/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 09:15:39,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 09:15:39,746 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 09:15:39,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 09:15:39,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 09:15:39,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 09:15:39,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 09:15:39,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 09:15:39,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 09:15:39,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 09:15:39,777 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 09:15:39,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 09:15:39,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 09:15:39,778 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 09:15:39,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 09:15:39,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 09:15:39,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 09:15:39,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 09:15:39,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 09:15:39,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 09:15:39,779 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 09:15:39,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 09:15:39,780 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 09:15:39,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 09:15:39,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 09:15:39,780 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 09:15:39,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 09:15:39,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:15:39,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 09:15:39,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 09:15:39,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 09:15:39,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 09:15:39,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 09:15:39,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 09:15:39,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 09:15:39,783 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 09:15:40,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 09:15:40,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 09:15:40,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 09:15:40,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 09:15:40,047 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 09:15:40,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2023-08-26 09:15:41,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 09:15:41,241 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 09:15:41,241 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2023-08-26 09:15:41,246 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e336800d8/bf105d638d584b139884685ac0e33b31/FLAG469cae4f5 [2023-08-26 09:15:41,271 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e336800d8/bf105d638d584b139884685ac0e33b31 [2023-08-26 09:15:41,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 09:15:41,274 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 09:15:41,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 09:15:41,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 09:15:41,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 09:15:41,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da0bca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41, skipping insertion in model container [2023-08-26 09:15:41,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,304 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 09:15:41,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:15:41,432 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 09:15:41,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:15:41,463 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:15:41,463 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:15:41,467 INFO L206 MainTranslator]: Completed translation [2023-08-26 09:15:41,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41 WrapperNode [2023-08-26 09:15:41,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 09:15:41,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 09:15:41,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 09:15:41,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 09:15:41,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,512 INFO L138 Inliner]: procedures = 20, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 112 [2023-08-26 09:15:41,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 09:15:41,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 09:15:41,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 09:15:41,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 09:15:41,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 09:15:41,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 09:15:41,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 09:15:41,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 09:15:41,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (1/1) ... [2023-08-26 09:15:41,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:15:41,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:41,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 09:15:41,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 09:15:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 09:15:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 09:15:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 09:15:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 09:15:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 09:15:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 09:15:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 09:15:41,616 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 09:15:41,703 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 09:15:41,705 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 09:15:41,962 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 09:15:42,026 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 09:15:42,026 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-26 09:15:42,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:15:42 BoogieIcfgContainer [2023-08-26 09:15:42,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 09:15:42,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 09:15:42,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 09:15:42,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 09:15:42,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:15:41" (1/3) ... [2023-08-26 09:15:42,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7914722f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:15:42, skipping insertion in model container [2023-08-26 09:15:42,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:15:41" (2/3) ... [2023-08-26 09:15:42,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7914722f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:15:42, skipping insertion in model container [2023-08-26 09:15:42,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:15:42" (3/3) ... [2023-08-26 09:15:42,039 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2023-08-26 09:15:42,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 09:15:42,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-26 09:15:42,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 09:15:42,127 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 09:15:42,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 208 transitions, 432 flow [2023-08-26 09:15:42,243 INFO L124 PetriNetUnfolderBase]: 8/206 cut-off events. [2023-08-26 09:15:42,244 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 09:15:42,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 206 events. 8/206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 312 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-08-26 09:15:42,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 208 transitions, 432 flow [2023-08-26 09:15:42,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 197 transitions, 406 flow [2023-08-26 09:15:42,267 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 09:15:42,276 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 197 transitions, 406 flow [2023-08-26 09:15:42,279 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 197 transitions, 406 flow [2023-08-26 09:15:42,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 197 transitions, 406 flow [2023-08-26 09:15:42,327 INFO L124 PetriNetUnfolderBase]: 8/197 cut-off events. [2023-08-26 09:15:42,327 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 09:15:42,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 8/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 312 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-08-26 09:15:42,332 INFO L119 LiptonReduction]: Number of co-enabled transitions 5616 [2023-08-26 09:15:46,504 INFO L134 LiptonReduction]: Checked pairs total: 15387 [2023-08-26 09:15:46,505 INFO L136 LiptonReduction]: Total number of compositions: 255 [2023-08-26 09:15:46,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 09:15:46,519 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;@aa1cd5e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 09:15:46,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2023-08-26 09:15:46,520 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 09:15:46,520 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 09:15:46,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 09:15:46,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:46,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 09:15:46,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:46,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash 869, now seen corresponding path program 1 times [2023-08-26 09:15:46,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:46,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864958389] [2023-08-26 09:15:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:46,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:46,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:46,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:46,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864958389] [2023-08-26 09:15:46,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864958389] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:46,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:46,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 09:15:46,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064405921] [2023-08-26 09:15:46,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:46,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 09:15:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 09:15:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 09:15:46,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 463 [2023-08-26 09:15:46,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 118 flow. Second operand has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:46,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 463 [2023-08-26 09:15:46,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:46,649 INFO L124 PetriNetUnfolderBase]: 65/134 cut-off events. [2023-08-26 09:15:46,649 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-26 09:15:46,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 134 events. 65/134 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 444 event pairs, 45 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 218. Up to 117 conditions per place. [2023-08-26 09:15:46,650 INFO L140 encePairwiseOnDemand]: 431/463 looper letters, 17 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-08-26 09:15:46,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 88 flow [2023-08-26 09:15:46,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 09:15:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 09:15:46,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 423 transitions. [2023-08-26 09:15:46,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45680345572354214 [2023-08-26 09:15:46,661 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 423 transitions. [2023-08-26 09:15:46,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 423 transitions. [2023-08-26 09:15:46,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:46,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 423 transitions. [2023-08-26 09:15:46,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,669 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,670 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 118 flow. Second operand 2 states and 423 transitions. [2023-08-26 09:15:46,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 88 flow [2023-08-26 09:15:46,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:15:46,674 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 46 flow [2023-08-26 09:15:46,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2023-08-26 09:15:46,677 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -33 predicate places. [2023-08-26 09:15:46,677 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 46 flow [2023-08-26 09:15:46,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:46,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 09:15:46,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 09:15:46,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:46,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash 26778041, now seen corresponding path program 1 times [2023-08-26 09:15:46,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:46,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440096012] [2023-08-26 09:15:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:46,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:46,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440096012] [2023-08-26 09:15:46,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440096012] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:46,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:46,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:15:46,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651412920] [2023-08-26 09:15:46,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:46,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:15:46,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:46,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:15:46,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:15:46,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 463 [2023-08-26 09:15:46,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:46,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 463 [2023-08-26 09:15:46,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:46,778 INFO L124 PetriNetUnfolderBase]: 101/178 cut-off events. [2023-08-26 09:15:46,779 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 09:15:46,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 178 events. 101/178 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 522 event pairs, 32 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 363. Up to 173 conditions per place. [2023-08-26 09:15:46,780 INFO L140 encePairwiseOnDemand]: 459/463 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-26 09:15:46,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 24 transitions, 101 flow [2023-08-26 09:15:46,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:15:46,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:15:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-08-26 09:15:46,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4031677465802736 [2023-08-26 09:15:46,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-08-26 09:15:46,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-08-26 09:15:46,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:46,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-08-26 09:15:46,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,796 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 46 flow. Second operand 3 states and 560 transitions. [2023-08-26 09:15:46,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 24 transitions, 101 flow [2023-08-26 09:15:46,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 101 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:15:46,797 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 56 flow [2023-08-26 09:15:46,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-08-26 09:15:46,797 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -32 predicate places. [2023-08-26 09:15:46,798 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 56 flow [2023-08-26 09:15:46,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:46,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:46,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 09:15:46,798 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:46,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:46,799 INFO L85 PathProgramCache]: Analyzing trace with hash 454438028, now seen corresponding path program 1 times [2023-08-26 09:15:46,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:46,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422868645] [2023-08-26 09:15:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:46,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:46,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:46,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422868645] [2023-08-26 09:15:46,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422868645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:46,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:46,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 09:15:46,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171050133] [2023-08-26 09:15:46,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:46,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:15:46,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:46,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:15:46,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:15:46,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-26 09:15:46,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:46,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:46,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-26 09:15:46,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:46,997 INFO L124 PetriNetUnfolderBase]: 104/202 cut-off events. [2023-08-26 09:15:46,997 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-26 09:15:46,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 202 events. 104/202 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 643 event pairs, 20 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 438. Up to 131 conditions per place. [2023-08-26 09:15:46,998 INFO L140 encePairwiseOnDemand]: 459/463 looper letters, 27 selfloop transitions, 3 changer transitions 1/33 dead transitions. [2023-08-26 09:15:46,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 149 flow [2023-08-26 09:15:46,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:15:46,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:15:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2023-08-26 09:15:46,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41252699784017277 [2023-08-26 09:15:46,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2023-08-26 09:15:47,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2023-08-26 09:15:47,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:47,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2023-08-26 09:15:47,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,003 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 56 flow. Second operand 3 states and 573 transitions. [2023-08-26 09:15:47,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 149 flow [2023-08-26 09:15:47,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 33 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:15:47,004 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 75 flow [2023-08-26 09:15:47,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2023-08-26 09:15:47,005 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -29 predicate places. [2023-08-26 09:15:47,005 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 75 flow [2023-08-26 09:15:47,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:47,006 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:47,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 09:15:47,006 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:47,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1120087099, now seen corresponding path program 1 times [2023-08-26 09:15:47,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:47,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87859766] [2023-08-26 09:15:47,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:47,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:47,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:47,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87859766] [2023-08-26 09:15:47,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87859766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:47,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:47,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:47,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368365771] [2023-08-26 09:15:47,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:47,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:15:47,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:47,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:15:47,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:15:47,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-26 09:15:47,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:47,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-26 09:15:47,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:47,167 INFO L124 PetriNetUnfolderBase]: 116/226 cut-off events. [2023-08-26 09:15:47,167 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-08-26 09:15:47,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 226 events. 116/226 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 778 event pairs, 15 based on Foata normal form. 2/227 useless extension candidates. Maximal degree in co-relation 541. Up to 87 conditions per place. [2023-08-26 09:15:47,169 INFO L140 encePairwiseOnDemand]: 456/463 looper letters, 36 selfloop transitions, 10 changer transitions 4/52 dead transitions. [2023-08-26 09:15:47,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 52 transitions, 255 flow [2023-08-26 09:15:47,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 883 transitions. [2023-08-26 09:15:47,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38142548596112313 [2023-08-26 09:15:47,171 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 883 transitions. [2023-08-26 09:15:47,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 883 transitions. [2023-08-26 09:15:47,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:47,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 883 transitions. [2023-08-26 09:15:47,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,176 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,176 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 75 flow. Second operand 5 states and 883 transitions. [2023-08-26 09:15:47,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 52 transitions, 255 flow [2023-08-26 09:15:47,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 52 transitions, 251 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:15:47,177 INFO L231 Difference]: Finished difference. Result has 32 places, 31 transitions, 137 flow [2023-08-26 09:15:47,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=32, PETRI_TRANSITIONS=31} [2023-08-26 09:15:47,178 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -24 predicate places. [2023-08-26 09:15:47,178 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 31 transitions, 137 flow [2023-08-26 09:15:47,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:47,179 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:47,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 09:15:47,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:47,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:47,179 INFO L85 PathProgramCache]: Analyzing trace with hash 236316549, now seen corresponding path program 2 times [2023-08-26 09:15:47,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:47,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152570083] [2023-08-26 09:15:47,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:47,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:47,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:47,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152570083] [2023-08-26 09:15:47,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152570083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:47,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:47,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470157814] [2023-08-26 09:15:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:47,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:15:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:15:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:15:47,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-26 09:15:47,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:47,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-26 09:15:47,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:47,313 INFO L124 PetriNetUnfolderBase]: 139/275 cut-off events. [2023-08-26 09:15:47,313 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2023-08-26 09:15:47,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 275 events. 139/275 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1038 event pairs, 18 based on Foata normal form. 12/286 useless extension candidates. Maximal degree in co-relation 780. Up to 126 conditions per place. [2023-08-26 09:15:47,315 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 39 selfloop transitions, 9 changer transitions 3/53 dead transitions. [2023-08-26 09:15:47,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 53 transitions, 312 flow [2023-08-26 09:15:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 881 transitions. [2023-08-26 09:15:47,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38056155507559397 [2023-08-26 09:15:47,318 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 881 transitions. [2023-08-26 09:15:47,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 881 transitions. [2023-08-26 09:15:47,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:47,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 881 transitions. [2023-08-26 09:15:47,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,323 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,323 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 137 flow. Second operand 5 states and 881 transitions. [2023-08-26 09:15:47,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 53 transitions, 312 flow [2023-08-26 09:15:47,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 53 transitions, 312 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:15:47,325 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 179 flow [2023-08-26 09:15:47,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-08-26 09:15:47,326 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -18 predicate places. [2023-08-26 09:15:47,326 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 179 flow [2023-08-26 09:15:47,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:47,327 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:47,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 09:15:47,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:47,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:47,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1808058285, now seen corresponding path program 1 times [2023-08-26 09:15:47,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:47,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795544080] [2023-08-26 09:15:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:47,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:47,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:47,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795544080] [2023-08-26 09:15:47,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795544080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:47,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:47,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:47,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956991346] [2023-08-26 09:15:47,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:47,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:15:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:47,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:15:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:15:47,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-26 09:15:47,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:47,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-26 09:15:47,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:47,471 INFO L124 PetriNetUnfolderBase]: 143/281 cut-off events. [2023-08-26 09:15:47,472 INFO L125 PetriNetUnfolderBase]: For 393/397 co-relation queries the response was YES. [2023-08-26 09:15:47,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 281 events. 143/281 cut-off events. For 393/397 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1032 event pairs, 15 based on Foata normal form. 8/288 useless extension candidates. Maximal degree in co-relation 901. Up to 174 conditions per place. [2023-08-26 09:15:47,473 INFO L140 encePairwiseOnDemand]: 456/463 looper letters, 39 selfloop transitions, 9 changer transitions 6/56 dead transitions. [2023-08-26 09:15:47,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 56 transitions, 368 flow [2023-08-26 09:15:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:47,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 879 transitions. [2023-08-26 09:15:47,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3796976241900648 [2023-08-26 09:15:47,475 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 879 transitions. [2023-08-26 09:15:47,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 879 transitions. [2023-08-26 09:15:47,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:47,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 879 transitions. [2023-08-26 09:15:47,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,480 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,480 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 179 flow. Second operand 5 states and 879 transitions. [2023-08-26 09:15:47,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 56 transitions, 368 flow [2023-08-26 09:15:47,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 356 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-26 09:15:47,483 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 214 flow [2023-08-26 09:15:47,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2023-08-26 09:15:47,483 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -14 predicate places. [2023-08-26 09:15:47,483 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 214 flow [2023-08-26 09:15:47,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:47,484 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:47,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 09:15:47,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:47,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1716462719, now seen corresponding path program 2 times [2023-08-26 09:15:47,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:47,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341630766] [2023-08-26 09:15:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:47,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:47,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:47,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341630766] [2023-08-26 09:15:47,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341630766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:47,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:47,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:47,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253156431] [2023-08-26 09:15:47,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:47,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:15:47,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:47,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:15:47,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:15:47,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-26 09:15:47,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:47,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-26 09:15:47,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:47,699 INFO L124 PetriNetUnfolderBase]: 151/292 cut-off events. [2023-08-26 09:15:47,699 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2023-08-26 09:15:47,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 292 events. 151/292 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 991 event pairs, 21 based on Foata normal form. 10/301 useless extension candidates. Maximal degree in co-relation 1006. Up to 203 conditions per place. [2023-08-26 09:15:47,701 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 39 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2023-08-26 09:15:47,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 359 flow [2023-08-26 09:15:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 872 transitions. [2023-08-26 09:15:47,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37667386609071274 [2023-08-26 09:15:47,703 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 872 transitions. [2023-08-26 09:15:47,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 872 transitions. [2023-08-26 09:15:47,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:47,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 872 transitions. [2023-08-26 09:15:47,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 174.4) internal successors, (872), 5 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,707 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,707 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 214 flow. Second operand 5 states and 872 transitions. [2023-08-26 09:15:47,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 359 flow [2023-08-26 09:15:47,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 351 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-26 09:15:47,710 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 246 flow [2023-08-26 09:15:47,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=246, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-08-26 09:15:47,711 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-08-26 09:15:47,712 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 246 flow [2023-08-26 09:15:47,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:47,714 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:47,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 09:15:47,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:47,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1705559524, now seen corresponding path program 1 times [2023-08-26 09:15:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:47,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410680379] [2023-08-26 09:15:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:47,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-26 09:15:47,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:47,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410680379] [2023-08-26 09:15:47,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410680379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:47,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:47,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:47,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490017788] [2023-08-26 09:15:47,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:47,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 09:15:47,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:47,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 09:15:47,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 09:15:47,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-26 09:15:47,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:47,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:47,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-26 09:15:47,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:48,023 INFO L124 PetriNetUnfolderBase]: 208/405 cut-off events. [2023-08-26 09:15:48,023 INFO L125 PetriNetUnfolderBase]: For 1033/1033 co-relation queries the response was YES. [2023-08-26 09:15:48,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 405 events. 208/405 cut-off events. For 1033/1033 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1569 event pairs, 78 based on Foata normal form. 1/405 useless extension candidates. Maximal degree in co-relation 1497. Up to 160 conditions per place. [2023-08-26 09:15:48,025 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 31 selfloop transitions, 17 changer transitions 17/67 dead transitions. [2023-08-26 09:15:48,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 67 transitions, 553 flow [2023-08-26 09:15:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:48,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:48,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 947 transitions. [2023-08-26 09:15:48,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4090712742980562 [2023-08-26 09:15:48,028 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 947 transitions. [2023-08-26 09:15:48,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 947 transitions. [2023-08-26 09:15:48,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:48,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 947 transitions. [2023-08-26 09:15:48,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.4) internal successors, (947), 5 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,033 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,033 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 246 flow. Second operand 5 states and 947 transitions. [2023-08-26 09:15:48,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 67 transitions, 553 flow [2023-08-26 09:15:48,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 67 transitions, 528 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-26 09:15:48,037 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 333 flow [2023-08-26 09:15:48,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=333, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2023-08-26 09:15:48,039 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2023-08-26 09:15:48,039 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 333 flow [2023-08-26 09:15:48,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:48,040 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:48,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 09:15:48,040 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:48,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:48,040 INFO L85 PathProgramCache]: Analyzing trace with hash 703931846, now seen corresponding path program 2 times [2023-08-26 09:15:48,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:48,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658499259] [2023-08-26 09:15:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:48,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:48,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:48,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:48,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658499259] [2023-08-26 09:15:48,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658499259] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:48,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466482317] [2023-08-26 09:15:48,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 09:15:48,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:48,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:48,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:15:48,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 09:15:48,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 09:15:48,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:15:48,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-26 09:15:48,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:15:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:48,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:15:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:48,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466482317] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:15:48,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:15:48,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-08-26 09:15:48,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981485711] [2023-08-26 09:15:48,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:15:48,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 09:15:48,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:48,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 09:15:48,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 09:15:48,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-26 09:15:48,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 333 flow. Second operand has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:48,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-26 09:15:48,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:48,551 INFO L124 PetriNetUnfolderBase]: 226/439 cut-off events. [2023-08-26 09:15:48,551 INFO L125 PetriNetUnfolderBase]: For 1641/1641 co-relation queries the response was YES. [2023-08-26 09:15:48,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 439 events. 226/439 cut-off events. For 1641/1641 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1737 event pairs, 70 based on Foata normal form. 1/439 useless extension candidates. Maximal degree in co-relation 1844. Up to 253 conditions per place. [2023-08-26 09:15:48,553 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 43 selfloop transitions, 16 changer transitions 5/66 dead transitions. [2023-08-26 09:15:48,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 629 flow [2023-08-26 09:15:48,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 943 transitions. [2023-08-26 09:15:48,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40734341252699785 [2023-08-26 09:15:48,556 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 943 transitions. [2023-08-26 09:15:48,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 943 transitions. [2023-08-26 09:15:48,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:48,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 943 transitions. [2023-08-26 09:15:48,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,560 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,560 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 333 flow. Second operand 5 states and 943 transitions. [2023-08-26 09:15:48,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 629 flow [2023-08-26 09:15:48,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 591 flow, removed 15 selfloop flow, removed 2 redundant places. [2023-08-26 09:15:48,563 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 460 flow [2023-08-26 09:15:48,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=460, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2023-08-26 09:15:48,564 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2023-08-26 09:15:48,564 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 460 flow [2023-08-26 09:15:48,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:48,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:48,564 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:48,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 09:15:48,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:48,770 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-26 09:15:48,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:48,770 INFO L85 PathProgramCache]: Analyzing trace with hash 82166610, now seen corresponding path program 3 times [2023-08-26 09:15:48,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222541122] [2023-08-26 09:15:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 09:15:48,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222541122] [2023-08-26 09:15:48,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222541122] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820787468] [2023-08-26 09:15:48,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 09:15:48,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:48,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:48,903 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:15:48,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 09:15:48,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 09:15:48,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:15:48,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-26 09:15:48,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:15:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 09:15:49,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:15:49,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 09:15:49,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820787468] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:15:49,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:15:49,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-08-26 09:15:49,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826231728] [2023-08-26 09:15:49,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:15:49,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:15:49,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:49,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:15:49,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:15:49,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-26 09:15:49,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 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) [2023-08-26 09:15:49,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:49,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-26 09:15:49,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:49,183 INFO L124 PetriNetUnfolderBase]: 223/441 cut-off events. [2023-08-26 09:15:49,184 INFO L125 PetriNetUnfolderBase]: For 1929/1929 co-relation queries the response was YES. [2023-08-26 09:15:49,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1957 conditions, 441 events. 223/441 cut-off events. For 1929/1929 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1827 event pairs, 78 based on Foata normal form. 1/441 useless extension candidates. Maximal degree in co-relation 1934. Up to 242 conditions per place. [2023-08-26 09:15:49,185 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2023-08-26 09:15:49,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 666 flow [2023-08-26 09:15:49,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:15:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:15:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1118 transitions. [2023-08-26 09:15:49,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40244780417566595 [2023-08-26 09:15:49,205 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1118 transitions. [2023-08-26 09:15:49,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1118 transitions. [2023-08-26 09:15:49,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:49,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1118 transitions. [2023-08-26 09:15:49,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:49,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:49,210 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:49,210 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 460 flow. Second operand 6 states and 1118 transitions. [2023-08-26 09:15:49,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 666 flow [2023-08-26 09:15:49,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 650 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-08-26 09:15:49,215 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2023-08-26 09:15:49,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2023-08-26 09:15:49,215 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2023-08-26 09:15:49,215 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2023-08-26 09:15:49,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 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) [2023-08-26 09:15:49,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (54 of 55 remaining) [2023-08-26 09:15:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2023-08-26 09:15:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2023-08-26 09:15:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2023-08-26 09:15:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2023-08-26 09:15:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2023-08-26 09:15:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2023-08-26 09:15:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2023-08-26 09:15:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2023-08-26 09:15:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (22 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 55 remaining) [2023-08-26 09:15:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2023-08-26 09:15:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2023-08-26 09:15:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2023-08-26 09:15:49,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-26 09:15:49,428 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,SelfDestructingSolverStorable9 [2023-08-26 09:15:49,429 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1] [2023-08-26 09:15:49,432 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 09:15:49,432 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 09:15:49,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:15:49 BasicIcfg [2023-08-26 09:15:49,435 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 09:15:49,435 INFO L158 Benchmark]: Toolchain (without parser) took 8161.12ms. Allocated memory was 360.7MB in the beginning and 576.7MB in the end (delta: 216.0MB). Free memory was 337.9MB in the beginning and 536.3MB in the end (delta: -198.4MB). Peak memory consumption was 281.7MB. Max. memory is 16.0GB. [2023-08-26 09:15:49,435 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 360.7MB. Free memory is still 337.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 09:15:49,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.01ms. Allocated memory is still 360.7MB. Free memory was 337.4MB in the beginning and 326.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 09:15:49,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.03ms. Allocated memory is still 360.7MB. Free memory was 326.4MB in the beginning and 324.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 09:15:49,436 INFO L158 Benchmark]: Boogie Preprocessor took 26.01ms. Allocated memory is still 360.7MB. Free memory was 324.3MB in the beginning and 322.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 09:15:49,436 INFO L158 Benchmark]: RCFGBuilder took 488.44ms. Allocated memory is still 360.7MB. Free memory was 322.7MB in the beginning and 299.1MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-26 09:15:49,436 INFO L158 Benchmark]: TraceAbstraction took 7405.70ms. Allocated memory was 360.7MB in the beginning and 576.7MB in the end (delta: 216.0MB). Free memory was 298.1MB in the beginning and 536.3MB in the end (delta: -238.2MB). Peak memory consumption was 241.9MB. Max. memory is 16.0GB. [2023-08-26 09:15:49,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 360.7MB. Free memory is still 337.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 193.01ms. Allocated memory is still 360.7MB. Free memory was 337.4MB in the beginning and 326.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.03ms. Allocated memory is still 360.7MB. Free memory was 326.4MB in the beginning and 324.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.01ms. Allocated memory is still 360.7MB. Free memory was 324.3MB in the beginning and 322.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 488.44ms. Allocated memory is still 360.7MB. Free memory was 322.7MB in the beginning and 299.1MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 7405.70ms. Allocated memory was 360.7MB in the beginning and 576.7MB in the end (delta: 216.0MB). Free memory was 298.1MB in the beginning and 536.3MB in the end (delta: -238.2MB). Peak memory consumption was 241.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 196 PlacesBefore, 56 PlacesAfterwards, 197 TransitionsBefore, 53 TransitionsAfterwards, 5616 CoEnabledTransitionPairs, 10 FixpointIterations, 119 TrivialSequentialCompositions, 112 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 255 TotalNumberOfCompositions, 15387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8995, independent: 8579, independent conditional: 0, independent unconditional: 8579, dependent: 416, dependent conditional: 0, dependent unconditional: 416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3331, independent: 3272, independent conditional: 0, independent unconditional: 3272, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8995, independent: 5307, independent conditional: 0, independent unconditional: 5307, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 3331, unknown conditional: 0, unknown unconditional: 3331] , Statistics on independence cache: Total cache size (in pairs): 295, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 279 locations, 55 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: 7.2s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 644 IncrementalHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 0 mSDtfsCounter, 644 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=9, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 1816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 380 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 27/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 09:15:49,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...