/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/popl20-proofs-counter-add-4-semi-Q67.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 21:03:35,577 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 21:03:35,654 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 21:03:35,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 21:03:35,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 21:03:35,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 21:03:35,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 21:03:35,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 21:03:35,705 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 21:03:35,706 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 21:03:35,706 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 21:03:35,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 21:03:35,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 21:03:35,707 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 21:03:35,707 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 21:03:35,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 21:03:35,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 21:03:35,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 21:03:35,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 21:03:35,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 21:03:35,714 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 21:03:35,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 21:03:35,714 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 21:03:35,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 21:03:35,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 21:03:35,715 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 21:03:35,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 21:03:35,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:03:35,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 21:03:35,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 21:03:35,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 21:03:35,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 21:03:35,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 21:03:35,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 21:03:35,718 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 21:03:35,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 21:03:36,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 21:03:36,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 21:03:36,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 21:03:36,084 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 21:03:36,084 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 21:03:36,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-08-25 21:03:37,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 21:03:37,451 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 21:03:37,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-08-25 21:03:37,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3745ed9/6a36635ebd7d4340964b248916c0dadb/FLAG41015f6fe [2023-08-25 21:03:37,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3745ed9/6a36635ebd7d4340964b248916c0dadb [2023-08-25 21:03:37,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 21:03:37,482 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 21:03:37,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 21:03:37,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 21:03:37,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 21:03:37,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753c3d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37, skipping insertion in model container [2023-08-25 21:03:37,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,513 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 21:03:37,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:03:37,713 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 21:03:37,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:03:37,768 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 21:03:37,769 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 21:03:37,774 INFO L206 MainTranslator]: Completed translation [2023-08-25 21:03:37,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37 WrapperNode [2023-08-25 21:03:37,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 21:03:37,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 21:03:37,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 21:03:37,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 21:03:37,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,837 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 233 [2023-08-25 21:03:37,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 21:03:37,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 21:03:37,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 21:03:37,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 21:03:37,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 21:03:37,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 21:03:37,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 21:03:37,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 21:03:37,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (1/1) ... [2023-08-25 21:03:37,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:03:37,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:03:37,915 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 21:03:37,923 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 21:03:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 21:03:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 21:03:37,945 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 21:03:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 21:03:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 21:03:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 21:03:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 21:03:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 21:03:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 21:03:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 21:03:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 21:03:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 21:03:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 21:03:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 21:03:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 21:03:37,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 21:03:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 21:03:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 21:03:37,951 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 21:03:38,049 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 21:03:38,051 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 21:03:38,536 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 21:03:38,671 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 21:03:38,671 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 21:03:38,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:03:38 BoogieIcfgContainer [2023-08-25 21:03:38,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 21:03:38,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 21:03:38,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 21:03:38,678 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 21:03:38,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:03:37" (1/3) ... [2023-08-25 21:03:38,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cacedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:03:38, skipping insertion in model container [2023-08-25 21:03:38,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:03:37" (2/3) ... [2023-08-25 21:03:38,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cacedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:03:38, skipping insertion in model container [2023-08-25 21:03:38,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:03:38" (3/3) ... [2023-08-25 21:03:38,682 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-08-25 21:03:38,697 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 21:03:38,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-08-25 21:03:38,699 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 21:03:38,763 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 21:03:38,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 246 transitions, 524 flow [2023-08-25 21:03:38,915 INFO L124 PetriNetUnfolderBase]: 12/242 cut-off events. [2023-08-25 21:03:38,916 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 21:03:38,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 242 events. 12/242 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 168. Up to 2 conditions per place. [2023-08-25 21:03:38,924 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 246 transitions, 524 flow [2023-08-25 21:03:38,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 229 transitions, 482 flow [2023-08-25 21:03:38,938 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 21:03:38,952 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 229 transitions, 482 flow [2023-08-25 21:03:38,958 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 229 transitions, 482 flow [2023-08-25 21:03:38,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 229 transitions, 482 flow [2023-08-25 21:03:39,036 INFO L124 PetriNetUnfolderBase]: 12/229 cut-off events. [2023-08-25 21:03:39,036 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 21:03:39,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 229 events. 12/229 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 259 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 168. Up to 2 conditions per place. [2023-08-25 21:03:39,045 INFO L119 LiptonReduction]: Number of co-enabled transitions 7430 [2023-08-25 21:03:46,541 INFO L134 LiptonReduction]: Checked pairs total: 10345 [2023-08-25 21:03:46,542 INFO L136 LiptonReduction]: Total number of compositions: 301 [2023-08-25 21:03:46,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 21:03:46,560 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;@43b38a70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 21:03:46,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-08-25 21:03:46,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 21:03:46,562 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 21:03:46,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 21:03:46,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:46,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 21:03:46,563 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:46,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:46,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1131, now seen corresponding path program 1 times [2023-08-25 21:03:46,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:46,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289168625] [2023-08-25 21:03:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:46,653 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 21:03:46,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:46,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289168625] [2023-08-25 21:03:46,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289168625] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:03:46,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:03:46,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 21:03:46,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432286490] [2023-08-25 21:03:46,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:46,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 21:03:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:46,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 21:03:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 21:03:46,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 547 [2023-08-25 21:03:46,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 66 transitions, 156 flow. Second operand has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:46,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:46,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 547 [2023-08-25 21:03:46,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:46,780 INFO L124 PetriNetUnfolderBase]: 249/340 cut-off events. [2023-08-25 21:03:46,780 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-25 21:03:46,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 340 events. 249/340 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 641 event pairs, 117 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 508. Up to 341 conditions per place. [2023-08-25 21:03:46,784 INFO L140 encePairwiseOnDemand]: 506/547 looper letters, 25 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2023-08-25 21:03:46,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 25 transitions, 124 flow [2023-08-25 21:03:46,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 21:03:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 21:03:46,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 484 transitions. [2023-08-25 21:03:46,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424131627056673 [2023-08-25 21:03:46,801 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 484 transitions. [2023-08-25 21:03:46,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 484 transitions. [2023-08-25 21:03:46,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:46,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 484 transitions. [2023-08-25 21:03:46,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 242.0) internal successors, (484), 2 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:46,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:46,815 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:46,817 INFO L175 Difference]: Start difference. First operand has 75 places, 66 transitions, 156 flow. Second operand 2 states and 484 transitions. [2023-08-25 21:03:46,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 25 transitions, 124 flow [2023-08-25 21:03:46,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 108 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 21:03:46,822 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 58 flow [2023-08-25 21:03:46,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2023-08-25 21:03:46,827 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -48 predicate places. [2023-08-25 21:03:46,827 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 58 flow [2023-08-25 21:03:46,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:46,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:46,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:46,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 21:03:46,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:46,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1631969889, now seen corresponding path program 1 times [2023-08-25 21:03:46,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:46,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074373581] [2023-08-25 21:03:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:46,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:47,271 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 21:03:47,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:47,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074373581] [2023-08-25 21:03:47,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074373581] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:03:47,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:03:47,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 21:03:47,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536712835] [2023-08-25 21:03:47,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:47,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:03:47,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:47,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:03:47,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:03:47,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 547 [2023-08-25 21:03:47,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:47,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 547 [2023-08-25 21:03:47,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:47,396 INFO L124 PetriNetUnfolderBase]: 431/611 cut-off events. [2023-08-25 21:03:47,396 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-25 21:03:47,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 611 events. 431/611 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1718 event pairs, 117 based on Foata normal form. 1/414 useless extension candidates. Maximal degree in co-relation 1251. Up to 405 conditions per place. [2023-08-25 21:03:47,399 INFO L140 encePairwiseOnDemand]: 541/547 looper letters, 39 selfloop transitions, 3 changer transitions 3/45 dead transitions. [2023-08-25 21:03:47,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 45 transitions, 195 flow [2023-08-25 21:03:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:03:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:03:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2023-08-25 21:03:47,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4076782449725777 [2023-08-25 21:03:47,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 669 transitions. [2023-08-25 21:03:47,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 669 transitions. [2023-08-25 21:03:47,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:47,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 669 transitions. [2023-08-25 21:03:47,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.0) internal successors, (669), 3 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 21:03:47,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,412 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 58 flow. Second operand 3 states and 669 transitions. [2023-08-25 21:03:47,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 45 transitions, 195 flow [2023-08-25 21:03:47,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 45 transitions, 195 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:03:47,414 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 81 flow [2023-08-25 21:03:47,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2023-08-25 21:03:47,416 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -45 predicate places. [2023-08-25 21:03:47,418 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 81 flow [2023-08-25 21:03:47,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:47,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:47,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 21:03:47,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:47,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:47,427 INFO L85 PathProgramCache]: Analyzing trace with hash 164483541, now seen corresponding path program 1 times [2023-08-25 21:03:47,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:47,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131140763] [2023-08-25 21:03:47,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:47,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:47,664 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 21:03:47,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:47,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131140763] [2023-08-25 21:03:47,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131140763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:03:47,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:03:47,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:03:47,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020024269] [2023-08-25 21:03:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:47,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:47,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:47,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:47,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:03:47,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 547 [2023-08-25 21:03:47,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:47,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 547 [2023-08-25 21:03:47,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:47,846 INFO L124 PetriNetUnfolderBase]: 395/575 cut-off events. [2023-08-25 21:03:47,846 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2023-08-25 21:03:47,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1378 conditions, 575 events. 395/575 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1737 event pairs, 45 based on Foata normal form. 36/611 useless extension candidates. Maximal degree in co-relation 1373. Up to 369 conditions per place. [2023-08-25 21:03:47,849 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 33 selfloop transitions, 3 changer transitions 20/56 dead transitions. [2023-08-25 21:03:47,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 56 transitions, 261 flow [2023-08-25 21:03:47,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:47,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 842 transitions. [2023-08-25 21:03:47,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38482632541133455 [2023-08-25 21:03:47,853 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 842 transitions. [2023-08-25 21:03:47,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 842 transitions. [2023-08-25 21:03:47,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:47,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 842 transitions. [2023-08-25 21:03:47,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 210.5) internal successors, (842), 4 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,861 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,861 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 81 flow. Second operand 4 states and 842 transitions. [2023-08-25 21:03:47,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 56 transitions, 261 flow [2023-08-25 21:03:47,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 56 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:03:47,864 INFO L231 Difference]: Finished difference. Result has 33 places, 27 transitions, 91 flow [2023-08-25 21:03:47,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2023-08-25 21:03:47,866 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -42 predicate places. [2023-08-25 21:03:47,866 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 91 flow [2023-08-25 21:03:47,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:47,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:47,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:47,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 21:03:47,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:47,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:47,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1307953268, now seen corresponding path program 1 times [2023-08-25 21:03:47,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:47,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220829136] [2023-08-25 21:03:47,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:47,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:48,047 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 21:03:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220829136] [2023-08-25 21:03:48,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220829136] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:03:48,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:03:48,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 21:03:48,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666287969] [2023-08-25 21:03:48,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:48,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 21:03:48,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:48,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 21:03:48,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 21:03:48,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 547 [2023-08-25 21:03:48,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:48,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 547 [2023-08-25 21:03:48,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:48,221 INFO L124 PetriNetUnfolderBase]: 475/662 cut-off events. [2023-08-25 21:03:48,221 INFO L125 PetriNetUnfolderBase]: For 391/391 co-relation queries the response was YES. [2023-08-25 21:03:48,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 662 events. 475/662 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1845 event pairs, 65 based on Foata normal form. 40/702 useless extension candidates. Maximal degree in co-relation 1770. Up to 373 conditions per place. [2023-08-25 21:03:48,225 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 56 selfloop transitions, 6 changer transitions 0/62 dead transitions. [2023-08-25 21:03:48,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 62 transitions, 321 flow [2023-08-25 21:03:48,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:48,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 829 transitions. [2023-08-25 21:03:48,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3788848263254113 [2023-08-25 21:03:48,228 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 829 transitions. [2023-08-25 21:03:48,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 829 transitions. [2023-08-25 21:03:48,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:48,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 829 transitions. [2023-08-25 21:03:48,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 207.25) internal successors, (829), 4 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,235 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,235 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 91 flow. Second operand 4 states and 829 transitions. [2023-08-25 21:03:48,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 62 transitions, 321 flow [2023-08-25 21:03:48,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 62 transitions, 309 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 21:03:48,237 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 129 flow [2023-08-25 21:03:48,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2023-08-25 21:03:48,238 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -40 predicate places. [2023-08-25 21:03:48,238 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 129 flow [2023-08-25 21:03:48,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:48,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:48,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 21:03:48,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:48,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:48,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1704050576, now seen corresponding path program 2 times [2023-08-25 21:03:48,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271010372] [2023-08-25 21:03:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:48,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:48,332 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 21:03:48,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:48,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271010372] [2023-08-25 21:03:48,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271010372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:03:48,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:03:48,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:03:48,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005281404] [2023-08-25 21:03:48,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:48,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:03:48,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 547 [2023-08-25 21:03:48,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:48,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 547 [2023-08-25 21:03:48,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:48,512 INFO L124 PetriNetUnfolderBase]: 801/1128 cut-off events. [2023-08-25 21:03:48,512 INFO L125 PetriNetUnfolderBase]: For 1447/1447 co-relation queries the response was YES. [2023-08-25 21:03:48,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3524 conditions, 1128 events. 801/1128 cut-off events. For 1447/1447 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3558 event pairs, 199 based on Foata normal form. 58/1186 useless extension candidates. Maximal degree in co-relation 3516. Up to 605 conditions per place. [2023-08-25 21:03:48,519 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 63 selfloop transitions, 8 changer transitions 0/71 dead transitions. [2023-08-25 21:03:48,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 71 transitions, 437 flow [2023-08-25 21:03:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 843 transitions. [2023-08-25 21:03:48,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3852833638025594 [2023-08-25 21:03:48,522 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 843 transitions. [2023-08-25 21:03:48,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 843 transitions. [2023-08-25 21:03:48,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:48,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 843 transitions. [2023-08-25 21:03:48,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,530 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,530 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 129 flow. Second operand 4 states and 843 transitions. [2023-08-25 21:03:48,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 71 transitions, 437 flow [2023-08-25 21:03:48,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 71 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:03:48,534 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 204 flow [2023-08-25 21:03:48,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2023-08-25 21:03:48,537 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -36 predicate places. [2023-08-25 21:03:48,537 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 204 flow [2023-08-25 21:03:48,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:48,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:48,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:48,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 21:03:48,539 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:48,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:48,539 INFO L85 PathProgramCache]: Analyzing trace with hash 214245052, now seen corresponding path program 3 times [2023-08-25 21:03:48,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:48,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920066152] [2023-08-25 21:03:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:48,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:48,671 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 21:03:48,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920066152] [2023-08-25 21:03:48,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920066152] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123304220] [2023-08-25 21:03:48,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 21:03:48,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:03:48,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:03:48,677 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 21:03:48,687 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 21:03:48,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 21:03:48,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:03:48,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 21:03:48,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:03:49,018 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 21:03:49,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:03:49,084 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 21:03:49,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123304220] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:49,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 21:03:49,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 8 [2023-08-25 21:03:49,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913914244] [2023-08-25 21:03:49,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:49,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:49,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-08-25 21:03:49,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 547 [2023-08-25 21:03:49,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:49,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 547 [2023-08-25 21:03:49,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:49,327 INFO L124 PetriNetUnfolderBase]: 1143/1618 cut-off events. [2023-08-25 21:03:49,327 INFO L125 PetriNetUnfolderBase]: For 2615/2615 co-relation queries the response was YES. [2023-08-25 21:03:49,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5715 conditions, 1618 events. 1143/1618 cut-off events. For 2615/2615 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5798 event pairs, 253 based on Foata normal form. 36/1654 useless extension candidates. Maximal degree in co-relation 5705. Up to 822 conditions per place. [2023-08-25 21:03:49,341 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 67 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2023-08-25 21:03:49,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 76 transitions, 521 flow [2023-08-25 21:03:49,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 847 transitions. [2023-08-25 21:03:49,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38711151736745886 [2023-08-25 21:03:49,344 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 847 transitions. [2023-08-25 21:03:49,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 847 transitions. [2023-08-25 21:03:49,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:49,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 847 transitions. [2023-08-25 21:03:49,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 211.75) internal successors, (847), 4 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,349 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,350 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 204 flow. Second operand 4 states and 847 transitions. [2023-08-25 21:03:49,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 76 transitions, 521 flow [2023-08-25 21:03:49,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 76 transitions, 515 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:03:49,354 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 269 flow [2023-08-25 21:03:49,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-25 21:03:49,355 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -32 predicate places. [2023-08-25 21:03:49,355 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 269 flow [2023-08-25 21:03:49,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:49,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:49,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 21:03:49,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-25 21:03:49,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:49,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:49,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2120497561, now seen corresponding path program 2 times [2023-08-25 21:03:49,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:49,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96580945] [2023-08-25 21:03:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:49,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:49,694 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 21:03:49,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:49,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96580945] [2023-08-25 21:03:49,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96580945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:03:49,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:03:49,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:03:49,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155214248] [2023-08-25 21:03:49,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:49,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:49,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:49,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:49,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:03:49,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 547 [2023-08-25 21:03:49,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 269 flow. Second operand has 4 states, 4 states have (on average 197.5) internal successors, (790), 4 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:49,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 547 [2023-08-25 21:03:49,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:49,913 INFO L124 PetriNetUnfolderBase]: 1225/1732 cut-off events. [2023-08-25 21:03:49,913 INFO L125 PetriNetUnfolderBase]: For 5242/5242 co-relation queries the response was YES. [2023-08-25 21:03:49,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6670 conditions, 1732 events. 1225/1732 cut-off events. For 5242/5242 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6339 event pairs, 305 based on Foata normal form. 22/1754 useless extension candidates. Maximal degree in co-relation 6659. Up to 1593 conditions per place. [2023-08-25 21:03:49,926 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 51 selfloop transitions, 4 changer transitions 14/69 dead transitions. [2023-08-25 21:03:49,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 69 transitions, 547 flow [2023-08-25 21:03:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:49,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 821 transitions. [2023-08-25 21:03:49,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37522851919561245 [2023-08-25 21:03:49,929 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 821 transitions. [2023-08-25 21:03:49,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 821 transitions. [2023-08-25 21:03:49,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:49,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 821 transitions. [2023-08-25 21:03:49,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 205.25) internal successors, (821), 4 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,934 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,934 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 269 flow. Second operand 4 states and 821 transitions. [2023-08-25 21:03:49,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 69 transitions, 547 flow [2023-08-25 21:03:49,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 69 transitions, 547 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:03:49,939 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 307 flow [2023-08-25 21:03:49,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-08-25 21:03:49,940 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -27 predicate places. [2023-08-25 21:03:49,940 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 307 flow [2023-08-25 21:03:49,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 197.5) internal successors, (790), 4 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:49,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:49,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:49,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 21:03:49,941 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:49,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:49,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1440095181, now seen corresponding path program 3 times [2023-08-25 21:03:49,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:49,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472624749] [2023-08-25 21:03:49,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:49,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:50,030 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 21:03:50,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:50,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472624749] [2023-08-25 21:03:50,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472624749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:03:50,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:03:50,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:03:50,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198744854] [2023-08-25 21:03:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:50,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:50,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:50,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:50,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:03:50,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 547 [2023-08-25 21:03:50,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:50,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 547 [2023-08-25 21:03:50,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:50,199 INFO L124 PetriNetUnfolderBase]: 795/1086 cut-off events. [2023-08-25 21:03:50,200 INFO L125 PetriNetUnfolderBase]: For 4960/4960 co-relation queries the response was YES. [2023-08-25 21:03:50,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4866 conditions, 1086 events. 795/1086 cut-off events. For 4960/4960 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3278 event pairs, 229 based on Foata normal form. 80/1166 useless extension candidates. Maximal degree in co-relation 4852. Up to 797 conditions per place. [2023-08-25 21:03:50,208 INFO L140 encePairwiseOnDemand]: 543/547 looper letters, 47 selfloop transitions, 7 changer transitions 3/57 dead transitions. [2023-08-25 21:03:50,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 456 flow [2023-08-25 21:03:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:50,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:50,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 830 transitions. [2023-08-25 21:03:50,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3793418647166362 [2023-08-25 21:03:50,211 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 830 transitions. [2023-08-25 21:03:50,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 830 transitions. [2023-08-25 21:03:50,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:50,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 830 transitions. [2023-08-25 21:03:50,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 207.5) internal successors, (830), 4 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,217 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,217 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 307 flow. Second operand 4 states and 830 transitions. [2023-08-25 21:03:50,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 456 flow [2023-08-25 21:03:50,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 450 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 21:03:50,224 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 277 flow [2023-08-25 21:03:50,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-08-25 21:03:50,225 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -26 predicate places. [2023-08-25 21:03:50,225 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 277 flow [2023-08-25 21:03:50,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:50,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:50,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 21:03:50,226 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:50,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:50,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1894704771, now seen corresponding path program 1 times [2023-08-25 21:03:50,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:50,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475527813] [2023-08-25 21:03:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:50,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:03:50,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:50,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475527813] [2023-08-25 21:03:50,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475527813] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:50,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640297203] [2023-08-25 21:03:50,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:50,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:03:50,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:03:50,393 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 21:03:50,396 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 21:03:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:50,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 21:03:50,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:03:50,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:03:50,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:03:50,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:03:50,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640297203] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:50,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 21:03:50,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 8 [2023-08-25 21:03:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934900048] [2023-08-25 21:03:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:50,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:50,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:50,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:50,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-08-25 21:03:50,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 547 [2023-08-25 21:03:50,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:50,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 547 [2023-08-25 21:03:50,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:50,919 INFO L124 PetriNetUnfolderBase]: 1186/1631 cut-off events. [2023-08-25 21:03:50,920 INFO L125 PetriNetUnfolderBase]: For 6615/6615 co-relation queries the response was YES. [2023-08-25 21:03:50,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7195 conditions, 1631 events. 1186/1631 cut-off events. For 6615/6615 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5549 event pairs, 140 based on Foata normal form. 60/1691 useless extension candidates. Maximal degree in co-relation 7181. Up to 933 conditions per place. [2023-08-25 21:03:50,936 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 69 selfloop transitions, 8 changer transitions 0/77 dead transitions. [2023-08-25 21:03:50,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 77 transitions, 634 flow [2023-08-25 21:03:50,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:50,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:50,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 846 transitions. [2023-08-25 21:03:50,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.386654478976234 [2023-08-25 21:03:50,940 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 846 transitions. [2023-08-25 21:03:50,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 846 transitions. [2023-08-25 21:03:50,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:50,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 846 transitions. [2023-08-25 21:03:50,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,946 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,946 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 277 flow. Second operand 4 states and 846 transitions. [2023-08-25 21:03:50,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 77 transitions, 634 flow [2023-08-25 21:03:50,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 577 flow, removed 24 selfloop flow, removed 4 redundant places. [2023-08-25 21:03:50,963 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 309 flow [2023-08-25 21:03:50,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=309, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-08-25 21:03:50,965 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -27 predicate places. [2023-08-25 21:03:50,965 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 309 flow [2023-08-25 21:03:50,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:50,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:50,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:50,974 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 21:03:51,171 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 21:03:51,172 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:51,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash 590938487, now seen corresponding path program 1 times [2023-08-25 21:03:51,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:51,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97693247] [2023-08-25 21:03:51,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:51,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:03:51,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:51,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97693247] [2023-08-25 21:03:51,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97693247] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:51,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090144836] [2023-08-25 21:03:51,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:51,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:03:51,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:03:51,294 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 21:03:51,297 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 21:03:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:51,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 21:03:51,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:03:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:03:51,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:03:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:03:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090144836] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:51,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 21:03:51,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 8 [2023-08-25 21:03:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118267151] [2023-08-25 21:03:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:03:51,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-08-25 21:03:51,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 547 [2023-08-25 21:03:51,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 309 flow. Second operand has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 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 21:03:51,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:51,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 547 [2023-08-25 21:03:51,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:51,904 INFO L124 PetriNetUnfolderBase]: 2236/3091 cut-off events. [2023-08-25 21:03:51,904 INFO L125 PetriNetUnfolderBase]: For 11300/11300 co-relation queries the response was YES. [2023-08-25 21:03:51,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13091 conditions, 3091 events. 2236/3091 cut-off events. For 11300/11300 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 12001 event pairs, 330 based on Foata normal form. 146/3237 useless extension candidates. Maximal degree in co-relation 13078. Up to 1467 conditions per place. [2023-08-25 21:03:51,927 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 82 selfloop transitions, 11 changer transitions 0/93 dead transitions. [2023-08-25 21:03:51,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 93 transitions, 828 flow [2023-08-25 21:03:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 846 transitions. [2023-08-25 21:03:51,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.386654478976234 [2023-08-25 21:03:51,930 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 846 transitions. [2023-08-25 21:03:51,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 846 transitions. [2023-08-25 21:03:51,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:51,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 846 transitions. [2023-08-25 21:03:51,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 211.5) internal successors, (846), 4 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:51,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:51,936 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:51,936 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 309 flow. Second operand 4 states and 846 transitions. [2023-08-25 21:03:51,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 93 transitions, 828 flow [2023-08-25 21:03:51,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 828 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:03:51,944 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 427 flow [2023-08-25 21:03:51,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=427, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2023-08-25 21:03:51,944 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -22 predicate places. [2023-08-25 21:03:51,945 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 427 flow [2023-08-25 21:03:51,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 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 21:03:51,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:51,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:51,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 21:03:52,151 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 21:03:52,152 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:52,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1262250185, now seen corresponding path program 1 times [2023-08-25 21:03:52,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:52,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464474601] [2023-08-25 21:03:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:52,384 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 21:03:52,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464474601] [2023-08-25 21:03:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464474601] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168349951] [2023-08-25 21:03:52,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:52,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:03:52,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:03:52,386 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 21:03:52,410 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 21:03:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:52,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-25 21:03:52,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:03:52,572 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 21:03:52,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:03:52,628 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 21:03:52,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168349951] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:03:52,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:03:52,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2023-08-25 21:03:52,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560969829] [2023-08-25 21:03:52,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:03:52,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:03:52,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:52,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:03:52,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:03:52,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 547 [2023-08-25 21:03:52,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 213.25) internal successors, (853), 4 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:52,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:52,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 547 [2023-08-25 21:03:52,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:53,388 INFO L124 PetriNetUnfolderBase]: 4762/6785 cut-off events. [2023-08-25 21:03:53,388 INFO L125 PetriNetUnfolderBase]: For 33185/33185 co-relation queries the response was YES. [2023-08-25 21:03:53,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30561 conditions, 6785 events. 4762/6785 cut-off events. For 33185/33185 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 32817 event pairs, 1456 based on Foata normal form. 634/7419 useless extension candidates. Maximal degree in co-relation 30546. Up to 3473 conditions per place. [2023-08-25 21:03:53,442 INFO L140 encePairwiseOnDemand]: 541/547 looper letters, 90 selfloop transitions, 29 changer transitions 3/122 dead transitions. [2023-08-25 21:03:53,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 122 transitions, 1267 flow [2023-08-25 21:03:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:03:53,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:03:53,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 899 transitions. [2023-08-25 21:03:53,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4108775137111517 [2023-08-25 21:03:53,445 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 899 transitions. [2023-08-25 21:03:53,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 899 transitions. [2023-08-25 21:03:53,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:53,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 899 transitions. [2023-08-25 21:03:53,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 224.75) internal successors, (899), 4 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:53,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:53,450 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:53,451 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 427 flow. Second operand 4 states and 899 transitions. [2023-08-25 21:03:53,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 122 transitions, 1267 flow [2023-08-25 21:03:53,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 122 transitions, 1267 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:03:53,461 INFO L231 Difference]: Finished difference. Result has 58 places, 74 transitions, 843 flow [2023-08-25 21:03:53,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=843, PETRI_PLACES=58, PETRI_TRANSITIONS=74} [2023-08-25 21:03:53,462 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -17 predicate places. [2023-08-25 21:03:53,462 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 74 transitions, 843 flow [2023-08-25 21:03:53,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 213.25) internal successors, (853), 4 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:53,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:53,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:53,473 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 21:03:53,670 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 21:03:53,671 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:53,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:53,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1257042805, now seen corresponding path program 2 times [2023-08-25 21:03:53,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:53,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482823794] [2023-08-25 21:03:53,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:53,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:03:53,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482823794] [2023-08-25 21:03:53,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482823794] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976233460] [2023-08-25 21:03:53,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 21:03:53,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:03:53,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:03:53,867 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 21:03:53,871 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 21:03:54,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 21:03:54,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:03:54,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-25 21:03:54,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:03:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:03:54,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:03:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:03:54,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976233460] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:03:54,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:03:54,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-08-25 21:03:54,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963129939] [2023-08-25 21:03:54,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:03:54,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 21:03:54,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:54,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 21:03:54,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 21:03:54,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 547 [2023-08-25 21:03:54,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 74 transitions, 843 flow. Second operand has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:54,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:54,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 547 [2023-08-25 21:03:54,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:03:55,745 INFO L124 PetriNetUnfolderBase]: 9386/13396 cut-off events. [2023-08-25 21:03:55,747 INFO L125 PetriNetUnfolderBase]: For 97976/97976 co-relation queries the response was YES. [2023-08-25 21:03:55,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69446 conditions, 13396 events. 9386/13396 cut-off events. For 97976/97976 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 73378 event pairs, 2230 based on Foata normal form. 691/14087 useless extension candidates. Maximal degree in co-relation 69428. Up to 5627 conditions per place. [2023-08-25 21:03:55,859 INFO L140 encePairwiseOnDemand]: 541/547 looper letters, 116 selfloop transitions, 72 changer transitions 3/191 dead transitions. [2023-08-25 21:03:55,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 191 transitions, 2307 flow [2023-08-25 21:03:55,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 21:03:55,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 21:03:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1129 transitions. [2023-08-25 21:03:55,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127970749542962 [2023-08-25 21:03:55,863 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1129 transitions. [2023-08-25 21:03:55,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1129 transitions. [2023-08-25 21:03:55,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:03:55,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1129 transitions. [2023-08-25 21:03:55,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:55,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 547.0) internal successors, (3282), 6 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:55,882 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 547.0) internal successors, (3282), 6 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:55,882 INFO L175 Difference]: Start difference. First operand has 58 places, 74 transitions, 843 flow. Second operand 5 states and 1129 transitions. [2023-08-25 21:03:55,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 191 transitions, 2307 flow [2023-08-25 21:03:55,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 191 transitions, 2271 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-08-25 21:03:55,909 INFO L231 Difference]: Finished difference. Result has 64 places, 117 transitions, 1600 flow [2023-08-25 21:03:55,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1600, PETRI_PLACES=64, PETRI_TRANSITIONS=117} [2023-08-25 21:03:55,911 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -11 predicate places. [2023-08-25 21:03:55,911 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 117 transitions, 1600 flow [2023-08-25 21:03:55,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:55,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:03:55,913 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:55,924 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 21:03:56,119 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 21:03:56,119 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:03:56,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:03:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1209869744, now seen corresponding path program 3 times [2023-08-25 21:03:56,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:03:56,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137168620] [2023-08-25 21:03:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:03:56,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:03:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:03:56,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:03:56,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:03:56,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137168620] [2023-08-25 21:03:56,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137168620] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:03:56,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853009351] [2023-08-25 21:03:56,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 21:03:56,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:03:56,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:03:56,268 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 21:03:56,290 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 21:03:56,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 21:03:56,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:03:56,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-25 21:03:56,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:03:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:03:56,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:03:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:03:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853009351] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:03:56,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:03:56,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2023-08-25 21:03:56,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811588541] [2023-08-25 21:03:56,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:03:56,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-25 21:03:56,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:03:56,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-25 21:03:56,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-08-25 21:03:56,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 547 [2023-08-25 21:03:56,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 117 transitions, 1600 flow. Second operand has 15 states, 15 states have (on average 195.66666666666666) internal successors, (2935), 15 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:03:56,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:03:56,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 547 [2023-08-25 21:03:56,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:01,943 INFO L124 PetriNetUnfolderBase]: 29067/41354 cut-off events. [2023-08-25 21:04:01,943 INFO L125 PetriNetUnfolderBase]: For 347137/347137 co-relation queries the response was YES. [2023-08-25 21:04:02,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246070 conditions, 41354 events. 29067/41354 cut-off events. For 347137/347137 co-relation queries the response was YES. Maximal size of possible extension queue 1567. Compared 264274 event pairs, 2372 based on Foata normal form. 7318/48672 useless extension candidates. Maximal degree in co-relation 246049. Up to 16685 conditions per place. [2023-08-25 21:04:02,330 INFO L140 encePairwiseOnDemand]: 540/547 looper letters, 819 selfloop transitions, 458 changer transitions 3/1280 dead transitions. [2023-08-25 21:04:02,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 1280 transitions, 18427 flow [2023-08-25 21:04:02,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-08-25 21:04:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-08-25 21:04:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 7347 transitions. [2023-08-25 21:04:02,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3730956733698964 [2023-08-25 21:04:02,349 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 7347 transitions. [2023-08-25 21:04:02,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 7347 transitions. [2023-08-25 21:04:02,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:02,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 7347 transitions. [2023-08-25 21:04:02,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 204.08333333333334) internal successors, (7347), 36 states have internal predecessors, (7347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:02,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 547.0) internal successors, (20239), 37 states have internal predecessors, (20239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:02,391 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 547.0) internal successors, (20239), 37 states have internal predecessors, (20239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:02,391 INFO L175 Difference]: Start difference. First operand has 64 places, 117 transitions, 1600 flow. Second operand 36 states and 7347 transitions. [2023-08-25 21:04:02,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 1280 transitions, 18427 flow [2023-08-25 21:04:02,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 1280 transitions, 17143 flow, removed 642 selfloop flow, removed 0 redundant places. [2023-08-25 21:04:02,845 INFO L231 Difference]: Finished difference. Result has 128 places, 563 transitions, 9618 flow [2023-08-25 21:04:02,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1478, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=9618, PETRI_PLACES=128, PETRI_TRANSITIONS=563} [2023-08-25 21:04:02,846 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 53 predicate places. [2023-08-25 21:04:02,846 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 563 transitions, 9618 flow [2023-08-25 21:04:02,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 195.66666666666666) internal successors, (2935), 15 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:02,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:02,847 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:02,854 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 21:04:03,053 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 21:04:03,053 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:04:03,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:03,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1683187617, now seen corresponding path program 4 times [2023-08-25 21:04:03,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:03,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890416791] [2023-08-25 21:04:03,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:03,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:04:03,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:03,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890416791] [2023-08-25 21:04:03,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890416791] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:04:03,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174622344] [2023-08-25 21:04:03,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 21:04:03,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:04:03,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:04:03,188 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 21:04:03,190 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 21:04:03,385 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 21:04:03,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:04:03,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-25 21:04:03,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:04:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:04:03,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:04:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:04:03,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174622344] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:04:03,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:04:03,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2023-08-25 21:04:03,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854877528] [2023-08-25 21:04:03,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:04:03,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 21:04:03,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:03,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 21:04:03,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-08-25 21:04:03,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 547 [2023-08-25 21:04:03,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 563 transitions, 9618 flow. Second operand has 13 states, 13 states have (on average 200.84615384615384) internal successors, (2611), 13 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:03,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:03,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 547 [2023-08-25 21:04:03,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:14,039 INFO L124 PetriNetUnfolderBase]: 39004/55486 cut-off events. [2023-08-25 21:04:14,039 INFO L125 PetriNetUnfolderBase]: For 2200829/2200829 co-relation queries the response was YES. [2023-08-25 21:04:14,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518928 conditions, 55486 events. 39004/55486 cut-off events. For 2200829/2200829 co-relation queries the response was YES. Maximal size of possible extension queue 2212. Compared 366570 event pairs, 7828 based on Foata normal form. 1620/57106 useless extension candidates. Maximal degree in co-relation 518878. Up to 27345 conditions per place. [2023-08-25 21:04:14,997 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 856 selfloop transitions, 194 changer transitions 70/1120 dead transitions. [2023-08-25 21:04:14,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 1120 transitions, 21493 flow [2023-08-25 21:04:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 21:04:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 21:04:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3333 transitions. [2023-08-25 21:04:15,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.380827239488117 [2023-08-25 21:04:15,009 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3333 transitions. [2023-08-25 21:04:15,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3333 transitions. [2023-08-25 21:04:15,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:15,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3333 transitions. [2023-08-25 21:04:15,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 208.3125) internal successors, (3333), 16 states have internal predecessors, (3333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:15,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 547.0) internal successors, (9299), 17 states have internal predecessors, (9299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:15,030 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 547.0) internal successors, (9299), 17 states have internal predecessors, (9299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:15,030 INFO L175 Difference]: Start difference. First operand has 128 places, 563 transitions, 9618 flow. Second operand 16 states and 3333 transitions. [2023-08-25 21:04:15,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 1120 transitions, 21493 flow [2023-08-25 21:04:24,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 1120 transitions, 19371 flow, removed 967 selfloop flow, removed 5 redundant places. [2023-08-25 21:04:24,040 INFO L231 Difference]: Finished difference. Result has 144 places, 709 transitions, 12037 flow [2023-08-25 21:04:24,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=8081, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=12037, PETRI_PLACES=144, PETRI_TRANSITIONS=709} [2023-08-25 21:04:24,040 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 69 predicate places. [2023-08-25 21:04:24,041 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 709 transitions, 12037 flow [2023-08-25 21:04:24,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 200.84615384615384) internal successors, (2611), 13 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:24,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:24,042 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:24,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 21:04:24,247 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 21:04:24,248 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:04:24,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:24,248 INFO L85 PathProgramCache]: Analyzing trace with hash -159228145, now seen corresponding path program 5 times [2023-08-25 21:04:24,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:24,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804692327] [2023-08-25 21:04:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:24,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:04:24,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:24,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804692327] [2023-08-25 21:04:24,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804692327] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:04:24,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349239495] [2023-08-25 21:04:24,395 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 21:04:24,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:04:24,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:04:24,397 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 21:04:24,399 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 21:04:24,547 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-08-25 21:04:24,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:04:24,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 21:04:24,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:04:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:04:24,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:04:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:04:24,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349239495] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:04:24,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:04:24,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-08-25 21:04:24,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563320355] [2023-08-25 21:04:24,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:04:24,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-25 21:04:24,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:24,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-25 21:04:24,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-08-25 21:04:24,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 547 [2023-08-25 21:04:24,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 709 transitions, 12037 flow. Second operand has 14 states, 14 states have (on average 195.85714285714286) internal successors, (2742), 14 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:24,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:24,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 547 [2023-08-25 21:04:24,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:48,988 INFO L124 PetriNetUnfolderBase]: 80158/114191 cut-off events. [2023-08-25 21:04:48,989 INFO L125 PetriNetUnfolderBase]: For 5202007/5202007 co-relation queries the response was YES. [2023-08-25 21:04:50,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101491 conditions, 114191 events. 80158/114191 cut-off events. For 5202007/5202007 co-relation queries the response was YES. Maximal size of possible extension queue 4732. Compared 838993 event pairs, 8871 based on Foata normal form. 3000/117191 useless extension candidates. Maximal degree in co-relation 1101434. Up to 35761 conditions per place. [2023-08-25 21:04:50,829 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 1605 selfloop transitions, 577 changer transitions 160/2342 dead transitions. [2023-08-25 21:04:50,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 2342 transitions, 50673 flow [2023-08-25 21:04:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 21:04:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 21:04:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3492 transitions. [2023-08-25 21:04:50,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3755242499193462 [2023-08-25 21:04:50,838 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3492 transitions. [2023-08-25 21:04:50,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3492 transitions. [2023-08-25 21:04:50,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:50,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3492 transitions. [2023-08-25 21:04:50,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 205.41176470588235) internal successors, (3492), 17 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:50,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 547.0) internal successors, (9846), 18 states have internal predecessors, (9846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:50,855 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 547.0) internal successors, (9846), 18 states have internal predecessors, (9846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:50,855 INFO L175 Difference]: Start difference. First operand has 144 places, 709 transitions, 12037 flow. Second operand 17 states and 3492 transitions. [2023-08-25 21:04:50,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 2342 transitions, 50673 flow [2023-08-25 21:08:57,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 2342 transitions, 43595 flow, removed 3457 selfloop flow, removed 5 redundant places. [2023-08-25 21:08:57,717 INFO L231 Difference]: Finished difference. Result has 162 places, 1153 transitions, 21425 flow [2023-08-25 21:08:57,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=10915, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21425, PETRI_PLACES=162, PETRI_TRANSITIONS=1153} [2023-08-25 21:08:57,718 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 87 predicate places. [2023-08-25 21:08:57,718 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 1153 transitions, 21425 flow [2023-08-25 21:08:57,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 195.85714285714286) internal successors, (2742), 14 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:08:57,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:08:57,719 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:08:57,724 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 21:08:57,919 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 21:08:57,920 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 21:08:57,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:08:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash -602035450, now seen corresponding path program 6 times [2023-08-25 21:08:57,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:08:57,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676829798] [2023-08-25 21:08:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:08:57,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:08:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:08:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:08:58,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:08:58,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676829798] [2023-08-25 21:08:58,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676829798] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:08:58,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79446812] [2023-08-25 21:08:58,033 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 21:08:58,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:08:58,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:08:58,035 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 21:08:58,037 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 21:08:58,211 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 21:08:58,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:08:58,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-25 21:08:58,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:08:58,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:08:58,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:08:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:08:58,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79446812] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:08:58,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:08:58,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-08-25 21:08:58,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446923480] [2023-08-25 21:08:58,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:08:58,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-25 21:08:58,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:08:58,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-25 21:08:58,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-08-25 21:08:58,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 547 [2023-08-25 21:08:58,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 1153 transitions, 21425 flow. Second operand has 14 states, 14 states have (on average 195.42857142857142) internal successors, (2736), 14 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:08:58,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:08:58,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 547 [2023-08-25 21:08:58,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:09:59,229 INFO L124 PetriNetUnfolderBase]: 155451/221904 cut-off events. [2023-08-25 21:09:59,229 INFO L125 PetriNetUnfolderBase]: For 9070112/9070112 co-relation queries the response was YES. [2023-08-25 21:10:01,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2147086 conditions, 221904 events. 155451/221904 cut-off events. For 9070112/9070112 co-relation queries the response was YES. Maximal size of possible extension queue 9129. Compared 1744152 event pairs, 16688 based on Foata normal form. 20642/242546 useless extension candidates. Maximal degree in co-relation 2147022. Up to 71195 conditions per place. [2023-08-25 21:10:03,027 INFO L140 encePairwiseOnDemand]: 540/547 looper letters, 4636 selfloop transitions, 1301 changer transitions 162/6099 dead transitions. [2023-08-25 21:10:03,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 6099 transitions, 139177 flow [2023-08-25 21:10:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-08-25 21:10:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-08-25 21:10:03,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 11095 transitions. [2023-08-25 21:10:03,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3687884327738076 [2023-08-25 21:10:03,046 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 11095 transitions. [2023-08-25 21:10:03,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 11095 transitions. [2023-08-25 21:10:03,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:10:03,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 11095 transitions. [2023-08-25 21:10:03,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 201.72727272727272) internal successors, (11095), 55 states have internal predecessors, (11095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:10:03,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 547.0) internal successors, (30632), 56 states have internal predecessors, (30632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:10:03,088 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 547.0) internal successors, (30632), 56 states have internal predecessors, (30632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:10:03,089 INFO L175 Difference]: Start difference. First operand has 162 places, 1153 transitions, 21425 flow. Second operand 55 states and 11095 transitions. [2023-08-25 21:10:03,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 6099 transitions, 139177 flow Received shutdown request... [2023-08-25 21:17:38,504 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 21:17:38,504 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 21:17:39,528 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 21:17:39,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-25 21:17:43,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15ASSERT_VIOLATIONASSERT (71 of 72 remaining) [2023-08-25 21:17:43,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 21:17:43,010 WARN L619 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2023-08-25 21:17:43,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (70 of 72 remaining) [2023-08-25 21:17:43,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (69 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (68 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (67 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (66 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (65 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (64 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (62 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (61 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (60 of 72 remaining) [2023-08-25 21:17:43,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (59 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (58 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (57 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (56 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (55 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (54 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (53 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (52 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 72 remaining) [2023-08-25 21:17:43,013 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (45 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (44 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (43 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (42 of 72 remaining) [2023-08-25 21:17:43,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (41 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (40 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (39 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (38 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (37 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err0ASSERT_VIOLATIONDATA_RACE (32 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err1ASSERT_VIOLATIONDATA_RACE (31 of 72 remaining) [2023-08-25 21:17:43,015 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err2ASSERT_VIOLATIONDATA_RACE (30 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err3ASSERT_VIOLATIONDATA_RACE (29 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err4ASSERT_VIOLATIONDATA_RACE (28 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err5ASSERT_VIOLATIONDATA_RACE (27 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err6ASSERT_VIOLATIONDATA_RACE (26 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (25 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (24 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (23 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (22 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (21 of 72 remaining) [2023-08-25 21:17:43,016 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (20 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (15 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (14 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (12 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (11 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (10 of 72 remaining) [2023-08-25 21:17:43,017 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (9 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (8 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (7 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err0ASSERT_VIOLATIONDATA_RACE (6 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err1ASSERT_VIOLATIONDATA_RACE (5 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err2ASSERT_VIOLATIONDATA_RACE (4 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err3ASSERT_VIOLATIONDATA_RACE (3 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err4ASSERT_VIOLATIONDATA_RACE (2 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err5ASSERT_VIOLATIONDATA_RACE (1 of 72 remaining) [2023-08-25 21:17:43,018 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err6ASSERT_VIOLATIONDATA_RACE (0 of 72 remaining) [2023-08-25 21:17:43,019 INFO L445 BasicCegarLoop]: Path program histogram: [6, 3, 3, 1, 1, 1, 1] [2023-08-25 21:17:43,023 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 21:17:43,023 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 21:17:43,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:17:43 BasicIcfg [2023-08-25 21:17:43,026 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 21:17:43,026 INFO L158 Benchmark]: Toolchain (without parser) took 845544.35ms. Allocated memory was 373.3MB in the beginning and 15.0GB in the end (delta: 14.6GB). Free memory was 349.6MB in the beginning and 6.3GB in the end (delta: -6.0GB). Peak memory consumption was 14.7GB. Max. memory is 16.0GB. [2023-08-25 21:17:43,027 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 373.3MB. Free memory is still 351.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 21:17:43,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.37ms. Allocated memory is still 373.3MB. Free memory was 348.9MB in the beginning and 337.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 21:17:43,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.39ms. Allocated memory is still 373.3MB. Free memory was 337.5MB in the beginning and 334.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:17:43,027 INFO L158 Benchmark]: Boogie Preprocessor took 42.23ms. Allocated memory is still 373.3MB. Free memory was 334.7MB in the beginning and 332.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:17:43,028 INFO L158 Benchmark]: RCFGBuilder took 792.69ms. Allocated memory is still 373.3MB. Free memory was 332.6MB in the beginning and 294.1MB in the end (delta: 38.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-25 21:17:43,028 INFO L158 Benchmark]: TraceAbstraction took 844350.55ms. Allocated memory was 373.3MB in the beginning and 15.0GB in the end (delta: 14.6GB). Free memory was 293.4MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 14.6GB. Max. memory is 16.0GB. [2023-08-25 21:17:43,029 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 373.3MB. Free memory is still 351.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 292.37ms. Allocated memory is still 373.3MB. Free memory was 348.9MB in the beginning and 337.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.39ms. Allocated memory is still 373.3MB. Free memory was 337.5MB in the beginning and 334.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 42.23ms. Allocated memory is still 373.3MB. Free memory was 334.7MB in the beginning and 332.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 792.69ms. Allocated memory is still 373.3MB. Free memory was 332.6MB in the beginning and 294.1MB in the end (delta: 38.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * TraceAbstraction took 844350.55ms. Allocated memory was 373.3MB in the beginning and 15.0GB in the end (delta: 14.6GB). Free memory was 293.4MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 14.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 230 PlacesBefore, 75 PlacesAfterwards, 229 TransitionsBefore, 66 TransitionsAfterwards, 7430 CoEnabledTransitionPairs, 9 FixpointIterations, 135 TrivialSequentialCompositions, 132 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 14 ConcurrentYvCompositions, 8 ChoiceCompositions, 301 TotalNumberOfCompositions, 10345 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10345, independent: 10345, independent conditional: 0, independent unconditional: 10345, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3882, independent: 3882, independent conditional: 0, independent unconditional: 3882, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10345, independent: 6463, independent conditional: 0, independent unconditional: 6463, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3882, unknown conditional: 0, unknown unconditional: 3882] , Statistics on independence cache: Total cache size (in pairs): 254, Positive cache size: 254, Positive conditional cache size: 0, Positive unconditional cache size: 254, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 301 locations, 72 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: 844.2s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 829.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1722 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1722 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3323 IncrementalHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 0 mSDtfsCounter, 3323 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 582 GetRequests, 389 SyntacticMatches, 15 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21425occurred in iteration=15, InterpolantAutomatonStates: 115, 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: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 767 ConstructedInterpolants, 0 QuantifiedInterpolants, 4119 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2864 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 34 InterpolantComputations, 10 PerfectInterpolantSequences, 69/119 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