/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:42:42,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:42:43,039 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 19:42:43,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:42:43,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:42:43,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:42:43,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:42:43,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:42:43,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:42:43,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:42:43,065 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:42:43,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:42:43,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:42:43,066 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:42:43,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:42:43,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:42:43,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:42:43,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:42:43,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:42:43,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:42:43,068 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:42:43,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:42:43,069 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:42:43,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:42:43,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:42:43,070 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:42:43,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:42:43,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:42:43,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:42:43,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:42:43,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:42:43,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:42:43,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:42:43,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:42:43,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:42:43,074 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:42:43,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:42:43,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:42:43,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:42:43,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:42:43,357 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:42:43,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2023-08-25 19:42:44,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:42:44,789 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:42:44,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2023-08-25 19:42:44,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f5f99a70/0e97a83d491e471da086207d6239f8ff/FLAG10f4dd4ac [2023-08-25 19:42:44,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f5f99a70/0e97a83d491e471da086207d6239f8ff [2023-08-25 19:42:44,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:42:44,818 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:42:44,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:42:44,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:42:44,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:42:44,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:42:44" (1/1) ... [2023-08-25 19:42:44,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2edc3a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:44, skipping insertion in model container [2023-08-25 19:42:44,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:42:44" (1/1) ... [2023-08-25 19:42:44,844 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:42:44,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:42:44,985 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:42:45,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:42:45,016 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:42:45,017 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:42:45,022 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:42:45,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45 WrapperNode [2023-08-25 19:42:45,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:42:45,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:42:45,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:42:45,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:42:45,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,058 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 130 [2023-08-25 19:42:45,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:42:45,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:42:45,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:42:45,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:42:45,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:42:45,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:42:45,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:42:45,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:42:45,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (1/1) ... [2023-08-25 19:42:45,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:42:45,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:45,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 19:42:45,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 19:42:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:42:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:42:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:42:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:42:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:42:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:42:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:42:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:42:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:42:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:42:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 19:42:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 19:42:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:42:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:42:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:42:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:42:45,210 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 19:42:45,333 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:42:45,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:42:45,630 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:42:45,712 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:42:45,712 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 19:42:45,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:42:45 BoogieIcfgContainer [2023-08-25 19:42:45,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:42:45,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:42:45,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:42:45,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:42:45,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:42:44" (1/3) ... [2023-08-25 19:42:45,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b3e011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:42:45, skipping insertion in model container [2023-08-25 19:42:45,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:45" (2/3) ... [2023-08-25 19:42:45,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b3e011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:42:45, skipping insertion in model container [2023-08-25 19:42:45,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:42:45" (3/3) ... [2023-08-25 19:42:45,724 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2023-08-25 19:42:45,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:42:45,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 19:42:45,741 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:42:45,828 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 19:42:45,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 209 transitions, 442 flow [2023-08-25 19:42:45,959 INFO L124 PetriNetUnfolderBase]: 10/206 cut-off events. [2023-08-25 19:42:45,959 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:42:45,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 206 events. 10/206 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 301 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2023-08-25 19:42:45,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 209 transitions, 442 flow [2023-08-25 19:42:45,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 195 transitions, 408 flow [2023-08-25 19:42:45,977 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:42:45,994 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 195 transitions, 408 flow [2023-08-25 19:42:46,000 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 195 transitions, 408 flow [2023-08-25 19:42:46,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 195 transitions, 408 flow [2023-08-25 19:42:46,058 INFO L124 PetriNetUnfolderBase]: 10/195 cut-off events. [2023-08-25 19:42:46,058 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:42:46,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 195 events. 10/195 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 300 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2023-08-25 19:42:46,064 INFO L119 LiptonReduction]: Number of co-enabled transitions 5142 [2023-08-25 19:42:53,561 INFO L134 LiptonReduction]: Checked pairs total: 7458 [2023-08-25 19:42:53,562 INFO L136 LiptonReduction]: Total number of compositions: 247 [2023-08-25 19:42:53,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:42:53,593 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;@33611bbf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:42:53,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-08-25 19:42:53,597 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:42:53,597 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:42:53,597 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:42:53,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:53,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:42:53,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:53,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash 893, now seen corresponding path program 1 times [2023-08-25 19:42:53,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:53,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949678948] [2023-08-25 19:42:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:53,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:53,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:53,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949678948] [2023-08-25 19:42:53,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949678948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:53,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:53,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:42:53,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408759990] [2023-08-25 19:42:53,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:53,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:42:53,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:53,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:42:53,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:42:53,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 456 [2023-08-25 19:42:53,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 126 flow. Second operand has 2 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:53,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:53,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 456 [2023-08-25 19:42:53,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:53,849 INFO L124 PetriNetUnfolderBase]: 227/354 cut-off events. [2023-08-25 19:42:53,849 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-25 19:42:53,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 354 events. 227/354 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1002 event pairs, 173 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 648. Up to 355 conditions per place. [2023-08-25 19:42:53,855 INFO L140 encePairwiseOnDemand]: 424/456 looper letters, 22 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2023-08-25 19:42:53,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 106 flow [2023-08-25 19:42:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:42:53,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:42:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 406 transitions. [2023-08-25 19:42:53,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451754385964912 [2023-08-25 19:42:53,875 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 406 transitions. [2023-08-25 19:42:53,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 406 transitions. [2023-08-25 19:42:53,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:53,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 406 transitions. [2023-08-25 19:42:53,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 203.0) internal successors, (406), 2 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:53,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:53,890 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:53,892 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 126 flow. Second operand 2 states and 406 transitions. [2023-08-25 19:42:53,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 106 flow [2023-08-25 19:42:53,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 94 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 19:42:53,898 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 50 flow [2023-08-25 19:42:53,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-08-25 19:42:53,903 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -37 predicate places. [2023-08-25 19:42:53,903 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 50 flow [2023-08-25 19:42:53,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:53,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:53,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:53,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:42:53,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:53,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:53,913 INFO L85 PathProgramCache]: Analyzing trace with hash 354493491, now seen corresponding path program 1 times [2023-08-25 19:42:53,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:53,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048325596] [2023-08-25 19:42:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:54,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:54,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048325596] [2023-08-25 19:42:54,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048325596] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:54,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:54,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:42:54,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991699493] [2023-08-25 19:42:54,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:54,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:42:54,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:54,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:42:54,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:42:54,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 456 [2023-08-25 19:42:54,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:54,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 456 [2023-08-25 19:42:54,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:54,398 INFO L124 PetriNetUnfolderBase]: 171/270 cut-off events. [2023-08-25 19:42:54,398 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:42:54,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 270 events. 171/270 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 789 event pairs, 9 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 556. Up to 125 conditions per place. [2023-08-25 19:42:54,400 INFO L140 encePairwiseOnDemand]: 452/456 looper letters, 36 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-08-25 19:42:54,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 40 transitions, 168 flow [2023-08-25 19:42:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:42:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:42:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 725 transitions. [2023-08-25 19:42:54,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39747807017543857 [2023-08-25 19:42:54,402 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 725 transitions. [2023-08-25 19:42:54,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 725 transitions. [2023-08-25 19:42:54,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:54,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 725 transitions. [2023-08-25 19:42:54,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 181.25) internal successors, (725), 4 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 456.0) internal successors, (2280), 5 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,409 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 456.0) internal successors, (2280), 5 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,409 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 50 flow. Second operand 4 states and 725 transitions. [2023-08-25 19:42:54,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 40 transitions, 168 flow [2023-08-25 19:42:54,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 40 transitions, 165 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:42:54,410 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 68 flow [2023-08-25 19:42:54,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2023-08-25 19:42:54,411 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -33 predicate places. [2023-08-25 19:42:54,411 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 68 flow [2023-08-25 19:42:54,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:54,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:54,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:42:54,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:54,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:54,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1486457163, now seen corresponding path program 2 times [2023-08-25 19:42:54,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:54,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112326002] [2023-08-25 19:42:54,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:54,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:54,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:54,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112326002] [2023-08-25 19:42:54,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112326002] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:54,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:54,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:42:54,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121989033] [2023-08-25 19:42:54,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:54,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:42:54,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:42:54,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:42:54,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 456 [2023-08-25 19:42:54,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:54,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 456 [2023-08-25 19:42:54,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:54,646 INFO L124 PetriNetUnfolderBase]: 144/231 cut-off events. [2023-08-25 19:42:54,646 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-25 19:42:54,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 231 events. 144/231 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 579 event pairs, 14 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 538. Up to 119 conditions per place. [2023-08-25 19:42:54,648 INFO L140 encePairwiseOnDemand]: 452/456 looper letters, 32 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2023-08-25 19:42:54,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 181 flow [2023-08-25 19:42:54,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:42:54,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:42:54,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 721 transitions. [2023-08-25 19:42:54,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39528508771929827 [2023-08-25 19:42:54,655 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 721 transitions. [2023-08-25 19:42:54,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 721 transitions. [2023-08-25 19:42:54,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:54,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 721 transitions. [2023-08-25 19:42:54,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 180.25) internal successors, (721), 4 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 456.0) internal successors, (2280), 5 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,661 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 456.0) internal successors, (2280), 5 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,661 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 68 flow. Second operand 4 states and 721 transitions. [2023-08-25 19:42:54,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 181 flow [2023-08-25 19:42:54,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:42:54,664 INFO L231 Difference]: Finished difference. Result has 33 places, 27 transitions, 96 flow [2023-08-25 19:42:54,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2023-08-25 19:42:54,665 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -29 predicate places. [2023-08-25 19:42:54,666 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 96 flow [2023-08-25 19:42:54,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:54,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:54,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:42:54,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:54,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:54,671 INFO L85 PathProgramCache]: Analyzing trace with hash -854452365, now seen corresponding path program 3 times [2023-08-25 19:42:54,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:54,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724392858] [2023-08-25 19:42:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:54,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:54,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:54,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724392858] [2023-08-25 19:42:54,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724392858] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:54,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:54,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:42:54,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551667528] [2023-08-25 19:42:54,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:54,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:42:54,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:54,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:42:54,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:42:54,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 456 [2023-08-25 19:42:54,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 174.6) internal successors, (873), 5 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:54,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:54,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 456 [2023-08-25 19:42:54,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:55,002 INFO L124 PetriNetUnfolderBase]: 156/251 cut-off events. [2023-08-25 19:42:55,002 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-08-25 19:42:55,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 251 events. 156/251 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 695 event pairs, 12 based on Foata normal form. 8/259 useless extension candidates. Maximal degree in co-relation 645. Up to 88 conditions per place. [2023-08-25 19:42:55,005 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 38 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-08-25 19:42:55,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 236 flow [2023-08-25 19:42:55,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:42:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:42:55,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 900 transitions. [2023-08-25 19:42:55,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39473684210526316 [2023-08-25 19:42:55,008 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 900 transitions. [2023-08-25 19:42:55,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 900 transitions. [2023-08-25 19:42:55,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:55,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 900 transitions. [2023-08-25 19:42:55,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,016 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,017 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 96 flow. Second operand 5 states and 900 transitions. [2023-08-25 19:42:55,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 236 flow [2023-08-25 19:42:55,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 231 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:42:55,018 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 126 flow [2023-08-25 19:42:55,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-08-25 19:42:55,019 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -24 predicate places. [2023-08-25 19:42:55,019 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 126 flow [2023-08-25 19:42:55,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 174.6) internal successors, (873), 5 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:55,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:55,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:42:55,021 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:55,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:55,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1303457839, now seen corresponding path program 4 times [2023-08-25 19:42:55,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:55,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156353781] [2023-08-25 19:42:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:55,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:55,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156353781] [2023-08-25 19:42:55,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156353781] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:55,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:55,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:42:55,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798634249] [2023-08-25 19:42:55,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:55,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:42:55,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:55,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:42:55,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:42:55,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 456 [2023-08-25 19:42:55,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 171.6) internal successors, (858), 5 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:55,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 456 [2023-08-25 19:42:55,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:55,321 INFO L124 PetriNetUnfolderBase]: 263/424 cut-off events. [2023-08-25 19:42:55,322 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2023-08-25 19:42:55,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 424 events. 263/424 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1394 event pairs, 25 based on Foata normal form. 14/438 useless extension candidates. Maximal degree in co-relation 1237. Up to 246 conditions per place. [2023-08-25 19:42:55,324 INFO L140 encePairwiseOnDemand]: 449/456 looper letters, 34 selfloop transitions, 3 changer transitions 30/67 dead transitions. [2023-08-25 19:42:55,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 67 transitions, 408 flow [2023-08-25 19:42:55,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:42:55,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:42:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1236 transitions. [2023-08-25 19:42:55,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38721804511278196 [2023-08-25 19:42:55,328 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1236 transitions. [2023-08-25 19:42:55,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1236 transitions. [2023-08-25 19:42:55,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:55,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1236 transitions. [2023-08-25 19:42:55,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 176.57142857142858) internal successors, (1236), 7 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 456.0) internal successors, (3648), 8 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,337 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 456.0) internal successors, (3648), 8 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,338 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 126 flow. Second operand 7 states and 1236 transitions. [2023-08-25 19:42:55,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 67 transitions, 408 flow [2023-08-25 19:42:55,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 67 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:42:55,341 INFO L231 Difference]: Finished difference. Result has 47 places, 30 transitions, 155 flow [2023-08-25 19:42:55,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=155, PETRI_PLACES=47, PETRI_TRANSITIONS=30} [2023-08-25 19:42:55,342 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -15 predicate places. [2023-08-25 19:42:55,342 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 30 transitions, 155 flow [2023-08-25 19:42:55,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 171.6) internal successors, (858), 5 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:55,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:55,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:42:55,343 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:55,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:55,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1368423789, now seen corresponding path program 1 times [2023-08-25 19:42:55,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:55,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099077158] [2023-08-25 19:42:55,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:55,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:55,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:55,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099077158] [2023-08-25 19:42:55,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099077158] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108845035] [2023-08-25 19:42:55,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:55,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:55,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:55,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:42:55,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 19:42:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:55,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 19:42:55,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:55,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 19:42:55,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108845035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:55,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 19:42:55,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-08-25 19:42:55,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818709008] [2023-08-25 19:42:55,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:55,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:42:55,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:55,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:42:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:42:55,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 456 [2023-08-25 19:42:55,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 30 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:55,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 456 [2023-08-25 19:42:55,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:55,819 INFO L124 PetriNetUnfolderBase]: 208/339 cut-off events. [2023-08-25 19:42:55,819 INFO L125 PetriNetUnfolderBase]: For 685/685 co-relation queries the response was YES. [2023-08-25 19:42:55,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 339 events. 208/339 cut-off events. For 685/685 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 988 event pairs, 33 based on Foata normal form. 12/351 useless extension candidates. Maximal degree in co-relation 1233. Up to 132 conditions per place. [2023-08-25 19:42:55,822 INFO L140 encePairwiseOnDemand]: 451/456 looper letters, 45 selfloop transitions, 6 changer transitions 0/51 dead transitions. [2023-08-25 19:42:55,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 51 transitions, 368 flow [2023-08-25 19:42:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:42:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:42:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 901 transitions. [2023-08-25 19:42:55,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39517543859649124 [2023-08-25 19:42:55,826 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 901 transitions. [2023-08-25 19:42:55,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 901 transitions. [2023-08-25 19:42:55,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:55,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 901 transitions. [2023-08-25 19:42:55,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.2) internal successors, (901), 5 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,832 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,832 INFO L175 Difference]: Start difference. First operand has 47 places, 30 transitions, 155 flow. Second operand 5 states and 901 transitions. [2023-08-25 19:42:55,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 51 transitions, 368 flow [2023-08-25 19:42:55,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 51 transitions, 348 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-25 19:42:55,841 INFO L231 Difference]: Finished difference. Result has 45 places, 31 transitions, 165 flow [2023-08-25 19:42:55,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=165, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2023-08-25 19:42:55,843 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -17 predicate places. [2023-08-25 19:42:55,843 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 165 flow [2023-08-25 19:42:55,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:55,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:55,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:55,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 19:42:56,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-25 19:42:56,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:56,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash 394930547, now seen corresponding path program 2 times [2023-08-25 19:42:56,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:56,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347965991] [2023-08-25 19:42:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:56,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:56,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:56,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347965991] [2023-08-25 19:42:56,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347965991] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:56,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:56,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:42:56,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953846075] [2023-08-25 19:42:56,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:56,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:42:56,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:56,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:42:56,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:42:56,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 456 [2023-08-25 19:42:56,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:56,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 456 [2023-08-25 19:42:56,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:56,452 INFO L124 PetriNetUnfolderBase]: 354/581 cut-off events. [2023-08-25 19:42:56,453 INFO L125 PetriNetUnfolderBase]: For 1275/1275 co-relation queries the response was YES. [2023-08-25 19:42:56,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 581 events. 354/581 cut-off events. For 1275/1275 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2136 event pairs, 33 based on Foata normal form. 20/601 useless extension candidates. Maximal degree in co-relation 2200. Up to 312 conditions per place. [2023-08-25 19:42:56,457 INFO L140 encePairwiseOnDemand]: 449/456 looper letters, 42 selfloop transitions, 5 changer transitions 38/85 dead transitions. [2023-08-25 19:42:56,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 85 transitions, 621 flow [2023-08-25 19:42:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:42:56,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:42:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1363 transitions. [2023-08-25 19:42:56,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3736293859649123 [2023-08-25 19:42:56,461 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1363 transitions. [2023-08-25 19:42:56,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1363 transitions. [2023-08-25 19:42:56,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:56,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1363 transitions. [2023-08-25 19:42:56,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 170.375) internal successors, (1363), 8 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 456.0) internal successors, (4104), 9 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,471 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 456.0) internal successors, (4104), 9 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,471 INFO L175 Difference]: Start difference. First operand has 45 places, 31 transitions, 165 flow. Second operand 8 states and 1363 transitions. [2023-08-25 19:42:56,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 85 transitions, 621 flow [2023-08-25 19:42:56,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 604 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 19:42:56,475 INFO L231 Difference]: Finished difference. Result has 54 places, 33 transitions, 215 flow [2023-08-25 19:42:56,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=215, PETRI_PLACES=54, PETRI_TRANSITIONS=33} [2023-08-25 19:42:56,476 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2023-08-25 19:42:56,476 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 33 transitions, 215 flow [2023-08-25 19:42:56,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:56,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:56,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:42:56,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:56,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2043897288, now seen corresponding path program 1 times [2023-08-25 19:42:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187857817] [2023-08-25 19:42:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:56,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:56,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:56,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187857817] [2023-08-25 19:42:56,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187857817] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:56,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:56,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:42:56,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827524562] [2023-08-25 19:42:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:56,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:42:56,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:56,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:42:56,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:42:56,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 456 [2023-08-25 19:42:56,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 33 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:56,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 456 [2023-08-25 19:42:56,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:56,849 INFO L124 PetriNetUnfolderBase]: 381/618 cut-off events. [2023-08-25 19:42:56,849 INFO L125 PetriNetUnfolderBase]: For 2815/2815 co-relation queries the response was YES. [2023-08-25 19:42:56,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2919 conditions, 618 events. 381/618 cut-off events. For 2815/2815 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2241 event pairs, 37 based on Foata normal form. 18/636 useless extension candidates. Maximal degree in co-relation 2900. Up to 364 conditions per place. [2023-08-25 19:42:56,854 INFO L140 encePairwiseOnDemand]: 449/456 looper letters, 42 selfloop transitions, 5 changer transitions 28/75 dead transitions. [2023-08-25 19:42:56,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 75 transitions, 670 flow [2023-08-25 19:42:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:42:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:42:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1361 transitions. [2023-08-25 19:42:56,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3730811403508772 [2023-08-25 19:42:56,859 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1361 transitions. [2023-08-25 19:42:56,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1361 transitions. [2023-08-25 19:42:56,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:56,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1361 transitions. [2023-08-25 19:42:56,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 170.125) internal successors, (1361), 8 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 456.0) internal successors, (4104), 9 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,869 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 456.0) internal successors, (4104), 9 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,869 INFO L175 Difference]: Start difference. First operand has 54 places, 33 transitions, 215 flow. Second operand 8 states and 1361 transitions. [2023-08-25 19:42:56,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 75 transitions, 670 flow [2023-08-25 19:42:56,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 75 transitions, 629 flow, removed 17 selfloop flow, removed 4 redundant places. [2023-08-25 19:42:56,877 INFO L231 Difference]: Finished difference. Result has 58 places, 35 transitions, 257 flow [2023-08-25 19:42:56,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=257, PETRI_PLACES=58, PETRI_TRANSITIONS=35} [2023-08-25 19:42:56,879 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2023-08-25 19:42:56,879 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 35 transitions, 257 flow [2023-08-25 19:42:56,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:56,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:56,880 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:56,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:42:56,881 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:56,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1909611609, now seen corresponding path program 3 times [2023-08-25 19:42:56,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:56,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369331231] [2023-08-25 19:42:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:56,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:57,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:57,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369331231] [2023-08-25 19:42:57,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369331231] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:57,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885999020] [2023-08-25 19:42:57,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:42:57,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:57,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:57,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:42:57,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 19:42:57,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-25 19:42:57,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:57,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-25 19:42:57,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:57,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:57,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885999020] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:57,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:57,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 14 [2023-08-25 19:42:57,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674879340] [2023-08-25 19:42:57,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:57,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-25 19:42:57,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:57,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-25 19:42:57,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-08-25 19:42:57,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 456 [2023-08-25 19:42:57,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 35 transitions, 257 flow. Second operand has 15 states, 15 states have (on average 162.53333333333333) internal successors, (2438), 15 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:57,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:57,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 456 [2023-08-25 19:42:57,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:58,538 INFO L124 PetriNetUnfolderBase]: 436/709 cut-off events. [2023-08-25 19:42:58,538 INFO L125 PetriNetUnfolderBase]: For 6251/6251 co-relation queries the response was YES. [2023-08-25 19:42:58,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3870 conditions, 709 events. 436/709 cut-off events. For 6251/6251 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2612 event pairs, 7 based on Foata normal form. 28/737 useless extension candidates. Maximal degree in co-relation 3848. Up to 221 conditions per place. [2023-08-25 19:42:58,544 INFO L140 encePairwiseOnDemand]: 446/456 looper letters, 95 selfloop transitions, 30 changer transitions 50/175 dead transitions. [2023-08-25 19:42:58,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 175 transitions, 1690 flow [2023-08-25 19:42:58,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-25 19:42:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-25 19:42:58,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4630 transitions. [2023-08-25 19:42:58,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.362625313283208 [2023-08-25 19:42:58,556 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4630 transitions. [2023-08-25 19:42:58,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4630 transitions. [2023-08-25 19:42:58,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:58,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4630 transitions. [2023-08-25 19:42:58,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 165.35714285714286) internal successors, (4630), 28 states have internal predecessors, (4630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 456.0) internal successors, (13224), 29 states have internal predecessors, (13224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,586 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 456.0) internal successors, (13224), 29 states have internal predecessors, (13224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,586 INFO L175 Difference]: Start difference. First operand has 58 places, 35 transitions, 257 flow. Second operand 28 states and 4630 transitions. [2023-08-25 19:42:58,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 175 transitions, 1690 flow [2023-08-25 19:42:58,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 175 transitions, 1499 flow, removed 91 selfloop flow, removed 6 redundant places. [2023-08-25 19:42:58,600 INFO L231 Difference]: Finished difference. Result has 84 places, 57 transitions, 589 flow [2023-08-25 19:42:58,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=589, PETRI_PLACES=84, PETRI_TRANSITIONS=57} [2023-08-25 19:42:58,601 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2023-08-25 19:42:58,601 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 57 transitions, 589 flow [2023-08-25 19:42:58,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 162.53333333333333) internal successors, (2438), 15 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:58,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:58,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 19:42:58,819 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,SelfDestructingSolverStorable8 [2023-08-25 19:42:58,820 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:42:58,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:58,820 INFO L85 PathProgramCache]: Analyzing trace with hash -546940224, now seen corresponding path program 1 times [2023-08-25 19:42:58,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:58,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800576548] [2023-08-25 19:42:58,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:59,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:59,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800576548] [2023-08-25 19:42:59,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800576548] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:59,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617958587] [2023-08-25 19:42:59,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:59,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:59,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:59,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:42:59,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 19:42:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:59,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 19:42:59,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:59,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:59,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617958587] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:59,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:59,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-08-25 19:42:59,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419178967] [2023-08-25 19:42:59,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:59,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-25 19:42:59,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:59,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-25 19:42:59,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-08-25 19:42:59,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 456 [2023-08-25 19:42:59,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 57 transitions, 589 flow. Second operand has 15 states, 15 states have (on average 159.33333333333334) internal successors, (2390), 15 states have internal predecessors, (2390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:59,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 456 [2023-08-25 19:42:59,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:01,032 INFO L124 PetriNetUnfolderBase]: 727/1180 cut-off events. [2023-08-25 19:43:01,032 INFO L125 PetriNetUnfolderBase]: For 11899/11899 co-relation queries the response was YES. [2023-08-25 19:43:01,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6831 conditions, 1180 events. 727/1180 cut-off events. For 11899/11899 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4956 event pairs, 11 based on Foata normal form. 40/1220 useless extension candidates. Maximal degree in co-relation 6804. Up to 363 conditions per place. [2023-08-25 19:43:01,043 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 133 selfloop transitions, 65 changer transitions 118/316 dead transitions. [2023-08-25 19:43:01,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 316 transitions, 3343 flow [2023-08-25 19:43:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-08-25 19:43:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-08-25 19:43:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 6361 transitions. [2023-08-25 19:43:01,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35768106162843005 [2023-08-25 19:43:01,060 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 6361 transitions. [2023-08-25 19:43:01,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 6361 transitions. [2023-08-25 19:43:01,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:01,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 6361 transitions. [2023-08-25 19:43:01,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 163.10256410256412) internal successors, (6361), 39 states have internal predecessors, (6361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 456.0) internal successors, (18240), 40 states have internal predecessors, (18240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,100 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 456.0) internal successors, (18240), 40 states have internal predecessors, (18240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,100 INFO L175 Difference]: Start difference. First operand has 84 places, 57 transitions, 589 flow. Second operand 39 states and 6361 transitions. [2023-08-25 19:43:01,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 316 transitions, 3343 flow [2023-08-25 19:43:01,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 316 transitions, 2142 flow, removed 502 selfloop flow, removed 20 redundant places. [2023-08-25 19:43:01,176 INFO L231 Difference]: Finished difference. Result has 105 places, 101 transitions, 743 flow [2023-08-25 19:43:01,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=743, PETRI_PLACES=105, PETRI_TRANSITIONS=101} [2023-08-25 19:43:01,177 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 43 predicate places. [2023-08-25 19:43:01,177 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 101 transitions, 743 flow [2023-08-25 19:43:01,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.33333333333334) internal successors, (2390), 15 states have internal predecessors, (2390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:01,178 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:01,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:01,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:01,385 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:01,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1645326059, now seen corresponding path program 2 times [2023-08-25 19:43:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:01,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852892384] [2023-08-25 19:43:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:01,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:01,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852892384] [2023-08-25 19:43:01,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852892384] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:01,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833749489] [2023-08-25 19:43:01,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:43:01,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:01,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:01,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:01,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 19:43:01,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:43:01,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:01,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-25 19:43:01,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:01,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:01,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833749489] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:01,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:01,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2023-08-25 19:43:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510956217] [2023-08-25 19:43:01,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:01,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-08-25 19:43:01,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:01,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-08-25 19:43:01,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-08-25 19:43:01,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 456 [2023-08-25 19:43:01,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 101 transitions, 743 flow. Second operand has 16 states, 16 states have (on average 163.3125) internal successors, (2613), 16 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:01,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 456 [2023-08-25 19:43:01,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:03,077 INFO L124 PetriNetUnfolderBase]: 874/1417 cut-off events. [2023-08-25 19:43:03,077 INFO L125 PetriNetUnfolderBase]: For 5333/5333 co-relation queries the response was YES. [2023-08-25 19:43:03,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6610 conditions, 1417 events. 874/1417 cut-off events. For 5333/5333 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6032 event pairs, 5 based on Foata normal form. 66/1483 useless extension candidates. Maximal degree in co-relation 6579. Up to 282 conditions per place. [2023-08-25 19:43:03,090 INFO L140 encePairwiseOnDemand]: 446/456 looper letters, 148 selfloop transitions, 86 changer transitions 88/322 dead transitions. [2023-08-25 19:43:03,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 322 transitions, 2900 flow [2023-08-25 19:43:03,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-08-25 19:43:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-08-25 19:43:03,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5834 transitions. [2023-08-25 19:43:03,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3655388471177945 [2023-08-25 19:43:03,099 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 5834 transitions. [2023-08-25 19:43:03,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 5834 transitions. [2023-08-25 19:43:03,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:03,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 5834 transitions. [2023-08-25 19:43:03,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 166.68571428571428) internal successors, (5834), 35 states have internal predecessors, (5834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 456.0) internal successors, (16416), 36 states have internal predecessors, (16416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,131 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 456.0) internal successors, (16416), 36 states have internal predecessors, (16416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,131 INFO L175 Difference]: Start difference. First operand has 105 places, 101 transitions, 743 flow. Second operand 35 states and 5834 transitions. [2023-08-25 19:43:03,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 322 transitions, 2900 flow [2023-08-25 19:43:03,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 322 transitions, 2616 flow, removed 142 selfloop flow, removed 7 redundant places. [2023-08-25 19:43:03,160 INFO L231 Difference]: Finished difference. Result has 133 places, 137 transitions, 1257 flow [2023-08-25 19:43:03,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1257, PETRI_PLACES=133, PETRI_TRANSITIONS=137} [2023-08-25 19:43:03,160 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 71 predicate places. [2023-08-25 19:43:03,161 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 137 transitions, 1257 flow [2023-08-25 19:43:03,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 163.3125) internal successors, (2613), 16 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:03,161 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:03,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:03,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:03,373 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:03,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 725926519, now seen corresponding path program 2 times [2023-08-25 19:43:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:03,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054119760] [2023-08-25 19:43:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:03,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:03,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:03,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054119760] [2023-08-25 19:43:03,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054119760] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:03,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654140845] [2023-08-25 19:43:03,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:43:03,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:03,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:03,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:03,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 19:43:03,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:43:03,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:03,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 19:43:03,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:03,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:04,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654140845] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:04,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:04,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 17 [2023-08-25 19:43:04,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397334486] [2023-08-25 19:43:04,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:04,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 19:43:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:04,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 19:43:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-08-25 19:43:04,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 456 [2023-08-25 19:43:04,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 137 transitions, 1257 flow. Second operand has 18 states, 18 states have (on average 157.44444444444446) internal successors, (2834), 18 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:04,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:04,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 456 [2023-08-25 19:43:04,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:06,813 INFO L124 PetriNetUnfolderBase]: 1402/2263 cut-off events. [2023-08-25 19:43:06,813 INFO L125 PetriNetUnfolderBase]: For 19467/19467 co-relation queries the response was YES. [2023-08-25 19:43:06,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12546 conditions, 2263 events. 1402/2263 cut-off events. For 19467/19467 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 10303 event pairs, 9 based on Foata normal form. 102/2365 useless extension candidates. Maximal degree in co-relation 12502. Up to 508 conditions per place. [2023-08-25 19:43:06,838 INFO L140 encePairwiseOnDemand]: 447/456 looper letters, 184 selfloop transitions, 194 changer transitions 175/553 dead transitions. [2023-08-25 19:43:06,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 553 transitions, 6006 flow [2023-08-25 19:43:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-08-25 19:43:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2023-08-25 19:43:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 10058 transitions. [2023-08-25 19:43:06,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3501113895850738 [2023-08-25 19:43:06,851 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 10058 transitions. [2023-08-25 19:43:06,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 10058 transitions. [2023-08-25 19:43:06,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:06,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 10058 transitions. [2023-08-25 19:43:06,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 159.65079365079364) internal successors, (10058), 63 states have internal predecessors, (10058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:06,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 456.0) internal successors, (29184), 64 states have internal predecessors, (29184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:06,894 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 456.0) internal successors, (29184), 64 states have internal predecessors, (29184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:06,894 INFO L175 Difference]: Start difference. First operand has 133 places, 137 transitions, 1257 flow. Second operand 63 states and 10058 transitions. [2023-08-25 19:43:06,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 553 transitions, 6006 flow [2023-08-25 19:43:06,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 553 transitions, 5240 flow, removed 313 selfloop flow, removed 20 redundant places. [2023-08-25 19:43:06,976 INFO L231 Difference]: Finished difference. Result has 185 places, 263 transitions, 2873 flow [2023-08-25 19:43:06,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=2873, PETRI_PLACES=185, PETRI_TRANSITIONS=263} [2023-08-25 19:43:06,977 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 123 predicate places. [2023-08-25 19:43:06,978 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 263 transitions, 2873 flow [2023-08-25 19:43:06,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 157.44444444444446) internal successors, (2834), 18 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:06,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:06,979 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:06,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:07,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-25 19:43:07,184 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:07,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash -12265190, now seen corresponding path program 3 times [2023-08-25 19:43:07,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:07,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285303037] [2023-08-25 19:43:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:07,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:07,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:07,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285303037] [2023-08-25 19:43:07,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285303037] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:07,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605595302] [2023-08-25 19:43:07,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:43:07,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:07,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:07,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:07,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 19:43:07,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-25 19:43:07,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:07,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:43:07,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:07,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:08,272 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:43:08,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605595302] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:08,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:08,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2023-08-25 19:43:08,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504680923] [2023-08-25 19:43:08,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:08,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 19:43:08,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 19:43:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-08-25 19:43:08,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 456 [2023-08-25 19:43:08,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 263 transitions, 2873 flow. Second operand has 21 states, 21 states have (on average 156.9047619047619) internal successors, (3295), 21 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:08,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:08,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 456 [2023-08-25 19:43:08,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:09,616 INFO L124 PetriNetUnfolderBase]: 1416/2279 cut-off events. [2023-08-25 19:43:09,616 INFO L125 PetriNetUnfolderBase]: For 26385/26385 co-relation queries the response was YES. [2023-08-25 19:43:09,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13913 conditions, 2279 events. 1416/2279 cut-off events. For 26385/26385 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 10339 event pairs, 5 based on Foata normal form. 48/2327 useless extension candidates. Maximal degree in co-relation 13858. Up to 770 conditions per place. [2023-08-25 19:43:09,636 INFO L140 encePairwiseOnDemand]: 447/456 looper letters, 195 selfloop transitions, 179 changer transitions 89/463 dead transitions. [2023-08-25 19:43:09,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 463 transitions, 5626 flow [2023-08-25 19:43:09,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-08-25 19:43:09,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-08-25 19:43:09,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 5918 transitions. [2023-08-25 19:43:09,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3507586533902323 [2023-08-25 19:43:09,645 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 5918 transitions. [2023-08-25 19:43:09,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 5918 transitions. [2023-08-25 19:43:09,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:09,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 5918 transitions. [2023-08-25 19:43:09,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 159.94594594594594) internal successors, (5918), 37 states have internal predecessors, (5918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:09,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 456.0) internal successors, (17328), 38 states have internal predecessors, (17328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:09,670 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 456.0) internal successors, (17328), 38 states have internal predecessors, (17328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:09,670 INFO L175 Difference]: Start difference. First operand has 185 places, 263 transitions, 2873 flow. Second operand 37 states and 5918 transitions. [2023-08-25 19:43:09,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 463 transitions, 5626 flow [2023-08-25 19:43:09,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 463 transitions, 4977 flow, removed 306 selfloop flow, removed 27 redundant places. [2023-08-25 19:43:09,778 INFO L231 Difference]: Finished difference. Result has 182 places, 295 transitions, 3380 flow [2023-08-25 19:43:09,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2545, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=3380, PETRI_PLACES=182, PETRI_TRANSITIONS=295} [2023-08-25 19:43:09,779 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 120 predicate places. [2023-08-25 19:43:09,779 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 295 transitions, 3380 flow [2023-08-25 19:43:09,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 156.9047619047619) internal successors, (3295), 21 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:09,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:09,780 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:09,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:09,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:09,985 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:09,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:09,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1632232245, now seen corresponding path program 4 times [2023-08-25 19:43:09,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:09,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095591481] [2023-08-25 19:43:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:09,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:10,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:10,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095591481] [2023-08-25 19:43:10,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095591481] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:10,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054072915] [2023-08-25 19:43:10,306 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:43:10,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:10,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:10,309 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:10,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 19:43:10,479 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:43:10,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:10,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:43:10,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:10,664 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:10,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:10,924 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:10,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054072915] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:10,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:10,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 20 [2023-08-25 19:43:10,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835883011] [2023-08-25 19:43:10,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:10,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 19:43:10,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:10,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 19:43:10,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-08-25 19:43:10,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 456 [2023-08-25 19:43:10,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 295 transitions, 3380 flow. Second operand has 21 states, 21 states have (on average 158.85714285714286) internal successors, (3336), 21 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:10,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:10,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 456 [2023-08-25 19:43:10,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:13,945 INFO L124 PetriNetUnfolderBase]: 2618/4237 cut-off events. [2023-08-25 19:43:13,945 INFO L125 PetriNetUnfolderBase]: For 41528/41528 co-relation queries the response was YES. [2023-08-25 19:43:13,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27656 conditions, 4237 events. 2618/4237 cut-off events. For 41528/41528 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 22468 event pairs, 19 based on Foata normal form. 104/4341 useless extension candidates. Maximal degree in co-relation 27604. Up to 848 conditions per place. [2023-08-25 19:43:13,984 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 264 selfloop transitions, 344 changer transitions 339/947 dead transitions. [2023-08-25 19:43:13,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 947 transitions, 12685 flow [2023-08-25 19:43:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-08-25 19:43:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2023-08-25 19:43:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 12784 transitions. [2023-08-25 19:43:14,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35487452809238285 [2023-08-25 19:43:14,001 INFO L72 ComplementDD]: Start complementDD. Operand 79 states and 12784 transitions. [2023-08-25 19:43:14,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 12784 transitions. [2023-08-25 19:43:14,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:14,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 79 states and 12784 transitions. [2023-08-25 19:43:14,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 80 states, 79 states have (on average 161.8227848101266) internal successors, (12784), 79 states have internal predecessors, (12784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:14,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 80 states, 80 states have (on average 456.0) internal successors, (36480), 80 states have internal predecessors, (36480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:14,048 INFO L81 ComplementDD]: Finished complementDD. Result has 80 states, 80 states have (on average 456.0) internal successors, (36480), 80 states have internal predecessors, (36480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:14,048 INFO L175 Difference]: Start difference. First operand has 182 places, 295 transitions, 3380 flow. Second operand 79 states and 12784 transitions. [2023-08-25 19:43:14,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 947 transitions, 12685 flow [2023-08-25 19:43:14,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 947 transitions, 11158 flow, removed 473 selfloop flow, removed 26 redundant places. [2023-08-25 19:43:14,277 INFO L231 Difference]: Finished difference. Result has 248 places, 430 transitions, 5631 flow [2023-08-25 19:43:14,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3044, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=79, PETRI_FLOW=5631, PETRI_PLACES=248, PETRI_TRANSITIONS=430} [2023-08-25 19:43:14,278 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 186 predicate places. [2023-08-25 19:43:14,278 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 430 transitions, 5631 flow [2023-08-25 19:43:14,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 158.85714285714286) internal successors, (3336), 21 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:14,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:14,279 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:14,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:14,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:14,479 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:14,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash -59972905, now seen corresponding path program 5 times [2023-08-25 19:43:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:14,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033736737] [2023-08-25 19:43:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:14,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:14,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033736737] [2023-08-25 19:43:14,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033736737] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:14,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679940332] [2023-08-25 19:43:14,802 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:43:14,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:14,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:14,803 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:14,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 19:43:14,922 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-08-25 19:43:14,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:14,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 18 conjunts are in the unsatisfiable core [2023-08-25 19:43:14,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:15,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:15,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679940332] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:15,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:15,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 22 [2023-08-25 19:43:15,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314529874] [2023-08-25 19:43:15,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:15,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-08-25 19:43:15,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:15,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-08-25 19:43:15,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-08-25 19:43:15,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 456 [2023-08-25 19:43:15,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 430 transitions, 5631 flow. Second operand has 23 states, 23 states have (on average 158.65217391304347) internal successors, (3649), 23 states have internal predecessors, (3649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:15,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:15,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 456 [2023-08-25 19:43:15,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:20,297 INFO L124 PetriNetUnfolderBase]: 4784/7807 cut-off events. [2023-08-25 19:43:20,297 INFO L125 PetriNetUnfolderBase]: For 128013/128013 co-relation queries the response was YES. [2023-08-25 19:43:20,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58188 conditions, 7807 events. 4784/7807 cut-off events. For 128013/128013 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 47580 event pairs, 43 based on Foata normal form. 192/7999 useless extension candidates. Maximal degree in co-relation 58124. Up to 1748 conditions per place. [2023-08-25 19:43:20,404 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 402 selfloop transitions, 684 changer transitions 466/1552 dead transitions. [2023-08-25 19:43:20,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1552 transitions, 23182 flow [2023-08-25 19:43:20,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-08-25 19:43:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2023-08-25 19:43:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 16401 transitions. [2023-08-25 19:43:20,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3561099531005732 [2023-08-25 19:43:20,428 INFO L72 ComplementDD]: Start complementDD. Operand 101 states and 16401 transitions. [2023-08-25 19:43:20,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 16401 transitions. [2023-08-25 19:43:20,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:20,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 101 states and 16401 transitions. [2023-08-25 19:43:20,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 102 states, 101 states have (on average 162.3861386138614) internal successors, (16401), 101 states have internal predecessors, (16401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:20,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 102 states, 102 states have (on average 456.0) internal successors, (46512), 102 states have internal predecessors, (46512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:20,601 INFO L81 ComplementDD]: Finished complementDD. Result has 102 states, 102 states have (on average 456.0) internal successors, (46512), 102 states have internal predecessors, (46512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:20,601 INFO L175 Difference]: Start difference. First operand has 248 places, 430 transitions, 5631 flow. Second operand 101 states and 16401 transitions. [2023-08-25 19:43:20,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1552 transitions, 23182 flow [2023-08-25 19:43:21,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 1552 transitions, 20089 flow, removed 1294 selfloop flow, removed 24 redundant places. [2023-08-25 19:43:21,332 INFO L231 Difference]: Finished difference. Result has 332 places, 821 transitions, 12554 flow [2023-08-25 19:43:21,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=5107, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=101, PETRI_FLOW=12554, PETRI_PLACES=332, PETRI_TRANSITIONS=821} [2023-08-25 19:43:21,333 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 270 predicate places. [2023-08-25 19:43:21,333 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 821 transitions, 12554 flow [2023-08-25 19:43:21,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 158.65217391304347) internal successors, (3649), 23 states have internal predecessors, (3649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:21,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:21,334 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:21,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:21,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-25 19:43:21,535 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:21,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash 904007170, now seen corresponding path program 6 times [2023-08-25 19:43:21,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:21,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755506969] [2023-08-25 19:43:21,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:21,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:21,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:21,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755506969] [2023-08-25 19:43:21,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755506969] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:21,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631232111] [2023-08-25 19:43:21,933 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 19:43:21,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:21,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:21,935 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:21,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 19:43:22,167 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-08-25 19:43:22,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:22,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:43:22,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:22,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:22,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631232111] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:22,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:22,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 23 [2023-08-25 19:43:22,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002557009] [2023-08-25 19:43:22,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:22,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 19:43:22,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:22,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 19:43:22,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2023-08-25 19:43:22,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 456 [2023-08-25 19:43:22,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 821 transitions, 12554 flow. Second operand has 24 states, 24 states have (on average 158.625) internal successors, (3807), 24 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:22,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:22,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 456 [2023-08-25 19:43:22,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:29,474 INFO L124 PetriNetUnfolderBase]: 8367/13592 cut-off events. [2023-08-25 19:43:29,474 INFO L125 PetriNetUnfolderBase]: For 285647/285647 co-relation queries the response was YES. [2023-08-25 19:43:29,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109066 conditions, 13592 events. 8367/13592 cut-off events. For 285647/285647 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 90196 event pairs, 141 based on Foata normal form. 526/14118 useless extension candidates. Maximal degree in co-relation 108970. Up to 2940 conditions per place. [2023-08-25 19:43:29,758 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 617 selfloop transitions, 881 changer transitions 1011/2509 dead transitions. [2023-08-25 19:43:29,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 2509 transitions, 43171 flow [2023-08-25 19:43:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-08-25 19:43:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2023-08-25 19:43:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 15734 transitions. [2023-08-25 19:43:29,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35571531922589983 [2023-08-25 19:43:29,782 INFO L72 ComplementDD]: Start complementDD. Operand 97 states and 15734 transitions. [2023-08-25 19:43:29,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 15734 transitions. [2023-08-25 19:43:29,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:29,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 97 states and 15734 transitions. [2023-08-25 19:43:29,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 98 states, 97 states have (on average 162.20618556701032) internal successors, (15734), 97 states have internal predecessors, (15734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:29,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 98 states, 98 states have (on average 456.0) internal successors, (44688), 98 states have internal predecessors, (44688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:29,853 INFO L81 ComplementDD]: Finished complementDD. Result has 98 states, 98 states have (on average 456.0) internal successors, (44688), 98 states have internal predecessors, (44688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:29,854 INFO L175 Difference]: Start difference. First operand has 332 places, 821 transitions, 12554 flow. Second operand 97 states and 15734 transitions. [2023-08-25 19:43:29,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 2509 transitions, 43171 flow [2023-08-25 19:43:32,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 2509 transitions, 39865 flow, removed 1551 selfloop flow, removed 40 redundant places. [2023-08-25 19:43:32,923 INFO L231 Difference]: Finished difference. Result has 407 places, 1272 transitions, 21876 flow [2023-08-25 19:43:32,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=11473, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=462, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=97, PETRI_FLOW=21876, PETRI_PLACES=407, PETRI_TRANSITIONS=1272} [2023-08-25 19:43:32,924 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 345 predicate places. [2023-08-25 19:43:32,924 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 1272 transitions, 21876 flow [2023-08-25 19:43:32,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 158.625) internal successors, (3807), 24 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:32,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:32,925 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:32,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:33,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-25 19:43:33,125 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:33,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:33,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1186094779, now seen corresponding path program 7 times [2023-08-25 19:43:33,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:33,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219363641] [2023-08-25 19:43:33,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:33,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:33,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:33,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219363641] [2023-08-25 19:43:33,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219363641] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:33,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763840601] [2023-08-25 19:43:33,606 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 19:43:33,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:33,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:33,608 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:33,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 19:43:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:33,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 19:43:33,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:33,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:43:34,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763840601] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:34,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:34,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 8] total 26 [2023-08-25 19:43:34,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490639826] [2023-08-25 19:43:34,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:34,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 19:43:34,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:34,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 19:43:34,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2023-08-25 19:43:34,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 456 [2023-08-25 19:43:34,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 1272 transitions, 21876 flow. Second operand has 27 states, 27 states have (on average 158.44444444444446) internal successors, (4278), 27 states have internal predecessors, (4278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:34,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:34,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 456 [2023-08-25 19:43:34,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:43,125 INFO L124 PetriNetUnfolderBase]: 11590/18925 cut-off events. [2023-08-25 19:43:43,125 INFO L125 PetriNetUnfolderBase]: For 572292/572292 co-relation queries the response was YES. [2023-08-25 19:43:43,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164539 conditions, 18925 events. 11590/18925 cut-off events. For 572292/572292 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 131957 event pairs, 161 based on Foata normal form. 398/19323 useless extension candidates. Maximal degree in co-relation 164412. Up to 4544 conditions per place. [2023-08-25 19:43:43,670 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 953 selfloop transitions, 1368 changer transitions 643/2964 dead transitions. [2023-08-25 19:43:43,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 2964 transitions, 55992 flow [2023-08-25 19:43:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-08-25 19:43:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2023-08-25 19:43:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 12374 transitions. [2023-08-25 19:43:43,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3570521698984303 [2023-08-25 19:43:43,684 INFO L72 ComplementDD]: Start complementDD. Operand 76 states and 12374 transitions. [2023-08-25 19:43:43,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 12374 transitions. [2023-08-25 19:43:43,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:43,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 76 states and 12374 transitions. [2023-08-25 19:43:43,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 77 states, 76 states have (on average 162.81578947368422) internal successors, (12374), 76 states have internal predecessors, (12374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:43,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 77 states, 77 states have (on average 456.0) internal successors, (35112), 77 states have internal predecessors, (35112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:43,737 INFO L81 ComplementDD]: Finished complementDD. Result has 77 states, 77 states have (on average 456.0) internal successors, (35112), 77 states have internal predecessors, (35112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:43,737 INFO L175 Difference]: Start difference. First operand has 407 places, 1272 transitions, 21876 flow. Second operand 76 states and 12374 transitions. [2023-08-25 19:43:43,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 2964 transitions, 55992 flow [2023-08-25 19:43:51,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 2964 transitions, 52048 flow, removed 1950 selfloop flow, removed 45 redundant places. [2023-08-25 19:43:51,366 INFO L231 Difference]: Finished difference. Result has 434 places, 2070 transitions, 38824 flow [2023-08-25 19:43:51,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=19952, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=692, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=76, PETRI_FLOW=38824, PETRI_PLACES=434, PETRI_TRANSITIONS=2070} [2023-08-25 19:43:51,368 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 372 predicate places. [2023-08-25 19:43:51,368 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 2070 transitions, 38824 flow [2023-08-25 19:43:51,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 158.44444444444446) internal successors, (4278), 27 states have internal predecessors, (4278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:51,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:51,369 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:51,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-25 19:43:51,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-25 19:43:51,569 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:43:51,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:51,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1181338081, now seen corresponding path program 8 times [2023-08-25 19:43:51,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:51,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778588088] [2023-08-25 19:43:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:52,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778588088] [2023-08-25 19:43:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778588088] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479991123] [2023-08-25 19:43:52,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:43:52,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:52,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:52,167 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:43:52,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-25 19:43:52,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:43:52,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:52,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 22 conjunts are in the unsatisfiable core [2023-08-25 19:43:52,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:52,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:43:53,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479991123] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:53,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:53,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 11] total 30 [2023-08-25 19:43:53,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600137778] [2023-08-25 19:43:53,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:53,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:43:53,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:43:53,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:43:53,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 456 [2023-08-25 19:43:53,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 2070 transitions, 38824 flow. Second operand has 31 states, 31 states have (on average 156.2258064516129) internal successors, (4843), 31 states have internal predecessors, (4843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:53,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:53,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 456 [2023-08-25 19:43:53,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:44:16,096 INFO L124 PetriNetUnfolderBase]: 20626/33469 cut-off events. [2023-08-25 19:44:16,097 INFO L125 PetriNetUnfolderBase]: For 957116/957116 co-relation queries the response was YES. [2023-08-25 19:44:17,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309828 conditions, 33469 events. 20626/33469 cut-off events. For 957116/957116 co-relation queries the response was YES. Maximal size of possible extension queue 1264. Compared 250539 event pairs, 314 based on Foata normal form. 1696/35165 useless extension candidates. Maximal degree in co-relation 309692. Up to 8304 conditions per place. [2023-08-25 19:44:17,224 INFO L140 encePairwiseOnDemand]: 446/456 looper letters, 1240 selfloop transitions, 3117 changer transitions 1885/6242 dead transitions. [2023-08-25 19:44:17,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 6242 transitions, 130852 flow [2023-08-25 19:44:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2023-08-25 19:44:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2023-08-25 19:44:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 28273 transitions. [2023-08-25 19:44:17,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3502948756070968 [2023-08-25 19:44:17,249 INFO L72 ComplementDD]: Start complementDD. Operand 177 states and 28273 transitions. [2023-08-25 19:44:17,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 28273 transitions. [2023-08-25 19:44:17,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:44:17,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 177 states and 28273 transitions. [2023-08-25 19:44:17,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 178 states, 177 states have (on average 159.73446327683615) internal successors, (28273), 177 states have internal predecessors, (28273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:17,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 178 states, 178 states have (on average 456.0) internal successors, (81168), 178 states have internal predecessors, (81168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:17,346 INFO L81 ComplementDD]: Finished complementDD. Result has 178 states, 178 states have (on average 456.0) internal successors, (81168), 178 states have internal predecessors, (81168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:17,346 INFO L175 Difference]: Start difference. First operand has 434 places, 2070 transitions, 38824 flow. Second operand 177 states and 28273 transitions. [2023-08-25 19:44:17,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 6242 transitions, 130852 flow [2023-08-25 19:44:44,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 6242 transitions, 124052 flow, removed 3330 selfloop flow, removed 28 redundant places. [2023-08-25 19:44:44,430 INFO L231 Difference]: Finished difference. Result has 657 places, 3885 transitions, 81502 flow [2023-08-25 19:44:44,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=36557, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1440, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=177, PETRI_FLOW=81502, PETRI_PLACES=657, PETRI_TRANSITIONS=3885} [2023-08-25 19:44:44,432 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 595 predicate places. [2023-08-25 19:44:44,432 INFO L495 AbstractCegarLoop]: Abstraction has has 657 places, 3885 transitions, 81502 flow [2023-08-25 19:44:44,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 156.2258064516129) internal successors, (4843), 31 states have internal predecessors, (4843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:44,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:44:44,433 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:44:44,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-25 19:44:44,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-25 19:44:44,638 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:44:44,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:44:44,639 INFO L85 PathProgramCache]: Analyzing trace with hash -547214349, now seen corresponding path program 9 times [2023-08-25 19:44:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:44:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404760060] [2023-08-25 19:44:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:44:44,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:44:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:44:45,097 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:45,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:44:45,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404760060] [2023-08-25 19:44:45,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404760060] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:44:45,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978279851] [2023-08-25 19:44:45,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:44:45,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:45,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:44:45,101 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:44:45,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-25 19:44:45,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-25 19:44:45,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:44:45,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 19:44:45,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:44:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:45,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:44:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:46,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978279851] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:44:46,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:44:46,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 9] total 26 [2023-08-25 19:44:46,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92695662] [2023-08-25 19:44:46,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:44:46,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 19:44:46,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:44:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 19:44:46,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2023-08-25 19:44:46,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 456 [2023-08-25 19:44:46,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 3885 transitions, 81502 flow. Second operand has 27 states, 27 states have (on average 156.62962962962962) internal successors, (4229), 27 states have internal predecessors, (4229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:46,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:44:46,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 456 [2023-08-25 19:44:46,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:45:28,771 INFO L124 PetriNetUnfolderBase]: 25670/41565 cut-off events. [2023-08-25 19:45:28,771 INFO L125 PetriNetUnfolderBase]: For 5917748/5917748 co-relation queries the response was YES. [2023-08-25 19:45:30,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499094 conditions, 41565 events. 25670/41565 cut-off events. For 5917748/5917748 co-relation queries the response was YES. Maximal size of possible extension queue 1533. Compared 321456 event pairs, 617 based on Foata normal form. 1186/42751 useless extension candidates. Maximal degree in co-relation 498880. Up to 11796 conditions per place. [2023-08-25 19:45:31,281 INFO L140 encePairwiseOnDemand]: 447/456 looper letters, 2579 selfloop transitions, 3083 changer transitions 1755/7417 dead transitions. [2023-08-25 19:45:31,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 7417 transitions, 172542 flow [2023-08-25 19:45:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-08-25 19:45:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2023-08-25 19:45:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 21042 transitions. [2023-08-25 19:45:31,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34958133971291866 [2023-08-25 19:45:31,299 INFO L72 ComplementDD]: Start complementDD. Operand 132 states and 21042 transitions. [2023-08-25 19:45:31,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 21042 transitions. [2023-08-25 19:45:31,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:45:31,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 132 states and 21042 transitions. [2023-08-25 19:45:31,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 133 states, 132 states have (on average 159.4090909090909) internal successors, (21042), 132 states have internal predecessors, (21042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:31,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 133 states, 133 states have (on average 456.0) internal successors, (60648), 133 states have internal predecessors, (60648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:31,371 INFO L81 ComplementDD]: Finished complementDD. Result has 133 states, 133 states have (on average 456.0) internal successors, (60648), 133 states have internal predecessors, (60648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:31,371 INFO L175 Difference]: Start difference. First operand has 657 places, 3885 transitions, 81502 flow. Second operand 132 states and 21042 transitions. [2023-08-25 19:45:31,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 708 places, 7417 transitions, 172542 flow [2023-08-25 19:46:46,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 627 places, 7417 transitions, 158927 flow, removed 5998 selfloop flow, removed 81 redundant places. [2023-08-25 19:46:46,645 INFO L231 Difference]: Finished difference. Result has 714 places, 5146 transitions, 114861 flow [2023-08-25 19:46:46,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=75712, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3885, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1781, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=132, PETRI_FLOW=114861, PETRI_PLACES=714, PETRI_TRANSITIONS=5146} [2023-08-25 19:46:46,649 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 652 predicate places. [2023-08-25 19:46:46,649 INFO L495 AbstractCegarLoop]: Abstraction has has 714 places, 5146 transitions, 114861 flow [2023-08-25 19:46:46,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 156.62962962962962) internal successors, (4229), 27 states have internal predecessors, (4229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:46,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:46:46,650 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:46:46,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-25 19:46:46,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:46:46,855 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:46:46,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:46:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash -57604202, now seen corresponding path program 10 times [2023-08-25 19:46:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:46:46,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029683049] [2023-08-25 19:46:46,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:46:46,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:46:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:46:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:46:47,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:46:47,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029683049] [2023-08-25 19:46:47,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029683049] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:46:47,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731943640] [2023-08-25 19:46:47,349 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:46:47,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:46:47,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:46:47,350 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:46:47,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-25 19:46:47,523 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:46:47,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:46:47,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 19:46:47,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:46:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:46:47,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:46:48,278 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:46:48,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731943640] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:46:48,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:46:48,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 10] total 29 [2023-08-25 19:46:48,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130522773] [2023-08-25 19:46:48,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:46:48,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-08-25 19:46:48,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:46:48,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-08-25 19:46:48,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=703, Unknown=0, NotChecked=0, Total=870 [2023-08-25 19:46:48,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 456 [2023-08-25 19:46:48,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 714 places, 5146 transitions, 114861 flow. Second operand has 30 states, 30 states have (on average 158.26666666666668) internal successors, (4748), 30 states have internal predecessors, (4748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:48,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:46:48,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 456 [2023-08-25 19:46:48,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:48:33,926 INFO L124 PetriNetUnfolderBase]: 53431/86786 cut-off events. [2023-08-25 19:48:33,926 INFO L125 PetriNetUnfolderBase]: For 5685737/5685737 co-relation queries the response was YES. [2023-08-25 19:48:39,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009227 conditions, 86786 events. 53431/86786 cut-off events. For 5685737/5685737 co-relation queries the response was YES. Maximal size of possible extension queue 3074. Compared 745255 event pairs, 699 based on Foata normal form. 2496/89282 useless extension candidates. Maximal degree in co-relation 1008996. Up to 21916 conditions per place. [2023-08-25 19:48:39,896 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 3240 selfloop transitions, 7030 changer transitions 4580/14850 dead transitions. [2023-08-25 19:48:39,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 836 places, 14850 transitions, 371121 flow [2023-08-25 19:48:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2023-08-25 19:48:39,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2023-08-25 19:48:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 30078 transitions. [2023-08-25 19:48:39,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3546264855687606 [2023-08-25 19:48:39,922 INFO L72 ComplementDD]: Start complementDD. Operand 186 states and 30078 transitions. [2023-08-25 19:48:39,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 30078 transitions. [2023-08-25 19:48:39,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:48:39,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 186 states and 30078 transitions. [2023-08-25 19:48:39,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 187 states, 186 states have (on average 161.70967741935485) internal successors, (30078), 186 states have internal predecessors, (30078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:40,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 187 states, 187 states have (on average 456.0) internal successors, (85272), 187 states have internal predecessors, (85272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:40,019 INFO L81 ComplementDD]: Finished complementDD. Result has 187 states, 187 states have (on average 456.0) internal successors, (85272), 187 states have internal predecessors, (85272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:40,019 INFO L175 Difference]: Start difference. First operand has 714 places, 5146 transitions, 114861 flow. Second operand 186 states and 30078 transitions. [2023-08-25 19:48:40,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 836 places, 14850 transitions, 371121 flow [2023-08-25 19:53:13,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 763 places, 14850 transitions, 345035 flow, removed 10742 selfloop flow, removed 73 redundant places. [2023-08-25 19:53:14,167 INFO L231 Difference]: Finished difference. Result has 884 places, 9879 transitions, 240545 flow [2023-08-25 19:53:14,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=107444, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2729, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1781, PETRI_DIFFERENCE_SUBTRAHEND_STATES=186, PETRI_FLOW=240545, PETRI_PLACES=884, PETRI_TRANSITIONS=9879} [2023-08-25 19:53:14,171 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 822 predicate places. [2023-08-25 19:53:14,171 INFO L495 AbstractCegarLoop]: Abstraction has has 884 places, 9879 transitions, 240545 flow [2023-08-25 19:53:14,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 158.26666666666668) internal successors, (4748), 30 states have internal predecessors, (4748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:53:14,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:53:14,172 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:53:14,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-25 19:53:14,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-08-25 19:53:14,373 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-25 19:53:14,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:53:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash -855183845, now seen corresponding path program 11 times [2023-08-25 19:53:14,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:53:14,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274246527] [2023-08-25 19:53:14,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:53:14,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:53:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:53:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:53:14,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:53:14,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274246527] [2023-08-25 19:53:14,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274246527] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:53:14,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599921373] [2023-08-25 19:53:14,830 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:53:14,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:53:14,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:53:14,831 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:53:14,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-25 19:53:14,976 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-08-25 19:53:14,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:53:14,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 19:53:14,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:53:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:53:15,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:53:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:53:15,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599921373] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:53:15,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:53:15,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 10] total 28 [2023-08-25 19:53:15,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746930466] [2023-08-25 19:53:15,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:53:15,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-08-25 19:53:15,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:53:15,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-08-25 19:53:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2023-08-25 19:53:15,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 456 [2023-08-25 19:53:15,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 884 places, 9879 transitions, 240545 flow. Second operand has 29 states, 29 states have (on average 158.31034482758622) internal successors, (4591), 29 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:53:15,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:53:15,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 456 [2023-08-25 19:53:15,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-25 19:56:07,443 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 19:56:07,443 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 19:56:08,461 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 [2023-08-25 19:56:08,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-25 19:56:12,226 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (55 of 56 remaining) [2023-08-25 19:56:12,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:56:12,226 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-08-25 19:56:12,227 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-08-25 19:56:12,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-08-25 19:56:12,229 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-08-25 19:56:12,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-08-25 19:56:12,230 INFO L445 BasicCegarLoop]: Path program histogram: [11, 4, 3, 2, 1] [2023-08-25 19:56:12,235 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:56:12,235 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:56:12,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:56:12 BasicIcfg [2023-08-25 19:56:12,237 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:56:12,237 INFO L158 Benchmark]: Toolchain (without parser) took 807419.46ms. Allocated memory was 392.2MB in the beginning and 10.8GB in the end (delta: 10.5GB). Free memory was 349.3MB in the beginning and 7.5GB in the end (delta: -7.1GB). Peak memory consumption was 3.9GB. Max. memory is 16.0GB. [2023-08-25 19:56:12,237 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 392.2MB. Free memory was 370.2MB in the beginning and 370.0MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:56:12,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.39ms. Allocated memory is still 392.2MB. Free memory was 348.3MB in the beginning and 335.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 19:56:12,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.32ms. Allocated memory is still 392.2MB. Free memory was 335.7MB in the beginning and 333.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:56:12,238 INFO L158 Benchmark]: Boogie Preprocessor took 52.72ms. Allocated memory is still 392.2MB. Free memory was 333.6MB in the beginning and 332.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:56:12,238 INFO L158 Benchmark]: RCFGBuilder took 603.57ms. Allocated memory is still 392.2MB. Free memory was 332.5MB in the beginning and 303.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 19:56:12,238 INFO L158 Benchmark]: TraceAbstraction took 806519.12ms. Allocated memory was 392.2MB in the beginning and 10.8GB in the end (delta: 10.5GB). Free memory was 303.2MB in the beginning and 7.5GB in the end (delta: -7.2GB). Peak memory consumption was 3.9GB. Max. memory is 16.0GB. [2023-08-25 19:56:12,240 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 392.2MB. Free memory was 370.2MB in the beginning and 370.0MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 204.39ms. Allocated memory is still 392.2MB. Free memory was 348.3MB in the beginning and 335.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.32ms. Allocated memory is still 392.2MB. Free memory was 335.7MB in the beginning and 333.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 52.72ms. Allocated memory is still 392.2MB. Free memory was 333.6MB in the beginning and 332.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 603.57ms. Allocated memory is still 392.2MB. Free memory was 332.5MB in the beginning and 303.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 806519.12ms. Allocated memory was 392.2MB in the beginning and 10.8GB in the end (delta: 10.5GB). Free memory was 303.2MB in the beginning and 7.5GB in the end (delta: -7.2GB). Peak memory consumption was 3.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 195 PlacesBefore, 62 PlacesAfterwards, 195 TransitionsBefore, 54 TransitionsAfterwards, 5142 CoEnabledTransitionPairs, 9 FixpointIterations, 118 TrivialSequentialCompositions, 106 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 4 ConcurrentYvCompositions, 8 ChoiceCompositions, 247 TotalNumberOfCompositions, 7458 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6149, independent: 6087, independent conditional: 0, independent unconditional: 6087, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2608, independent: 2596, independent conditional: 0, independent unconditional: 2596, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6149, independent: 3491, independent conditional: 0, independent unconditional: 3491, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 2608, unknown conditional: 0, unknown unconditional: 2608] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing Executor. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 263 locations, 56 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: 806.4s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 780.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7215 SdHoareTripleChecker+Valid, 13.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7215 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 11.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 807 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21191 IncrementalHoareTripleChecker+Invalid, 21998 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 807 mSolverCounterUnsat, 0 mSDtfsCounter, 21191 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1952 GetRequests, 481 SyntacticMatches, 27 SemanticMatches, 1444 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80587 ImplicationChecksByTransitivity, 36.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240545occurred in iteration=20, InterpolantAutomatonStates: 1093, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 821 NumberOfCodeBlocks, 821 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 1107 ConstructedInterpolants, 0 QuantifiedInterpolants, 10685 SizeOfPredicates, 147 NumberOfNonLiveVariables, 3408 ConjunctsInSsa, 221 ConjunctsInUnsatCore, 48 InterpolantComputations, 8 PerfectInterpolantSequences, 87/352 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown