/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:17:14,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:17:14,503 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 03:17:14,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:17:14,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:17:14,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:17:14,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:17:14,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:17:14,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:17:14,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:17:14,554 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:17:14,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:17:14,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:17:14,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:17:14,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:17:14,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:17:14,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:17:14,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:17:14,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:17:14,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:17:14,557 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:17:14,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:17:14,558 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:17:14,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:17:14,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:17:14,559 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:17:14,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:17:14,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:17:14,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:17:14,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:17:14,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:17:14,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:17:14,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:17:14,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:17:14,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:17:14,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:17:14,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:17:14,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:17:14,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:17:14,894 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:17:14,896 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:17:14,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-08-25 03:17:16,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:17:16,492 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:17:16,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-08-25 03:17:16,516 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16ecdfb7/9ce7ba01ad9845d2a9b8c7ea15d85cad/FLAG5f061c0d0 [2023-08-25 03:17:16,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16ecdfb7/9ce7ba01ad9845d2a9b8c7ea15d85cad [2023-08-25 03:17:16,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:17:16,530 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:17:16,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:17:16,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:17:16,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:17:16,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:17:16" (1/1) ... [2023-08-25 03:17:16,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e22f8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:16, skipping insertion in model container [2023-08-25 03:17:16,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:17:16" (1/1) ... [2023-08-25 03:17:16,584 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:17:17,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:17:17,032 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:17:17,047 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:17:17,048 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:17:17,057 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 03:17:17,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:17:17,133 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:17:17,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17 WrapperNode [2023-08-25 03:17:17,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:17:17,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:17:17,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:17:17,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:17:17,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,208 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-08-25 03:17:17,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:17:17,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:17:17,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:17:17,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:17:17,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:17:17,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:17:17,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:17:17,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:17:17,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (1/1) ... [2023-08-25 03:17:17,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:17:17,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:17,285 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 03:17:17,310 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 03:17:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:17:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:17:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:17:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:17:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:17:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:17:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:17:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:17:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:17:17,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:17:17,329 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 03:17:17,494 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:17:17,497 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:17:17,680 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:17:17,687 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:17:17,687 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 03:17:17,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:17:17 BoogieIcfgContainer [2023-08-25 03:17:17,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:17:17,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:17:17,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:17:17,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:17:17,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:17:16" (1/3) ... [2023-08-25 03:17:17,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7226fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:17:17, skipping insertion in model container [2023-08-25 03:17:17,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:17" (2/3) ... [2023-08-25 03:17:17,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7226fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:17:17, skipping insertion in model container [2023-08-25 03:17:17,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:17:17" (3/3) ... [2023-08-25 03:17:17,696 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2023-08-25 03:17:17,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:17:17,723 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:17:17,723 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:17:17,774 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:17:17,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 101 transitions, 207 flow [2023-08-25 03:17:17,836 INFO L124 PetriNetUnfolderBase]: 6/100 cut-off events. [2023-08-25 03:17:17,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:17,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 6/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-08-25 03:17:17,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 101 transitions, 207 flow [2023-08-25 03:17:17,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 100 transitions, 203 flow [2023-08-25 03:17:17,852 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:17:17,859 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 100 transitions, 203 flow [2023-08-25 03:17:17,861 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 100 transitions, 203 flow [2023-08-25 03:17:17,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 100 transitions, 203 flow [2023-08-25 03:17:17,884 INFO L124 PetriNetUnfolderBase]: 6/100 cut-off events. [2023-08-25 03:17:17,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:17,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 6/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-08-25 03:17:17,887 INFO L119 LiptonReduction]: Number of co-enabled transitions 2960 [2023-08-25 03:17:19,264 INFO L134 LiptonReduction]: Checked pairs total: 7963 [2023-08-25 03:17:19,265 INFO L136 LiptonReduction]: Total number of compositions: 63 [2023-08-25 03:17:19,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:17:19,300 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;@1518f5f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:17:19,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 03:17:19,313 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:17:19,313 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2023-08-25 03:17:19,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:19,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:19,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:19,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:19,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 94368560, now seen corresponding path program 1 times [2023-08-25 03:17:19,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:19,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744445542] [2023-08-25 03:17:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:19,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:19,565 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 03:17:19,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:19,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744445542] [2023-08-25 03:17:19,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744445542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:19,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:19,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:17:19,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565445993] [2023-08-25 03:17:19,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:19,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:17:19,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:19,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:17:19,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:17:19,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 164 [2023-08-25 03:17:19,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 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 03:17:19,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:19,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 164 [2023-08-25 03:17:19,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:19,674 INFO L124 PetriNetUnfolderBase]: 66/251 cut-off events. [2023-08-25 03:17:19,674 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:19,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 251 events. 66/251 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1089 event pairs, 49 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 374. Up to 133 conditions per place. [2023-08-25 03:17:19,677 INFO L140 encePairwiseOnDemand]: 161/164 looper letters, 19 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2023-08-25 03:17:19,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 127 flow [2023-08-25 03:17:19,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:17:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:17:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2023-08-25 03:17:19,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873983739837398 [2023-08-25 03:17:19,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2023-08-25 03:17:19,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2023-08-25 03:17:19,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:19,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2023-08-25 03:17:19,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 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 03:17:19,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 03:17:19,701 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 03:17:19,702 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 83 flow. Second operand 3 states and 289 transitions. [2023-08-25 03:17:19,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 127 flow [2023-08-25 03:17:19,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 41 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:19,706 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 94 flow [2023-08-25 03:17:19,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-25 03:17:19,711 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-08-25 03:17:19,712 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 94 flow [2023-08-25 03:17:19,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 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 03:17:19,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:19,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:19,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:17:19,713 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:19,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:19,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1160896221, now seen corresponding path program 1 times [2023-08-25 03:17:19,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:19,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150760593] [2023-08-25 03:17:19,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:19,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:19,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150760593] [2023-08-25 03:17:19,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150760593] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:19,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742792279] [2023-08-25 03:17:19,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:19,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:19,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:19,852 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:19,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 03:17:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:19,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 03:17:19,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:19,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:17:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:19,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742792279] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:17:19,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:17:19,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-25 03:17:19,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883717395] [2023-08-25 03:17:19,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:17:19,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 03:17:19,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:19,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 03:17:19,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-25 03:17:19,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 164 [2023-08-25 03:17:19,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 94 flow. Second operand has 7 states, 7 states have (on average 90.71428571428571) internal successors, (635), 7 states have internal predecessors, (635), 0 states have call successors, (0), 0 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 03:17:19,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:19,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 164 [2023-08-25 03:17:19,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:20,070 INFO L124 PetriNetUnfolderBase]: 66/254 cut-off events. [2023-08-25 03:17:20,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:20,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 254 events. 66/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1089 event pairs, 49 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 393. Up to 133 conditions per place. [2023-08-25 03:17:20,072 INFO L140 encePairwiseOnDemand]: 161/164 looper letters, 19 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-08-25 03:17:20,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 154 flow [2023-08-25 03:17:20,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:20,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2023-08-25 03:17:20,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5701219512195121 [2023-08-25 03:17:20,093 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 561 transitions. [2023-08-25 03:17:20,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 561 transitions. [2023-08-25 03:17:20,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:20,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 561 transitions. [2023-08-25 03:17:20,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:17:20,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:20,102 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:20,102 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 94 flow. Second operand 6 states and 561 transitions. [2023-08-25 03:17:20,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 154 flow [2023-08-25 03:17:20,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:20,107 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 126 flow [2023-08-25 03:17:20,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2023-08-25 03:17:20,113 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2023-08-25 03:17:20,114 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 126 flow [2023-08-25 03:17:20,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.71428571428571) internal successors, (635), 7 states have internal predecessors, (635), 0 states have call successors, (0), 0 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 03:17:20,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:20,117 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:20,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 03:17:20,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:20,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:20,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:20,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1125665873, now seen corresponding path program 2 times [2023-08-25 03:17:20,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:20,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689069201] [2023-08-25 03:17:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:20,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:20,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:20,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689069201] [2023-08-25 03:17:20,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689069201] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:20,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654370890] [2023-08-25 03:17:20,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:17:20,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:20,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:20,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:20,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 03:17:20,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:17:20,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:17:20,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2023-08-25 03:17:20,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:20,690 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:17:20,717 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:17:20,761 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:17:20,761 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:17:20,807 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:17:20,808 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:17:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 03:17:20,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:17:20,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654370890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:20,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 03:17:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2023-08-25 03:17:20,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446355062] [2023-08-25 03:17:20,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:20,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:17:20,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:20,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:17:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-08-25 03:17:20,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 164 [2023-08-25 03:17:20,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 126 flow. Second operand has 9 states, 9 states have (on average 58.333333333333336) internal successors, (525), 9 states have internal predecessors, (525), 0 states have call successors, (0), 0 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 03:17:20,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:20,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 164 [2023-08-25 03:17:20,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:21,384 INFO L124 PetriNetUnfolderBase]: 751/1506 cut-off events. [2023-08-25 03:17:21,384 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 03:17:21,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3039 conditions, 1506 events. 751/1506 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6889 event pairs, 302 based on Foata normal form. 0/1273 useless extension candidates. Maximal degree in co-relation 3006. Up to 656 conditions per place. [2023-08-25 03:17:21,394 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 167 selfloop transitions, 27 changer transitions 0/194 dead transitions. [2023-08-25 03:17:21,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 194 transitions, 814 flow [2023-08-25 03:17:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 03:17:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 03:17:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 762 transitions. [2023-08-25 03:17:21,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46463414634146344 [2023-08-25 03:17:21,397 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 762 transitions. [2023-08-25 03:17:21,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 762 transitions. [2023-08-25 03:17:21,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:21,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 762 transitions. [2023-08-25 03:17:21,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.2) internal successors, (762), 10 states have internal predecessors, (762), 0 states have call successors, (0), 0 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 03:17:21,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 164.0) internal successors, (1804), 11 states have internal predecessors, (1804), 0 states have call successors, (0), 0 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 03:17:21,404 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 164.0) internal successors, (1804), 11 states have internal predecessors, (1804), 0 states have call successors, (0), 0 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 03:17:21,404 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 126 flow. Second operand 10 states and 762 transitions. [2023-08-25 03:17:21,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 194 transitions, 814 flow [2023-08-25 03:17:21,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 194 transitions, 800 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:21,409 INFO L231 Difference]: Finished difference. Result has 64 places, 69 transitions, 316 flow [2023-08-25 03:17:21,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=316, PETRI_PLACES=64, PETRI_TRANSITIONS=69} [2023-08-25 03:17:21,411 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 23 predicate places. [2023-08-25 03:17:21,411 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 69 transitions, 316 flow [2023-08-25 03:17:21,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 58.333333333333336) internal successors, (525), 9 states have internal predecessors, (525), 0 states have call successors, (0), 0 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 03:17:21,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:21,412 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:21,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:21,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-25 03:17:21,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:21,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:21,618 INFO L85 PathProgramCache]: Analyzing trace with hash -379523024, now seen corresponding path program 1 times [2023-08-25 03:17:21,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:21,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955082017] [2023-08-25 03:17:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:21,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:21,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955082017] [2023-08-25 03:17:21,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955082017] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:21,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635591984] [2023-08-25 03:17:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:21,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:21,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:21,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 03:17:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:21,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 03:17:21,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:21,812 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:21,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:17:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:21,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635591984] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:17:21,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:17:21,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-25 03:17:21,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46882270] [2023-08-25 03:17:21,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:17:21,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 03:17:21,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 03:17:21,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-25 03:17:21,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 164 [2023-08-25 03:17:21,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 69 transitions, 316 flow. Second operand has 13 states, 13 states have (on average 90.38461538461539) internal successors, (1175), 13 states have internal predecessors, (1175), 0 states have call successors, (0), 0 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 03:17:21,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:21,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 164 [2023-08-25 03:17:21,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:22,017 INFO L124 PetriNetUnfolderBase]: 222/720 cut-off events. [2023-08-25 03:17:22,017 INFO L125 PetriNetUnfolderBase]: For 532/538 co-relation queries the response was YES. [2023-08-25 03:17:22,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1823 conditions, 720 events. 222/720 cut-off events. For 532/538 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3630 event pairs, 135 based on Foata normal form. 7/684 useless extension candidates. Maximal degree in co-relation 1765. Up to 364 conditions per place. [2023-08-25 03:17:22,024 INFO L140 encePairwiseOnDemand]: 161/164 looper letters, 27 selfloop transitions, 11 changer transitions 0/75 dead transitions. [2023-08-25 03:17:22,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 428 flow [2023-08-25 03:17:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 03:17:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 03:17:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1104 transitions. [2023-08-25 03:17:22,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5609756097560976 [2023-08-25 03:17:22,031 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1104 transitions. [2023-08-25 03:17:22,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1104 transitions. [2023-08-25 03:17:22,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:22,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1104 transitions. [2023-08-25 03:17:22,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 0 states have call successors, (0), 0 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 03:17:22,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 164.0) internal successors, (2132), 13 states have internal predecessors, (2132), 0 states have call successors, (0), 0 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 03:17:22,037 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 164.0) internal successors, (2132), 13 states have internal predecessors, (2132), 0 states have call successors, (0), 0 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 03:17:22,037 INFO L175 Difference]: Start difference. First operand has 64 places, 69 transitions, 316 flow. Second operand 12 states and 1104 transitions. [2023-08-25 03:17:22,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 428 flow [2023-08-25 03:17:22,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 427 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:22,045 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 399 flow [2023-08-25 03:17:22,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=399, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2023-08-25 03:17:22,046 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 39 predicate places. [2023-08-25 03:17:22,046 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 399 flow [2023-08-25 03:17:22,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 90.38461538461539) internal successors, (1175), 13 states have internal predecessors, (1175), 0 states have call successors, (0), 0 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 03:17:22,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:22,047 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:22,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:22,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:22,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:22,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash -833471568, now seen corresponding path program 2 times [2023-08-25 03:17:22,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:22,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429736844] [2023-08-25 03:17:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:22,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:22,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:22,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429736844] [2023-08-25 03:17:22,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429736844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:22,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:22,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:22,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365316663] [2023-08-25 03:17:22,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:22,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:22,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:22,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:22,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:22,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 164 [2023-08-25 03:17:22,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 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 03:17:22,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:22,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 164 [2023-08-25 03:17:22,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:22,975 INFO L124 PetriNetUnfolderBase]: 884/1778 cut-off events. [2023-08-25 03:17:22,975 INFO L125 PetriNetUnfolderBase]: For 1654/1654 co-relation queries the response was YES. [2023-08-25 03:17:22,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5036 conditions, 1778 events. 884/1778 cut-off events. For 1654/1654 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8777 event pairs, 352 based on Foata normal form. 0/1621 useless extension candidates. Maximal degree in co-relation 4954. Up to 1304 conditions per place. [2023-08-25 03:17:22,989 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 159 selfloop transitions, 30 changer transitions 0/189 dead transitions. [2023-08-25 03:17:22,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 189 transitions, 1237 flow [2023-08-25 03:17:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 521 transitions. [2023-08-25 03:17:22,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294715447154471 [2023-08-25 03:17:22,991 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 521 transitions. [2023-08-25 03:17:22,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 521 transitions. [2023-08-25 03:17:22,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:22,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 521 transitions. [2023-08-25 03:17:22,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 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 03:17:22,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:22,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:22,995 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 399 flow. Second operand 6 states and 521 transitions. [2023-08-25 03:17:22,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 189 transitions, 1237 flow [2023-08-25 03:17:23,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 189 transitions, 1189 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-25 03:17:23,004 INFO L231 Difference]: Finished difference. Result has 85 places, 100 transitions, 575 flow [2023-08-25 03:17:23,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=575, PETRI_PLACES=85, PETRI_TRANSITIONS=100} [2023-08-25 03:17:23,006 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 44 predicate places. [2023-08-25 03:17:23,006 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 100 transitions, 575 flow [2023-08-25 03:17:23,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 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 03:17:23,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:23,007 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:23,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:17:23,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:23,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:23,008 INFO L85 PathProgramCache]: Analyzing trace with hash -931623043, now seen corresponding path program 1 times [2023-08-25 03:17:23,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738787243] [2023-08-25 03:17:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:23,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:23,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:23,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738787243] [2023-08-25 03:17:23,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738787243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:23,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:23,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:23,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113918575] [2023-08-25 03:17:23,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:23,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:23,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:23,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:23,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:23,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 164 [2023-08-25 03:17:23,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 100 transitions, 575 flow. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 03:17:23,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:23,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 164 [2023-08-25 03:17:23,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:23,853 INFO L124 PetriNetUnfolderBase]: 1048/2106 cut-off events. [2023-08-25 03:17:23,854 INFO L125 PetriNetUnfolderBase]: For 2872/2872 co-relation queries the response was YES. [2023-08-25 03:17:23,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7104 conditions, 2106 events. 1048/2106 cut-off events. For 2872/2872 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10776 event pairs, 378 based on Foata normal form. 0/1968 useless extension candidates. Maximal degree in co-relation 7042. Up to 1744 conditions per place. [2023-08-25 03:17:23,872 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 146 selfloop transitions, 57 changer transitions 4/207 dead transitions. [2023-08-25 03:17:23,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 207 transitions, 1467 flow [2023-08-25 03:17:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 508 transitions. [2023-08-25 03:17:23,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.516260162601626 [2023-08-25 03:17:23,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 508 transitions. [2023-08-25 03:17:23,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 508 transitions. [2023-08-25 03:17:23,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:23,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 508 transitions. [2023-08-25 03:17:23,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 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 03:17:23,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:23,878 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:23,878 INFO L175 Difference]: Start difference. First operand has 85 places, 100 transitions, 575 flow. Second operand 6 states and 508 transitions. [2023-08-25 03:17:23,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 207 transitions, 1467 flow [2023-08-25 03:17:23,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 207 transitions, 1467 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:23,887 INFO L231 Difference]: Finished difference. Result has 95 places, 151 transitions, 1109 flow [2023-08-25 03:17:23,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1109, PETRI_PLACES=95, PETRI_TRANSITIONS=151} [2023-08-25 03:17:23,888 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 54 predicate places. [2023-08-25 03:17:23,889 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 151 transitions, 1109 flow [2023-08-25 03:17:23,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 03:17:23,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:23,889 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:23,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:17:23,890 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:23,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:23,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1117479944, now seen corresponding path program 1 times [2023-08-25 03:17:23,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:23,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27018830] [2023-08-25 03:17:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:23,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:24,212 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:24,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:24,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27018830] [2023-08-25 03:17:24,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27018830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:24,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:24,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:24,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514612801] [2023-08-25 03:17:24,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:24,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:24,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:24,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:24,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:24,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 164 [2023-08-25 03:17:24,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 151 transitions, 1109 flow. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 03:17:24,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:24,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 164 [2023-08-25 03:17:24,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:24,764 INFO L124 PetriNetUnfolderBase]: 1242/2494 cut-off events. [2023-08-25 03:17:24,765 INFO L125 PetriNetUnfolderBase]: For 6000/6000 co-relation queries the response was YES. [2023-08-25 03:17:24,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9876 conditions, 2494 events. 1242/2494 cut-off events. For 6000/6000 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 13186 event pairs, 365 based on Foata normal form. 0/2386 useless extension candidates. Maximal degree in co-relation 9809. Up to 2077 conditions per place. [2023-08-25 03:17:24,787 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 179 selfloop transitions, 72 changer transitions 0/251 dead transitions. [2023-08-25 03:17:24,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 251 transitions, 2262 flow [2023-08-25 03:17:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 508 transitions. [2023-08-25 03:17:24,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.516260162601626 [2023-08-25 03:17:24,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 508 transitions. [2023-08-25 03:17:24,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 508 transitions. [2023-08-25 03:17:24,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:24,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 508 transitions. [2023-08-25 03:17:24,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 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 03:17:24,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:24,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:24,793 INFO L175 Difference]: Start difference. First operand has 95 places, 151 transitions, 1109 flow. Second operand 6 states and 508 transitions. [2023-08-25 03:17:24,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 251 transitions, 2262 flow [2023-08-25 03:17:24,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 251 transitions, 2162 flow, removed 50 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:24,812 INFO L231 Difference]: Finished difference. Result has 105 places, 205 transitions, 1836 flow [2023-08-25 03:17:24,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1836, PETRI_PLACES=105, PETRI_TRANSITIONS=205} [2023-08-25 03:17:24,812 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 64 predicate places. [2023-08-25 03:17:24,813 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 205 transitions, 1836 flow [2023-08-25 03:17:24,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 03:17:24,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:24,813 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:24,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:17:24,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:24,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:24,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1986599482, now seen corresponding path program 1 times [2023-08-25 03:17:24,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:24,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682477463] [2023-08-25 03:17:24,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:24,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 03:17:25,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:25,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682477463] [2023-08-25 03:17:25,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682477463] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:25,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142759418] [2023-08-25 03:17:25,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:25,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:25,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:25,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:25,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 03:17:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:25,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-25 03:17:25,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:25,453 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-25 03:17:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:25,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:17:25,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142759418] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:25,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 03:17:25,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-25 03:17:25,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140460988] [2023-08-25 03:17:25,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:25,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:25,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:25,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:25,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-25 03:17:25,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 164 [2023-08-25 03:17:25,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 205 transitions, 1836 flow. Second operand has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:25,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:25,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 164 [2023-08-25 03:17:25,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:26,122 INFO L124 PetriNetUnfolderBase]: 1659/3971 cut-off events. [2023-08-25 03:17:26,123 INFO L125 PetriNetUnfolderBase]: For 14840/15028 co-relation queries the response was YES. [2023-08-25 03:17:26,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16682 conditions, 3971 events. 1659/3971 cut-off events. For 14840/15028 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 26829 event pairs, 218 based on Foata normal form. 12/3898 useless extension candidates. Maximal degree in co-relation 16610. Up to 903 conditions per place. [2023-08-25 03:17:26,172 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 111 selfloop transitions, 12 changer transitions 0/276 dead transitions. [2023-08-25 03:17:26,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 276 transitions, 2815 flow [2023-08-25 03:17:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2023-08-25 03:17:26,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5142276422764228 [2023-08-25 03:17:26,174 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2023-08-25 03:17:26,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2023-08-25 03:17:26,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:26,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2023-08-25 03:17:26,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 0 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 03:17:26,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:26,177 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:26,177 INFO L175 Difference]: Start difference. First operand has 105 places, 205 transitions, 1836 flow. Second operand 6 states and 506 transitions. [2023-08-25 03:17:26,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 276 transitions, 2815 flow [2023-08-25 03:17:26,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 276 transitions, 2485 flow, removed 165 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:26,309 INFO L231 Difference]: Finished difference. Result has 113 places, 215 transitions, 1753 flow [2023-08-25 03:17:26,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1634, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1753, PETRI_PLACES=113, PETRI_TRANSITIONS=215} [2023-08-25 03:17:26,310 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 72 predicate places. [2023-08-25 03:17:26,310 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 215 transitions, 1753 flow [2023-08-25 03:17:26,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:26,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:26,310 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:26,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:26,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:26,517 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:26,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:26,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1546935944, now seen corresponding path program 2 times [2023-08-25 03:17:26,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:26,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663219781] [2023-08-25 03:17:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:26,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 03:17:27,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:27,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663219781] [2023-08-25 03:17:27,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663219781] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:27,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465287257] [2023-08-25 03:17:27,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:17:27,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:27,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:27,134 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:27,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 03:17:27,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:17:27,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:17:27,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-25 03:17:27,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:27,272 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-25 03:17:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:27,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:17:27,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465287257] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:27,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 03:17:27,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-25 03:17:27,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830028107] [2023-08-25 03:17:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:27,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:27,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:27,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:27,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-25 03:17:27,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 164 [2023-08-25 03:17:27,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 215 transitions, 1753 flow. Second operand has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:27,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:27,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 164 [2023-08-25 03:17:27,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:28,140 INFO L124 PetriNetUnfolderBase]: 1968/4673 cut-off events. [2023-08-25 03:17:28,141 INFO L125 PetriNetUnfolderBase]: For 15918/16086 co-relation queries the response was YES. [2023-08-25 03:17:28,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19846 conditions, 4673 events. 1968/4673 cut-off events. For 15918/16086 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 32950 event pairs, 220 based on Foata normal form. 6/4634 useless extension candidates. Maximal degree in co-relation 19769. Up to 1128 conditions per place. [2023-08-25 03:17:28,207 INFO L140 encePairwiseOnDemand]: 157/164 looper letters, 107 selfloop transitions, 19 changer transitions 0/279 dead transitions. [2023-08-25 03:17:28,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 279 transitions, 2558 flow [2023-08-25 03:17:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-08-25 03:17:28,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5111788617886179 [2023-08-25 03:17:28,209 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-08-25 03:17:28,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-08-25 03:17:28,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:28,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-08-25 03:17:28,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:17:28,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:28,213 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:28,213 INFO L175 Difference]: Start difference. First operand has 113 places, 215 transitions, 1753 flow. Second operand 6 states and 503 transitions. [2023-08-25 03:17:28,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 279 transitions, 2558 flow [2023-08-25 03:17:28,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 279 transitions, 2557 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:28,263 INFO L231 Difference]: Finished difference. Result has 119 places, 224 transitions, 1894 flow [2023-08-25 03:17:28,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1752, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1894, PETRI_PLACES=119, PETRI_TRANSITIONS=224} [2023-08-25 03:17:28,264 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 78 predicate places. [2023-08-25 03:17:28,264 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 224 transitions, 1894 flow [2023-08-25 03:17:28,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:28,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:28,265 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:28,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:28,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:28,471 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:28,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:28,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1241870667, now seen corresponding path program 1 times [2023-08-25 03:17:28,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:28,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971168102] [2023-08-25 03:17:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 03:17:28,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971168102] [2023-08-25 03:17:28,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971168102] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607335143] [2023-08-25 03:17:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:28,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:28,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:28,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:28,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 03:17:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:29,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-25 03:17:29,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:29,131 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-25 03:17:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:29,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:17:29,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607335143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:29,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 03:17:29,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-25 03:17:29,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425793378] [2023-08-25 03:17:29,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:29,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:29,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:29,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 03:17:29,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 164 [2023-08-25 03:17:29,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 224 transitions, 1894 flow. Second operand has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:29,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:29,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 164 [2023-08-25 03:17:29,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:29,847 INFO L124 PetriNetUnfolderBase]: 1665/4015 cut-off events. [2023-08-25 03:17:29,847 INFO L125 PetriNetUnfolderBase]: For 15046/15197 co-relation queries the response was YES. [2023-08-25 03:17:29,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17546 conditions, 4015 events. 1665/4015 cut-off events. For 15046/15197 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 27643 event pairs, 196 based on Foata normal form. 11/3986 useless extension candidates. Maximal degree in co-relation 17466. Up to 962 conditions per place. [2023-08-25 03:17:29,894 INFO L140 encePairwiseOnDemand]: 157/164 looper letters, 109 selfloop transitions, 22 changer transitions 0/284 dead transitions. [2023-08-25 03:17:29,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 284 transitions, 2687 flow [2023-08-25 03:17:29,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 03:17:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 03:17:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 586 transitions. [2023-08-25 03:17:29,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5104529616724739 [2023-08-25 03:17:29,896 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 586 transitions. [2023-08-25 03:17:29,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 586 transitions. [2023-08-25 03:17:29,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:29,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 586 transitions. [2023-08-25 03:17:29,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.71428571428571) internal successors, (586), 7 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:17:29,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 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 03:17:29,900 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 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 03:17:29,900 INFO L175 Difference]: Start difference. First operand has 119 places, 224 transitions, 1894 flow. Second operand 7 states and 586 transitions. [2023-08-25 03:17:29,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 284 transitions, 2687 flow [2023-08-25 03:17:29,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 284 transitions, 2673 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 03:17:29,947 INFO L231 Difference]: Finished difference. Result has 126 places, 227 transitions, 1984 flow [2023-08-25 03:17:29,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1859, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1984, PETRI_PLACES=126, PETRI_TRANSITIONS=227} [2023-08-25 03:17:29,948 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 85 predicate places. [2023-08-25 03:17:29,948 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 227 transitions, 1984 flow [2023-08-25 03:17:29,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:29,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:29,948 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:29,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:30,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:30,155 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:30,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:30,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1503292769, now seen corresponding path program 2 times [2023-08-25 03:17:30,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:30,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3898824] [2023-08-25 03:17:30,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:30,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 03:17:30,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3898824] [2023-08-25 03:17:30,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3898824] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131685953] [2023-08-25 03:17:30,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:17:30,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:30,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:30,589 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:30,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 03:17:30,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:17:30,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:17:30,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-25 03:17:30,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:30,740 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-25 03:17:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:30,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:17:30,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131685953] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:30,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 03:17:30,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-25 03:17:30,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140535920] [2023-08-25 03:17:30,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:30,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:30,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:30,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:30,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-25 03:17:30,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 164 [2023-08-25 03:17:30,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 227 transitions, 1984 flow. Second operand has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:30,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:30,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 164 [2023-08-25 03:17:30,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:31,420 INFO L124 PetriNetUnfolderBase]: 1610/3917 cut-off events. [2023-08-25 03:17:31,421 INFO L125 PetriNetUnfolderBase]: For 15333/15534 co-relation queries the response was YES. [2023-08-25 03:17:31,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17131 conditions, 3917 events. 1610/3917 cut-off events. For 15333/15534 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 27728 event pairs, 207 based on Foata normal form. 7/3868 useless extension candidates. Maximal degree in co-relation 17048. Up to 1115 conditions per place. [2023-08-25 03:17:31,474 INFO L140 encePairwiseOnDemand]: 157/164 looper letters, 109 selfloop transitions, 17 changer transitions 1/280 dead transitions. [2023-08-25 03:17:31,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 280 transitions, 2670 flow [2023-08-25 03:17:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-08-25 03:17:31,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5111788617886179 [2023-08-25 03:17:31,476 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-08-25 03:17:31,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-08-25 03:17:31,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:31,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-08-25 03:17:31,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:17:31,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:31,480 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:31,480 INFO L175 Difference]: Start difference. First operand has 126 places, 227 transitions, 1984 flow. Second operand 6 states and 503 transitions. [2023-08-25 03:17:31,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 280 transitions, 2670 flow [2023-08-25 03:17:31,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 280 transitions, 2630 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-25 03:17:31,530 INFO L231 Difference]: Finished difference. Result has 130 places, 230 transitions, 2028 flow [2023-08-25 03:17:31,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2028, PETRI_PLACES=130, PETRI_TRANSITIONS=230} [2023-08-25 03:17:31,530 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 89 predicate places. [2023-08-25 03:17:31,531 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 230 transitions, 2028 flow [2023-08-25 03:17:31,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 03:17:31,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:31,531 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:31,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:31,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:31,742 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:31,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:31,742 INFO L85 PathProgramCache]: Analyzing trace with hash 405057055, now seen corresponding path program 1 times [2023-08-25 03:17:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:31,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983031166] [2023-08-25 03:17:31,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:31,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-08-25 03:17:32,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:32,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983031166] [2023-08-25 03:17:32,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983031166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:32,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:32,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:32,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433596189] [2023-08-25 03:17:32,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:32,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:32,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:32,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:32,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:32,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 164 [2023-08-25 03:17:32,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 230 transitions, 2028 flow. Second operand has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 0 states have call successors, (0), 0 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 03:17:32,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:32,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 164 [2023-08-25 03:17:32,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:33,204 INFO L124 PetriNetUnfolderBase]: 2850/5788 cut-off events. [2023-08-25 03:17:33,204 INFO L125 PetriNetUnfolderBase]: For 23165/23165 co-relation queries the response was YES. [2023-08-25 03:17:33,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27964 conditions, 5788 events. 2850/5788 cut-off events. For 23165/23165 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 37854 event pairs, 571 based on Foata normal form. 63/5851 useless extension candidates. Maximal degree in co-relation 27879. Up to 4620 conditions per place. [2023-08-25 03:17:33,266 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 291 selfloop transitions, 84 changer transitions 4/379 dead transitions. [2023-08-25 03:17:33,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 379 transitions, 4240 flow [2023-08-25 03:17:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 521 transitions. [2023-08-25 03:17:33,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294715447154471 [2023-08-25 03:17:33,268 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 521 transitions. [2023-08-25 03:17:33,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 521 transitions. [2023-08-25 03:17:33,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:33,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 521 transitions. [2023-08-25 03:17:33,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 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 03:17:33,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:33,271 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 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 03:17:33,271 INFO L175 Difference]: Start difference. First operand has 130 places, 230 transitions, 2028 flow. Second operand 6 states and 521 transitions. [2023-08-25 03:17:33,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 379 transitions, 4240 flow [2023-08-25 03:17:33,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 379 transitions, 4170 flow, removed 17 selfloop flow, removed 2 redundant places. [2023-08-25 03:17:33,330 INFO L231 Difference]: Finished difference. Result has 138 places, 269 transitions, 2896 flow [2023-08-25 03:17:33,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2006, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2896, PETRI_PLACES=138, PETRI_TRANSITIONS=269} [2023-08-25 03:17:33,331 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 97 predicate places. [2023-08-25 03:17:33,331 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 269 transitions, 2896 flow [2023-08-25 03:17:33,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 0 states have call successors, (0), 0 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 03:17:33,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:33,332 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:33,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 03:17:33,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:33,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:33,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1007501029, now seen corresponding path program 1 times [2023-08-25 03:17:33,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:33,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692734097] [2023-08-25 03:17:33,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:33,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:34,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:34,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692734097] [2023-08-25 03:17:34,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692734097] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:34,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205562570] [2023-08-25 03:17:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:34,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:34,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:34,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:34,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 03:17:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:34,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-25 03:17:34,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:34,753 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:17:34,798 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:17:34,849 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:17:34,907 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:17:35,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,053 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:17:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,090 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:17:35,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,121 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:17:35,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,154 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:17:35,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:35,211 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:17:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:35,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:17:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:47,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205562570] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:17:47,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:17:47,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2023-08-25 03:17:47,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173323357] [2023-08-25 03:17:47,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:17:47,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 03:17:47,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 03:17:47,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=803, Unknown=3, NotChecked=0, Total=992 [2023-08-25 03:17:47,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 164 [2023-08-25 03:17:47,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 269 transitions, 2896 flow. Second operand has 32 states, 32 states have (on average 46.21875) internal successors, (1479), 32 states have internal predecessors, (1479), 0 states have call successors, (0), 0 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 03:17:47,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:47,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 164 [2023-08-25 03:17:47,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:54,634 INFO L124 PetriNetUnfolderBase]: 4085/8258 cut-off events. [2023-08-25 03:17:54,634 INFO L125 PetriNetUnfolderBase]: For 42689/42689 co-relation queries the response was YES. [2023-08-25 03:17:54,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43143 conditions, 8258 events. 4085/8258 cut-off events. For 42689/42689 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 58238 event pairs, 633 based on Foata normal form. 20/8278 useless extension candidates. Maximal degree in co-relation 43055. Up to 3386 conditions per place. [2023-08-25 03:17:54,752 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 683 selfloop transitions, 124 changer transitions 9/816 dead transitions. [2023-08-25 03:17:54,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 816 transitions, 9509 flow [2023-08-25 03:17:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 03:17:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 03:17:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 972 transitions. [2023-08-25 03:17:54,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704268292682927 [2023-08-25 03:17:54,755 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 972 transitions. [2023-08-25 03:17:54,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 972 transitions. [2023-08-25 03:17:54,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:54,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 972 transitions. [2023-08-25 03:17:54,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 60.75) internal successors, (972), 16 states have internal predecessors, (972), 0 states have call successors, (0), 0 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 03:17:54,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 164.0) internal successors, (2788), 17 states have internal predecessors, (2788), 0 states have call successors, (0), 0 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 03:17:54,762 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 164.0) internal successors, (2788), 17 states have internal predecessors, (2788), 0 states have call successors, (0), 0 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 03:17:54,762 INFO L175 Difference]: Start difference. First operand has 138 places, 269 transitions, 2896 flow. Second operand 16 states and 972 transitions. [2023-08-25 03:17:54,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 816 transitions, 9509 flow [2023-08-25 03:17:55,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 816 transitions, 9161 flow, removed 174 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:55,060 INFO L231 Difference]: Finished difference. Result has 164 places, 373 transitions, 4529 flow [2023-08-25 03:17:55,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2756, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4529, PETRI_PLACES=164, PETRI_TRANSITIONS=373} [2023-08-25 03:17:55,061 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 123 predicate places. [2023-08-25 03:17:55,061 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 373 transitions, 4529 flow [2023-08-25 03:17:55,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 46.21875) internal successors, (1479), 32 states have internal predecessors, (1479), 0 states have call successors, (0), 0 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 03:17:55,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:55,062 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:55,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:55,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-25 03:17:55,271 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:55,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:55,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1996055755, now seen corresponding path program 1 times [2023-08-25 03:17:55,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:55,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470453455] [2023-08-25 03:17:55,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:55,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:56,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:56,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470453455] [2023-08-25 03:17:56,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470453455] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:56,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728234922] [2023-08-25 03:17:56,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:56,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:56,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:56,449 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:56,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 03:17:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:56,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-25 03:17:56,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:56,873 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:17:56,915 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-25 03:17:56,960 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-25 03:17:57,012 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-25 03:17:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,194 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-25 03:17:57,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,229 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-25 03:17:57,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,257 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-25 03:17:57,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,280 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-25 03:17:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:17:57,341 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-25 03:17:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:57,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:17:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:58,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728234922] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:17:58,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:17:58,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2023-08-25 03:17:58,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553593447] [2023-08-25 03:17:58,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:17:58,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 03:17:58,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:58,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 03:17:58,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=794, Unknown=0, NotChecked=0, Total=992 [2023-08-25 03:17:58,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 164 [2023-08-25 03:17:58,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 373 transitions, 4529 flow. Second operand has 32 states, 32 states have (on average 46.21875) internal successors, (1479), 32 states have internal predecessors, (1479), 0 states have call successors, (0), 0 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 03:17:58,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:58,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 164 [2023-08-25 03:17:58,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:18:03,210 INFO L124 PetriNetUnfolderBase]: 4261/8610 cut-off events. [2023-08-25 03:18:03,211 INFO L125 PetriNetUnfolderBase]: For 54664/54664 co-relation queries the response was YES. [2023-08-25 03:18:03,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47495 conditions, 8610 events. 4261/8610 cut-off events. For 54664/54664 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 61270 event pairs, 631 based on Foata normal form. 15/8625 useless extension candidates. Maximal degree in co-relation 47394. Up to 3916 conditions per place. [2023-08-25 03:18:03,288 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 639 selfloop transitions, 176 changer transitions 8/823 dead transitions. [2023-08-25 03:18:03,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 823 transitions, 10746 flow [2023-08-25 03:18:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:18:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:18:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 837 transitions. [2023-08-25 03:18:03,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3645470383275261 [2023-08-25 03:18:03,298 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 837 transitions. [2023-08-25 03:18:03,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 837 transitions. [2023-08-25 03:18:03,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:18:03,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 837 transitions. [2023-08-25 03:18:03,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 59.785714285714285) internal successors, (837), 14 states have internal predecessors, (837), 0 states have call successors, (0), 0 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 03:18:03,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 164.0) internal successors, (2460), 15 states have internal predecessors, (2460), 0 states have call successors, (0), 0 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 03:18:03,304 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 164.0) internal successors, (2460), 15 states have internal predecessors, (2460), 0 states have call successors, (0), 0 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 03:18:03,305 INFO L175 Difference]: Start difference. First operand has 164 places, 373 transitions, 4529 flow. Second operand 14 states and 837 transitions. [2023-08-25 03:18:03,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 823 transitions, 10746 flow [2023-08-25 03:18:03,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 823 transitions, 10683 flow, removed 31 selfloop flow, removed 1 redundant places. [2023-08-25 03:18:03,500 INFO L231 Difference]: Finished difference. Result has 187 places, 462 transitions, 6622 flow [2023-08-25 03:18:03,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=4480, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6622, PETRI_PLACES=187, PETRI_TRANSITIONS=462} [2023-08-25 03:18:03,501 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 146 predicate places. [2023-08-25 03:18:03,501 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 462 transitions, 6622 flow [2023-08-25 03:18:03,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 46.21875) internal successors, (1479), 32 states have internal predecessors, (1479), 0 states have call successors, (0), 0 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 03:18:03,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:18:03,502 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:18:03,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-25 03:18:03,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-25 03:18:03,708 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:18:03,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:18:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash -369677325, now seen corresponding path program 2 times [2023-08-25 03:18:03,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:18:03,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152783711] [2023-08-25 03:18:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:18:03,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:18:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:18:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:04,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:18:04,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152783711] [2023-08-25 03:18:04,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152783711] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:18:04,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792622553] [2023-08-25 03:18:04,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:18:04,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:18:04,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:18:04,761 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:18:04,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 03:18:04,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 03:18:04,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:18:04,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-25 03:18:04,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:18:05,112 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:18:05,156 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:18:05,194 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:18:05,249 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:18:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,356 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:18:05,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,379 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:18:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,412 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:18:05,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,436 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:18:05,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:05,489 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:18:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:05,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:18:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:25,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792622553] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:18:25,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:18:25,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-25 03:18:25,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093151360] [2023-08-25 03:18:25,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:18:25,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-25 03:18:25,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:18:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-25 03:18:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=870, Unknown=8, NotChecked=0, Total=1056 [2023-08-25 03:18:25,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 164 [2023-08-25 03:18:25,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 462 transitions, 6622 flow. Second operand has 33 states, 33 states have (on average 46.121212121212125) internal successors, (1522), 33 states have internal predecessors, (1522), 0 states have call successors, (0), 0 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 03:18:25,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:18:25,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 164 [2023-08-25 03:18:25,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:18:34,504 INFO L124 PetriNetUnfolderBase]: 7422/14996 cut-off events. [2023-08-25 03:18:34,504 INFO L125 PetriNetUnfolderBase]: For 122849/122849 co-relation queries the response was YES. [2023-08-25 03:18:34,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87454 conditions, 14996 events. 7422/14996 cut-off events. For 122849/122849 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 111616 event pairs, 1139 based on Foata normal form. 35/15031 useless extension candidates. Maximal degree in co-relation 87341. Up to 3920 conditions per place. [2023-08-25 03:18:34,672 INFO L140 encePairwiseOnDemand]: 145/164 looper letters, 1413 selfloop transitions, 322 changer transitions 65/1800 dead transitions. [2023-08-25 03:18:34,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 1800 transitions, 24371 flow [2023-08-25 03:18:34,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-25 03:18:34,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-25 03:18:34,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1825 transitions. [2023-08-25 03:18:34,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3837258200168209 [2023-08-25 03:18:34,678 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1825 transitions. [2023-08-25 03:18:34,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1825 transitions. [2023-08-25 03:18:34,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:18:34,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1825 transitions. [2023-08-25 03:18:34,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 62.93103448275862) internal successors, (1825), 29 states have internal predecessors, (1825), 0 states have call successors, (0), 0 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 03:18:34,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 164.0) internal successors, (4920), 30 states have internal predecessors, (4920), 0 states have call successors, (0), 0 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 03:18:34,688 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 164.0) internal successors, (4920), 30 states have internal predecessors, (4920), 0 states have call successors, (0), 0 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 03:18:34,688 INFO L175 Difference]: Start difference. First operand has 187 places, 462 transitions, 6622 flow. Second operand 29 states and 1825 transitions. [2023-08-25 03:18:34,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 1800 transitions, 24371 flow [2023-08-25 03:18:35,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 1800 transitions, 24041 flow, removed 162 selfloop flow, removed 2 redundant places. [2023-08-25 03:18:35,184 INFO L231 Difference]: Finished difference. Result has 233 places, 665 transitions, 11342 flow [2023-08-25 03:18:35,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6478, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=11342, PETRI_PLACES=233, PETRI_TRANSITIONS=665} [2023-08-25 03:18:35,185 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 192 predicate places. [2023-08-25 03:18:35,186 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 665 transitions, 11342 flow [2023-08-25 03:18:35,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 46.121212121212125) internal successors, (1522), 33 states have internal predecessors, (1522), 0 states have call successors, (0), 0 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 03:18:35,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:18:35,187 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:18:35,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-25 03:18:35,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-25 03:18:35,392 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:18:35,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:18:35,393 INFO L85 PathProgramCache]: Analyzing trace with hash -621812669, now seen corresponding path program 1 times [2023-08-25 03:18:35,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:18:35,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332882861] [2023-08-25 03:18:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:18:35,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:18:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:18:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:36,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:18:36,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332882861] [2023-08-25 03:18:36,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332882861] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:18:36,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794111570] [2023-08-25 03:18:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:18:36,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:18:36,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:18:36,161 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:18:36,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-25 03:18:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:18:36,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-25 03:18:36,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:18:36,561 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:18:36,592 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:18:36,634 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:18:36,691 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:18:36,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:36,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:36,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:36,800 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:18:36,832 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:36,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:18:42,560 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:42,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794111570] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:18:42,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:18:42,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 03:18:42,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661897450] [2023-08-25 03:18:42,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:18:42,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 03:18:42,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:18:42,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 03:18:42,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=740, Unknown=1, NotChecked=0, Total=930 [2023-08-25 03:18:42,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 164 [2023-08-25 03:18:42,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 665 transitions, 11342 flow. Second operand has 31 states, 31 states have (on average 44.32258064516129) internal successors, (1374), 31 states have internal predecessors, (1374), 0 states have call successors, (0), 0 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 03:18:42,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:18:42,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 164 [2023-08-25 03:18:42,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:18:49,280 INFO L124 PetriNetUnfolderBase]: 8576/17285 cut-off events. [2023-08-25 03:18:49,280 INFO L125 PetriNetUnfolderBase]: For 179304/179304 co-relation queries the response was YES. [2023-08-25 03:18:49,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108728 conditions, 17285 events. 8576/17285 cut-off events. For 179304/179304 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 133424 event pairs, 2217 based on Foata normal form. 26/17311 useless extension candidates. Maximal degree in co-relation 108595. Up to 7744 conditions per place. [2023-08-25 03:18:49,461 INFO L140 encePairwiseOnDemand]: 143/164 looper letters, 1030 selfloop transitions, 221 changer transitions 9/1260 dead transitions. [2023-08-25 03:18:49,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1260 transitions, 20958 flow [2023-08-25 03:18:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 03:18:49,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 03:18:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 940 transitions. [2023-08-25 03:18:49,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35823170731707316 [2023-08-25 03:18:49,464 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 940 transitions. [2023-08-25 03:18:49,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 940 transitions. [2023-08-25 03:18:49,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:18:49,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 940 transitions. [2023-08-25 03:18:49,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 58.75) internal successors, (940), 16 states have internal predecessors, (940), 0 states have call successors, (0), 0 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 03:18:49,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 164.0) internal successors, (2788), 17 states have internal predecessors, (2788), 0 states have call successors, (0), 0 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 03:18:49,470 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 164.0) internal successors, (2788), 17 states have internal predecessors, (2788), 0 states have call successors, (0), 0 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 03:18:49,470 INFO L175 Difference]: Start difference. First operand has 233 places, 665 transitions, 11342 flow. Second operand 16 states and 940 transitions. [2023-08-25 03:18:49,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1260 transitions, 20958 flow [2023-08-25 03:18:50,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1260 transitions, 20375 flow, removed 206 selfloop flow, removed 3 redundant places. [2023-08-25 03:18:50,128 INFO L231 Difference]: Finished difference. Result has 255 places, 830 transitions, 14282 flow [2023-08-25 03:18:50,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=10900, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=14282, PETRI_PLACES=255, PETRI_TRANSITIONS=830} [2023-08-25 03:18:50,129 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 214 predicate places. [2023-08-25 03:18:50,129 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 830 transitions, 14282 flow [2023-08-25 03:18:50,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 44.32258064516129) internal successors, (1374), 31 states have internal predecessors, (1374), 0 states have call successors, (0), 0 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 03:18:50,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:18:50,130 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:18:50,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-25 03:18:50,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-25 03:18:50,336 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:18:50,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:18:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1203491622, now seen corresponding path program 1 times [2023-08-25 03:18:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:18:50,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481502461] [2023-08-25 03:18:50,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:18:50,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:18:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:18:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:51,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:18:51,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481502461] [2023-08-25 03:18:51,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481502461] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:18:51,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073923669] [2023-08-25 03:18:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:18:51,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:18:51,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:18:51,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:18:51,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-25 03:18:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:18:51,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-25 03:18:51,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:18:51,821 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:18:51,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:51,859 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-25 03:18:51,871 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:18:51,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:51,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:51,910 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-08-25 03:18:51,920 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:18:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:51,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:51,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:51,969 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-08-25 03:18:51,987 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:18:52,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:18:52,119 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 60 [2023-08-25 03:18:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:18:56,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:19:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:19:09,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073923669] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:19:09,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:19:09,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 15] total 36 [2023-08-25 03:19:09,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194300264] [2023-08-25 03:19:09,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:19:09,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-08-25 03:19:09,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:19:09,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-08-25 03:19:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1113, Unknown=2, NotChecked=0, Total=1332 [2023-08-25 03:19:09,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 164 [2023-08-25 03:19:09,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 830 transitions, 14282 flow. Second operand has 37 states, 37 states have (on average 45.78378378378378) internal successors, (1694), 37 states have internal predecessors, (1694), 0 states have call successors, (0), 0 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 03:19:09,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:19:09,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 164 [2023-08-25 03:19:09,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:19:35,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 03:19:37,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 03:19:43,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 03:19:56,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 03:20:01,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:03,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:15,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:22,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:27,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:32,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:36,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:40,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:50,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:20:52,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:21:05,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:21:23,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:21:47,949 WARN L234 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 139 DAG size of output: 124 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 03:21:53,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:21:56,723 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| 2)) (.cse57 (select |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|)) (.cse10 (+ |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| 1))) (let ((.cse24 (store |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store .cse57 .cse10 0))) (.cse13 (* |c_t_funThread1of1ForFork0_~i~0#1| 28)) (.cse17 (store |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store .cse57 .cse2 0)))) (let ((.cse6 (select |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|)) (.cse18 (select .cse17 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|)) (.cse12 (not (= |c_~#cache~0.base| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (.cse34 (+ .cse13 |c_~#cache~0.offset|)) (.cse5 (+ |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| 3)) (.cse7 (+ |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| 3)) (.cse25 (select .cse24 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|)) (.cse3 (+ |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| 2))) (and (forall ((v_ArrVal_1517 Int)) (let ((.cse0 (let ((.cse4 (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 .cse7 v_ArrVal_1517)))) (store .cse4 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse4 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse0 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse1 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2) 0)) (not (= (select .cse1 .cse3) 0)))))) (forall ((v_ArrVal_1517 Int)) (let ((.cse8 (let ((.cse11 (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 .cse7 v_ArrVal_1517)))) (store .cse11 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse11 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse9 (select .cse8 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse8 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse9 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse10) 0)) (not (= (select .cse9 .cse3) 0)))))) (< |c_t_funThread1of1ForFork0_~i~0#1| |c_ULTIMATE.start_main_~i~2#1|) (or (and (forall ((v_ArrVal_1521 Int)) (= (select (select (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse10) 0)) (forall ((v_ArrVal_1521 Int)) (= (select (select (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5) 0)) (forall ((v_ArrVal_1521 Int)) (= (select (select (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)) (forall ((v_ArrVal_1521 Int)) (= (select (select (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2) 0))) (not (= 0 (select .cse6 .cse3)))) (or .cse12 (not (= (+ 3 .cse13 |c_~#cache~0.offset|) |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset|))) (forall ((v_ArrVal_1517 Int)) (let ((.cse14 (let ((.cse16 (store .cse17 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse18 .cse7 v_ArrVal_1517)))) (store .cse16 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse16 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse14 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse15 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2) 0)) (not (= (select .cse15 .cse3) 0)))))) (forall ((v_ArrVal_1517 Int) (v_ArrVal_1512 Int)) (let ((.cse20 (let ((.cse21 (let ((.cse22 (let ((.cse23 (store .cse24 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse25 .cse3 v_ArrVal_1512)))) (store .cse23 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse23 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2 0))))) (store .cse22 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store (select .cse22 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|) .cse7 v_ArrVal_1517))))) (store .cse21 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse21 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse19 (select .cse20 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (not (= (select .cse19 .cse3) 0)) (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse20 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse19 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)))))) (forall ((v_ArrVal_1517 Int) (v_ArrVal_1512 Int)) (let ((.cse26 (let ((.cse28 (let ((.cse29 (let ((.cse30 (store .cse24 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse25 .cse3 v_ArrVal_1512)))) (store .cse30 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse30 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2 0))))) (store .cse29 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store (select .cse29 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|) .cse7 v_ArrVal_1517))))) (store .cse28 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse28 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse27 (select .cse26 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse26 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse27 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2) 0)) (not (= (select .cse27 .cse3) 0)))))) (forall ((v_ArrVal_1517 Int)) (let ((.cse31 (let ((.cse33 (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 .cse7 v_ArrVal_1517)))) (store .cse33 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse33 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse32 (select .cse31 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse31 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse32 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)) (not (= (select .cse32 .cse3) 0)))))) (or .cse12 (not (= .cse34 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset|))) (forall ((v_ArrVal_1517 Int)) (let ((.cse35 (let ((.cse37 (store .cse17 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse18 .cse7 v_ArrVal_1517)))) (store .cse37 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse37 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse36 (select .cse35 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse35 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse36 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse10) 0)) (not (= (select .cse36 .cse3) 0)))))) (or (not (= (+ 2 .cse13 |c_~#cache~0.offset|) |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset|)) .cse12) (= |c_~#cache~0.base| 1) (forall ((v_ArrVal_1517 Int)) (let ((.cse38 (let ((.cse40 (store .cse17 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse18 .cse7 v_ArrVal_1517)))) (store .cse40 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse40 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse39 (select .cse38 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse38 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse39 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5) 0)) (not (= (select .cse39 .cse3) 0)))))) (< 0 (+ |c_ULTIMATE.start_main_~i~2#1| 1)) (or .cse12 (not (= .cse7 .cse34))) (= |c_~#cache~0.offset| 0) (forall ((v_ArrVal_1517 Int)) (let ((.cse42 (let ((.cse43 (store |c_#race| |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse6 .cse7 v_ArrVal_1517)))) (store .cse43 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse43 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse41 (select .cse42 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (not (= (select .cse41 .cse3) 0)) (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse42 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse41 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5) 0)))))) (forall ((v_ArrVal_1517 Int) (v_ArrVal_1512 Int)) (let ((.cse45 (let ((.cse46 (let ((.cse47 (let ((.cse48 (store .cse24 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse25 .cse3 v_ArrVal_1512)))) (store .cse48 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse48 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2 0))))) (store .cse47 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store (select .cse47 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|) .cse7 v_ArrVal_1517))))) (store .cse46 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse46 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse44 (select .cse45 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (not (= (select .cse44 .cse3) 0)) (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse45 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse44 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5) 0)))))) (forall ((v_ArrVal_1517 Int)) (let ((.cse49 (let ((.cse51 (store .cse17 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse18 .cse7 v_ArrVal_1517)))) (store .cse51 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse51 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse50 (select .cse49 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse49 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse50 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)) (not (= (select .cse50 .cse3) 0)))))) (or .cse12 (not (= |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| (+ .cse13 |c_~#cache~0.offset| 1)))) (or (not (= .cse34 .cse3)) .cse12) (or .cse12 (not (= .cse34 (+ |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| 1)))) (forall ((v_ArrVal_1517 Int) (v_ArrVal_1512 Int)) (let ((.cse53 (let ((.cse54 (let ((.cse55 (let ((.cse56 (store .cse24 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse25 .cse3 v_ArrVal_1512)))) (store .cse56 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse56 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse2 0))))) (store .cse55 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store (select .cse55 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|) .cse7 v_ArrVal_1517))))) (store .cse54 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse54 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse5 0))))) (let ((.cse52 (select .cse53 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|))) (or (not (= (select .cse52 .cse3) 0)) (forall ((v_ArrVal_1521 Int)) (= (select (select (store .cse53 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store .cse52 |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| v_ArrVal_1521)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse10) 0)))))))))) is different from true [2023-08-25 03:21:58,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:00,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:04,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:08,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:11,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:12,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:16,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:21,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:23,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:26,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:31,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:32,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:35,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:37,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:39,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:22:54,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:23:01,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:23:09,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:23:15,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:23:23,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:23:26,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:23:30,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 03:23:55,627 INFO L124 PetriNetUnfolderBase]: 19350/38819 cut-off events. [2023-08-25 03:23:55,627 INFO L125 PetriNetUnfolderBase]: For 416148/416148 co-relation queries the response was YES. [2023-08-25 03:23:56,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252571 conditions, 38819 events. 19350/38819 cut-off events. For 416148/416148 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 324092 event pairs, 3245 based on Foata normal form. 85/38904 useless extension candidates. Maximal degree in co-relation 252427. Up to 8837 conditions per place. [2023-08-25 03:23:56,270 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 3942 selfloop transitions, 835 changer transitions 195/4972 dead transitions. [2023-08-25 03:23:56,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 4972 transitions, 78682 flow [2023-08-25 03:23:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-08-25 03:23:56,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2023-08-25 03:23:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 4394 transitions. [2023-08-25 03:23:56,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3620632827949901 [2023-08-25 03:23:56,277 INFO L72 ComplementDD]: Start complementDD. Operand 74 states and 4394 transitions. [2023-08-25 03:23:56,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 4394 transitions. [2023-08-25 03:23:56,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:23:56,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 74 states and 4394 transitions. [2023-08-25 03:23:56,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 75 states, 74 states have (on average 59.37837837837838) internal successors, (4394), 74 states have internal predecessors, (4394), 0 states have call successors, (0), 0 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 03:23:56,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 75 states, 75 states have (on average 164.0) internal successors, (12300), 75 states have internal predecessors, (12300), 0 states have call successors, (0), 0 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 03:23:56,297 INFO L81 ComplementDD]: Finished complementDD. Result has 75 states, 75 states have (on average 164.0) internal successors, (12300), 75 states have internal predecessors, (12300), 0 states have call successors, (0), 0 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 03:23:56,298 INFO L175 Difference]: Start difference. First operand has 255 places, 830 transitions, 14282 flow. Second operand 74 states and 4394 transitions. [2023-08-25 03:23:56,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 4972 transitions, 78682 flow [2023-08-25 03:23:59,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 4972 transitions, 78341 flow, removed 170 selfloop flow, removed 1 redundant places. [2023-08-25 03:23:59,839 INFO L231 Difference]: Finished difference. Result has 387 places, 1619 transitions, 30990 flow [2023-08-25 03:23:59,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=14211, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=74, PETRI_FLOW=30990, PETRI_PLACES=387, PETRI_TRANSITIONS=1619} [2023-08-25 03:23:59,840 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 346 predicate places. [2023-08-25 03:23:59,841 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 1619 transitions, 30990 flow [2023-08-25 03:23:59,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 45.78378378378378) internal successors, (1694), 37 states have internal predecessors, (1694), 0 states have call successors, (0), 0 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 03:23:59,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:23:59,841 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:23:59,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-25 03:24:00,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-25 03:24:00,042 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:24:00,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:24:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1305325522, now seen corresponding path program 2 times [2023-08-25 03:24:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:24:00,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122403434] [2023-08-25 03:24:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:24:00,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:24:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:24:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:24:01,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:24:01,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122403434] [2023-08-25 03:24:01,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122403434] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:24:01,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087788345] [2023-08-25 03:24:01,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:24:01,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:24:01,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:24:01,063 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:24:01,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-25 03:24:01,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 03:24:01,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:24:01,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 56 conjunts are in the unsatisfiable core [2023-08-25 03:24:01,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:24:01,435 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:24:01,465 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:24:01,502 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:24:01,548 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:24:01,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,644 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:24:01,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,664 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:24:01,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,689 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:24:01,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 03:24:01,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:24:01,753 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:24:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:24:01,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:24:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:24:15,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087788345] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:24:15,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:24:15,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-25 03:24:15,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790391556] [2023-08-25 03:24:15,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:24:15,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-25 03:24:15,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:24:15,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-25 03:24:15,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=870, Unknown=2, NotChecked=0, Total=1056 [2023-08-25 03:24:15,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 164 [2023-08-25 03:24:15,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 1619 transitions, 30990 flow. Second operand has 33 states, 33 states have (on average 46.121212121212125) internal successors, (1522), 33 states have internal predecessors, (1522), 0 states have call successors, (0), 0 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 03:24:15,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:24:15,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 164 [2023-08-25 03:24:15,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:24:56,870 INFO L124 PetriNetUnfolderBase]: 25727/51582 cut-off events. [2023-08-25 03:24:56,870 INFO L125 PetriNetUnfolderBase]: For 1246052/1246052 co-relation queries the response was YES. [2023-08-25 03:24:58,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438907 conditions, 51582 events. 25727/51582 cut-off events. For 1246052/1246052 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 443608 event pairs, 4471 based on Foata normal form. 99/51681 useless extension candidates. Maximal degree in co-relation 438702. Up to 11807 conditions per place. [2023-08-25 03:24:58,932 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 2424 selfloop transitions, 1130 changer transitions 42/3596 dead transitions. [2023-08-25 03:24:58,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 3596 transitions, 71607 flow [2023-08-25 03:24:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-25 03:24:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-25 03:24:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1866 transitions. [2023-08-25 03:24:58,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37926829268292683 [2023-08-25 03:24:58,936 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1866 transitions. [2023-08-25 03:24:58,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1866 transitions. [2023-08-25 03:24:58,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:24:58,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1866 transitions. [2023-08-25 03:24:58,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 62.2) internal successors, (1866), 30 states have internal predecessors, (1866), 0 states have call successors, (0), 0 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 03:24:58,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 164.0) internal successors, (5084), 31 states have internal predecessors, (5084), 0 states have call successors, (0), 0 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 03:24:58,946 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 164.0) internal successors, (5084), 31 states have internal predecessors, (5084), 0 states have call successors, (0), 0 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 03:24:58,946 INFO L175 Difference]: Start difference. First operand has 387 places, 1619 transitions, 30990 flow. Second operand 30 states and 1866 transitions. [2023-08-25 03:24:58,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 3596 transitions, 71607 flow [2023-08-25 03:25:11,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 3596 transitions, 68837 flow, removed 1367 selfloop flow, removed 3 redundant places. [2023-08-25 03:25:11,562 INFO L231 Difference]: Finished difference. Result has 427 places, 2117 transitions, 44037 flow [2023-08-25 03:25:11,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=29581, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=667, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=44037, PETRI_PLACES=427, PETRI_TRANSITIONS=2117} [2023-08-25 03:25:11,563 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 386 predicate places. [2023-08-25 03:25:11,563 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 2117 transitions, 44037 flow [2023-08-25 03:25:11,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 46.121212121212125) internal successors, (1522), 33 states have internal predecessors, (1522), 0 states have call successors, (0), 0 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 03:25:11,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:11,564 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:11,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-25 03:25:11,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-25 03:25:11,765 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:25:11,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2129745407, now seen corresponding path program 1 times [2023-08-25 03:25:11,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:11,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194680870] [2023-08-25 03:25:11,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:11,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:25:12,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:12,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194680870] [2023-08-25 03:25:12,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194680870] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:25:12,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713978528] [2023-08-25 03:25:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:12,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:25:12,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:25:12,307 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:25:12,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-25 03:25:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:12,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-25 03:25:12,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:25:12,786 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:25:12,825 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:25:12,868 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:25:12,913 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:25:12,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:25:12,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:25:12,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:25:12,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:25:12,957 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:25:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:25:12,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:25:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:25:13,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713978528] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:25:13,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:25:13,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-25 03:25:13,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575231871] [2023-08-25 03:25:13,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:25:13,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 03:25:13,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:13,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 03:25:13,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2023-08-25 03:25:13,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 164 [2023-08-25 03:25:13,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 2117 transitions, 44037 flow. Second operand has 32 states, 32 states have (on average 44.21875) internal successors, (1415), 32 states have internal predecessors, (1415), 0 states have call successors, (0), 0 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 03:25:13,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:13,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 164 [2023-08-25 03:25:13,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:58,340 INFO L124 PetriNetUnfolderBase]: 27478/55098 cut-off events. [2023-08-25 03:25:58,340 INFO L125 PetriNetUnfolderBase]: For 1441756/1441756 co-relation queries the response was YES. [2023-08-25 03:26:00,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479298 conditions, 55098 events. 27478/55098 cut-off events. For 1441756/1441756 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 480532 event pairs, 7207 based on Foata normal form. 56/55154 useless extension candidates. Maximal degree in co-relation 479075. Up to 38869 conditions per place. [2023-08-25 03:26:01,053 INFO L140 encePairwiseOnDemand]: 142/164 looper letters, 3305 selfloop transitions, 492 changer transitions 38/3835 dead transitions. [2023-08-25 03:26:01,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 3835 transitions, 78664 flow [2023-08-25 03:26:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-25 03:26:01,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-25 03:26:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 1901 transitions. [2023-08-25 03:26:01,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3622332317073171 [2023-08-25 03:26:01,057 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 1901 transitions. [2023-08-25 03:26:01,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 1901 transitions. [2023-08-25 03:26:01,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:26:01,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 1901 transitions. [2023-08-25 03:26:01,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 59.40625) internal successors, (1901), 32 states have internal predecessors, (1901), 0 states have call successors, (0), 0 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 03:26:01,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 164.0) internal successors, (5412), 33 states have internal predecessors, (5412), 0 states have call successors, (0), 0 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 03:26:01,068 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 164.0) internal successors, (5412), 33 states have internal predecessors, (5412), 0 states have call successors, (0), 0 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 03:26:01,068 INFO L175 Difference]: Start difference. First operand has 427 places, 2117 transitions, 44037 flow. Second operand 32 states and 1901 transitions. [2023-08-25 03:26:01,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 3835 transitions, 78664 flow [2023-08-25 03:26:14,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 3835 transitions, 78024 flow, removed 180 selfloop flow, removed 7 redundant places. [2023-08-25 03:26:14,456 INFO L231 Difference]: Finished difference. Result has 476 places, 2480 transitions, 52448 flow [2023-08-25 03:26:14,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=43598, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1774, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=52448, PETRI_PLACES=476, PETRI_TRANSITIONS=2480} [2023-08-25 03:26:14,458 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 435 predicate places. [2023-08-25 03:26:14,458 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 2480 transitions, 52448 flow [2023-08-25 03:26:14,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 44.21875) internal successors, (1415), 32 states have internal predecessors, (1415), 0 states have call successors, (0), 0 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 03:26:14,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:26:14,459 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:26:14,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-25 03:26:14,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:26:14,659 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:26:14,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:26:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1410532005, now seen corresponding path program 3 times [2023-08-25 03:26:14,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:26:14,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962286986] [2023-08-25 03:26:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:26:14,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:26:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:26:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:26:15,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:26:15,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962286986] [2023-08-25 03:26:15,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962286986] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:26:15,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300190200] [2023-08-25 03:26:15,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 03:26:15,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:26:15,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:26:15,472 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:26:15,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-25 03:26:15,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 03:26:15,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:26:15,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 53 conjunts are in the unsatisfiable core [2023-08-25 03:26:15,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:26:15,932 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:26:15,966 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:26:16,003 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:26:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,101 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:26:16,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,118 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-08-25 03:26:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,136 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-08-25 03:26:16,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,152 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-08-25 03:26:16,173 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:26:16,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:26:16,241 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:26:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:26:16,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:26:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:26:37,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300190200] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:26:37,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:26:37,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-25 03:26:37,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708675779] [2023-08-25 03:26:37,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:26:37,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-25 03:26:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:26:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-25 03:26:37,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=892, Unknown=4, NotChecked=0, Total=1056 [2023-08-25 03:26:37,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 164 [2023-08-25 03:26:37,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 2480 transitions, 52448 flow. Second operand has 33 states, 33 states have (on average 46.121212121212125) internal successors, (1522), 33 states have internal predecessors, (1522), 0 states have call successors, (0), 0 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 03:26:37,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:26:37,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 164 [2023-08-25 03:26:37,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:35,853 INFO L124 PetriNetUnfolderBase]: 28042/56234 cut-off events. [2023-08-25 03:27:35,854 INFO L125 PetriNetUnfolderBase]: For 1721653/1721653 co-relation queries the response was YES. [2023-08-25 03:27:38,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520639 conditions, 56234 events. 28042/56234 cut-off events. For 1721653/1721653 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 492743 event pairs, 6029 based on Foata normal form. 85/56319 useless extension candidates. Maximal degree in co-relation 520391. Up to 37482 conditions per place. [2023-08-25 03:27:38,807 INFO L140 encePairwiseOnDemand]: 145/164 looper letters, 3195 selfloop transitions, 645 changer transitions 41/3881 dead transitions. [2023-08-25 03:27:38,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 3881 transitions, 84081 flow [2023-08-25 03:27:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-25 03:27:38,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-25 03:27:38,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1897 transitions. [2023-08-25 03:27:38,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3855691056910569 [2023-08-25 03:27:38,810 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1897 transitions. [2023-08-25 03:27:38,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1897 transitions. [2023-08-25 03:27:38,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:38,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1897 transitions. [2023-08-25 03:27:38,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 63.233333333333334) internal successors, (1897), 30 states have internal predecessors, (1897), 0 states have call successors, (0), 0 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 03:27:38,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 164.0) internal successors, (5084), 31 states have internal predecessors, (5084), 0 states have call successors, (0), 0 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 03:27:38,819 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 164.0) internal successors, (5084), 31 states have internal predecessors, (5084), 0 states have call successors, (0), 0 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 03:27:38,819 INFO L175 Difference]: Start difference. First operand has 476 places, 2480 transitions, 52448 flow. Second operand 30 states and 1897 transitions. [2023-08-25 03:27:38,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 3881 transitions, 84081 flow [2023-08-25 03:27:56,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 3881 transitions, 82768 flow, removed 656 selfloop flow, removed 1 redundant places. [2023-08-25 03:27:56,974 INFO L231 Difference]: Finished difference. Result has 514 places, 2587 transitions, 56146 flow [2023-08-25 03:27:56,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=51483, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=538, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1883, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=56146, PETRI_PLACES=514, PETRI_TRANSITIONS=2587} [2023-08-25 03:27:56,977 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 473 predicate places. [2023-08-25 03:27:56,977 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 2587 transitions, 56146 flow [2023-08-25 03:27:56,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 46.121212121212125) internal successors, (1522), 33 states have internal predecessors, (1522), 0 states have call successors, (0), 0 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 03:27:56,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:56,978 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:56,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-25 03:27:57,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:27:57,183 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:27:57,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1089186765, now seen corresponding path program 2 times [2023-08-25 03:27:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450491578] [2023-08-25 03:27:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:27:57,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:57,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450491578] [2023-08-25 03:27:57,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450491578] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:27:57,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273809685] [2023-08-25 03:27:57,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:27:57,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:27:57,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:27:57,673 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:27:57,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-25 03:27:57,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 03:27:57,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:27:57,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-25 03:27:57,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:27:58,092 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:27:58,126 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:27:58,166 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:27:58,209 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:27:58,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:27:58,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:27:58,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:27:58,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:27:58,316 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-25 03:27:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:27:58,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:28:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:28:11,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273809685] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:28:11,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:28:11,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-25 03:28:11,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586659695] [2023-08-25 03:28:11,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:28:11,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 03:28:11,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:28:11,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 03:28:11,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=808, Unknown=5, NotChecked=0, Total=992 [2023-08-25 03:28:11,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 164 [2023-08-25 03:28:11,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 2587 transitions, 56146 flow. Second operand has 32 states, 32 states have (on average 44.21875) internal successors, (1415), 32 states have internal predecessors, (1415), 0 states have call successors, (0), 0 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 03:28:11,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:28:11,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 164 [2023-08-25 03:28:11,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:29:06,121 INFO L124 PetriNetUnfolderBase]: 28238/56714 cut-off events. [2023-08-25 03:29:06,122 INFO L125 PetriNetUnfolderBase]: For 1789337/1789337 co-relation queries the response was YES. [2023-08-25 03:29:08,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533242 conditions, 56714 events. 28238/56714 cut-off events. For 1789337/1789337 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 497379 event pairs, 5704 based on Foata normal form. 56/56770 useless extension candidates. Maximal degree in co-relation 532983. Up to 12836 conditions per place. [2023-08-25 03:29:08,634 INFO L140 encePairwiseOnDemand]: 142/164 looper letters, 3282 selfloop transitions, 1078 changer transitions 79/4439 dead transitions. [2023-08-25 03:29:08,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 4439 transitions, 96071 flow [2023-08-25 03:29:08,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-08-25 03:29:08,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-08-25 03:29:08,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2004 transitions. [2023-08-25 03:29:08,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37028824833702884 [2023-08-25 03:29:08,637 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2004 transitions. [2023-08-25 03:29:08,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2004 transitions. [2023-08-25 03:29:08,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:29:08,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2004 transitions. [2023-08-25 03:29:08,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 60.72727272727273) internal successors, (2004), 33 states have internal predecessors, (2004), 0 states have call successors, (0), 0 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 03:29:08,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 164.0) internal successors, (5576), 34 states have internal predecessors, (5576), 0 states have call successors, (0), 0 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 03:29:08,645 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 164.0) internal successors, (5576), 34 states have internal predecessors, (5576), 0 states have call successors, (0), 0 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 03:29:08,645 INFO L175 Difference]: Start difference. First operand has 514 places, 2587 transitions, 56146 flow. Second operand 33 states and 2004 transitions. [2023-08-25 03:29:08,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 4439 transitions, 96071 flow [2023-08-25 03:29:27,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 4439 transitions, 95102 flow, removed 140 selfloop flow, removed 16 redundant places. [2023-08-25 03:29:27,977 INFO L231 Difference]: Finished difference. Result has 551 places, 2958 transitions, 66270 flow [2023-08-25 03:29:27,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=55357, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=747, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=66270, PETRI_PLACES=551, PETRI_TRANSITIONS=2958} [2023-08-25 03:29:27,980 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 510 predicate places. [2023-08-25 03:29:27,980 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 2958 transitions, 66270 flow [2023-08-25 03:29:27,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 44.21875) internal successors, (1415), 32 states have internal predecessors, (1415), 0 states have call successors, (0), 0 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 03:29:27,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:29:27,981 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:29:27,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-08-25 03:29:28,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:29:28,186 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:29:28,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:29:28,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1395134369, now seen corresponding path program 2 times [2023-08-25 03:29:28,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:29:28,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216802363] [2023-08-25 03:29:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:29:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:29:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:29:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:29:29,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:29:29,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216802363] [2023-08-25 03:29:29,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216802363] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:29:29,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222890739] [2023-08-25 03:29:29,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:29:29,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:29:29,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:29:29,092 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:29:29,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-25 03:29:29,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 03:29:29,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:29:29,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 52 conjunts are in the unsatisfiable core [2023-08-25 03:29:29,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:29:29,502 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:29:29,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,535 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-25 03:29:29,552 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-25 03:29:29,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,598 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-25 03:29:29,614 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-25 03:29:29,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,669 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-25 03:29:29,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-25 03:29:29,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 03:29:29,825 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2023-08-25 03:29:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:29:33,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:29:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:29:47,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222890739] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:29:47,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:29:47,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 15] total 36 [2023-08-25 03:29:47,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615869573] [2023-08-25 03:29:47,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:29:47,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-08-25 03:29:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:29:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-08-25 03:29:47,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1112, Unknown=1, NotChecked=0, Total=1332 [2023-08-25 03:29:47,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 164 [2023-08-25 03:29:47,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 2958 transitions, 66270 flow. Second operand has 37 states, 37 states have (on average 45.78378378378378) internal successors, (1694), 37 states have internal predecessors, (1694), 0 states have call successors, (0), 0 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 03:29:47,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:29:47,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 164 [2023-08-25 03:29:47,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-25 03:30:30,756 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 03:30:30,756 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 03:30:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-25 03:30:31,057 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 03:30:31,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-25 03:30:31,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:30:31,263 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (37states, 43/164 universal loopers) in iteration 22,while PetriNetUnfolder was constructing finite prefix that currently has 5722 conditions, 634 events (227/633 cut-off events. For 19647/19647 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3881 event pairs, 106 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 5488. Up to 308 conditions per place.). [2023-08-25 03:30:31,264 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 03:30:31,264 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-25 03:30:31,265 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-25 03:30:31,265 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 03:30:31,265 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 03:30:31,265 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 03:30:31,265 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-08-25 03:30:31,270 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:30:31,270 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:30:31,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:30:31 BasicIcfg [2023-08-25 03:30:31,272 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:30:31,272 INFO L158 Benchmark]: Toolchain (without parser) took 794742.57ms. Allocated memory was 364.9MB in the beginning and 12.8GB in the end (delta: 12.4GB). Free memory was 339.1MB in the beginning and 8.4GB in the end (delta: -8.1GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. [2023-08-25 03:30:31,272 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 364.9MB. Free memory is still 341.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:30:31,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.12ms. Allocated memory is still 364.9MB. Free memory was 339.1MB in the beginning and 311.4MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 03:30:31,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.82ms. Allocated memory is still 364.9MB. Free memory was 311.4MB in the beginning and 308.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:30:31,273 INFO L158 Benchmark]: Boogie Preprocessor took 41.51ms. Allocated memory is still 364.9MB. Free memory was 308.8MB in the beginning and 306.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:30:31,273 INFO L158 Benchmark]: RCFGBuilder took 436.49ms. Allocated memory is still 364.9MB. Free memory was 306.7MB in the beginning and 290.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 03:30:31,273 INFO L158 Benchmark]: TraceAbstraction took 793580.94ms. Allocated memory was 364.9MB in the beginning and 12.8GB in the end (delta: 12.4GB). Free memory was 289.9MB in the beginning and 8.4GB in the end (delta: -8.1GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. [2023-08-25 03:30:31,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 364.9MB. Free memory is still 341.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 604.12ms. Allocated memory is still 364.9MB. Free memory was 339.1MB in the beginning and 311.4MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 73.82ms. Allocated memory is still 364.9MB. Free memory was 311.4MB in the beginning and 308.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.51ms. Allocated memory is still 364.9MB. Free memory was 308.8MB in the beginning and 306.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 436.49ms. Allocated memory is still 364.9MB. Free memory was 306.7MB in the beginning and 290.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 793580.94ms. Allocated memory was 364.9MB in the beginning and 12.8GB in the end (delta: 12.4GB). Free memory was 289.9MB in the beginning and 8.4GB in the end (delta: -8.1GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 98 PlacesBefore, 41 PlacesAfterwards, 100 TransitionsBefore, 40 TransitionsAfterwards, 2960 CoEnabledTransitionPairs, 4 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 63 TotalNumberOfCompositions, 7963 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1916, independent: 1639, independent conditional: 0, independent unconditional: 1639, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1258, independent: 1208, independent conditional: 0, independent unconditional: 1208, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1916, independent: 431, independent conditional: 0, independent unconditional: 431, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 1258, unknown conditional: 0, unknown unconditional: 1258] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (37states, 43/164 universal loopers) in iteration 22,while PetriNetUnfolder was constructing finite prefix that currently has 5722 conditions, 634 events (227/633 cut-off events. For 19647/19647 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3881 event pairs, 106 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 5488. Up to 308 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (37states, 43/164 universal loopers) in iteration 22,while PetriNetUnfolder was constructing finite prefix that currently has 5722 conditions, 634 events (227/633 cut-off events. For 19647/19647 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3881 event pairs, 106 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 5488. Up to 308 conditions per place.). - TimeoutResultAtElement [Line: 937]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (37states, 43/164 universal loopers) in iteration 22,while PetriNetUnfolder was constructing finite prefix that currently has 5722 conditions, 634 events (227/633 cut-off events. For 19647/19647 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3881 event pairs, 106 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 5488. Up to 308 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (37states, 43/164 universal loopers) in iteration 22,while PetriNetUnfolder was constructing finite prefix that currently has 5722 conditions, 634 events (227/633 cut-off events. For 19647/19647 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3881 event pairs, 106 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 5488. Up to 308 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (37states, 43/164 universal loopers) in iteration 22,while PetriNetUnfolder was constructing finite prefix that currently has 5722 conditions, 634 events (227/633 cut-off events. For 19647/19647 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3881 event pairs, 106 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 5488. Up to 308 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 133 locations, 7 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: 793.5s, OverallIterations: 22, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 643.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 25 mSolverCounterUnknown, 5929 SdHoareTripleChecker+Valid, 241.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5929 mSDsluCounter, 3721 SdHoareTripleChecker+Invalid, 235.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 283 IncrementalHoareTripleChecker+Unchecked, 3094 mSDsCounter, 1106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30446 IncrementalHoareTripleChecker+Invalid, 31860 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1106 mSolverCounterUnsat, 627 mSDtfsCounter, 30446 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1519 GetRequests, 857 SyntacticMatches, 26 SemanticMatches, 636 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10836 ImplicationChecksByTransitivity, 249.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66270occurred in iteration=21, InterpolantAutomatonStates: 354, 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: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 141.5s InterpolantComputationTime, 1353 NumberOfCodeBlocks, 1321 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 1779 ConstructedInterpolants, 97 QuantifiedInterpolants, 70764 SizeOfPredicates, 180 NumberOfNonLiveVariables, 3939 ConjunctsInSsa, 651 ConjunctsInUnsatCore, 51 InterpolantComputations, 10 PerfectInterpolantSequences, 2292/2574 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown