885456885456 [2023-08-25 17:57:24,393 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2023-08-25 17:57:24,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2023-08-25 17:57:24,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:24,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2023-08-25 17:57:24,401 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) [2023-08-25 17:57:24,405 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) [2023-08-25 17:57:24,406 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) [2023-08-25 17:57:24,407 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 113 flow. Second operand 3 states and 424 transitions. [2023-08-25 17:57:24,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 75 transitions, 295 flow [2023-08-25 17:57:24,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 75 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:24,412 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 170 flow [2023-08-25 17:57:24,414 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} [2023-08-25 17:57:24,417 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-08-25 17:57:24,417 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 170 flow [2023-08-25 17:57:24,417 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) [2023-08-25 17:57:24,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:24,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:24,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:57:24,418 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)] === [2023-08-25 17:57:24,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash 544132400, now seen corresponding path program 1 times [2023-08-25 17:57:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:24,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821032335] [2023-08-25 17:57:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:24,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:24,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:24,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821032335] [2023-08-25 17:57:24,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821032335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:24,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:24,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:57:24,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463944438] [2023-08-25 17:57:24,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:24,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:24,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:24,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:24,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-25 17:57:24,569 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) [2023-08-25 17:57:24,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:24,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-25 17:57:24,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:24,685 INFO L124 PetriNetUnfolderBase]: 263/761 cut-off events. [2023-08-25 17:57:24,685 INFO L125 PetriNetUnfolderBase]: For 151/153 co-relation queries the response was YES. [2023-08-25 17:57:24,687 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. [2023-08-25 17:57:24,690 INFO L140 encePairwiseOnDemand]: 254/259 looper letters, 47 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2023-08-25 17:57:24,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 72 transitions, 322 flow [2023-08-25 17:57:24,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:24,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-25 17:57:24,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5431145431145431 [2023-08-25 17:57:24,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-25 17:57:24,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-25 17:57:24,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:24,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-25 17:57:24,695 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) [2023-08-25 17:57:24,697 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) [2023-08-25 17:57:24,698 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) [2023-08-25 17:57:24,698 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 170 flow. Second operand 3 states and 422 transitions. [2023-08-25 17:57:24,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 72 transitions, 322 flow [2023-08-25 17:57:24,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 72 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:24,702 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 176 flow [2023-08-25 17:57:24,702 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} [2023-08-25 17:57:24,703 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2023-08-25 17:57:24,703 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 176 flow [2023-08-25 17:57:24,704 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) [2023-08-25 17:57:24,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:24,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:24,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:57:24,704 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)] === [2023-08-25 17:57:24,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:24,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1522564052, now seen corresponding path program 1 times [2023-08-25 17:57:24,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:24,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096232472] [2023-08-25 17:57:24,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:24,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:24,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:24,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096232472] [2023-08-25 17:57:24,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096232472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:24,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:24,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:24,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932051377] [2023-08-25 17:57:24,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:24,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:24,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:24,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:24,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 259 [2023-08-25 17:57:24,735 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) [2023-08-25 17:57:24,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:24,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 259 [2023-08-25 17:57:24,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:24,885 INFO L124 PetriNetUnfolderBase]: 432/1036 cut-off events. [2023-08-25 17:57:24,886 INFO L125 PetriNetUnfolderBase]: For 201/203 co-relation queries the response was YES. [2023-08-25 17:57:24,888 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. [2023-08-25 17:57:24,892 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 69 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2023-08-25 17:57:24,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 80 transitions, 404 flow [2023-08-25 17:57:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:24,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-08-25 17:57:24,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083655083655083 [2023-08-25 17:57:24,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-08-25 17:57:24,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-08-25 17:57:24,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:24,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-08-25 17:57:24,896 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) [2023-08-25 17:57:24,897 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) [2023-08-25 17:57:24,898 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) [2023-08-25 17:57:24,898 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 176 flow. Second operand 3 states and 395 transitions. [2023-08-25 17:57:24,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 80 transitions, 404 flow [2023-08-25 17:57:24,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:24,905 INFO L231 Difference]: Finished difference. Result has 55 places, 61 transitions, 225 flow [2023-08-25 17:57:24,905 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} [2023-08-25 17:57:24,906 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2023-08-25 17:57:24,909 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 61 transitions, 225 flow [2023-08-25 17:57:24,909 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) [2023-08-25 17:57:24,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:24,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:24,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:57:24,910 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)] === [2023-08-25 17:57:24,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:24,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1039677186, now seen corresponding path program 1 times [2023-08-25 17:57:24,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:24,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297629427] [2023-08-25 17:57:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:24,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:25,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:25,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:25,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297629427] [2023-08-25 17:57:25,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297629427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:25,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:25,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:57:25,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744589376] [2023-08-25 17:57:25,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:25,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:25,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:25,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:25,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:25,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-25 17:57:25,032 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) [2023-08-25 17:57:25,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:25,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-25 17:57:25,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:25,148 INFO L124 PetriNetUnfolderBase]: 279/769 cut-off events. [2023-08-25 17:57:25,148 INFO L125 PetriNetUnfolderBase]: For 245/258 co-relation queries the response was YES. [2023-08-25 17:57:25,163 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. [2023-08-25 17:57:25,165 INFO L140 encePairwiseOnDemand]: 254/259 looper letters, 51 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2023-08-25 17:57:25,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 371 flow [2023-08-25 17:57:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:25,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2023-08-25 17:57:25,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5418275418275418 [2023-08-25 17:57:25,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 421 transitions. [2023-08-25 17:57:25,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 421 transitions. [2023-08-25 17:57:25,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:25,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 421 transitions. [2023-08-25 17:57:25,169 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) [2023-08-25 17:57:25,170 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) [2023-08-25 17:57:25,171 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) [2023-08-25 17:57:25,171 INFO L175 Difference]: Start difference. First operand has 55 places, 61 transitions, 225 flow. Second operand 3 states and 421 transitions. [2023-08-25 17:57:25,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 371 flow [2023-08-25 17:57:25,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 76 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:25,173 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 231 flow [2023-08-25 17:57:25,174 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} [2023-08-25 17:57:25,175 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-08-25 17:57:25,175 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 231 flow [2023-08-25 17:57:25,176 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) [2023-08-25 17:57:25,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:25,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:25,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:57:25,177 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)] === [2023-08-25 17:57:25,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:25,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1836546910, now seen corresponding path program 1 times [2023-08-25 17:57:25,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:25,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449175107] [2023-08-25 17:57:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:25,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:25,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:25,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449175107] [2023-08-25 17:57:25,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449175107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:25,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:25,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:57:25,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071957084] [2023-08-25 17:57:25,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:25,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:25,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:25,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:25,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 259 [2023-08-25 17:57:25,261 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) [2023-08-25 17:57:25,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:25,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 259 [2023-08-25 17:57:25,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:25,354 INFO L124 PetriNetUnfolderBase]: 100/356 cut-off events. [2023-08-25 17:57:25,354 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-08-25 17:57:25,355 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. [2023-08-25 17:57:25,356 INFO L140 encePairwiseOnDemand]: 248/259 looper letters, 45 selfloop transitions, 11 changer transitions 9/74 dead transitions. [2023-08-25 17:57:25,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 379 flow [2023-08-25 17:57:25,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-08-25 17:57:25,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5186615186615187 [2023-08-25 17:57:25,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-08-25 17:57:25,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-08-25 17:57:25,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:25,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-08-25 17:57:25,362 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) [2023-08-25 17:57:25,364 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) [2023-08-25 17:57:25,364 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) [2023-08-25 17:57:25,364 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 231 flow. Second operand 3 states and 403 transitions. [2023-08-25 17:57:25,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 379 flow [2023-08-25 17:57:25,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 74 transitions, 337 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-08-25 17:57:25,367 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 174 flow [2023-08-25 17:57:25,367 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} [2023-08-25 17:57:25,368 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-08-25 17:57:25,368 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 174 flow [2023-08-25 17:57:25,368 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) [2023-08-25 17:57:25,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:25,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:25,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:57:25,369 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)] === [2023-08-25 17:57:25,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:25,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1173164139, now seen corresponding path program 1 times [2023-08-25 17:57:25,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:25,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175093189] [2023-08-25 17:57:25,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:25,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:25,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:25,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175093189] [2023-08-25 17:57:25,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175093189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:25,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:25,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:57:25,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982072406] [2023-08-25 17:57:25,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:25,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:25,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:25,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:25,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:25,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-25 17:57:25,439 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) [2023-08-25 17:57:25,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:25,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-25 17:57:25,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:25,502 INFO L124 PetriNetUnfolderBase]: 79/317 cut-off events. [2023-08-25 17:57:25,503 INFO L125 PetriNetUnfolderBase]: For 86/92 co-relation queries the response was YES. [2023-08-25 17:57:25,503 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. [2023-08-25 17:57:25,504 INFO L140 encePairwiseOnDemand]: 256/259 looper letters, 43 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2023-08-25 17:57:25,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 304 flow [2023-08-25 17:57:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2023-08-25 17:57:25,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5328185328185329 [2023-08-25 17:57:25,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2023-08-25 17:57:25,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2023-08-25 17:57:25,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:25,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2023-08-25 17:57:25,508 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) [2023-08-25 17:57:25,510 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) [2023-08-25 17:57:25,511 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) [2023-08-25 17:57:25,511 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 174 flow. Second operand 3 states and 414 transitions. [2023-08-25 17:57:25,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 304 flow [2023-08-25 17:57:25,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:25,514 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 171 flow [2023-08-25 17:57:25,514 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} [2023-08-25 17:57:25,516 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-08-25 17:57:25,516 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 171 flow [2023-08-25 17:57:25,517 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) [2023-08-25 17:57:25,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:25,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:25,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:57:25,517 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)] === [2023-08-25 17:57:25,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash 411554341, now seen corresponding path program 1 times [2023-08-25 17:57:25,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:25,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654809173] [2023-08-25 17:57:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:25,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:25,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:25,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654809173] [2023-08-25 17:57:25,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654809173] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:25,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:25,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:25,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482012320] [2023-08-25 17:57:25,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:25,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:25,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:25,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:25,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:25,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 259 [2023-08-25 17:57:25,551 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) [2023-08-25 17:57:25,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:25,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 259 [2023-08-25 17:57:25,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:25,620 INFO L124 PetriNetUnfolderBase]: 101/338 cut-off events. [2023-08-25 17:57:25,621 INFO L125 PetriNetUnfolderBase]: For 72/81 co-relation queries the response was YES. [2023-08-25 17:57:25,621 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. [2023-08-25 17:57:25,622 INFO L140 encePairwiseOnDemand]: 256/259 looper letters, 37 selfloop transitions, 2 changer transitions 9/51 dead transitions. [2023-08-25 17:57:25,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 271 flow [2023-08-25 17:57:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:25,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-08-25 17:57:25,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47361647361647363 [2023-08-25 17:57:25,625 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-08-25 17:57:25,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-08-25 17:57:25,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:25,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-08-25 17:57:25,626 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) [2023-08-25 17:57:25,627 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) [2023-08-25 17:57:25,628 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) [2023-08-25 17:57:25,628 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 171 flow. Second operand 3 states and 368 transitions. [2023-08-25 17:57:25,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 271 flow [2023-08-25 17:57:25,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 51 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:25,630 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 143 flow [2023-08-25 17:57:25,630 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} [2023-08-25 17:57:25,631 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2023-08-25 17:57:25,631 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 143 flow [2023-08-25 17:57:25,631 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) [2023-08-25 17:57:25,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:25,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:25,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:57:25,634 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)] === [2023-08-25 17:57:25,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1843901957, now seen corresponding path program 1 times [2023-08-25 17:57:25,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:25,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554933935] [2023-08-25 17:57:25,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:25,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:25,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:25,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554933935] [2023-08-25 17:57:25,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554933935] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:25,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:25,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:25,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917665147] [2023-08-25 17:57:25,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:25,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:57:25,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:25,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:57:25,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:57:25,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 259 [2023-08-25 17:57:25,731 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) [2023-08-25 17:57:25,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:25,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 259 [2023-08-25 17:57:25,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:25,793 INFO L124 PetriNetUnfolderBase]: 44/193 cut-off events. [2023-08-25 17:57:25,794 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-08-25 17:57:25,794 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. [2023-08-25 17:57:25,795 INFO L140 encePairwiseOnDemand]: 254/259 looper letters, 42 selfloop transitions, 4 changer transitions 1/58 dead transitions. [2023-08-25 17:57:25,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 287 flow [2023-08-25 17:57:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 543 transitions. [2023-08-25 17:57:25,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241312741312741 [2023-08-25 17:57:25,797 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 543 transitions. [2023-08-25 17:57:25,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 543 transitions. [2023-08-25 17:57:25,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:25,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 543 transitions. [2023-08-25 17:57:25,799 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) [2023-08-25 17:57:25,800 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) [2023-08-25 17:57:25,801 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) [2023-08-25 17:57:25,801 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 143 flow. Second operand 4 states and 543 transitions. [2023-08-25 17:57:25,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 287 flow [2023-08-25 17:57:25,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 280 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 17:57:25,804 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 138 flow [2023-08-25 17:57:25,804 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} [2023-08-25 17:57:25,805 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2023-08-25 17:57:25,806 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 138 flow [2023-08-25 17:57:25,806 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) [2023-08-25 17:57:25,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:25,806 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] [2023-08-25 17:57:25,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:57:25,806 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)] === [2023-08-25 17:57:25,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:25,807 INFO L85 PathProgramCache]: Analyzing trace with hash -257459834, now seen corresponding path program 1 times [2023-08-25 17:57:25,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:25,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113694175] [2023-08-25 17:57:25,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:25,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113694175] [2023-08-25 17:57:25,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113694175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:25,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:25,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:25,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877705551] [2023-08-25 17:57:25,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:25,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:57:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:25,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:57:25,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:57:25,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259 [2023-08-25 17:57:25,945 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) [2023-08-25 17:57:25,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:25,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259 [2023-08-25 17:57:25,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:26,023 INFO L124 PetriNetUnfolderBase]: 43/189 cut-off events. [2023-08-25 17:57:26,024 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-08-25 17:57:26,024 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. [2023-08-25 17:57:26,025 INFO L140 encePairwiseOnDemand]: 251/259 looper letters, 42 selfloop transitions, 7 changer transitions 1/61 dead transitions. [2023-08-25 17:57:26,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 61 transitions, 295 flow [2023-08-25 17:57:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 17:57:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 17:57:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 914 transitions. [2023-08-25 17:57:26,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041367898510756 [2023-08-25 17:57:26,028 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 914 transitions. [2023-08-25 17:57:26,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 914 transitions. [2023-08-25 17:57:26,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:26,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 914 transitions. [2023-08-25 17:57:26,031 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) [2023-08-25 17:57:26,033 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) [2023-08-25 17:57:26,034 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) [2023-08-25 17:57:26,034 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 138 flow. Second operand 7 states and 914 transitions. [2023-08-25 17:57:26,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 61 transitions, 295 flow [2023-08-25 17:57:26,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 61 transitions, 287 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 17:57:26,038 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 146 flow [2023-08-25 17:57:26,038 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} [2023-08-25 17:57:26,038 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2023-08-25 17:57:26,039 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 146 flow [2023-08-25 17:57:26,040 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) [2023-08-25 17:57:26,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:26,041 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] [2023-08-25 17:57:26,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:57:26,041 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)] === [2023-08-25 17:57:26,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash -107833800, now seen corresponding path program 1 times [2023-08-25 17:57:26,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:26,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295333493] [2023-08-25 17:57:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:26,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:26,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:26,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:26,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295333493] [2023-08-25 17:57:26,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295333493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:26,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:26,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:57:26,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245016777] [2023-08-25 17:57:26,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:26,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:57:26,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:26,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:57:26,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:57:26,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 259 [2023-08-25 17:57:26,217 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) [2023-08-25 17:57:26,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:26,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 259 [2023-08-25 17:57:26,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:26,267 INFO L124 PetriNetUnfolderBase]: 26/134 cut-off events. [2023-08-25 17:57:26,267 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-08-25 17:57:26,267 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. [2023-08-25 17:57:26,268 INFO L140 encePairwiseOnDemand]: 255/259 looper letters, 32 selfloop transitions, 5 changer transitions 0/45 dead transitions. [2023-08-25 17:57:26,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 236 flow [2023-08-25 17:57:26,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:26,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 463 transitions. [2023-08-25 17:57:26,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469111969111969 [2023-08-25 17:57:26,270 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 463 transitions. [2023-08-25 17:57:26,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 463 transitions. [2023-08-25 17:57:26,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:26,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 463 transitions. [2023-08-25 17:57:26,272 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) [2023-08-25 17:57:26,274 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) [2023-08-25 17:57:26,274 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) [2023-08-25 17:57:26,274 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 146 flow. Second operand 4 states and 463 transitions. [2023-08-25 17:57:26,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 236 flow [2023-08-25 17:57:26,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 212 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-25 17:57:26,276 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 129 flow [2023-08-25 17:57:26,277 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} [2023-08-25 17:57:26,277 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -10 predicate places. [2023-08-25 17:57:26,277 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 129 flow [2023-08-25 17:57:26,278 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) [2023-08-25 17:57:26,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:26,278 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] [2023-08-25 17:57:26,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:57:26,278 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)] === [2023-08-25 17:57:26,279 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:26,279 INFO L85 PathProgramCache]: Analyzing trace with hash 823599852, now seen corresponding path program 1 times [2023-08-25 17:57:26,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:26,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802066269] [2023-08-25 17:57:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:26,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:26,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802066269] [2023-08-25 17:57:26,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802066269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:26,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:26,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:26,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82371139] [2023-08-25 17:57:26,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:26,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:57:26,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:26,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:57:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:57:26,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259 [2023-08-25 17:57:26,422 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) [2023-08-25 17:57:26,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:26,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259 [2023-08-25 17:57:26,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:26,494 INFO L124 PetriNetUnfolderBase]: 23/130 cut-off events. [2023-08-25 17:57:26,495 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-25 17:57:26,495 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. [2023-08-25 17:57:26,496 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 35 selfloop transitions, 5 changer transitions 2/53 dead transitions. [2023-08-25 17:57:26,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 254 flow [2023-08-25 17:57:26,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 17:57:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 17:57:26,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 907 transitions. [2023-08-25 17:57:26,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5002757859900717 [2023-08-25 17:57:26,499 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 907 transitions. [2023-08-25 17:57:26,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 907 transitions. [2023-08-25 17:57:26,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:26,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 907 transitions. [2023-08-25 17:57:26,502 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) [2023-08-25 17:57:26,505 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) [2023-08-25 17:57:26,506 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) [2023-08-25 17:57:26,506 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 129 flow. Second operand 7 states and 907 transitions. [2023-08-25 17:57:26,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 254 flow [2023-08-25 17:57:26,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:26,507 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 131 flow [2023-08-25 17:57:26,508 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} [2023-08-25 17:57:26,508 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2023-08-25 17:57:26,508 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 131 flow [2023-08-25 17:57:26,509 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) [2023-08-25 17:57:26,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:26,509 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] [2023-08-25 17:57:26,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:57:26,509 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)] === [2023-08-25 17:57:26,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:26,510 INFO L85 PathProgramCache]: Analyzing trace with hash -211377066, now seen corresponding path program 1 times [2023-08-25 17:57:26,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:26,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063109623] [2023-08-25 17:57:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:26,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:26,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:26,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063109623] [2023-08-25 17:57:26,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063109623] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:26,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:26,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:57:26,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092546397] [2023-08-25 17:57:26,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:26,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:57:26,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:26,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:57:26,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:57:26,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259 [2023-08-25 17:57:26,650 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) [2023-08-25 17:57:26,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:26,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259 [2023-08-25 17:57:26,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:26,723 INFO L124 PetriNetUnfolderBase]: 23/128 cut-off events. [2023-08-25 17:57:26,723 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-25 17:57:26,723 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. [2023-08-25 17:57:26,724 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-08-25 17:57:26,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 214 flow [2023-08-25 17:57:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:57:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:57:26,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 774 transitions. [2023-08-25 17:57:26,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4980694980694981 [2023-08-25 17:57:26,727 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 774 transitions. [2023-08-25 17:57:26,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 774 transitions. [2023-08-25 17:57:26,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:26,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 774 transitions. [2023-08-25 17:57:26,730 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) [2023-08-25 17:57:26,732 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) [2023-08-25 17:57:26,733 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) [2023-08-25 17:57:26,733 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 131 flow. Second operand 6 states and 774 transitions. [2023-08-25 17:57:26,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 214 flow [2023-08-25 17:57:26,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 205 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 17:57:26,734 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-25 17:57:26,734 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} [2023-08-25 17:57:26,735 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -8 predicate places. [2023-08-25 17:57:26,735 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-25 17:57:26,735 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) [2023-08-25 17:57:26,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-25 17:57:26,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-25 17:57:26,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-25 17:57:26,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-25 17:57:26,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2023-08-25 17:57:26,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-25 17:57:26,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-25 17:57:26,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (8 of 16 remaining) [2023-08-25 17:57:26,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-25 17:57:26,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (6 of 16 remaining) [2023-08-25 17:57:26,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2023-08-25 17:57:26,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-08-25 17:57:26,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-25 17:57:26,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-25 17:57:26,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2023-08-25 17:57:26,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-08-25 17:57:26,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 17:57:26,740 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:26,744 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:57:26,744 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:57:26,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:57:26 BasicIcfg [2023-08-25 17:57:26,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:57:26,747 INFO L158 Benchmark]: Toolchain (without parser) took 7498.63ms. Allocated memory was 346.0MB in the beginning and 528.5MB in the end (delta: 182.5MB). Free memory was 321.2MB in the beginning and 419.9MB in the end (delta: -98.7MB). Peak memory consumption was 86.7MB. Max. memory is 16.0GB. [2023-08-25 17:57:26,747 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 346.0MB. Free memory was 323.3MB in the beginning and 323.2MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:57:26,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.00ms. Allocated memory is still 346.0MB. Free memory was 321.1MB in the beginning and 301.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 17:57:26,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.63ms. Allocated memory is still 346.0MB. Free memory was 301.5MB in the beginning and 299.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:57:26,748 INFO L158 Benchmark]: Boogie Preprocessor took 28.72ms. Allocated memory is still 346.0MB. Free memory was 299.1MB in the beginning and 297.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:57:26,748 INFO L158 Benchmark]: RCFGBuilder took 398.02ms. Allocated memory is still 346.0MB. Free memory was 297.7MB in the beginning and 281.3MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 17:57:26,749 INFO L158 Benchmark]: TraceAbstraction took 6521.52ms. Allocated memory was 346.0MB in the beginning and 528.5MB in the end (delta: 182.5MB). Free memory was 280.6MB in the beginning and 419.9MB in the end (delta: -139.4MB). Peak memory consumption was 44.8MB. Max. memory is 16.0GB. [2023-08-25 17:57:26,750 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 346.0MB. Free memory was 323.3MB in the beginning and 323.2MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 480.00ms. Allocated memory is still 346.0MB. Free memory was 321.1MB in the beginning and 301.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.63ms. Allocated memory is still 346.0MB. Free memory was 301.5MB in the beginning and 299.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.72ms. Allocated memory is still 346.0MB. Free memory was 299.1MB in the beginning and 297.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 398.02ms. Allocated memory is still 346.0MB. Free memory was 297.7MB in the beginning and 281.3MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 6521.52ms. Allocated memory was 346.0MB in the beginning and 528.5MB in the end (delta: 182.5MB). Free memory was 280.6MB in the beginning and 419.9MB in the end (delta: -139.4MB). Peak memory consumption was 44.8MB. 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: 3.4s, 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: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.5s 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, 1.1s 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! [2023-08-25 17:57:26,769 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...