/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-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:42:46,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:42:46,972 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 19:42:46,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:42:46,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:42:46,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:42:46,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:42:46,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:42:46,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:42:46,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:42:46,998 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:42:46,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:42:46,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:42:46,999 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:42:46,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:42:47,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:42:47,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:42:47,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:42:47,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:42:47,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:42:47,004 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:42:47,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:42:47,007 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:42:47,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:42:47,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:42:47,008 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:42:47,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:42:47,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:42:47,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:42:47,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:42:47,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:42:47,010 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:42:47,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:42:47,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:42:47,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:42:47,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:42:47,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:42:47,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:42:47,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:42:47,362 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:42:47,364 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:42:47,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2023-08-25 19:42:48,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:42:48,738 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:42:48,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2023-08-25 19:42:48,746 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80767a4c0/44b686d14e264c9cbbbc017932bfce54/FLAG4254f8936 [2023-08-25 19:42:48,763 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80767a4c0/44b686d14e264c9cbbbc017932bfce54 [2023-08-25 19:42:48,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:42:48,770 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:42:48,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:42:48,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:42:48,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:42:48,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:42:48" (1/1) ... [2023-08-25 19:42:48,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435d2673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:48, skipping insertion in model container [2023-08-25 19:42:48,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:42:48" (1/1) ... [2023-08-25 19:42:48,803 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:42:48,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:42:49,003 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:42:49,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:42:49,053 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:42:49,053 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:42:49,059 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:42:49,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49 WrapperNode [2023-08-25 19:42:49,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:42:49,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:42:49,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:42:49,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:42:49,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,109 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 266 [2023-08-25 19:42:49,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:42:49,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:42:49,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:42:49,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:42:49,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:42:49,156 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:42:49,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:42:49,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:42:49,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (1/1) ... [2023-08-25 19:42:49,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:42:49,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:49,193 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 19:42:49,215 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 19:42:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:42:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:42:49,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:42:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:42:49,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:42:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:42:49,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:42:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:42:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:42:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:42:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 19:42:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 19:42:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:42:49,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:42:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:42:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:42:49,232 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 19:42:49,337 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:42:49,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:42:49,822 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:42:49,944 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:42:49,944 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 19:42:49,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:42:49 BoogieIcfgContainer [2023-08-25 19:42:49,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:42:49,949 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:42:49,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:42:49,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:42:49,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:42:48" (1/3) ... [2023-08-25 19:42:49,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1539e660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:42:49, skipping insertion in model container [2023-08-25 19:42:49,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:49" (2/3) ... [2023-08-25 19:42:49,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1539e660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:42:49, skipping insertion in model container [2023-08-25 19:42:49,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:42:49" (3/3) ... [2023-08-25 19:42:49,955 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2023-08-25 19:42:49,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:42:49,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-08-25 19:42:49,971 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:42:50,048 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 19:42:50,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 206 transitions, 436 flow [2023-08-25 19:42:50,219 INFO L124 PetriNetUnfolderBase]: 10/203 cut-off events. [2023-08-25 19:42:50,220 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:42:50,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 203 events. 10/203 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 308 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2023-08-25 19:42:50,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 206 transitions, 436 flow [2023-08-25 19:42:50,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 192 transitions, 402 flow [2023-08-25 19:42:50,241 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:42:50,252 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 192 transitions, 402 flow [2023-08-25 19:42:50,255 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 192 transitions, 402 flow [2023-08-25 19:42:50,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 192 transitions, 402 flow [2023-08-25 19:42:50,307 INFO L124 PetriNetUnfolderBase]: 10/192 cut-off events. [2023-08-25 19:42:50,307 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:42:50,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 192 events. 10/192 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 309 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2023-08-25 19:42:50,313 INFO L119 LiptonReduction]: Number of co-enabled transitions 4270 [2023-08-25 19:42:57,244 INFO L134 LiptonReduction]: Checked pairs total: 6626 [2023-08-25 19:42:57,244 INFO L136 LiptonReduction]: Total number of compositions: 233 [2023-08-25 19:42:57,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:42:57,262 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;@68861285, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:42:57,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-08-25 19:42:57,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:42:57,264 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:42:57,264 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:42:57,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:57,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:42:57,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:57,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1006, now seen corresponding path program 1 times [2023-08-25 19:42:57,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:57,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880884040] [2023-08-25 19:42:57,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:57,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:57,349 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 19:42:57,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:57,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880884040] [2023-08-25 19:42:57,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880884040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:57,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:57,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:42:57,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327918759] [2023-08-25 19:42:57,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:57,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:42:57,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:57,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:42:57,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:42:57,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 439 [2023-08-25 19:42:57,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 136 flow. Second operand has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:57,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:57,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 439 [2023-08-25 19:42:57,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:57,472 INFO L124 PetriNetUnfolderBase]: 227/354 cut-off events. [2023-08-25 19:42:57,473 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-08-25 19:42:57,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 354 events. 227/354 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1009 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 19:42:57,477 INFO L140 encePairwiseOnDemand]: 402/439 looper letters, 22 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2023-08-25 19:42:57,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 106 flow [2023-08-25 19:42:57,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:42:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:42:57,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 385 transitions. [2023-08-25 19:42:57,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.438496583143508 [2023-08-25 19:42:57,493 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 385 transitions. [2023-08-25 19:42:57,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 385 transitions. [2023-08-25 19:42:57,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:57,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 385 transitions. [2023-08-25 19:42:57,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:57,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:57,505 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:57,506 INFO L175 Difference]: Start difference. First operand has 67 places, 59 transitions, 136 flow. Second operand 2 states and 385 transitions. [2023-08-25 19:42:57,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 106 flow [2023-08-25 19:42:57,510 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 19:42:57,511 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 50 flow [2023-08-25 19:42:57,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, 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 19:42:57,515 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -42 predicate places. [2023-08-25 19:42:57,516 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 50 flow [2023-08-25 19:42:57,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:57,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:57,516 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 19:42:57,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:42:57,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:57,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash 288948949, now seen corresponding path program 1 times [2023-08-25 19:42:57,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:57,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744034674] [2023-08-25 19:42:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:57,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:57,871 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 19:42:57,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744034674] [2023-08-25 19:42:57,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744034674] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:57,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:57,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:42:57,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537179715] [2023-08-25 19:42:57,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:57,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:42:57,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:57,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:42:57,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:42:57,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 439 [2023-08-25 19:42:57,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:57,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:57,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 439 [2023-08-25 19:42:57,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:58,003 INFO L124 PetriNetUnfolderBase]: 171/270 cut-off events. [2023-08-25 19:42:58,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:42:58,005 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 776 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 19:42:58,006 INFO L140 encePairwiseOnDemand]: 435/439 looper letters, 36 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-08-25 19:42:58,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 40 transitions, 168 flow [2023-08-25 19:42:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:42:58,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:42:58,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 673 transitions. [2023-08-25 19:42:58,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38325740318906604 [2023-08-25 19:42:58,012 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 673 transitions. [2023-08-25 19:42:58,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 673 transitions. [2023-08-25 19:42:58,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:58,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 673 transitions. [2023-08-25 19:42:58,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 439.0) internal successors, (2195), 5 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,020 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 439.0) internal successors, (2195), 5 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,020 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 50 flow. Second operand 4 states and 673 transitions. [2023-08-25 19:42:58,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 40 transitions, 168 flow [2023-08-25 19:42:58,021 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 19:42:58,022 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 68 flow [2023-08-25 19:42:58,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, 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 19:42:58,023 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -38 predicate places. [2023-08-25 19:42:58,024 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 68 flow [2023-08-25 19:42:58,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:58,028 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 19:42:58,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:42:58,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:58,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2088227891, now seen corresponding path program 2 times [2023-08-25 19:42:58,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:58,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086741811] [2023-08-25 19:42:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:58,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:58,220 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 19:42:58,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:58,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086741811] [2023-08-25 19:42:58,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086741811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:58,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:58,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:42:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849265892] [2023-08-25 19:42:58,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:58,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:42:58,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:58,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:42:58,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:42:58,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 439 [2023-08-25 19:42:58,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:58,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 439 [2023-08-25 19:42:58,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:58,317 INFO L124 PetriNetUnfolderBase]: 144/231 cut-off events. [2023-08-25 19:42:58,318 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-25 19:42:58,318 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 580 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 19:42:58,319 INFO L140 encePairwiseOnDemand]: 435/439 looper letters, 32 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2023-08-25 19:42:58,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 181 flow [2023-08-25 19:42:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:42:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:42:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 669 transitions. [2023-08-25 19:42:58,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3809794988610478 [2023-08-25 19:42:58,322 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 669 transitions. [2023-08-25 19:42:58,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 669 transitions. [2023-08-25 19:42:58,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:58,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 669 transitions. [2023-08-25 19:42:58,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 439.0) internal successors, (2195), 5 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,328 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 439.0) internal successors, (2195), 5 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,328 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 68 flow. Second operand 4 states and 669 transitions. [2023-08-25 19:42:58,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 181 flow [2023-08-25 19:42:58,329 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 19:42:58,330 INFO L231 Difference]: Finished difference. Result has 33 places, 27 transitions, 96 flow [2023-08-25 19:42:58,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, 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 19:42:58,331 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -34 predicate places. [2023-08-25 19:42:58,331 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 96 flow [2023-08-25 19:42:58,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:58,332 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 19:42:58,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:42:58,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:58,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1951894847, now seen corresponding path program 3 times [2023-08-25 19:42:58,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:58,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023046886] [2023-08-25 19:42:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:58,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:58,509 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 19:42:58,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:58,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023046886] [2023-08-25 19:42:58,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023046886] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:58,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:58,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:42:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035903067] [2023-08-25 19:42:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:58,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:42:58,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:58,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:42:58,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:42:58,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 439 [2023-08-25 19:42:58,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 161.6) internal successors, (808), 5 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:58,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 439 [2023-08-25 19:42:58,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:58,644 INFO L124 PetriNetUnfolderBase]: 156/251 cut-off events. [2023-08-25 19:42:58,644 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-08-25 19:42:58,645 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 697 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 19:42:58,646 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 38 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-08-25 19:42:58,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 236 flow [2023-08-25 19:42:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:42:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:42:58,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 835 transitions. [2023-08-25 19:42:58,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3804100227790433 [2023-08-25 19:42:58,649 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 835 transitions. [2023-08-25 19:42:58,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 835 transitions. [2023-08-25 19:42:58,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:58,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 835 transitions. [2023-08-25 19:42:58,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 439.0) internal successors, (2634), 6 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,655 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 439.0) internal successors, (2634), 6 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,656 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 96 flow. Second operand 5 states and 835 transitions. [2023-08-25 19:42:58,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 236 flow [2023-08-25 19:42:58,657 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 19:42:58,657 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 126 flow [2023-08-25 19:42:58,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, 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 19:42:58,658 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -29 predicate places. [2023-08-25 19:42:58,658 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 126 flow [2023-08-25 19:42:58,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 161.6) internal successors, (808), 5 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:58,659 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 19:42:58,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:42:58,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:58,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 684431613, now seen corresponding path program 4 times [2023-08-25 19:42:58,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:58,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171700229] [2023-08-25 19:42:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:58,827 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 19:42:58,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:58,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171700229] [2023-08-25 19:42:58,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171700229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:58,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:58,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:42:58,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094422126] [2023-08-25 19:42:58,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:58,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:42:58,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:58,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:42:58,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:42:58,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 439 [2023-08-25 19:42:58,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 156.6) internal successors, (783), 5 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:58,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:58,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 439 [2023-08-25 19:42:58,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:59,016 INFO L124 PetriNetUnfolderBase]: 263/424 cut-off events. [2023-08-25 19:42:59,016 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2023-08-25 19:42:59,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 424 events. 263/424 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1396 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 19:42:59,019 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 34 selfloop transitions, 3 changer transitions 30/67 dead transitions. [2023-08-25 19:42:59,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 67 transitions, 408 flow [2023-08-25 19:42:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:42:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:42:59,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1131 transitions. [2023-08-25 19:42:59,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3680442564269443 [2023-08-25 19:42:59,022 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1131 transitions. [2023-08-25 19:42:59,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1131 transitions. [2023-08-25 19:42:59,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:59,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1131 transitions. [2023-08-25 19:42:59,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 161.57142857142858) internal successors, (1131), 7 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 439.0) internal successors, (3512), 8 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,032 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 439.0) internal successors, (3512), 8 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,032 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 126 flow. Second operand 7 states and 1131 transitions. [2023-08-25 19:42:59,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 67 transitions, 408 flow [2023-08-25 19:42:59,037 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 19:42:59,039 INFO L231 Difference]: Finished difference. Result has 47 places, 30 transitions, 155 flow [2023-08-25 19:42:59,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, 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 19:42:59,041 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -20 predicate places. [2023-08-25 19:42:59,041 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 30 transitions, 155 flow [2023-08-25 19:42:59,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 156.6) internal successors, (783), 5 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:59,042 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 19:42:59,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:42:59,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:59,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash 759663201, now seen corresponding path program 1 times [2023-08-25 19:42:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:59,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810975641] [2023-08-25 19:42:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:59,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:59,174 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 19:42:59,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:59,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810975641] [2023-08-25 19:42:59,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810975641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:59,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:59,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:42:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923938876] [2023-08-25 19:42:59,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:59,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:42:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:59,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:42:59,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:42:59,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 439 [2023-08-25 19:42:59,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 30 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:59,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 439 [2023-08-25 19:42:59,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:59,306 INFO L124 PetriNetUnfolderBase]: 191/310 cut-off events. [2023-08-25 19:42:59,306 INFO L125 PetriNetUnfolderBase]: For 647/647 co-relation queries the response was YES. [2023-08-25 19:42:59,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 310 events. 191/310 cut-off events. For 647/647 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 866 event pairs, 27 based on Foata normal form. 12/322 useless extension candidates. Maximal degree in co-relation 1143. Up to 104 conditions per place. [2023-08-25 19:42:59,309 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 43 selfloop transitions, 7 changer transitions 0/50 dead transitions. [2023-08-25 19:42:59,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 364 flow [2023-08-25 19:42:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:42:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:42:59,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 835 transitions. [2023-08-25 19:42:59,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3804100227790433 [2023-08-25 19:42:59,312 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 835 transitions. [2023-08-25 19:42:59,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 835 transitions. [2023-08-25 19:42:59,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:59,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 835 transitions. [2023-08-25 19:42:59,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 439.0) internal successors, (2634), 6 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,318 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 439.0) internal successors, (2634), 6 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,318 INFO L175 Difference]: Start difference. First operand has 47 places, 30 transitions, 155 flow. Second operand 5 states and 835 transitions. [2023-08-25 19:42:59,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 364 flow [2023-08-25 19:42:59,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 344 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-25 19:42:59,322 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 182 flow [2023-08-25 19:42:59,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, 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=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2023-08-25 19:42:59,323 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -21 predicate places. [2023-08-25 19:42:59,323 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 182 flow [2023-08-25 19:42:59,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:59,324 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 19:42:59,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:42:59,324 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:59,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2105912859, now seen corresponding path program 2 times [2023-08-25 19:42:59,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:59,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181919720] [2023-08-25 19:42:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:59,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:59,542 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 19:42:59,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:59,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181919720] [2023-08-25 19:42:59,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181919720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:59,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:59,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:42:59,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908220161] [2023-08-25 19:42:59,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:59,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:42:59,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:59,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:42:59,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:42:59,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 439 [2023-08-25 19:42:59,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 154.33333333333334) internal successors, (926), 6 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:59,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 439 [2023-08-25 19:42:59,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:59,817 INFO L124 PetriNetUnfolderBase]: 337/552 cut-off events. [2023-08-25 19:42:59,817 INFO L125 PetriNetUnfolderBase]: For 1648/1648 co-relation queries the response was YES. [2023-08-25 19:42:59,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2243 conditions, 552 events. 337/552 cut-off events. For 1648/1648 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1967 event pairs, 27 based on Foata normal form. 20/572 useless extension candidates. Maximal degree in co-relation 2229. Up to 283 conditions per place. [2023-08-25 19:42:59,821 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 43 selfloop transitions, 5 changer transitions 38/86 dead transitions. [2023-08-25 19:42:59,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 86 transitions, 658 flow [2023-08-25 19:42:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:42:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:42:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1283 transitions. [2023-08-25 19:42:59,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36531890660592253 [2023-08-25 19:42:59,826 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1283 transitions. [2023-08-25 19:42:59,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1283 transitions. [2023-08-25 19:42:59,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:59,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1283 transitions. [2023-08-25 19:42:59,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 160.375) internal successors, (1283), 8 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 439.0) internal successors, (3951), 9 states have internal predecessors, (3951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,834 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 439.0) internal successors, (3951), 9 states have internal predecessors, (3951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,835 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 182 flow. Second operand 8 states and 1283 transitions. [2023-08-25 19:42:59,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 86 transitions, 658 flow [2023-08-25 19:42:59,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 86 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:42:59,840 INFO L231 Difference]: Finished difference. Result has 56 places, 34 transitions, 237 flow [2023-08-25 19:42:59,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=237, PETRI_PLACES=56, PETRI_TRANSITIONS=34} [2023-08-25 19:42:59,840 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2023-08-25 19:42:59,841 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 34 transitions, 237 flow [2023-08-25 19:42:59,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.33333333333334) internal successors, (926), 6 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:42:59,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:59,841 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 19:42:59,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:42:59,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:42:59,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:59,842 INFO L85 PathProgramCache]: Analyzing trace with hash 866527750, now seen corresponding path program 1 times [2023-08-25 19:42:59,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:59,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060549453] [2023-08-25 19:42:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:59,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:00,119 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 19:43:00,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:00,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060549453] [2023-08-25 19:43:00,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060549453] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:00,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448027999] [2023-08-25 19:43:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:00,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:00,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:00,125 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 19:43:00,158 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 19:43:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:00,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 19:43:00,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:00,375 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 19:43:00,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:00,612 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 19:43:00,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448027999] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:00,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:00,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-25 19:43:00,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700402461] [2023-08-25 19:43:00,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:00,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 19:43:00,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:00,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 19:43:00,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-25 19:43:00,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 439 [2023-08-25 19:43:00,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 34 transitions, 237 flow. Second operand has 12 states, 12 states have (on average 154.16666666666666) internal successors, (1850), 12 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:00,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:00,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 439 [2023-08-25 19:43:00,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:01,150 INFO L124 PetriNetUnfolderBase]: 482/781 cut-off events. [2023-08-25 19:43:01,150 INFO L125 PetriNetUnfolderBase]: For 4079/4079 co-relation queries the response was YES. [2023-08-25 19:43:01,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3825 conditions, 781 events. 482/781 cut-off events. For 4079/4079 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2947 event pairs, 17 based on Foata normal form. 34/815 useless extension candidates. Maximal degree in co-relation 3805. Up to 253 conditions per place. [2023-08-25 19:43:01,156 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 70 selfloop transitions, 19 changer transitions 61/150 dead transitions. [2023-08-25 19:43:01,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 150 transitions, 1305 flow [2023-08-25 19:43:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 19:43:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 19:43:01,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2709 transitions. [2023-08-25 19:43:01,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3629907543883157 [2023-08-25 19:43:01,163 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2709 transitions. [2023-08-25 19:43:01,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2709 transitions. [2023-08-25 19:43:01,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:01,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2709 transitions. [2023-08-25 19:43:01,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 159.35294117647058) internal successors, (2709), 17 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have 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 L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 439.0) internal successors, (7902), 18 states have internal predecessors, (7902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,180 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 439.0) internal successors, (7902), 18 states have internal predecessors, (7902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,180 INFO L175 Difference]: Start difference. First operand has 56 places, 34 transitions, 237 flow. Second operand 17 states and 2709 transitions. [2023-08-25 19:43:01,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 150 transitions, 1305 flow [2023-08-25 19:43:01,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 150 transitions, 1260 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-25 19:43:01,190 INFO L231 Difference]: Finished difference. Result has 71 places, 42 transitions, 368 flow [2023-08-25 19:43:01,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=368, PETRI_PLACES=71, PETRI_TRANSITIONS=42} [2023-08-25 19:43:01,191 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 4 predicate places. [2023-08-25 19:43:01,191 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 42 transitions, 368 flow [2023-08-25 19:43:01,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 154.16666666666666) internal successors, (1850), 12 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:01,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:01,192 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 19:43:01,204 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 19:43:01,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:01,398 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:01,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:01,398 INFO L85 PathProgramCache]: Analyzing trace with hash -2128899185, now seen corresponding path program 3 times [2023-08-25 19:43:01,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:01,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213995813] [2023-08-25 19:43:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:01,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:01,744 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 19:43:01,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:01,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213995813] [2023-08-25 19:43:01,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213995813] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:01,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452202692] [2023-08-25 19:43:01,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:43:01,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:01,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:01,746 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 19:43:01,792 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 19:43:01,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-25 19:43:01,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:01,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 19:43:01,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:02,111 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 19:43:02,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:02,457 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 19:43:02,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452202692] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:02,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:02,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-08-25 19:43:02,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564657974] [2023-08-25 19:43:02,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:02,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-25 19:43:02,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-25 19:43:02,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-25 19:43:02,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:43:02,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 42 transitions, 368 flow. Second operand has 14 states, 14 states have (on average 152.28571428571428) internal successors, (2132), 14 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:02,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:02,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:43:02,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:03,839 INFO L124 PetriNetUnfolderBase]: 813/1316 cut-off events. [2023-08-25 19:43:03,840 INFO L125 PetriNetUnfolderBase]: For 17056/17056 co-relation queries the response was YES. [2023-08-25 19:43:03,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8088 conditions, 1316 events. 813/1316 cut-off events. For 17056/17056 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5533 event pairs, 11 based on Foata normal form. 74/1390 useless extension candidates. Maximal degree in co-relation 8063. Up to 411 conditions per place. [2023-08-25 19:43:03,851 INFO L140 encePairwiseOnDemand]: 429/439 looper letters, 121 selfloop transitions, 45 changer transitions 100/266 dead transitions. [2023-08-25 19:43:03,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 266 transitions, 3081 flow [2023-08-25 19:43:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-08-25 19:43:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-08-25 19:43:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 5929 transitions. [2023-08-25 19:43:03,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35541302002158015 [2023-08-25 19:43:03,866 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 5929 transitions. [2023-08-25 19:43:03,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 5929 transitions. [2023-08-25 19:43:03,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:03,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 5929 transitions. [2023-08-25 19:43:03,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 156.02631578947367) internal successors, (5929), 38 states have internal predecessors, (5929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 439.0) internal successors, (17121), 39 states have internal predecessors, (17121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,908 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 439.0) internal successors, (17121), 39 states have internal predecessors, (17121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,908 INFO L175 Difference]: Start difference. First operand has 71 places, 42 transitions, 368 flow. Second operand 38 states and 5929 transitions. [2023-08-25 19:43:03,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 266 transitions, 3081 flow [2023-08-25 19:43:03,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 266 transitions, 2491 flow, removed 238 selfloop flow, removed 11 redundant places. [2023-08-25 19:43:03,936 INFO L231 Difference]: Finished difference. Result has 113 places, 77 transitions, 927 flow [2023-08-25 19:43:03,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=927, PETRI_PLACES=113, PETRI_TRANSITIONS=77} [2023-08-25 19:43:03,937 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 46 predicate places. [2023-08-25 19:43:03,937 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 77 transitions, 927 flow [2023-08-25 19:43:03,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.28571428571428) internal successors, (2132), 14 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:03,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:03,944 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 19:43:03,957 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 19:43:04,149 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 19:43:04,150 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:04,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:04,150 INFO L85 PathProgramCache]: Analyzing trace with hash -242185114, now seen corresponding path program 1 times [2023-08-25 19:43:04,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811167564] [2023-08-25 19:43:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:04,581 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 19:43:04,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:04,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811167564] [2023-08-25 19:43:04,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811167564] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:04,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532948361] [2023-08-25 19:43:04,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:04,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:04,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:04,583 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 19:43:04,586 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 19:43:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:04,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-25 19:43:04,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:04,895 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 19:43:04,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:05,453 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 19:43:05,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532948361] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:05,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:05,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2023-08-25 19:43:05,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359273815] [2023-08-25 19:43:05,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:05,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-25 19:43:05,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:05,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-25 19:43:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-08-25 19:43:05,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:43:05,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 77 transitions, 927 flow. Second operand has 19 states, 19 states have (on average 151.94736842105263) internal successors, (2887), 19 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:05,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:05,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:43:05,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:07,242 INFO L124 PetriNetUnfolderBase]: 1085/1770 cut-off events. [2023-08-25 19:43:07,243 INFO L125 PetriNetUnfolderBase]: For 29838/29838 co-relation queries the response was YES. [2023-08-25 19:43:07,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11658 conditions, 1770 events. 1085/1770 cut-off events. For 29838/29838 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8086 event pairs, 9 based on Foata normal form. 64/1834 useless extension candidates. Maximal degree in co-relation 11616. Up to 501 conditions per place. [2023-08-25 19:43:07,261 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 164 selfloop transitions, 72 changer transitions 123/359 dead transitions. [2023-08-25 19:43:07,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 359 transitions, 4306 flow [2023-08-25 19:43:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-08-25 19:43:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-08-25 19:43:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 6125 transitions. [2023-08-25 19:43:07,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3577477951054261 [2023-08-25 19:43:07,273 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 6125 transitions. [2023-08-25 19:43:07,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 6125 transitions. [2023-08-25 19:43:07,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:07,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 6125 transitions. [2023-08-25 19:43:07,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 157.05128205128204) internal successors, (6125), 39 states have internal predecessors, (6125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:07,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 439.0) internal successors, (17560), 40 states have internal predecessors, (17560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:07,308 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 439.0) internal successors, (17560), 40 states have internal predecessors, (17560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:07,308 INFO L175 Difference]: Start difference. First operand has 113 places, 77 transitions, 927 flow. Second operand 39 states and 6125 transitions. [2023-08-25 19:43:07,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 359 transitions, 4306 flow [2023-08-25 19:43:07,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 359 transitions, 2703 flow, removed 719 selfloop flow, removed 26 redundant places. [2023-08-25 19:43:07,457 INFO L231 Difference]: Finished difference. Result has 114 places, 104 transitions, 913 flow [2023-08-25 19:43:07,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=913, PETRI_PLACES=114, PETRI_TRANSITIONS=104} [2023-08-25 19:43:07,458 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 47 predicate places. [2023-08-25 19:43:07,458 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 104 transitions, 913 flow [2023-08-25 19:43:07,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 151.94736842105263) internal successors, (2887), 19 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:07,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:07,459 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 19:43:07,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-25 19:43:07,664 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 19:43:07,664 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:07,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:07,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1992388969, now seen corresponding path program 2 times [2023-08-25 19:43:07,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:07,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656356455] [2023-08-25 19:43:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:07,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:08,033 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 19:43:08,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:08,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656356455] [2023-08-25 19:43:08,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656356455] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:08,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764390872] [2023-08-25 19:43:08,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:43:08,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:08,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:08,035 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 19:43:08,038 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 19:43:08,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:43:08,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:08,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 19:43:08,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:08,310 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 19:43:08,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:08,987 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 19:43:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764390872] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:08,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:08,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-08-25 19:43:08,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407455524] [2023-08-25 19:43:08,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:08,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 19:43:08,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 19:43:08,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-08-25 19:43:08,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:43:08,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 104 transitions, 913 flow. Second operand has 18 states, 18 states have (on average 150.05555555555554) internal successors, (2701), 18 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:08,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:08,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:43:08,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:11,212 INFO L124 PetriNetUnfolderBase]: 1527/2474 cut-off events. [2023-08-25 19:43:11,213 INFO L125 PetriNetUnfolderBase]: For 12581/12581 co-relation queries the response was YES. [2023-08-25 19:43:11,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11682 conditions, 2474 events. 1527/2474 cut-off events. For 12581/12581 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11814 event pairs, 25 based on Foata normal form. 90/2564 useless extension candidates. Maximal degree in co-relation 11651. Up to 422 conditions per place. [2023-08-25 19:43:11,239 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 205 selfloop transitions, 108 changer transitions 117/430 dead transitions. [2023-08-25 19:43:11,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 430 transitions, 4175 flow [2023-08-25 19:43:11,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-08-25 19:43:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-08-25 19:43:11,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 7099 transitions. [2023-08-25 19:43:11,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35154006140437755 [2023-08-25 19:43:11,252 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 7099 transitions. [2023-08-25 19:43:11,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 7099 transitions. [2023-08-25 19:43:11,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:11,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 7099 transitions. [2023-08-25 19:43:11,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 154.32608695652175) internal successors, (7099), 46 states have internal predecessors, (7099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:11,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 439.0) internal successors, (20633), 47 states have internal predecessors, (20633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:11,286 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 439.0) internal successors, (20633), 47 states have internal predecessors, (20633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:11,286 INFO L175 Difference]: Start difference. First operand has 114 places, 104 transitions, 913 flow. Second operand 46 states and 7099 transitions. [2023-08-25 19:43:11,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 430 transitions, 4175 flow [2023-08-25 19:43:11,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 430 transitions, 3632 flow, removed 169 selfloop flow, removed 22 redundant places. [2023-08-25 19:43:11,345 INFO L231 Difference]: Finished difference. Result has 139 places, 165 transitions, 1629 flow [2023-08-25 19:43:11,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=1629, PETRI_PLACES=139, PETRI_TRANSITIONS=165} [2023-08-25 19:43:11,346 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 72 predicate places. [2023-08-25 19:43:11,346 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 165 transitions, 1629 flow [2023-08-25 19:43:11,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 150.05555555555554) internal successors, (2701), 18 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:11,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:11,347 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] [2023-08-25 19:43:11,356 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 19:43:11,551 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 19:43:11,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:11,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1448542430, now seen corresponding path program 2 times [2023-08-25 19:43:11,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:11,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082148049] [2023-08-25 19:43:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:11,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:11,924 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082148049] [2023-08-25 19:43:11,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082148049] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259903401] [2023-08-25 19:43:11,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:43:11,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:11,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:11,927 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 19:43:11,931 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 19:43:12,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:43:12,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:12,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-25 19:43:12,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:12,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:12,725 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:12,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259903401] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:12,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:12,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-08-25 19:43:12,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559170905] [2023-08-25 19:43:12,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:12,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 19:43:12,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:12,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 19:43:12,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-08-25 19:43:12,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:43:12,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 165 transitions, 1629 flow. Second operand has 18 states, 18 states have (on average 152.11111111111111) internal successors, (2738), 18 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:12,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:12,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:43:12,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:14,901 INFO L124 PetriNetUnfolderBase]: 1879/3036 cut-off events. [2023-08-25 19:43:14,901 INFO L125 PetriNetUnfolderBase]: For 36596/36596 co-relation queries the response was YES. [2023-08-25 19:43:14,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16412 conditions, 3036 events. 1879/3036 cut-off events. For 36596/36596 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 14938 event pairs, 41 based on Foata normal form. 152/3188 useless extension candidates. Maximal degree in co-relation 16373. Up to 704 conditions per place. [2023-08-25 19:43:14,932 INFO L140 encePairwiseOnDemand]: 429/439 looper letters, 175 selfloop transitions, 100 changer transitions 207/482 dead transitions. [2023-08-25 19:43:14,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 482 transitions, 5641 flow [2023-08-25 19:43:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-08-25 19:43:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-08-25 19:43:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 7632 transitions. [2023-08-25 19:43:14,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3547952210496955 [2023-08-25 19:43:14,942 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 7632 transitions. [2023-08-25 19:43:14,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 7632 transitions. [2023-08-25 19:43:14,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:14,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 7632 transitions. [2023-08-25 19:43:14,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 155.75510204081633) internal successors, (7632), 49 states have internal predecessors, (7632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:14,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 439.0) internal successors, (21950), 50 states have internal predecessors, (21950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:14,976 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 439.0) internal successors, (21950), 50 states have internal predecessors, (21950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:14,977 INFO L175 Difference]: Start difference. First operand has 139 places, 165 transitions, 1629 flow. Second operand 49 states and 7632 transitions. [2023-08-25 19:43:14,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 482 transitions, 5641 flow [2023-08-25 19:43:15,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 482 transitions, 4479 flow, removed 501 selfloop flow, removed 26 redundant places. [2023-08-25 19:43:15,113 INFO L231 Difference]: Finished difference. Result has 173 places, 174 transitions, 1775 flow [2023-08-25 19:43:15,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=1269, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=1775, PETRI_PLACES=173, PETRI_TRANSITIONS=174} [2023-08-25 19:43:15,114 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 106 predicate places. [2023-08-25 19:43:15,114 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 174 transitions, 1775 flow [2023-08-25 19:43:15,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 152.11111111111111) internal successors, (2738), 18 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:15,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:15,115 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 19:43:15,121 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 19:43:15,320 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 19:43:15,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:15,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:15,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1911737114, now seen corresponding path program 3 times [2023-08-25 19:43:15,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:15,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051690360] [2023-08-25 19:43:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:15,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:15,761 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 19:43:15,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:15,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051690360] [2023-08-25 19:43:15,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051690360] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:15,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851809822] [2023-08-25 19:43:15,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:43:15,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:15,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:15,764 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 19:43:15,788 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 19:43:15,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-08-25 19:43:15,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:15,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 19:43:15,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:16,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:16,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851809822] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:16,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:16,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2023-08-25 19:43:16,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723402429] [2023-08-25 19:43:16,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:16,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-25 19:43:16,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:16,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-25 19:43:16,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2023-08-25 19:43:16,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:43:16,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 174 transitions, 1775 flow. Second operand has 20 states, 20 states have (on average 150.05) internal successors, (3001), 20 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:16,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:16,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:43:16,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:20,139 INFO L124 PetriNetUnfolderBase]: 2395/3872 cut-off events. [2023-08-25 19:43:20,139 INFO L125 PetriNetUnfolderBase]: For 77685/77685 co-relation queries the response was YES. [2023-08-25 19:43:20,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23139 conditions, 3872 events. 2395/3872 cut-off events. For 77685/77685 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 19920 event pairs, 103 based on Foata normal form. 130/4002 useless extension candidates. Maximal degree in co-relation 23086. Up to 928 conditions per place. [2023-08-25 19:43:20,173 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 275 selfloop transitions, 136 changer transitions 194/605 dead transitions. [2023-08-25 19:43:20,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 605 transitions, 7466 flow [2023-08-25 19:43:20,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-08-25 19:43:20,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-08-25 19:43:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 10775 transitions. [2023-08-25 19:43:20,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35063455906280505 [2023-08-25 19:43:20,194 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 10775 transitions. [2023-08-25 19:43:20,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 10775 transitions. [2023-08-25 19:43:20,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:20,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 10775 transitions. [2023-08-25 19:43:20,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 153.92857142857142) internal successors, (10775), 70 states have internal predecessors, (10775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:20,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 439.0) internal successors, (31169), 71 states have internal predecessors, (31169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:20,238 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 439.0) internal successors, (31169), 71 states have internal predecessors, (31169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:20,238 INFO L175 Difference]: Start difference. First operand has 173 places, 174 transitions, 1775 flow. Second operand 70 states and 10775 transitions. [2023-08-25 19:43:20,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 605 transitions, 7466 flow [2023-08-25 19:43:20,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 605 transitions, 6293 flow, removed 565 selfloop flow, removed 33 redundant places. [2023-08-25 19:43:20,386 INFO L231 Difference]: Finished difference. Result has 214 places, 232 transitions, 2661 flow [2023-08-25 19:43:20,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=1544, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=70, PETRI_FLOW=2661, PETRI_PLACES=214, PETRI_TRANSITIONS=232} [2023-08-25 19:43:20,387 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 147 predicate places. [2023-08-25 19:43:20,387 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 232 transitions, 2661 flow [2023-08-25 19:43:20,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 150.05) internal successors, (3001), 20 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:20,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:20,388 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:20,395 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 19:43:20,594 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 19:43:20,594 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:20,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:20,594 INFO L85 PathProgramCache]: Analyzing trace with hash 110449351, now seen corresponding path program 4 times [2023-08-25 19:43:20,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:20,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224686257] [2023-08-25 19:43:20,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:20,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:21,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:21,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224686257] [2023-08-25 19:43:21,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224686257] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:21,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312973900] [2023-08-25 19:43:21,138 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:43:21,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:21,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:21,139 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 19:43:21,142 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 19:43:21,313 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:43:21,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:21,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 19:43:21,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:21,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:22,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312973900] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:22,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:22,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:43:22,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713616385] [2023-08-25 19:43:22,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:22,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:43:22,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:22,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:43:22,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:43:22,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 439 [2023-08-25 19:43:22,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 232 transitions, 2661 flow. Second operand has 25 states, 25 states have (on average 153.8) internal successors, (3845), 25 states have internal predecessors, (3845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:22,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:22,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 439 [2023-08-25 19:43:22,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:26,370 INFO L124 PetriNetUnfolderBase]: 3253/5310 cut-off events. [2023-08-25 19:43:26,370 INFO L125 PetriNetUnfolderBase]: For 205533/205533 co-relation queries the response was YES. [2023-08-25 19:43:26,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38383 conditions, 5310 events. 3253/5310 cut-off events. For 205533/205533 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 29011 event pairs, 147 based on Foata normal form. 118/5428 useless extension candidates. Maximal degree in co-relation 38316. Up to 1484 conditions per place. [2023-08-25 19:43:26,434 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 340 selfloop transitions, 169 changer transitions 294/803 dead transitions. [2023-08-25 19:43:26,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 803 transitions, 12131 flow [2023-08-25 19:43:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-08-25 19:43:26,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2023-08-25 19:43:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 10975 transitions. [2023-08-25 19:43:26,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36231884057971014 [2023-08-25 19:43:26,446 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 10975 transitions. [2023-08-25 19:43:26,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 10975 transitions. [2023-08-25 19:43:26,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:26,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 10975 transitions. [2023-08-25 19:43:26,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 159.05797101449275) internal successors, (10975), 69 states have internal predecessors, (10975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:26,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 439.0) internal successors, (30730), 70 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:26,484 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 439.0) internal successors, (30730), 70 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:26,484 INFO L175 Difference]: Start difference. First operand has 214 places, 232 transitions, 2661 flow. Second operand 69 states and 10975 transitions. [2023-08-25 19:43:26,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 803 transitions, 12131 flow [2023-08-25 19:43:26,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 803 transitions, 8724 flow, removed 1679 selfloop flow, removed 49 redundant places. [2023-08-25 19:43:26,842 INFO L231 Difference]: Finished difference. Result has 218 places, 303 transitions, 3611 flow [2023-08-25 19:43:26,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=2278, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=69, PETRI_FLOW=3611, PETRI_PLACES=218, PETRI_TRANSITIONS=303} [2023-08-25 19:43:26,843 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 151 predicate places. [2023-08-25 19:43:26,843 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 303 transitions, 3611 flow [2023-08-25 19:43:26,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 153.8) internal successors, (3845), 25 states have internal predecessors, (3845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:26,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:26,844 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 19:43:26,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-25 19:43:27,044 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 19:43:27,045 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:27,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:27,045 INFO L85 PathProgramCache]: Analyzing trace with hash -517242141, now seen corresponding path program 4 times [2023-08-25 19:43:27,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:27,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27876979] [2023-08-25 19:43:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:27,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:27,557 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 19:43:27,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:27,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27876979] [2023-08-25 19:43:27,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27876979] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:27,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812273828] [2023-08-25 19:43:27,557 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:43:27,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:27,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:27,561 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 19:43:27,583 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 19:43:27,737 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:43:27,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:27,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 19:43:27,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:28,173 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 19:43:28,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:29,308 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 19:43:29,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812273828] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:29,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:29,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:43:29,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594935320] [2023-08-25 19:43:29,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:29,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:43:29,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:29,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:43:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:43:29,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:43:29,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 303 transitions, 3611 flow. Second operand has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:29,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:29,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:43:29,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:34,244 INFO L124 PetriNetUnfolderBase]: 4078/6645 cut-off events. [2023-08-25 19:43:34,244 INFO L125 PetriNetUnfolderBase]: For 91951/91951 co-relation queries the response was YES. [2023-08-25 19:43:34,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40987 conditions, 6645 events. 4078/6645 cut-off events. For 91951/91951 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 38494 event pairs, 111 based on Foata normal form. 100/6745 useless extension candidates. Maximal degree in co-relation 40936. Up to 1528 conditions per place. [2023-08-25 19:43:34,301 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 438 selfloop transitions, 237 changer transitions 193/868 dead transitions. [2023-08-25 19:43:34,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 868 transitions, 12289 flow [2023-08-25 19:43:34,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-08-25 19:43:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2023-08-25 19:43:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 10800 transitions. [2023-08-25 19:43:34,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3565415469941567 [2023-08-25 19:43:34,313 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 10800 transitions. [2023-08-25 19:43:34,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 10800 transitions. [2023-08-25 19:43:34,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:34,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 10800 transitions. [2023-08-25 19:43:34,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 156.52173913043478) internal successors, (10800), 69 states have internal predecessors, (10800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:34,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 439.0) internal successors, (30730), 70 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:34,356 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 439.0) internal successors, (30730), 70 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:34,356 INFO L175 Difference]: Start difference. First operand has 218 places, 303 transitions, 3611 flow. Second operand 69 states and 10800 transitions. [2023-08-25 19:43:34,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 868 transitions, 12289 flow [2023-08-25 19:43:34,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 868 transitions, 10687 flow, removed 777 selfloop flow, removed 30 redundant places. [2023-08-25 19:43:34,594 INFO L231 Difference]: Finished difference. Result has 245 places, 413 transitions, 5401 flow [2023-08-25 19:43:34,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=3123, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=69, PETRI_FLOW=5401, PETRI_PLACES=245, PETRI_TRANSITIONS=413} [2023-08-25 19:43:34,594 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 178 predicate places. [2023-08-25 19:43:34,595 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 413 transitions, 5401 flow [2023-08-25 19:43:34,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:34,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:34,595 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:43:34,600 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 19:43:34,795 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 19:43:34,796 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:34,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash -658019738, now seen corresponding path program 5 times [2023-08-25 19:43:34,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:34,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42790021] [2023-08-25 19:43:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:34,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:35,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:35,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42790021] [2023-08-25 19:43:35,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42790021] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:35,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158172990] [2023-08-25 19:43:35,221 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:43:35,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:35,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:35,225 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 19:43:35,253 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 19:43:35,375 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-08-25 19:43:35,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:35,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 19:43:35,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:35,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:36,602 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:43:36,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158172990] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:36,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:36,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:43:36,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271504197] [2023-08-25 19:43:36,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:36,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:43:36,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:36,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:43:36,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:43:36,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:43:36,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 413 transitions, 5401 flow. Second operand has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:36,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:36,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:43:36,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:41,972 INFO L124 PetriNetUnfolderBase]: 5772/9461 cut-off events. [2023-08-25 19:43:41,972 INFO L125 PetriNetUnfolderBase]: For 129087/129087 co-relation queries the response was YES. [2023-08-25 19:43:42,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60882 conditions, 9461 events. 5772/9461 cut-off events. For 129087/129087 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 59032 event pairs, 117 based on Foata normal form. 258/9719 useless extension candidates. Maximal degree in co-relation 60830. Up to 1774 conditions per place. [2023-08-25 19:43:42,050 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 453 selfloop transitions, 323 changer transitions 403/1179 dead transitions. [2023-08-25 19:43:42,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1179 transitions, 16860 flow [2023-08-25 19:43:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-08-25 19:43:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2023-08-25 19:43:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 12098 transitions. [2023-08-25 19:43:42,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35789722805668134 [2023-08-25 19:43:42,063 INFO L72 ComplementDD]: Start complementDD. Operand 77 states and 12098 transitions. [2023-08-25 19:43:42,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 12098 transitions. [2023-08-25 19:43:42,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:42,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 77 states and 12098 transitions. [2023-08-25 19:43:42,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 78 states, 77 states have (on average 157.11688311688312) internal successors, (12098), 77 states have internal predecessors, (12098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:42,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 78 states, 78 states have (on average 439.0) internal successors, (34242), 78 states have internal predecessors, (34242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:42,107 INFO L81 ComplementDD]: Finished complementDD. Result has 78 states, 78 states have (on average 439.0) internal successors, (34242), 78 states have internal predecessors, (34242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:42,108 INFO L175 Difference]: Start difference. First operand has 245 places, 413 transitions, 5401 flow. Second operand 77 states and 12098 transitions. [2023-08-25 19:43:42,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1179 transitions, 16860 flow [2023-08-25 19:43:42,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 1179 transitions, 14144 flow, removed 1147 selfloop flow, removed 31 redundant places. [2023-08-25 19:43:42,718 INFO L231 Difference]: Finished difference. Result has 285 places, 510 transitions, 6887 flow [2023-08-25 19:43:42,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=4566, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=77, PETRI_FLOW=6887, PETRI_PLACES=285, PETRI_TRANSITIONS=510} [2023-08-25 19:43:42,719 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 218 predicate places. [2023-08-25 19:43:42,719 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 510 transitions, 6887 flow [2023-08-25 19:43:42,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:42,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:42,719 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 19:43:42,725 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 19:43:42,920 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 19:43:42,920 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:42,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1273403098, now seen corresponding path program 6 times [2023-08-25 19:43:42,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:42,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958352973] [2023-08-25 19:43:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:43,388 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 19:43:43,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:43,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958352973] [2023-08-25 19:43:43,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958352973] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:43,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544942986] [2023-08-25 19:43:43,389 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 19:43:43,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:43,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:43,390 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 19:43:43,408 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 19:43:43,614 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-08-25 19:43:43,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:43:43,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 19:43:43,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:43,972 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 19:43:43,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:44,933 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 19:43:44,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544942986] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:44,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:44,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:43:44,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24294277] [2023-08-25 19:43:44,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:44,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:43:44,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:44,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:43:44,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:43:44,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:43:44,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 510 transitions, 6887 flow. Second operand has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:44,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:44,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:43:44,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:49,628 INFO L124 PetriNetUnfolderBase]: 6477/10516 cut-off events. [2023-08-25 19:43:49,628 INFO L125 PetriNetUnfolderBase]: For 149497/149497 co-relation queries the response was YES. [2023-08-25 19:43:49,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65920 conditions, 10516 events. 6477/10516 cut-off events. For 149497/149497 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 66001 event pairs, 305 based on Foata normal form. 148/10664 useless extension candidates. Maximal degree in co-relation 65864. Up to 3082 conditions per place. [2023-08-25 19:43:49,708 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 538 selfloop transitions, 316 changer transitions 277/1131 dead transitions. [2023-08-25 19:43:49,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 1131 transitions, 17369 flow [2023-08-25 19:43:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-08-25 19:43:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-08-25 19:43:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 10626 transitions. [2023-08-25 19:43:49,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35595604984590645 [2023-08-25 19:43:49,718 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 10626 transitions. [2023-08-25 19:43:49,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 10626 transitions. [2023-08-25 19:43:49,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:49,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 10626 transitions. [2023-08-25 19:43:49,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 156.26470588235293) internal successors, (10626), 68 states have internal predecessors, (10626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:49,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 439.0) internal successors, (30291), 69 states have internal predecessors, (30291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:49,756 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 439.0) internal successors, (30291), 69 states have internal predecessors, (30291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:49,756 INFO L175 Difference]: Start difference. First operand has 285 places, 510 transitions, 6887 flow. Second operand 68 states and 10626 transitions. [2023-08-25 19:43:49,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 1131 transitions, 17369 flow [2023-08-25 19:43:50,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 1131 transitions, 15567 flow, removed 846 selfloop flow, removed 39 redundant places. [2023-08-25 19:43:50,537 INFO L231 Difference]: Finished difference. Result has 306 places, 620 transitions, 9003 flow [2023-08-25 19:43:50,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=6111, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=68, PETRI_FLOW=9003, PETRI_PLACES=306, PETRI_TRANSITIONS=620} [2023-08-25 19:43:50,538 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 239 predicate places. [2023-08-25 19:43:50,538 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 620 transitions, 9003 flow [2023-08-25 19:43:50,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:50,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:50,539 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 19:43:50,548 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 19:43:50,744 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 19:43:50,744 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:50,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:50,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1391382465, now seen corresponding path program 7 times [2023-08-25 19:43:50,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:50,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454236937] [2023-08-25 19:43:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:50,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:51,304 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 19:43:51,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:43:51,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454236937] [2023-08-25 19:43:51,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454236937] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:43:51,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561361555] [2023-08-25 19:43:51,305 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 19:43:51,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:43:51,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:43:51,306 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 19:43:51,332 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 19:43:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:43:51,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 19:43:51,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:43:51,948 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 19:43:51,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:43:52,894 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 19:43:52,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561361555] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:43:52,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:43:52,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:43:52,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457695888] [2023-08-25 19:43:52,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:43:52,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:43:52,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:43:52,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:43:52,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:43:52,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:43:52,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 620 transitions, 9003 flow. Second operand has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:52,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:43:52,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:43:52,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:43:58,667 INFO L124 PetriNetUnfolderBase]: 7542/12303 cut-off events. [2023-08-25 19:43:58,668 INFO L125 PetriNetUnfolderBase]: For 150307/150307 co-relation queries the response was YES. [2023-08-25 19:43:58,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77645 conditions, 12303 events. 7542/12303 cut-off events. For 150307/150307 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 79807 event pairs, 163 based on Foata normal form. 224/12527 useless extension candidates. Maximal degree in co-relation 77584. Up to 2990 conditions per place. [2023-08-25 19:43:58,920 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 585 selfloop transitions, 411 changer transitions 303/1299 dead transitions. [2023-08-25 19:43:58,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 1299 transitions, 19773 flow [2023-08-25 19:43:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-08-25 19:43:58,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-08-25 19:43:58,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 11002 transitions. [2023-08-25 19:43:58,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3580214773836642 [2023-08-25 19:43:58,930 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 11002 transitions. [2023-08-25 19:43:58,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 11002 transitions. [2023-08-25 19:43:58,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:43:58,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 11002 transitions. [2023-08-25 19:43:58,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 157.17142857142858) internal successors, (11002), 70 states have internal predecessors, (11002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:58,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 439.0) internal successors, (31169), 71 states have internal predecessors, (31169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:58,968 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 439.0) internal successors, (31169), 71 states have internal predecessors, (31169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:58,969 INFO L175 Difference]: Start difference. First operand has 306 places, 620 transitions, 9003 flow. Second operand 70 states and 11002 transitions. [2023-08-25 19:43:58,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 1299 transitions, 19773 flow [2023-08-25 19:43:59,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 1299 transitions, 16850 flow, removed 1050 selfloop flow, removed 34 redundant places. [2023-08-25 19:43:59,529 INFO L231 Difference]: Finished difference. Result has 334 places, 703 transitions, 10580 flow [2023-08-25 19:43:59,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=7776, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=70, PETRI_FLOW=10580, PETRI_PLACES=334, PETRI_TRANSITIONS=703} [2023-08-25 19:43:59,530 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 267 predicate places. [2023-08-25 19:43:59,530 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 703 transitions, 10580 flow [2023-08-25 19:43:59,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:43:59,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:43:59,531 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 19:43:59,536 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 19:43:59,731 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 19:43:59,732 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:43:59,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:43:59,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2141173906, now seen corresponding path program 8 times [2023-08-25 19:43:59,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:43:59,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317136690] [2023-08-25 19:43:59,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:43:59,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:43:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:44:00,211 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 19:44:00,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:44:00,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317136690] [2023-08-25 19:44:00,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317136690] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:44:00,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223925710] [2023-08-25 19:44:00,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:44:00,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:00,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:44:00,217 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 19:44:00,220 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 19:44:00,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:44:00,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:44:00,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 19:44:00,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:44:00,797 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 19:44:00,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:44:02,042 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 19:44:02,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223925710] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:44:02,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:44:02,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:44:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454234204] [2023-08-25 19:44:02,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:44:02,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:44:02,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:44:02,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:44:02,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:44:02,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:44:02,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 703 transitions, 10580 flow. Second operand has 25 states, 25 states have (on average 150.04) internal successors, (3751), 25 states have internal predecessors, (3751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:02,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:44:02,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:44:02,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:44:08,927 INFO L124 PetriNetUnfolderBase]: 8030/13055 cut-off events. [2023-08-25 19:44:08,927 INFO L125 PetriNetUnfolderBase]: For 148857/148857 co-relation queries the response was YES. [2023-08-25 19:44:09,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80393 conditions, 13055 events. 8030/13055 cut-off events. For 148857/148857 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 85228 event pairs, 317 based on Foata normal form. 204/13259 useless extension candidates. Maximal degree in co-relation 80326. Up to 3952 conditions per place. [2023-08-25 19:44:09,054 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 642 selfloop transitions, 430 changer transitions 252/1324 dead transitions. [2023-08-25 19:44:09,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 1324 transitions, 20234 flow [2023-08-25 19:44:09,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-08-25 19:44:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2023-08-25 19:44:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 12935 transitions. [2023-08-25 19:44:09,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3507701486061395 [2023-08-25 19:44:09,067 INFO L72 ComplementDD]: Start complementDD. Operand 84 states and 12935 transitions. [2023-08-25 19:44:09,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 12935 transitions. [2023-08-25 19:44:09,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:44:09,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 84 states and 12935 transitions. [2023-08-25 19:44:09,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 85 states, 84 states have (on average 153.98809523809524) internal successors, (12935), 84 states have internal predecessors, (12935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:09,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 85 states, 85 states have (on average 439.0) internal successors, (37315), 85 states have internal predecessors, (37315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:09,120 INFO L81 ComplementDD]: Finished complementDD. Result has 85 states, 85 states have (on average 439.0) internal successors, (37315), 85 states have internal predecessors, (37315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:09,120 INFO L175 Difference]: Start difference. First operand has 334 places, 703 transitions, 10580 flow. Second operand 84 states and 12935 transitions. [2023-08-25 19:44:09,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 1324 transitions, 20234 flow [2023-08-25 19:44:10,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 1324 transitions, 18895 flow, removed 612 selfloop flow, removed 34 redundant places. [2023-08-25 19:44:10,070 INFO L231 Difference]: Finished difference. Result has 410 places, 802 transitions, 13184 flow [2023-08-25 19:44:10,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=9737, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=311, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=84, PETRI_FLOW=13184, PETRI_PLACES=410, PETRI_TRANSITIONS=802} [2023-08-25 19:44:10,071 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 343 predicate places. [2023-08-25 19:44:10,071 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 802 transitions, 13184 flow [2023-08-25 19:44:10,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 150.04) internal successors, (3751), 25 states have internal predecessors, (3751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:10,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:44:10,072 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 19:44:10,080 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 19:44:10,277 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 19:44:10,278 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:44:10,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:44:10,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1300189804, now seen corresponding path program 9 times [2023-08-25 19:44:10,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:44:10,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026992757] [2023-08-25 19:44:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:44:10,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:44:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:44:10,782 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 19:44:10,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:44:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026992757] [2023-08-25 19:44:10,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026992757] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:44:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874591568] [2023-08-25 19:44:10,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:44:10,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:10,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:44:10,783 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 19:44:10,804 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 19:44:11,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-25 19:44:11,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:44:11,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 19:44:11,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:44:11,435 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 19:44:11,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:44:12,507 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 19:44:12,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874591568] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:44:12,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:44:12,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:44:12,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226966362] [2023-08-25 19:44:12,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:44:12,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:44:12,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:44:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:44:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:44:12,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:44:12,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 802 transitions, 13184 flow. Second operand has 25 states, 25 states have (on average 150.04) internal successors, (3751), 25 states have internal predecessors, (3751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:12,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:44:12,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:44:12,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:44:20,027 INFO L124 PetriNetUnfolderBase]: 8694/14155 cut-off events. [2023-08-25 19:44:20,027 INFO L125 PetriNetUnfolderBase]: For 433460/433460 co-relation queries the response was YES. [2023-08-25 19:44:20,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109286 conditions, 14155 events. 8694/14155 cut-off events. For 433460/433460 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 93641 event pairs, 677 based on Foata normal form. 136/14291 useless extension candidates. Maximal degree in co-relation 109182. Up to 5742 conditions per place. [2023-08-25 19:44:20,183 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 780 selfloop transitions, 380 changer transitions 172/1332 dead transitions. [2023-08-25 19:44:20,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 1332 transitions, 23606 flow [2023-08-25 19:44:20,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-08-25 19:44:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2023-08-25 19:44:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 11264 transitions. [2023-08-25 19:44:20,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35148375823009953 [2023-08-25 19:44:20,194 INFO L72 ComplementDD]: Start complementDD. Operand 73 states and 11264 transitions. [2023-08-25 19:44:20,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 11264 transitions. [2023-08-25 19:44:20,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:44:20,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 73 states and 11264 transitions. [2023-08-25 19:44:20,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 74 states, 73 states have (on average 154.3013698630137) internal successors, (11264), 73 states have internal predecessors, (11264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:20,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 74 states, 74 states have (on average 439.0) internal successors, (32486), 74 states have internal predecessors, (32486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:20,310 INFO L81 ComplementDD]: Finished complementDD. Result has 74 states, 74 states have (on average 439.0) internal successors, (32486), 74 states have internal predecessors, (32486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:20,310 INFO L175 Difference]: Start difference. First operand has 410 places, 802 transitions, 13184 flow. Second operand 73 states and 11264 transitions. [2023-08-25 19:44:20,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 1332 transitions, 23606 flow [2023-08-25 19:44:21,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 1332 transitions, 21042 flow, removed 1218 selfloop flow, removed 53 redundant places. [2023-08-25 19:44:21,662 INFO L231 Difference]: Finished difference. Result has 424 places, 895 transitions, 15490 flow [2023-08-25 19:44:21,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=12358, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=802, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=281, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=73, PETRI_FLOW=15490, PETRI_PLACES=424, PETRI_TRANSITIONS=895} [2023-08-25 19:44:21,663 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 357 predicate places. [2023-08-25 19:44:21,663 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 895 transitions, 15490 flow [2023-08-25 19:44:21,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 150.04) internal successors, (3751), 25 states have internal predecessors, (3751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:21,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:44:21,664 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 19:44:21,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-08-25 19:44:21,864 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 19:44:21,864 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:44:21,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:44:21,865 INFO L85 PathProgramCache]: Analyzing trace with hash 179422992, now seen corresponding path program 10 times [2023-08-25 19:44:21,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:44:21,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179788856] [2023-08-25 19:44:21,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:44:21,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:44:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:44:22,420 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 19:44:22,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:44:22,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179788856] [2023-08-25 19:44:22,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179788856] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:44:22,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233432954] [2023-08-25 19:44:22,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:44:22,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:22,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:44:22,426 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 19:44:22,430 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 19:44:22,626 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:44:22,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:44:22,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 19:44:22,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:44:23,027 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 19:44:23,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:44:24,114 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 19:44:24,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233432954] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:44:24,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:44:24,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 19:44:24,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68296310] [2023-08-25 19:44:24,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:44:24,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:44:24,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:44:24,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:44:24,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2023-08-25 19:44:24,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:44:24,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 895 transitions, 15490 flow. Second operand has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:24,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:44:24,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:44:24,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:44:31,783 INFO L124 PetriNetUnfolderBase]: 9678/15761 cut-off events. [2023-08-25 19:44:31,783 INFO L125 PetriNetUnfolderBase]: For 441594/441594 co-relation queries the response was YES. [2023-08-25 19:44:32,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124408 conditions, 15761 events. 9678/15761 cut-off events. For 441594/441594 co-relation queries the response was YES. Maximal size of possible extension queue 594. Compared 106497 event pairs, 657 based on Foata normal form. 122/15883 useless extension candidates. Maximal degree in co-relation 124300. Up to 5788 conditions per place. [2023-08-25 19:44:32,069 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 844 selfloop transitions, 418 changer transitions 211/1473 dead transitions. [2023-08-25 19:44:32,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 1473 transitions, 27634 flow [2023-08-25 19:44:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-08-25 19:44:32,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2023-08-25 19:44:32,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 10784 transitions. [2023-08-25 19:44:32,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3560133372949061 [2023-08-25 19:44:32,075 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 10784 transitions. [2023-08-25 19:44:32,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 10784 transitions. [2023-08-25 19:44:32,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:44:32,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 10784 transitions. [2023-08-25 19:44:32,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 156.28985507246378) internal successors, (10784), 69 states have internal predecessors, (10784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:32,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 439.0) internal successors, (30730), 70 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:32,108 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 439.0) internal successors, (30730), 70 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:32,108 INFO L175 Difference]: Start difference. First operand has 424 places, 895 transitions, 15490 flow. Second operand 69 states and 10784 transitions. [2023-08-25 19:44:32,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 1473 transitions, 27634 flow [2023-08-25 19:44:33,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1473 transitions, 25356 flow, removed 1105 selfloop flow, removed 38 redundant places. [2023-08-25 19:44:33,896 INFO L231 Difference]: Finished difference. Result has 447 places, 976 transitions, 17662 flow [2023-08-25 19:44:33,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=14770, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=69, PETRI_FLOW=17662, PETRI_PLACES=447, PETRI_TRANSITIONS=976} [2023-08-25 19:44:33,897 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 380 predicate places. [2023-08-25 19:44:33,897 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 976 transitions, 17662 flow [2023-08-25 19:44:33,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 151.72) internal successors, (3793), 25 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:33,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:44:33,898 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:44:33,905 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 19:44:34,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:34,099 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:44:34,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:44:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash 265456131, now seen corresponding path program 11 times [2023-08-25 19:44:34,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:44:34,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645466092] [2023-08-25 19:44:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:44:34,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:44:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:44:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:34,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:44:34,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645466092] [2023-08-25 19:44:34,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645466092] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:44:34,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77607511] [2023-08-25 19:44:34,761 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:44:34,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:34,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:44:34,763 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:44:34,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-25 19:44:34,937 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-08-25 19:44:34,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:44:34,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:44:34,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:44:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:35,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:44:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:36,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77607511] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:44:36,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:44:36,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-08-25 19:44:36,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860485849] [2023-08-25 19:44:36,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:44:36,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 19:44:36,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:44:36,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 19:44:36,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2023-08-25 19:44:36,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:44:36,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 976 transitions, 17662 flow. Second operand has 27 states, 27 states have (on average 151.74074074074073) internal successors, (4097), 27 states have internal predecessors, (4097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:36,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:44:36,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:44:36,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:44:45,992 INFO L124 PetriNetUnfolderBase]: 11743/19178 cut-off events. [2023-08-25 19:44:45,993 INFO L125 PetriNetUnfolderBase]: For 383377/383377 co-relation queries the response was YES. [2023-08-25 19:44:46,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144685 conditions, 19178 events. 11743/19178 cut-off events. For 383377/383377 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 134520 event pairs, 495 based on Foata normal form. 156/19334 useless extension candidates. Maximal degree in co-relation 144580. Up to 5754 conditions per place. [2023-08-25 19:44:46,358 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 947 selfloop transitions, 601 changer transitions 300/1848 dead transitions. [2023-08-25 19:44:46,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1848 transitions, 34553 flow [2023-08-25 19:44:46,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2023-08-25 19:44:46,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2023-08-25 19:44:46,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 13695 transitions. [2023-08-25 19:44:46,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35857356060011 [2023-08-25 19:44:46,368 INFO L72 ComplementDD]: Start complementDD. Operand 87 states and 13695 transitions. [2023-08-25 19:44:46,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 13695 transitions. [2023-08-25 19:44:46,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:44:46,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 87 states and 13695 transitions. [2023-08-25 19:44:46,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 88 states, 87 states have (on average 157.41379310344828) internal successors, (13695), 87 states have internal predecessors, (13695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:46,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 88 states, 88 states have (on average 439.0) internal successors, (38632), 88 states have internal predecessors, (38632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:46,417 INFO L81 ComplementDD]: Finished complementDD. Result has 88 states, 88 states have (on average 439.0) internal successors, (38632), 88 states have internal predecessors, (38632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:46,417 INFO L175 Difference]: Start difference. First operand has 447 places, 976 transitions, 17662 flow. Second operand 87 states and 13695 transitions. [2023-08-25 19:44:46,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1848 transitions, 34553 flow [2023-08-25 19:44:48,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 1848 transitions, 32622 flow, removed 896 selfloop flow, removed 42 redundant places. [2023-08-25 19:44:48,826 INFO L231 Difference]: Finished difference. Result has 496 places, 1183 transitions, 23334 flow [2023-08-25 19:44:48,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=16793, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=976, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=411, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=87, PETRI_FLOW=23334, PETRI_PLACES=496, PETRI_TRANSITIONS=1183} [2023-08-25 19:44:48,827 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 429 predicate places. [2023-08-25 19:44:48,827 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 1183 transitions, 23334 flow [2023-08-25 19:44:48,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 151.74074074074073) internal successors, (4097), 27 states have internal predecessors, (4097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:48,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:44:48,828 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:44:48,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-08-25 19:44:49,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:49,028 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:44:49,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:44:49,029 INFO L85 PathProgramCache]: Analyzing trace with hash -99693297, now seen corresponding path program 12 times [2023-08-25 19:44:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:44:49,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531419480] [2023-08-25 19:44:49,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:44:49,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:44:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:44:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:49,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:44:49,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531419480] [2023-08-25 19:44:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531419480] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:44:49,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129414745] [2023-08-25 19:44:49,610 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 19:44:49,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:44:49,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:44:49,611 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:44:49,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-25 19:44:49,942 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-08-25 19:44:49,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:44:49,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:44:49,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:44:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:50,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:44:51,538 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:44:51,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129414745] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:44:51,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:44:51,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2023-08-25 19:44:51,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859840483] [2023-08-25 19:44:51,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:44:51,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-25 19:44:51,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:44:51,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-25 19:44:51,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2023-08-25 19:44:51,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:44:51,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1183 transitions, 23334 flow. Second operand has 26 states, 26 states have (on average 149.80769230769232) internal successors, (3895), 26 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:44:51,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:44:51,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:44:51,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:45:04,080 INFO L124 PetriNetUnfolderBase]: 12740/20759 cut-off events. [2023-08-25 19:45:04,081 INFO L125 PetriNetUnfolderBase]: For 572982/572982 co-relation queries the response was YES. [2023-08-25 19:45:04,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165688 conditions, 20759 events. 12740/20759 cut-off events. For 572982/572982 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 147290 event pairs, 669 based on Foata normal form. 334/21093 useless extension candidates. Maximal degree in co-relation 165570. Up to 6292 conditions per place. [2023-08-25 19:45:04,541 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 1007 selfloop transitions, 656 changer transitions 412/2075 dead transitions. [2023-08-25 19:45:04,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 2075 transitions, 40549 flow [2023-08-25 19:45:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2023-08-25 19:45:04,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2023-08-25 19:45:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 18945 transitions. [2023-08-25 19:45:04,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35085282515695315 [2023-08-25 19:45:04,551 INFO L72 ComplementDD]: Start complementDD. Operand 123 states and 18945 transitions. [2023-08-25 19:45:04,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 18945 transitions. [2023-08-25 19:45:04,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:45:04,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 123 states and 18945 transitions. [2023-08-25 19:45:04,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 124 states, 123 states have (on average 154.02439024390245) internal successors, (18945), 123 states have internal predecessors, (18945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:04,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 124 states, 124 states have (on average 439.0) internal successors, (54436), 124 states have internal predecessors, (54436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:04,597 INFO L81 ComplementDD]: Finished complementDD. Result has 124 states, 124 states have (on average 439.0) internal successors, (54436), 124 states have internal predecessors, (54436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:04,597 INFO L175 Difference]: Start difference. First operand has 496 places, 1183 transitions, 23334 flow. Second operand 123 states and 18945 transitions. [2023-08-25 19:45:04,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 2075 transitions, 40549 flow [2023-08-25 19:45:10,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 2075 transitions, 38627 flow, removed 853 selfloop flow, removed 41 redundant places. [2023-08-25 19:45:10,579 INFO L231 Difference]: Finished difference. Result has 614 places, 1272 transitions, 26041 flow [2023-08-25 19:45:10,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=21808, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=549, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=123, PETRI_FLOW=26041, PETRI_PLACES=614, PETRI_TRANSITIONS=1272} [2023-08-25 19:45:10,580 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 547 predicate places. [2023-08-25 19:45:10,580 INFO L495 AbstractCegarLoop]: Abstraction has has 614 places, 1272 transitions, 26041 flow [2023-08-25 19:45:10,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 149.80769230769232) internal successors, (3895), 26 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:10,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:45:10,581 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:45:10,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-08-25 19:45:10,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-08-25 19:45:10,781 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:45:10,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:45:10,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1518762903, now seen corresponding path program 13 times [2023-08-25 19:45:10,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:45:10,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70292856] [2023-08-25 19:45:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:45:10,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:45:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:45:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:45:11,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:45:11,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70292856] [2023-08-25 19:45:11,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70292856] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:45:11,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354912782] [2023-08-25 19:45:11,651 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 19:45:11,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:45:11,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:45:11,652 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:45:11,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-25 19:45:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:45:11,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:45:11,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:45:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:45:12,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:45:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:45:14,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354912782] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:45:14,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:45:14,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2023-08-25 19:45:14,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709103567] [2023-08-25 19:45:14,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:45:14,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-08-25 19:45:14,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:45:14,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-08-25 19:45:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=696, Unknown=0, NotChecked=0, Total=870 [2023-08-25 19:45:14,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:45:14,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 1272 transitions, 26041 flow. Second operand has 30 states, 30 states have (on average 151.4) internal successors, (4542), 30 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:14,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:45:14,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:45:14,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:45:33,104 INFO L124 PetriNetUnfolderBase]: 15083/24586 cut-off events. [2023-08-25 19:45:33,104 INFO L125 PetriNetUnfolderBase]: For 1974183/1974183 co-relation queries the response was YES. [2023-08-25 19:45:33,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259361 conditions, 24586 events. 15083/24586 cut-off events. For 1974183/1974183 co-relation queries the response was YES. Maximal size of possible extension queue 966. Compared 177714 event pairs, 715 based on Foata normal form. 286/24872 useless extension candidates. Maximal degree in co-relation 259198. Up to 7064 conditions per place. [2023-08-25 19:45:33,757 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 1075 selfloop transitions, 781 changer transitions 507/2363 dead transitions. [2023-08-25 19:45:33,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 2363 transitions, 56174 flow [2023-08-25 19:45:33,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-08-25 19:45:33,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2023-08-25 19:45:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 16585 transitions. [2023-08-25 19:45:33,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35640606868096447 [2023-08-25 19:45:33,766 INFO L72 ComplementDD]: Start complementDD. Operand 106 states and 16585 transitions. [2023-08-25 19:45:33,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 106 states and 16585 transitions. [2023-08-25 19:45:33,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:45:33,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 106 states and 16585 transitions. [2023-08-25 19:45:33,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 107 states, 106 states have (on average 156.46226415094338) internal successors, (16585), 106 states have internal predecessors, (16585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:33,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 107 states, 107 states have (on average 439.0) internal successors, (46973), 107 states have internal predecessors, (46973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:33,805 INFO L81 ComplementDD]: Finished complementDD. Result has 107 states, 107 states have (on average 439.0) internal successors, (46973), 107 states have internal predecessors, (46973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:33,805 INFO L175 Difference]: Start difference. First operand has 614 places, 1272 transitions, 26041 flow. Second operand 106 states and 16585 transitions. [2023-08-25 19:45:33,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 2363 transitions, 56174 flow [2023-08-25 19:45:42,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 2363 transitions, 48765 flow, removed 3601 selfloop flow, removed 80 redundant places. [2023-08-25 19:45:42,069 INFO L231 Difference]: Finished difference. Result has 625 places, 1461 transitions, 31782 flow [2023-08-25 19:45:42,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=24403, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=548, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=106, PETRI_FLOW=31782, PETRI_PLACES=625, PETRI_TRANSITIONS=1461} [2023-08-25 19:45:42,071 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 558 predicate places. [2023-08-25 19:45:42,071 INFO L495 AbstractCegarLoop]: Abstraction has has 625 places, 1461 transitions, 31782 flow [2023-08-25 19:45:42,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 151.4) internal successors, (4542), 30 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:42,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:45:42,072 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:45:42,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-25 19:45:42,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:45:42,277 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:45:42,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:45:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash 462768088, now seen corresponding path program 14 times [2023-08-25 19:45:42,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:45:42,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921970896] [2023-08-25 19:45:42,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:45:42,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:45:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:45:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:45:43,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:45:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921970896] [2023-08-25 19:45:43,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921970896] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:45:43,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014328750] [2023-08-25 19:45:43,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:45:43,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:45:43,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:45:43,017 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:45:43,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-25 19:45:43,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:45:43,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:45:43,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:45:43,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:45:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:45:43,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:45:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:45:46,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014328750] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:45:46,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:45:46,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:45:46,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585580815] [2023-08-25 19:45:46,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:45:46,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:45:46,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:45:46,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:45:46,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:45:46,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:45:46,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 1461 transitions, 31782 flow. Second operand has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:45:46,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:45:46,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:45:46,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:46:14,911 INFO L124 PetriNetUnfolderBase]: 16678/27117 cut-off events. [2023-08-25 19:46:14,912 INFO L125 PetriNetUnfolderBase]: For 1180952/1180952 co-relation queries the response was YES. [2023-08-25 19:46:15,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240814 conditions, 27117 events. 16678/27117 cut-off events. For 1180952/1180952 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 197923 event pairs, 1129 based on Foata normal form. 666/27783 useless extension candidates. Maximal degree in co-relation 240662. Up to 8974 conditions per place. [2023-08-25 19:46:15,997 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 1345 selfloop transitions, 703 changer transitions 808/2856 dead transitions. [2023-08-25 19:46:15,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 2856 transitions, 62583 flow [2023-08-25 19:46:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2023-08-25 19:46:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2023-08-25 19:46:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 29611 transitions. [2023-08-25 19:46:16,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3494871764608684 [2023-08-25 19:46:16,012 INFO L72 ComplementDD]: Start complementDD. Operand 193 states and 29611 transitions. [2023-08-25 19:46:16,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 29611 transitions. [2023-08-25 19:46:16,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:46:16,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 193 states and 29611 transitions. [2023-08-25 19:46:16,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 194 states, 193 states have (on average 153.42487046632124) internal successors, (29611), 193 states have internal predecessors, (29611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:16,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 194 states, 194 states have (on average 439.0) internal successors, (85166), 194 states have internal predecessors, (85166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:16,083 INFO L81 ComplementDD]: Finished complementDD. Result has 194 states, 194 states have (on average 439.0) internal successors, (85166), 194 states have internal predecessors, (85166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:16,084 INFO L175 Difference]: Start difference. First operand has 625 places, 1461 transitions, 31782 flow. Second operand 193 states and 29611 transitions. [2023-08-25 19:46:16,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 770 places, 2856 transitions, 62583 flow [2023-08-25 19:46:20,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 726 places, 2856 transitions, 60185 flow, removed 1139 selfloop flow, removed 44 redundant places. [2023-08-25 19:46:20,419 INFO L231 Difference]: Finished difference. Result has 847 places, 1572 transitions, 36529 flow [2023-08-25 19:46:20,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=30114, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=511, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=910, PETRI_DIFFERENCE_SUBTRAHEND_STATES=193, PETRI_FLOW=36529, PETRI_PLACES=847, PETRI_TRANSITIONS=1572} [2023-08-25 19:46:20,421 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 780 predicate places. [2023-08-25 19:46:20,421 INFO L495 AbstractCegarLoop]: Abstraction has has 847 places, 1572 transitions, 36529 flow [2023-08-25 19:46:20,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:20,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:46:20,422 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:46:20,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-08-25 19:46:20,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:46:20,623 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:46:20,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:46:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1302282954, now seen corresponding path program 15 times [2023-08-25 19:46:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:46:20,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841570677] [2023-08-25 19:46:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:46:20,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:46:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:46:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:46:21,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:46:21,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841570677] [2023-08-25 19:46:21,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841570677] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:46:21,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253245530] [2023-08-25 19:46:21,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:46:21,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:46:21,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:46:21,381 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:46:21,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-08-25 19:46:21,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-08-25 19:46:21,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:46:21,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:46:21,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:46:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:46:22,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:46:23,895 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:46:23,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253245530] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:46:23,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:46:23,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:46:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765640173] [2023-08-25 19:46:23,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:46:23,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:46:23,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:46:23,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:46:23,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:46:23,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:46:23,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 847 places, 1572 transitions, 36529 flow. Second operand has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:23,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:46:23,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:46:23,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:46:46,249 INFO L124 PetriNetUnfolderBase]: 17000/27607 cut-off events. [2023-08-25 19:46:46,250 INFO L125 PetriNetUnfolderBase]: For 5692267/5692267 co-relation queries the response was YES. [2023-08-25 19:46:47,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353434 conditions, 27607 events. 17000/27607 cut-off events. For 5692267/5692267 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 201700 event pairs, 1153 based on Foata normal form. 398/28005 useless extension candidates. Maximal degree in co-relation 353190. Up to 10632 conditions per place. [2023-08-25 19:46:47,465 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 1309 selfloop transitions, 678 changer transitions 493/2480 dead transitions. [2023-08-25 19:46:47,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 2480 transitions, 66031 flow [2023-08-25 19:46:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-08-25 19:46:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2023-08-25 19:46:47,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 19055 transitions. [2023-08-25 19:46:47,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3500440884708649 [2023-08-25 19:46:47,475 INFO L72 ComplementDD]: Start complementDD. Operand 124 states and 19055 transitions. [2023-08-25 19:46:47,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 19055 transitions. [2023-08-25 19:46:47,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:46:47,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 124 states and 19055 transitions. [2023-08-25 19:46:47,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 125 states, 124 states have (on average 153.66935483870967) internal successors, (19055), 124 states have internal predecessors, (19055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:47,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 125 states, 125 states have (on average 439.0) internal successors, (54875), 125 states have internal predecessors, (54875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:47,519 INFO L81 ComplementDD]: Finished complementDD. Result has 125 states, 125 states have (on average 439.0) internal successors, (54875), 125 states have internal predecessors, (54875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:46:47,519 INFO L175 Difference]: Start difference. First operand has 847 places, 1572 transitions, 36529 flow. Second operand 124 states and 19055 transitions. [2023-08-25 19:46:47,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 850 places, 2480 transitions, 66031 flow [2023-08-25 19:47:18,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 720 places, 2480 transitions, 56450 flow, removed 4588 selfloop flow, removed 130 redundant places. [2023-08-25 19:47:18,292 INFO L231 Difference]: Finished difference. Result has 801 places, 1652 transitions, 38777 flow [2023-08-25 19:47:18,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=33563, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=544, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=986, PETRI_DIFFERENCE_SUBTRAHEND_STATES=124, PETRI_FLOW=38777, PETRI_PLACES=801, PETRI_TRANSITIONS=1652} [2023-08-25 19:47:18,294 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 734 predicate places. [2023-08-25 19:47:18,294 INFO L495 AbstractCegarLoop]: Abstraction has has 801 places, 1652 transitions, 38777 flow [2023-08-25 19:47:18,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:47:18,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:47:18,295 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:47:18,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-08-25 19:47:18,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:47:18,501 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:47:18,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:47:18,501 INFO L85 PathProgramCache]: Analyzing trace with hash 110108328, now seen corresponding path program 16 times [2023-08-25 19:47:18,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:47:18,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672838009] [2023-08-25 19:47:18,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:47:18,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:47:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:47:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:47:19,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:47:19,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672838009] [2023-08-25 19:47:19,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672838009] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:47:19,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133194494] [2023-08-25 19:47:19,273 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:47:19,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:47:19,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:47:19,277 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:47:19,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-08-25 19:47:19,516 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:47:19,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:47:19,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:47:19,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:47:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:47:20,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:47:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:47:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133194494] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:47:22,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:47:22,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:47:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129800591] [2023-08-25 19:47:22,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:47:22,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:47:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:47:22,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:47:22,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:47:22,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:47:22,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 1652 transitions, 38777 flow. Second operand has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:47:22,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:47:22,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:47:22,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:47:45,727 INFO L124 PetriNetUnfolderBase]: 19459/31696 cut-off events. [2023-08-25 19:47:45,727 INFO L125 PetriNetUnfolderBase]: For 4759319/4759319 co-relation queries the response was YES. [2023-08-25 19:47:47,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386162 conditions, 31696 events. 19459/31696 cut-off events. For 4759319/4759319 co-relation queries the response was YES. Maximal size of possible extension queue 1175. Compared 238021 event pairs, 1115 based on Foata normal form. 424/32120 useless extension candidates. Maximal degree in co-relation 385942. Up to 10992 conditions per place. [2023-08-25 19:47:47,541 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 1396 selfloop transitions, 841 changer transitions 562/2799 dead transitions. [2023-08-25 19:47:47,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 815 places, 2799 transitions, 72295 flow [2023-08-25 19:47:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-08-25 19:47:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2023-08-25 19:47:47,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 15557 transitions. [2023-08-25 19:47:47,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3579531073836313 [2023-08-25 19:47:47,556 INFO L72 ComplementDD]: Start complementDD. Operand 99 states and 15557 transitions. [2023-08-25 19:47:47,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 15557 transitions. [2023-08-25 19:47:47,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:47:47,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 99 states and 15557 transitions. [2023-08-25 19:47:47,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 100 states, 99 states have (on average 157.14141414141415) internal successors, (15557), 99 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:47:47,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 100 states, 100 states have (on average 439.0) internal successors, (43900), 100 states have internal predecessors, (43900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:47:47,598 INFO L81 ComplementDD]: Finished complementDD. Result has 100 states, 100 states have (on average 439.0) internal successors, (43900), 100 states have internal predecessors, (43900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:47:47,598 INFO L175 Difference]: Start difference. First operand has 801 places, 1652 transitions, 38777 flow. Second operand 99 states and 15557 transitions. [2023-08-25 19:47:47,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 815 places, 2799 transitions, 72295 flow [2023-08-25 19:48:17,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 727 places, 2799 transitions, 64049 flow, removed 3648 selfloop flow, removed 88 redundant places. [2023-08-25 19:48:17,479 INFO L231 Difference]: Finished difference. Result has 766 places, 1813 transitions, 44042 flow [2023-08-25 19:48:17,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=36477, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=648, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=44042, PETRI_PLACES=766, PETRI_TRANSITIONS=1813} [2023-08-25 19:48:17,481 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 699 predicate places. [2023-08-25 19:48:17,481 INFO L495 AbstractCegarLoop]: Abstraction has has 766 places, 1813 transitions, 44042 flow [2023-08-25 19:48:17,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:17,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:48:17,482 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:48:17,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-08-25 19:48:17,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-08-25 19:48:17,692 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:48:17,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:48:17,692 INFO L85 PathProgramCache]: Analyzing trace with hash 549237059, now seen corresponding path program 17 times [2023-08-25 19:48:17,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:48:17,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746366356] [2023-08-25 19:48:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:48:17,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:48:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:48:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:48:18,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:48:18,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746366356] [2023-08-25 19:48:18,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746366356] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:48:18,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669441348] [2023-08-25 19:48:18,387 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:48:18,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:48:18,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:48:18,389 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:48:18,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-08-25 19:48:18,595 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-08-25 19:48:18,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:48:18,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:48:18,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:48:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:48:19,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:48:21,530 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:48:21,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669441348] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:48:21,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:48:21,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:48:21,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234116522] [2023-08-25 19:48:21,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:48:21,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:48:21,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:48:21,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:48:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:48:21,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:48:21,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 766 places, 1813 transitions, 44042 flow. Second operand has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:21,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:48:21,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:48:21,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:48:43,121 INFO L124 PetriNetUnfolderBase]: 20144/32673 cut-off events. [2023-08-25 19:48:43,121 INFO L125 PetriNetUnfolderBase]: For 1758551/1758551 co-relation queries the response was YES. [2023-08-25 19:48:44,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322309 conditions, 32673 events. 20144/32673 cut-off events. For 1758551/1758551 co-relation queries the response was YES. Maximal size of possible extension queue 1237. Compared 244825 event pairs, 1265 based on Foata normal form. 226/32899 useless extension candidates. Maximal degree in co-relation 322120. Up to 12826 conditions per place. [2023-08-25 19:48:44,580 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 1468 selfloop transitions, 812 changer transitions 380/2660 dead transitions. [2023-08-25 19:48:44,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 808 places, 2660 transitions, 68934 flow [2023-08-25 19:48:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-08-25 19:48:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2023-08-25 19:48:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 13124 transitions. [2023-08-25 19:48:44,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3558954333441805 [2023-08-25 19:48:44,590 INFO L72 ComplementDD]: Start complementDD. Operand 84 states and 13124 transitions. [2023-08-25 19:48:44,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 13124 transitions. [2023-08-25 19:48:44,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:48:44,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 84 states and 13124 transitions. [2023-08-25 19:48:44,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 85 states, 84 states have (on average 156.23809523809524) internal successors, (13124), 84 states have internal predecessors, (13124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:44,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 85 states, 85 states have (on average 439.0) internal successors, (37315), 85 states have internal predecessors, (37315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:44,616 INFO L81 ComplementDD]: Finished complementDD. Result has 85 states, 85 states have (on average 439.0) internal successors, (37315), 85 states have internal predecessors, (37315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:44,616 INFO L175 Difference]: Start difference. First operand has 766 places, 1813 transitions, 44042 flow. Second operand 84 states and 13124 transitions. [2023-08-25 19:48:44,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 808 places, 2660 transitions, 68934 flow [2023-08-25 19:48:59,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 755 places, 2660 transitions, 65755 flow, removed 1477 selfloop flow, removed 53 redundant places. [2023-08-25 19:48:59,389 INFO L231 Difference]: Finished difference. Result has 786 places, 1934 transitions, 49017 flow [2023-08-25 19:48:59,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=42417, PETRI_DIFFERENCE_MINUEND_PLACES=672, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=667, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1074, PETRI_DIFFERENCE_SUBTRAHEND_STATES=84, PETRI_FLOW=49017, PETRI_PLACES=786, PETRI_TRANSITIONS=1934} [2023-08-25 19:48:59,391 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 719 predicate places. [2023-08-25 19:48:59,391 INFO L495 AbstractCegarLoop]: Abstraction has has 786 places, 1934 transitions, 49017 flow [2023-08-25 19:48:59,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:48:59,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:48:59,392 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:48:59,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-08-25 19:48:59,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-08-25 19:48:59,596 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:48:59,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:48:59,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1027343217, now seen corresponding path program 18 times [2023-08-25 19:48:59,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:48:59,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063739169] [2023-08-25 19:48:59,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:48:59,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:48:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:00,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063739169] [2023-08-25 19:49:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063739169] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:49:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739094773] [2023-08-25 19:49:00,244 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 19:49:00,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:49:00,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:49:00,249 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:49:00,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-08-25 19:49:00,703 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-08-25 19:49:00,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:49:00,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:49:00,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:49:01,408 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:01,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:49:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:03,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739094773] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:49:03,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:49:03,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:49:03,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801853910] [2023-08-25 19:49:03,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:49:03,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:49:03,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:03,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:49:03,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:49:03,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:49:03,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 786 places, 1934 transitions, 49017 flow. Second operand has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:03,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:03,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:49:03,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:31,662 INFO L124 PetriNetUnfolderBase]: 21524/34879 cut-off events. [2023-08-25 19:49:31,662 INFO L125 PetriNetUnfolderBase]: For 1920793/1920793 co-relation queries the response was YES. [2023-08-25 19:49:32,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345321 conditions, 34879 events. 21524/34879 cut-off events. For 1920793/1920793 co-relation queries the response was YES. Maximal size of possible extension queue 1360. Compared 263862 event pairs, 1571 based on Foata normal form. 500/35379 useless extension candidates. Maximal degree in co-relation 345122. Up to 14324 conditions per place. [2023-08-25 19:49:32,977 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 1593 selfloop transitions, 839 changer transitions 586/3018 dead transitions. [2023-08-25 19:49:32,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 891 places, 3018 transitions, 79342 flow [2023-08-25 19:49:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2023-08-25 19:49:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2023-08-25 19:49:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 21194 transitions. [2023-08-25 19:49:32,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34983988643491465 [2023-08-25 19:49:32,987 INFO L72 ComplementDD]: Start complementDD. Operand 138 states and 21194 transitions. [2023-08-25 19:49:32,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 21194 transitions. [2023-08-25 19:49:32,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:32,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 138 states and 21194 transitions. [2023-08-25 19:49:33,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 139 states, 138 states have (on average 153.57971014492753) internal successors, (21194), 138 states have internal predecessors, (21194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 139 states, 139 states have (on average 439.0) internal successors, (61021), 139 states have internal predecessors, (61021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,033 INFO L81 ComplementDD]: Finished complementDD. Result has 139 states, 139 states have (on average 439.0) internal successors, (61021), 139 states have internal predecessors, (61021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,033 INFO L175 Difference]: Start difference. First operand has 786 places, 1934 transitions, 49017 flow. Second operand 138 states and 21194 transitions. [2023-08-25 19:49:33,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 891 places, 3018 transitions, 79342 flow [2023-08-25 19:49:43,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 833 places, 3018 transitions, 77139 flow, removed 1006 selfloop flow, removed 58 redundant places. [2023-08-25 19:49:43,698 INFO L231 Difference]: Finished difference. Result has 920 places, 2049 transitions, 54632 flow [2023-08-25 19:49:43,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=47354, PETRI_DIFFERENCE_MINUEND_PLACES=696, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=666, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=138, PETRI_FLOW=54632, PETRI_PLACES=920, PETRI_TRANSITIONS=2049} [2023-08-25 19:49:43,700 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 853 predicate places. [2023-08-25 19:49:43,701 INFO L495 AbstractCegarLoop]: Abstraction has has 920 places, 2049 transitions, 54632 flow [2023-08-25 19:49:43,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:43,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:43,701 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:43,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-08-25 19:49:43,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-08-25 19:49:43,913 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:49:43,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:43,914 INFO L85 PathProgramCache]: Analyzing trace with hash -14088833, now seen corresponding path program 19 times [2023-08-25 19:49:43,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:43,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143815169] [2023-08-25 19:49:43,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:43,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:44,919 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:44,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:44,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143815169] [2023-08-25 19:49:44,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143815169] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:49:44,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502501510] [2023-08-25 19:49:44,919 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 19:49:44,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:49:44,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:49:44,921 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:49:44,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-08-25 19:49:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:45,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:49:45,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:49:45,660 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:45,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:49:47,321 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:47,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502501510] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:49:47,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:49:47,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2023-08-25 19:49:47,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28514820] [2023-08-25 19:49:47,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:49:47,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-08-25 19:49:47,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:47,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-08-25 19:49:47,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=697, Unknown=0, NotChecked=0, Total=870 [2023-08-25 19:49:47,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:49:47,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 920 places, 2049 transitions, 54632 flow. Second operand has 30 states, 30 states have (on average 151.4) internal successors, (4542), 30 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:47,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:47,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:49:47,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:50:21,360 INFO L124 PetriNetUnfolderBase]: 24306/39493 cut-off events. [2023-08-25 19:50:21,361 INFO L125 PetriNetUnfolderBase]: For 6494544/6494544 co-relation queries the response was YES. [2023-08-25 19:50:23,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524978 conditions, 39493 events. 24306/39493 cut-off events. For 6494544/6494544 co-relation queries the response was YES. Maximal size of possible extension queue 1439. Compared 305372 event pairs, 1489 based on Foata normal form. 408/39901 useless extension candidates. Maximal degree in co-relation 524718. Up to 14520 conditions per place. [2023-08-25 19:50:24,222 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 1682 selfloop transitions, 1009 changer transitions 611/3302 dead transitions. [2023-08-25 19:50:24,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 3302 transitions, 98651 flow [2023-08-25 19:50:24,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2023-08-25 19:50:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2023-08-25 19:50:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 16814 transitions. [2023-08-25 19:50:24,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3579503118812935 [2023-08-25 19:50:24,231 INFO L72 ComplementDD]: Start complementDD. Operand 107 states and 16814 transitions. [2023-08-25 19:50:24,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 16814 transitions. [2023-08-25 19:50:24,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:50:24,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 107 states and 16814 transitions. [2023-08-25 19:50:24,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 108 states, 107 states have (on average 157.14018691588785) internal successors, (16814), 107 states have internal predecessors, (16814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:50:24,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 108 states, 108 states have (on average 439.0) internal successors, (47412), 108 states have internal predecessors, (47412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:50:24,270 INFO L81 ComplementDD]: Finished complementDD. Result has 108 states, 108 states have (on average 439.0) internal successors, (47412), 108 states have internal predecessors, (47412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:50:24,270 INFO L175 Difference]: Start difference. First operand has 920 places, 2049 transitions, 54632 flow. Second operand 107 states and 16814 transitions. [2023-08-25 19:50:24,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 3302 transitions, 98651 flow [2023-08-25 19:51:05,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 854 places, 3302 transitions, 88511 flow, removed 4997 selfloop flow, removed 94 redundant places. [2023-08-25 19:51:05,824 INFO L231 Difference]: Finished difference. Result has 898 places, 2242 transitions, 63107 flow [2023-08-25 19:51:05,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=52460, PETRI_DIFFERENCE_MINUEND_PLACES=748, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=780, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=107, PETRI_FLOW=63107, PETRI_PLACES=898, PETRI_TRANSITIONS=2242} [2023-08-25 19:51:05,826 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 831 predicate places. [2023-08-25 19:51:05,827 INFO L495 AbstractCegarLoop]: Abstraction has has 898 places, 2242 transitions, 63107 flow [2023-08-25 19:51:05,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 151.4) internal successors, (4542), 30 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:51:05,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:51:05,828 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:51:05,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-08-25 19:51:06,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:51:06,035 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:51:06,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:51:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash -775586690, now seen corresponding path program 20 times [2023-08-25 19:51:06,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:51:06,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358677843] [2023-08-25 19:51:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:51:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:51:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:51:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:51:06,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:51:06,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358677843] [2023-08-25 19:51:06,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358677843] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:51:06,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101994779] [2023-08-25 19:51:06,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:51:06,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:51:06,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:51:06,605 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:51:06,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-08-25 19:51:06,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:51:06,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:51:06,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:51:06,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:51:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:51:07,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:51:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:51:09,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101994779] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:51:09,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:51:09,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:51:09,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027876362] [2023-08-25 19:51:09,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:51:09,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:51:09,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:51:09,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:51:09,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:51:09,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:51:09,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 898 places, 2242 transitions, 63107 flow. Second operand has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:51:09,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:51:09,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:51:09,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:51:42,464 INFO L124 PetriNetUnfolderBase]: 25184/40823 cut-off events. [2023-08-25 19:51:42,464 INFO L125 PetriNetUnfolderBase]: For 2837672/2837672 co-relation queries the response was YES. [2023-08-25 19:51:44,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448386 conditions, 40823 events. 25184/40823 cut-off events. For 2837672/2837672 co-relation queries the response was YES. Maximal size of possible extension queue 1565. Compared 317390 event pairs, 2811 based on Foata normal form. 258/41081 useless extension candidates. Maximal degree in co-relation 448156. Up to 20130 conditions per place. [2023-08-25 19:51:45,046 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 1989 selfloop transitions, 802 changer transitions 446/3237 dead transitions. [2023-08-25 19:51:45,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 3237 transitions, 97833 flow [2023-08-25 19:51:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2023-08-25 19:51:45,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2023-08-25 19:51:45,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 16094 transitions. [2023-08-25 19:51:45,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3559280801468474 [2023-08-25 19:51:45,057 INFO L72 ComplementDD]: Start complementDD. Operand 103 states and 16094 transitions. [2023-08-25 19:51:45,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 16094 transitions. [2023-08-25 19:51:45,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:51:45,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 103 states and 16094 transitions. [2023-08-25 19:51:45,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 104 states, 103 states have (on average 156.25242718446603) internal successors, (16094), 103 states have internal predecessors, (16094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:51:45,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 104 states, 104 states have (on average 439.0) internal successors, (45656), 104 states have internal predecessors, (45656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:51:45,097 INFO L81 ComplementDD]: Finished complementDD. Result has 104 states, 104 states have (on average 439.0) internal successors, (45656), 104 states have internal predecessors, (45656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:51:45,097 INFO L175 Difference]: Start difference. First operand has 898 places, 2242 transitions, 63107 flow. Second operand 103 states and 16094 transitions. [2023-08-25 19:51:45,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 3237 transitions, 97833 flow [2023-08-25 19:52:03,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 897 places, 3237 transitions, 90555 flow, removed 3074 selfloop flow, removed 61 redundant places. [2023-08-25 19:52:03,612 INFO L231 Difference]: Finished difference. Result has 938 places, 2411 transitions, 68105 flow [2023-08-25 19:52:03,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=59221, PETRI_DIFFERENCE_MINUEND_PLACES=795, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=622, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=103, PETRI_FLOW=68105, PETRI_PLACES=938, PETRI_TRANSITIONS=2411} [2023-08-25 19:52:03,614 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 871 predicate places. [2023-08-25 19:52:03,614 INFO L495 AbstractCegarLoop]: Abstraction has has 938 places, 2411 transitions, 68105 flow [2023-08-25 19:52:03,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:52:03,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:52:03,615 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:52:03,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-08-25 19:52:03,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:52:03,816 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:52:03,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:52:03,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1555184004, now seen corresponding path program 21 times [2023-08-25 19:52:03,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:52:03,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703290641] [2023-08-25 19:52:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:52:03,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:52:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:52:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:52:04,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:52:04,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703290641] [2023-08-25 19:52:04,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703290641] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:52:04,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682579036] [2023-08-25 19:52:04,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:52:04,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:52:04,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:52:04,527 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:52:04,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-08-25 19:52:04,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-08-25 19:52:04,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:52:04,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 19:52:04,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:52:05,577 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:52:05,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:52:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:52:07,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682579036] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:52:07,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:52:07,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:52:07,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771718062] [2023-08-25 19:52:07,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:52:07,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:52:07,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:52:07,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:52:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:52:07,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 439 [2023-08-25 19:52:07,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 2411 transitions, 68105 flow. Second operand has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:52:07,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:52:07,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 439 [2023-08-25 19:52:07,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:52:47,025 INFO L124 PetriNetUnfolderBase]: 26257/42576 cut-off events. [2023-08-25 19:52:47,025 INFO L125 PetriNetUnfolderBase]: For 2937660/2937660 co-relation queries the response was YES. [2023-08-25 19:52:48,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456053 conditions, 42576 events. 26257/42576 cut-off events. For 2937660/2937660 co-relation queries the response was YES. Maximal size of possible extension queue 1580. Compared 331544 event pairs, 2377 based on Foata normal form. 378/42954 useless extension candidates. Maximal degree in co-relation 455820. Up to 20374 conditions per place. [2023-08-25 19:52:49,134 INFO L140 encePairwiseOnDemand]: 430/439 looper letters, 2045 selfloop transitions, 913 changer transitions 455/3413 dead transitions. [2023-08-25 19:52:49,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 3413 transitions, 99144 flow [2023-08-25 19:52:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2023-08-25 19:52:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2023-08-25 19:52:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 20139 transitions. [2023-08-25 19:52:49,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3501886661218244 [2023-08-25 19:52:49,144 INFO L72 ComplementDD]: Start complementDD. Operand 131 states and 20139 transitions. [2023-08-25 19:52:49,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 20139 transitions. [2023-08-25 19:52:49,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:52:49,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 131 states and 20139 transitions. [2023-08-25 19:52:49,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 132 states, 131 states have (on average 153.73282442748092) internal successors, (20139), 131 states have internal predecessors, (20139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:52:49,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 132 states, 132 states have (on average 439.0) internal successors, (57948), 132 states have internal predecessors, (57948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:52:49,188 INFO L81 ComplementDD]: Finished complementDD. Result has 132 states, 132 states have (on average 439.0) internal successors, (57948), 132 states have internal predecessors, (57948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:52:49,188 INFO L175 Difference]: Start difference. First operand has 938 places, 2411 transitions, 68105 flow. Second operand 131 states and 20139 transitions. [2023-08-25 19:52:49,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 3413 transitions, 99144 flow [2023-08-25 19:53:07,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 970 places, 3413 transitions, 95655 flow, removed 1621 selfloop flow, removed 56 redundant places. [2023-08-25 19:53:07,794 INFO L231 Difference]: Finished difference. Result has 1056 places, 2561 transitions, 74848 flow [2023-08-25 19:53:07,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=65542, PETRI_DIFFERENCE_MINUEND_PLACES=840, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=708, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=131, PETRI_FLOW=74848, PETRI_PLACES=1056, PETRI_TRANSITIONS=2561} [2023-08-25 19:53:07,796 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 989 predicate places. [2023-08-25 19:53:07,796 INFO L495 AbstractCegarLoop]: Abstraction has has 1056 places, 2561 transitions, 74848 flow [2023-08-25 19:53:07,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 149.70967741935485) internal successors, (4641), 31 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:53:07,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:53:07,797 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:53:07,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-08-25 19:53:08,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-08-25 19:53:08,001 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:53:08,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:53:08,001 INFO L85 PathProgramCache]: Analyzing trace with hash -685845934, now seen corresponding path program 22 times [2023-08-25 19:53:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:53:08,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690956074] [2023-08-25 19:53:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:53:08,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:53:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:53:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:53:08,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:53:08,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690956074] [2023-08-25 19:53:08,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690956074] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:53:08,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817122331] [2023-08-25 19:53:08,539 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:53:08,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:53:08,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:53:08,542 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:53:08,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-08-25 19:53:08,738 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:53:08,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:53:08,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjunts are in the unsatisfiable core [2023-08-25 19:53:08,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:53:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:53:09,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:53:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:53:10,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817122331] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:53:10,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:53:10,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:53:10,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663781734] [2023-08-25 19:53:10,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:53:10,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:53:10,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:53:10,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:53:10,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:53:10,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:53:10,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1056 places, 2561 transitions, 74848 flow. Second operand has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:53:10,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:53:10,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:53:10,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:53:55,572 INFO L124 PetriNetUnfolderBase]: 28568/46361 cut-off events. [2023-08-25 19:53:55,573 INFO L125 PetriNetUnfolderBase]: For 6979161/6979161 co-relation queries the response was YES. [2023-08-25 19:53:58,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611149 conditions, 46361 events. 28568/46361 cut-off events. For 6979161/6979161 co-relation queries the response was YES. Maximal size of possible extension queue 1666. Compared 367447 event pairs, 2851 based on Foata normal form. 522/46883 useless extension candidates. Maximal degree in co-relation 610868. Up to 21380 conditions per place. [2023-08-25 19:53:59,080 INFO L140 encePairwiseOnDemand]: 432/439 looper letters, 2139 selfloop transitions, 868 changer transitions 738/3745 dead transitions. [2023-08-25 19:53:59,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1079 places, 3745 transitions, 118605 flow [2023-08-25 19:53:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-08-25 19:53:59,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2023-08-25 19:53:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 16024 transitions. [2023-08-25 19:53:59,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35785430345258834 [2023-08-25 19:53:59,237 INFO L72 ComplementDD]: Start complementDD. Operand 102 states and 16024 transitions. [2023-08-25 19:53:59,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 16024 transitions. [2023-08-25 19:53:59,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:53:59,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 102 states and 16024 transitions. [2023-08-25 19:53:59,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 103 states, 102 states have (on average 157.09803921568627) internal successors, (16024), 102 states have internal predecessors, (16024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:53:59,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 103 states, 103 states have (on average 439.0) internal successors, (45217), 103 states have internal predecessors, (45217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:53:59,279 INFO L81 ComplementDD]: Finished complementDD. Result has 103 states, 103 states have (on average 439.0) internal successors, (45217), 103 states have internal predecessors, (45217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:53:59,279 INFO L175 Difference]: Start difference. First operand has 1056 places, 2561 transitions, 74848 flow. Second operand 102 states and 16024 transitions. [2023-08-25 19:53:59,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1079 places, 3745 transitions, 118605 flow [2023-08-25 19:55:01,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 991 places, 3745 transitions, 108378 flow, removed 5023 selfloop flow, removed 88 redundant places. [2023-08-25 19:55:01,496 INFO L231 Difference]: Finished difference. Result has 1027 places, 2584 transitions, 76557 flow [2023-08-25 19:55:01,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=71807, PETRI_DIFFERENCE_MINUEND_PLACES=890, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=732, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=102, PETRI_FLOW=76557, PETRI_PLACES=1027, PETRI_TRANSITIONS=2584} [2023-08-25 19:55:01,498 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 960 predicate places. [2023-08-25 19:55:01,498 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 2584 transitions, 76557 flow [2023-08-25 19:55:01,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:55:01,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:55:01,499 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:55:01,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-08-25 19:55:01,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-08-25 19:55:01,699 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-25 19:55:01,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:55:01,700 INFO L85 PathProgramCache]: Analyzing trace with hash 193433024, now seen corresponding path program 23 times [2023-08-25 19:55:01,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:55:01,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191704754] [2023-08-25 19:55:01,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:55:01,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:55:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:55:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:55:02,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:55:02,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191704754] [2023-08-25 19:55:02,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191704754] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:55:02,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652322471] [2023-08-25 19:55:02,278 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:55:02,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:55:02,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:55:02,279 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:55:02,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-08-25 19:55:02,490 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-08-25 19:55:02,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:55:02,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:55:02,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:55:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:55:02,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:55:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:55:05,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652322471] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:55:05,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:55:05,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-25 19:55:05,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731743128] [2023-08-25 19:55:05,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:55:05,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:55:05,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:55:05,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:55:05,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:55:05,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 439 [2023-08-25 19:55:05,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 2584 transitions, 76557 flow. Second operand has 31 states, 31 states have (on average 151.58064516129033) internal successors, (4699), 31 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:55:05,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:55:05,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 439 [2023-08-25 19:55:05,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-25 19:55:14,048 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 19:55:14,087 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 19:55:14,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-08-25 19:55:14,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONASSERT (64 of 65 remaining) [2023-08-25 19:55:14,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-08-25 19:55:14,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:55:14,371 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). [2023-08-25 19:55:14,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-08-25 19:55:14,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-08-25 19:55:14,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-08-25 19:55:14,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-08-25 19:55:14,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-08-25 19:55:14,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-08-25 19:55:14,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-08-25 19:55:14,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-08-25 19:55:14,375 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-08-25 19:55:14,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-08-25 19:55:14,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-08-25 19:55:14,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-08-25 19:55:14,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-08-25 19:55:14,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-08-25 19:55:14,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-08-25 19:55:14,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 65 remaining) [2023-08-25 19:55:14,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-08-25 19:55:14,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-08-25 19:55:14,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-08-25 19:55:14,380 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-08-25 19:55:14,380 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-08-25 19:55:14,380 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-08-25 19:55:14,380 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2023-08-25 19:55:14,380 INFO L445 BasicCegarLoop]: Path program histogram: [23, 4, 4, 2, 1] [2023-08-25 19:55:14,384 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:55:14,384 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:55:14,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:55:14 BasicIcfg [2023-08-25 19:55:14,387 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:55:14,387 INFO L158 Benchmark]: Toolchain (without parser) took 745617.58ms. Allocated memory was 346.0MB in the beginning and 14.7GB in the end (delta: 14.4GB). Free memory was 322.9MB in the beginning and 8.7GB in the end (delta: -8.3GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. [2023-08-25 19:55:14,387 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 346.0MB. Free memory was 323.8MB in the beginning and 323.7MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:55:14,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.10ms. Allocated memory is still 346.0MB. Free memory was 322.4MB in the beginning and 310.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 19:55:14,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.52ms. Allocated memory is still 346.0MB. Free memory was 310.9MB in the beginning and 308.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 19:55:14,388 INFO L158 Benchmark]: Boogie Preprocessor took 45.03ms. Allocated memory is still 346.0MB. Free memory was 308.2MB in the beginning and 306.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:55:14,388 INFO L158 Benchmark]: RCFGBuilder took 790.32ms. Allocated memory is still 346.0MB. Free memory was 306.6MB in the beginning and 266.9MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-08-25 19:55:14,388 INFO L158 Benchmark]: TraceAbstraction took 744437.37ms. Allocated memory was 346.0MB in the beginning and 14.7GB in the end (delta: 14.4GB). Free memory was 266.3MB in the beginning and 8.7GB in the end (delta: -8.4GB). Peak memory consumption was 6.0GB. Max. memory is 16.0GB. [2023-08-25 19:55:14,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 346.0MB. Free memory was 323.8MB in the beginning and 323.7MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 288.10ms. Allocated memory is still 346.0MB. Free memory was 322.4MB in the beginning and 310.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.52ms. Allocated memory is still 346.0MB. Free memory was 310.9MB in the beginning and 308.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.03ms. Allocated memory is still 346.0MB. Free memory was 308.2MB in the beginning and 306.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 790.32ms. Allocated memory is still 346.0MB. Free memory was 306.6MB in the beginning and 266.9MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * TraceAbstraction took 744437.37ms. Allocated memory was 346.0MB in the beginning and 14.7GB in the end (delta: 14.4GB). Free memory was 266.3MB in the beginning and 8.7GB in the end (delta: -8.4GB). Peak memory consumption was 6.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 192 PlacesBefore, 67 PlacesAfterwards, 192 TransitionsBefore, 59 TransitionsAfterwards, 4270 CoEnabledTransitionPairs, 9 FixpointIterations, 122 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 4 ConcurrentYvCompositions, 8 ChoiceCompositions, 233 TotalNumberOfCompositions, 6626 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5376, independent: 5311, independent conditional: 0, independent unconditional: 5311, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1908, independent: 1899, independent conditional: 0, independent unconditional: 1899, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5376, independent: 3412, independent conditional: 0, independent unconditional: 3412, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 1908, unknown conditional: 0, unknown unconditional: 1908] , Statistics on independence cache: Total cache size (in pairs): 199, Positive cache size: 191, Positive conditional cache size: 0, Positive unconditional cache size: 191, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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 CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (31states, 149/439 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 48823 conditions, 7114 events (4206/7113 cut-off events. For 203182/203182 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 53348 event pairs, 460 based on Foata normal form. 0/8256 useless extension candidates. Maximal degree in co-relation 48571. Up to 3525 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 252 locations, 65 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: 744.3s, OverallIterations: 34, TraceHistogramMax: 6, PathProgramHistogramMax: 23, EmptinessCheckTime: 0.0s, AutomataDifference: 663.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19761 SdHoareTripleChecker+Valid, 32.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19761 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 27.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1335 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51535 IncrementalHoareTripleChecker+Invalid, 52870 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1335 mSolverCounterUnsat, 0 mSDtfsCounter, 51535 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3885 GetRequests, 1091 SyntacticMatches, 27 SemanticMatches, 2767 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121366 ImplicationChecksByTransitivity, 131.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76557occurred in iteration=33, InterpolantAutomatonStates: 2270, 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: 0.6s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 61.5s InterpolantComputationTime, 1665 NumberOfCodeBlocks, 1665 NumberOfCodeBlocksAsserted, 130 NumberOfCheckSat, 2353 ConstructedInterpolants, 0 QuantifiedInterpolants, 56760 SizeOfPredicates, 1195 NumberOfNonLiveVariables, 6393 ConjunctsInSsa, 396 ConjunctsInUnsatCore, 88 InterpolantComputations, 7 PerfectInterpolantSequences, 293/1493 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