/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/pthread-wmm/safe002_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 14:04:30,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 14:04:30,631 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 14:04:30,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 14:04:30,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 14:04:30,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 14:04:30,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 14:04:30,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 14:04:30,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 14:04:30,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 14:04:30,657 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 14:04:30,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 14:04:30,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 14:04:30,658 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 14:04:30,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 14:04:30,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 14:04:30,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 14:04:30,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 14:04:30,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 14:04:30,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 14:04:30,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 14:04:30,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 14:04:30,662 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 14:04:30,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 14:04:30,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 14:04:30,663 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 14:04:30,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 14:04:30,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:04:30,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 14:04:30,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 14:04:30,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 14:04:30,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 14:04:30,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 14:04:30,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 14:04:30,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 14:04:30,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 14:04:30,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 14:04:30,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 14:04:30,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 14:04:31,000 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 14:04:31,001 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 14:04:31,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2023-08-25 14:04:32,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 14:04:32,444 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 14:04:32,448 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2023-08-25 14:04:32,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99850f43f/45d8c7c01d064666b3398d3c76e424dd/FLAGcd07fc1ad [2023-08-25 14:04:32,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99850f43f/45d8c7c01d064666b3398d3c76e424dd [2023-08-25 14:04:32,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 14:04:32,480 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 14:04:32,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 14:04:32,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 14:04:32,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 14:04:32,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ef656a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32, skipping insertion in model container [2023-08-25 14:04:32,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,518 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 14:04:32,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:04:32,812 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 14:04:32,827 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:04:32,829 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:04:32,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:04:32,873 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:04:32,874 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:04:32,880 INFO L206 MainTranslator]: Completed translation [2023-08-25 14:04:32,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32 WrapperNode [2023-08-25 14:04:32,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 14:04:32,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 14:04:32,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 14:04:32,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 14:04:32,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,917 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-08-25 14:04:32,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 14:04:32,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 14:04:32,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 14:04:32,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 14:04:32,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 14:04:32,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 14:04:32,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 14:04:32,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 14:04:32,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (1/1) ... [2023-08-25 14:04:32,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:04:32,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 14:04:32,985 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 14:04:33,008 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 14:04:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 14:04:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 14:04:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 14:04:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 14:04:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 14:04:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 14:04:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 14:04:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 14:04:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 14:04:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 14:04:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 14:04:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 14:04:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 14:04:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 14:04:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 14:04:33,027 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 14:04:33,161 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 14:04:33,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 14:04:33,487 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 14:04:33,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 14:04:33,619 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 14:04:33,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:04:33 BoogieIcfgContainer [2023-08-25 14:04:33,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 14:04:33,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 14:04:33,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 14:04:33,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 14:04:33,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:04:32" (1/3) ... [2023-08-25 14:04:33,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4249e60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:04:33, skipping insertion in model container [2023-08-25 14:04:33,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:04:32" (2/3) ... [2023-08-25 14:04:33,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4249e60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:04:33, skipping insertion in model container [2023-08-25 14:04:33,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:04:33" (3/3) ... [2023-08-25 14:04:33,629 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2023-08-25 14:04:33,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 14:04:33,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-25 14:04:33,644 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 14:04:33,696 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 14:04:33,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 14:04:33,784 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 14:04:33,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:04:33,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 14:04:33,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 14:04:33,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-25 14:04:33,796 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 14:04:33,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 14:04:33,809 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 14:04:33,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-25 14:04:33,843 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 14:04:33,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:04:33,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 14:04:33,847 INFO L119 LiptonReduction]: Number of co-enabled transitions 4170 [2023-08-25 14:04:38,181 INFO L134 LiptonReduction]: Checked pairs total: 13330 [2023-08-25 14:04:38,182 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-08-25 14:04:38,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 14:04:38,198 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;@42fd1997, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 14:04:38,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2023-08-25 14:04:38,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 14:04:38,200 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 14:04:38,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:04:38,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:38,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 14:04:38,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:38,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash 613361, now seen corresponding path program 1 times [2023-08-25 14:04:38,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:38,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584186711] [2023-08-25 14:04:38,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:38,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:38,328 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 14:04:38,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:38,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584186711] [2023-08-25 14:04:38,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584186711] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:38,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:38,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:04:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444616660] [2023-08-25 14:04:38,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:38,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 14:04:38,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:38,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 14:04:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 14:04:38,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 221 [2023-08-25 14:04:38,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:38,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 221 [2023-08-25 14:04:38,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:38,481 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 14:04:38,481 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 14:04:38,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3189 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 14:04:38,487 INFO L140 encePairwiseOnDemand]: 197/221 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 14:04:38,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 14:04:38,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 14:04:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 14:04:38,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-25 14:04:38,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4434389140271493 [2023-08-25 14:04:38,498 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-25 14:04:38,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-25 14:04:38,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:38,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-25 14:04:38,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,506 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,508 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 93 flow. Second operand 2 states and 196 transitions. [2023-08-25 14:04:38,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 14:04:38,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 14:04:38,511 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 14:04:38,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 14:04:38,515 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -26 predicate places. [2023-08-25 14:04:38,515 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 14:04:38,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:38,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:38,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 14:04:38,516 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:38,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash -273230615, now seen corresponding path program 1 times [2023-08-25 14:04:38,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:38,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505167061] [2023-08-25 14:04:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:38,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:38,714 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 14:04:38,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:38,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505167061] [2023-08-25 14:04:38,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505167061] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:38,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:38,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:04:38,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656356455] [2023-08-25 14:04:38,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:38,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:04:38,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:04:38,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:04:38,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 14:04:38,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:38,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 14:04:38,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:38,784 INFO L124 PetriNetUnfolderBase]: 379/596 cut-off events. [2023-08-25 14:04:38,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:04:38,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 596 events. 379/596 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2073 event pairs, 123 based on Foata normal form. 16/612 useless extension candidates. Maximal degree in co-relation 1234. Up to 473 conditions per place. [2023-08-25 14:04:38,788 INFO L140 encePairwiseOnDemand]: 217/221 looper letters, 24 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-25 14:04:38,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 116 flow [2023-08-25 14:04:38,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:04:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:04:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 14:04:38,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3861236802413273 [2023-08-25 14:04:38,791 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 14:04:38,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 14:04:38,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:38,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 14:04:38,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,795 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 256 transitions. [2023-08-25 14:04:38,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 116 flow [2023-08-25 14:04:38,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 14:04:38,796 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-25 14:04:38,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-08-25 14:04:38,797 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-08-25 14:04:38,797 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-25 14:04:38,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:38,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:38,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 14:04:38,798 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:38,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:38,799 INFO L85 PathProgramCache]: Analyzing trace with hash -538546177, now seen corresponding path program 1 times [2023-08-25 14:04:38,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:38,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457341115] [2023-08-25 14:04:38,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:38,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:38,849 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 14:04:38,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:38,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457341115] [2023-08-25 14:04:38,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457341115] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:38,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:38,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:04:38,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159873000] [2023-08-25 14:04:38,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:38,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:04:38,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:04:38,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:04:38,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 14:04:38,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:38,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 14:04:38,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:38,933 INFO L124 PetriNetUnfolderBase]: 395/644 cut-off events. [2023-08-25 14:04:38,934 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-25 14:04:38,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 644 events. 395/644 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2454 event pairs, 211 based on Foata normal form. 32/676 useless extension candidates. Maximal degree in co-relation 1483. Up to 389 conditions per place. [2023-08-25 14:04:38,937 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-25 14:04:38,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 135 flow [2023-08-25 14:04:38,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:04:38,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:04:38,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 14:04:38,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3861236802413273 [2023-08-25 14:04:38,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 14:04:38,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 14:04:38,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:38,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 14:04:38,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,942 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,943 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 256 transitions. [2023-08-25 14:04:38,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 135 flow [2023-08-25 14:04:38,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 14:04:38,945 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 67 flow [2023-08-25 14:04:38,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-08-25 14:04:38,945 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -22 predicate places. [2023-08-25 14:04:38,946 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 67 flow [2023-08-25 14:04:38,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:38,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:38,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:38,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 14:04:38,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:38,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:38,947 INFO L85 PathProgramCache]: Analyzing trace with hash -583500455, now seen corresponding path program 1 times [2023-08-25 14:04:38,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:38,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760511916] [2023-08-25 14:04:38,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:38,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:39,026 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 14:04:39,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:39,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760511916] [2023-08-25 14:04:39,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760511916] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:39,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:39,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:04:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873069413] [2023-08-25 14:04:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:39,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:04:39,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:39,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:04:39,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:04:39,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 221 [2023-08-25 14:04:39,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:39,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 221 [2023-08-25 14:04:39,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:39,131 INFO L124 PetriNetUnfolderBase]: 415/680 cut-off events. [2023-08-25 14:04:39,132 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2023-08-25 14:04:39,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 680 events. 415/680 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2666 event pairs, 107 based on Foata normal form. 32/712 useless extension candidates. Maximal degree in co-relation 1627. Up to 380 conditions per place. [2023-08-25 14:04:39,135 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 25 selfloop transitions, 3 changer transitions 6/34 dead transitions. [2023-08-25 14:04:39,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 172 flow [2023-08-25 14:04:39,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:04:39,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:04:39,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-08-25 14:04:39,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37895927601809953 [2023-08-25 14:04:39,137 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-08-25 14:04:39,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-08-25 14:04:39,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:39,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-08-25 14:04:39,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,141 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,141 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 67 flow. Second operand 4 states and 335 transitions. [2023-08-25 14:04:39,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 172 flow [2023-08-25 14:04:39,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 164 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 14:04:39,144 INFO L231 Difference]: Finished difference. Result has 33 places, 17 transitions, 62 flow [2023-08-25 14:04:39,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=33, PETRI_TRANSITIONS=17} [2023-08-25 14:04:39,145 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -19 predicate places. [2023-08-25 14:04:39,145 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 17 transitions, 62 flow [2023-08-25 14:04:39,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:39,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:39,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 14:04:39,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:39,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:39,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2146839953, now seen corresponding path program 1 times [2023-08-25 14:04:39,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:39,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815885357] [2023-08-25 14:04:39,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:39,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:39,202 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 14:04:39,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:39,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815885357] [2023-08-25 14:04:39,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815885357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:39,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:39,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:04:39,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533578328] [2023-08-25 14:04:39,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:39,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:04:39,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:39,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:04:39,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:04:39,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 14:04:39,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 17 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:39,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 14:04:39,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:39,253 INFO L124 PetriNetUnfolderBase]: 191/324 cut-off events. [2023-08-25 14:04:39,253 INFO L125 PetriNetUnfolderBase]: For 269/269 co-relation queries the response was YES. [2023-08-25 14:04:39,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 324 events. 191/324 cut-off events. For 269/269 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1143 event pairs, 29 based on Foata normal form. 4/328 useless extension candidates. Maximal degree in co-relation 824. Up to 273 conditions per place. [2023-08-25 14:04:39,255 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 26 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-25 14:04:39,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 156 flow [2023-08-25 14:04:39,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:04:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:04:39,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 14:04:39,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38763197586727 [2023-08-25 14:04:39,257 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 14:04:39,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 14:04:39,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:39,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 14:04:39,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,260 INFO L175 Difference]: Start difference. First operand has 33 places, 17 transitions, 62 flow. Second operand 3 states and 257 transitions. [2023-08-25 14:04:39,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 156 flow [2023-08-25 14:04:39,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 137 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-25 14:04:39,261 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 58 flow [2023-08-25 14:04:39,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2023-08-25 14:04:39,262 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-25 14:04:39,262 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 58 flow [2023-08-25 14:04:39,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:39,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:39,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 14:04:39,263 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:39,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1240355078, now seen corresponding path program 1 times [2023-08-25 14:04:39,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:39,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734675262] [2023-08-25 14:04:39,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:39,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:39,361 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 14:04:39,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:39,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734675262] [2023-08-25 14:04:39,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734675262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:39,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:39,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:04:39,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756204261] [2023-08-25 14:04:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:39,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:04:39,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:39,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:04:39,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:04:39,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 14:04:39,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:39,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 14:04:39,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:39,409 INFO L124 PetriNetUnfolderBase]: 146/262 cut-off events. [2023-08-25 14:04:39,409 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2023-08-25 14:04:39,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 262 events. 146/262 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 824 event pairs, 52 based on Foata normal form. 15/277 useless extension candidates. Maximal degree in co-relation 686. Up to 187 conditions per place. [2023-08-25 14:04:39,411 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 26 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-08-25 14:04:39,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 156 flow [2023-08-25 14:04:39,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:04:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:04:39,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-25 14:04:39,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39064856711915535 [2023-08-25 14:04:39,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-25 14:04:39,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-25 14:04:39,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:39,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-25 14:04:39,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,415 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 58 flow. Second operand 3 states and 259 transitions. [2023-08-25 14:04:39,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 156 flow [2023-08-25 14:04:39,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 14:04:39,417 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 80 flow [2023-08-25 14:04:39,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-08-25 14:04:39,418 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -20 predicate places. [2023-08-25 14:04:39,418 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 80 flow [2023-08-25 14:04:39,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:39,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:39,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 14:04:39,419 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:39,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1146349160, now seen corresponding path program 1 times [2023-08-25 14:04:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844499078] [2023-08-25 14:04:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:39,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:39,465 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 14:04:39,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:39,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844499078] [2023-08-25 14:04:39,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844499078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:39,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:39,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:04:39,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138007755] [2023-08-25 14:04:39,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:39,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:04:39,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:39,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:04:39,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:04:39,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 221 [2023-08-25 14:04:39,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:39,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 221 [2023-08-25 14:04:39,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:39,528 INFO L124 PetriNetUnfolderBase]: 210/380 cut-off events. [2023-08-25 14:04:39,528 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2023-08-25 14:04:39,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 380 events. 210/380 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1390 event pairs, 58 based on Foata normal form. 10/390 useless extension candidates. Maximal degree in co-relation 1141. Up to 175 conditions per place. [2023-08-25 14:04:39,530 INFO L140 encePairwiseOnDemand]: 217/221 looper letters, 28 selfloop transitions, 3 changer transitions 7/38 dead transitions. [2023-08-25 14:04:39,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 221 flow [2023-08-25 14:04:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:04:39,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:04:39,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-25 14:04:39,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3766968325791855 [2023-08-25 14:04:39,532 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-25 14:04:39,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-25 14:04:39,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:39,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-25 14:04:39,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,535 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,535 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 80 flow. Second operand 4 states and 333 transitions. [2023-08-25 14:04:39,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 221 flow [2023-08-25 14:04:39,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 213 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 14:04:39,536 INFO L231 Difference]: Finished difference. Result has 35 places, 20 transitions, 86 flow [2023-08-25 14:04:39,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=35, PETRI_TRANSITIONS=20} [2023-08-25 14:04:39,537 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2023-08-25 14:04:39,537 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 86 flow [2023-08-25 14:04:39,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:39,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:39,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 14:04:39,538 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:39,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1338998718, now seen corresponding path program 2 times [2023-08-25 14:04:39,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:39,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104780439] [2023-08-25 14:04:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:39,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:39,622 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 14:04:39,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:39,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104780439] [2023-08-25 14:04:39,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104780439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:39,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:39,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:04:39,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941642983] [2023-08-25 14:04:39,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:39,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:04:39,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:39,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:04:39,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:04:39,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 14:04:39,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:39,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 14:04:39,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:39,676 INFO L124 PetriNetUnfolderBase]: 68/138 cut-off events. [2023-08-25 14:04:39,676 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2023-08-25 14:04:39,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 138 events. 68/138 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 377 event pairs, 14 based on Foata normal form. 15/153 useless extension candidates. Maximal degree in co-relation 437. Up to 59 conditions per place. [2023-08-25 14:04:39,677 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 28 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2023-08-25 14:04:39,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 208 flow [2023-08-25 14:04:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:04:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:04:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-25 14:04:39,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38461538461538464 [2023-08-25 14:04:39,679 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-25 14:04:39,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-25 14:04:39,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:39,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-25 14:04:39,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,682 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,682 INFO L175 Difference]: Start difference. First operand has 35 places, 20 transitions, 86 flow. Second operand 4 states and 340 transitions. [2023-08-25 14:04:39,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 208 flow [2023-08-25 14:04:39,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 188 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-25 14:04:39,683 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 112 flow [2023-08-25 14:04:39,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-25 14:04:39,684 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2023-08-25 14:04:39,684 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 112 flow [2023-08-25 14:04:39,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:39,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:39,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 14:04:39,685 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:39,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:39,685 INFO L85 PathProgramCache]: Analyzing trace with hash -293427122, now seen corresponding path program 1 times [2023-08-25 14:04:39,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:39,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138595792] [2023-08-25 14:04:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:39,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:39,725 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 14:04:39,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138595792] [2023-08-25 14:04:39,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138595792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:39,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:39,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:04:39,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529240015] [2023-08-25 14:04:39,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:39,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:04:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:04:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:04:39,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 221 [2023-08-25 14:04:39,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:39,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 221 [2023-08-25 14:04:39,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:39,791 INFO L124 PetriNetUnfolderBase]: 80/167 cut-off events. [2023-08-25 14:04:39,791 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2023-08-25 14:04:39,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 167 events. 80/167 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 503 event pairs, 12 based on Foata normal form. 5/172 useless extension candidates. Maximal degree in co-relation 587. Up to 83 conditions per place. [2023-08-25 14:04:39,792 INFO L140 encePairwiseOnDemand]: 217/221 looper letters, 24 selfloop transitions, 2 changer transitions 22/48 dead transitions. [2023-08-25 14:04:39,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 340 flow [2023-08-25 14:04:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 14:04:39,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 14:04:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 410 transitions. [2023-08-25 14:04:39,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37104072398190047 [2023-08-25 14:04:39,794 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 410 transitions. [2023-08-25 14:04:39,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 410 transitions. [2023-08-25 14:04:39,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:39,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 410 transitions. [2023-08-25 14:04:39,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,797 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,797 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 112 flow. Second operand 5 states and 410 transitions. [2023-08-25 14:04:39,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 340 flow [2023-08-25 14:04:39,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 305 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-25 14:04:39,799 INFO L231 Difference]: Finished difference. Result has 38 places, 23 transitions, 108 flow [2023-08-25 14:04:39,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2023-08-25 14:04:39,800 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -14 predicate places. [2023-08-25 14:04:39,800 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 108 flow [2023-08-25 14:04:39,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:39,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:39,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 14:04:39,801 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:39,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:39,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1339118504, now seen corresponding path program 2 times [2023-08-25 14:04:39,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:39,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296016684] [2023-08-25 14:04:39,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:39,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:39,928 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 14:04:39,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:39,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296016684] [2023-08-25 14:04:39,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296016684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:39,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:39,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 14:04:39,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076385147] [2023-08-25 14:04:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:39,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 14:04:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 14:04:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 14:04:39,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 14:04:39,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:39,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 14:04:39,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:39,970 INFO L124 PetriNetUnfolderBase]: 21/56 cut-off events. [2023-08-25 14:04:39,971 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2023-08-25 14:04:39,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 56 events. 21/56 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 4 based on Foata normal form. 5/61 useless extension candidates. Maximal degree in co-relation 190. Up to 20 conditions per place. [2023-08-25 14:04:39,971 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 21 selfloop transitions, 10 changer transitions 0/31 dead transitions. [2023-08-25 14:04:39,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 31 transitions, 199 flow [2023-08-25 14:04:39,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 14:04:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 14:04:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 412 transitions. [2023-08-25 14:04:39,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3728506787330317 [2023-08-25 14:04:39,973 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 412 transitions. [2023-08-25 14:04:39,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 412 transitions. [2023-08-25 14:04:39,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:39,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 412 transitions. [2023-08-25 14:04:39,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,976 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,977 INFO L175 Difference]: Start difference. First operand has 38 places, 23 transitions, 108 flow. Second operand 5 states and 412 transitions. [2023-08-25 14:04:39,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 31 transitions, 199 flow [2023-08-25 14:04:39,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 180 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-25 14:04:39,978 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 122 flow [2023-08-25 14:04:39,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-25 14:04:39,980 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -16 predicate places. [2023-08-25 14:04:39,980 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 122 flow [2023-08-25 14:04:39,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:39,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:04:39,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:39,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 14:04:39,981 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:04:39,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:04:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1767492669, now seen corresponding path program 1 times [2023-08-25 14:04:39,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:04:39,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820469630] [2023-08-25 14:04:39,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:04:39,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:04:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:04:40,033 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 14:04:40,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:04:40,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820469630] [2023-08-25 14:04:40,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820469630] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:04:40,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:04:40,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:04:40,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625137059] [2023-08-25 14:04:40,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:04:40,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:04:40,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:04:40,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:04:40,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:04:40,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 221 [2023-08-25 14:04:40,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:40,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:04:40,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 221 [2023-08-25 14:04:40,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:04:40,073 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-25 14:04:40,074 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-08-25 14:04:40,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 55 events. 21/55 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 5 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 203. Up to 32 conditions per place. [2023-08-25 14:04:40,074 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-25 14:04:40,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 212 flow [2023-08-25 14:04:40,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:04:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:04:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2023-08-25 14:04:40,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36312217194570134 [2023-08-25 14:04:40,076 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2023-08-25 14:04:40,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2023-08-25 14:04:40,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:04:40,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2023-08-25 14:04:40,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:40,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:40,079 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:40,079 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 122 flow. Second operand 4 states and 321 transitions. [2023-08-25 14:04:40,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 212 flow [2023-08-25 14:04:40,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 180 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-25 14:04:40,081 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-25 14:04:40,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-25 14:04:40,082 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2023-08-25 14:04:40,082 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-25 14:04:40,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:04:40,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2023-08-25 14:04:40,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2023-08-25 14:04:40,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2023-08-25 14:04:40,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2023-08-25 14:04:40,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2023-08-25 14:04:40,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2023-08-25 14:04:40,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2023-08-25 14:04:40,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2023-08-25 14:04:40,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2023-08-25 14:04:40,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2023-08-25 14:04:40,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2023-08-25 14:04:40,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2023-08-25 14:04:40,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2023-08-25 14:04:40,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2023-08-25 14:04:40,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2023-08-25 14:04:40,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2023-08-25 14:04:40,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (18 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2023-08-25 14:04:40,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2023-08-25 14:04:40,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2023-08-25 14:04:40,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2023-08-25 14:04:40,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2023-08-25 14:04:40,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2023-08-25 14:04:40,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2023-08-25 14:04:40,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2023-08-25 14:04:40,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2023-08-25 14:04:40,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2023-08-25 14:04:40,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2023-08-25 14:04:40,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2023-08-25 14:04:40,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2023-08-25 14:04:40,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 14:04:40,092 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:04:40,097 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 14:04:40,098 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 14:04:40,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:04:40 BasicIcfg [2023-08-25 14:04:40,101 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 14:04:40,101 INFO L158 Benchmark]: Toolchain (without parser) took 7621.33ms. Allocated memory was 352.3MB in the beginning and 467.7MB in the end (delta: 115.3MB). Free memory was 327.3MB in the beginning and 194.0MB in the end (delta: 133.3MB). Peak memory consumption was 249.2MB. Max. memory is 16.0GB. [2023-08-25 14:04:40,102 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 352.3MB. Free memory is still 328.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 14:04:40,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.38ms. Allocated memory is still 352.3MB. Free memory was 327.0MB in the beginning and 306.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 14:04:40,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.12ms. Allocated memory is still 352.3MB. Free memory was 306.5MB in the beginning and 304.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 14:04:40,102 INFO L158 Benchmark]: Boogie Preprocessor took 23.35ms. Allocated memory is still 352.3MB. Free memory was 304.2MB in the beginning and 302.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 14:04:40,103 INFO L158 Benchmark]: RCFGBuilder took 679.74ms. Allocated memory is still 352.3MB. Free memory was 302.5MB in the beginning and 321.9MB in the end (delta: -19.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.0GB. [2023-08-25 14:04:40,103 INFO L158 Benchmark]: TraceAbstraction took 6477.82ms. Allocated memory was 352.3MB in the beginning and 467.7MB in the end (delta: 115.3MB). Free memory was 321.1MB in the beginning and 194.0MB in the end (delta: 127.0MB). Peak memory consumption was 241.1MB. Max. memory is 16.0GB. [2023-08-25 14:04:40,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 352.3MB. Free memory is still 328.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 399.38ms. Allocated memory is still 352.3MB. Free memory was 327.0MB in the beginning and 306.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.12ms. Allocated memory is still 352.3MB. Free memory was 306.5MB in the beginning and 304.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.35ms. Allocated memory is still 352.3MB. Free memory was 304.2MB in the beginning and 302.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 679.74ms. Allocated memory is still 352.3MB. Free memory was 302.5MB in the beginning and 321.9MB in the end (delta: -19.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.0GB. * TraceAbstraction took 6477.82ms. Allocated memory was 352.3MB in the beginning and 467.7MB in the end (delta: 115.3MB). Free memory was 321.1MB in the beginning and 194.0MB in the end (delta: 127.0MB). Peak memory consumption was 241.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 121 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4170 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 13330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5795, independent: 5545, independent conditional: 0, independent unconditional: 5545, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2314, independent: 2249, independent conditional: 0, independent unconditional: 2249, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5795, independent: 3296, independent conditional: 0, independent unconditional: 3296, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 2314, unknown conditional: 0, unknown unconditional: 2314] , Statistics on independence cache: Total cache size (in pairs): 289, Positive cache size: 264, Positive conditional cache size: 0, Positive unconditional cache size: 264, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 43 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: 6.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 413 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 413 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=10, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 14:04:40,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...