/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 09:14:46,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 09:14:46,662 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 09:14:46,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 09:14:46,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 09:14:46,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 09:14:46,688 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 09:14:46,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 09:14:46,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 09:14:46,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 09:14:46,689 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 09:14:46,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 09:14:46,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 09:14:46,690 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 09:14:46,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 09:14:46,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 09:14:46,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 09:14:46,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 09:14:46,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 09:14:46,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 09:14:46,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 09:14:46,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 09:14:46,693 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 09:14:46,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 09:14:46,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 09:14:46,695 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 09:14:46,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 09:14:46,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:14:46,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 09:14:46,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 09:14:46,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 09:14:46,697 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 09:14:46,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 09:14:46,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 09:14:46,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 09:14:46,698 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 09:14:47,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 09:14:47,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 09:14:47,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 09:14:47,068 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 09:14:47,068 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 09:14:47,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2023-08-26 09:14:48,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 09:14:48,590 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 09:14:48,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2023-08-26 09:14:48,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ffec4e2b/50a21e224f3a4c3ab006a648139de5b3/FLAG4e4d58a65 [2023-08-26 09:14:48,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ffec4e2b/50a21e224f3a4c3ab006a648139de5b3 [2023-08-26 09:14:48,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 09:14:48,613 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 09:14:48,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 09:14:48,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 09:14:48,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 09:14:48,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:48,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48, skipping insertion in model container [2023-08-26 09:14:48,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:48,638 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 09:14:48,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:14:48,818 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 09:14:48,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:14:48,897 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:14:48,898 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:14:48,904 INFO L206 MainTranslator]: Completed translation [2023-08-26 09:14:48,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48 WrapperNode [2023-08-26 09:14:48,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 09:14:48,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 09:14:48,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 09:14:48,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 09:14:48,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:48,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:48,972 INFO L138 Inliner]: procedures = 25, calls = 54, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 223 [2023-08-26 09:14:48,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 09:14:48,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 09:14:48,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 09:14:48,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 09:14:48,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:48,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 09:14:49,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 09:14:49,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 09:14:49,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 09:14:49,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (1/1) ... [2023-08-26 09:14:49,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:14:49,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:14:49,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 09:14:49,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 09:14:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 09:14:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 09:14:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 09:14:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 09:14:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 09:14:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 09:14:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 09:14:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 09:14:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 09:14:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 09:14:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 09:14:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 09:14:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 09:14:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 09:14:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 09:14:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 09:14:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 09:14:49,120 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 09:14:49,246 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 09:14:49,248 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 09:14:49,809 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 09:14:50,059 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 09:14:50,060 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-26 09:14:50,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:14:50 BoogieIcfgContainer [2023-08-26 09:14:50,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 09:14:50,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 09:14:50,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 09:14:50,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 09:14:50,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:14:48" (1/3) ... [2023-08-26 09:14:50,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46eac2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:14:50, skipping insertion in model container [2023-08-26 09:14:50,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:14:48" (2/3) ... [2023-08-26 09:14:50,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46eac2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:14:50, skipping insertion in model container [2023-08-26 09:14:50,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:14:50" (3/3) ... [2023-08-26 09:14:50,073 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2023-08-26 09:14:50,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 09:14:50,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2023-08-26 09:14:50,088 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 09:14:50,194 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 09:14:50,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 319 places, 324 transitions, 672 flow [2023-08-26 09:14:50,379 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2023-08-26 09:14:50,379 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 09:14:50,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 321 events. 15/321 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 482 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 265. Up to 2 conditions per place. [2023-08-26 09:14:50,388 INFO L82 GeneralOperation]: Start removeDead. Operand has 319 places, 324 transitions, 672 flow [2023-08-26 09:14:50,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 310 transitions, 638 flow [2023-08-26 09:14:50,406 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 09:14:50,418 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 310 transitions, 638 flow [2023-08-26 09:14:50,425 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 310 transitions, 638 flow [2023-08-26 09:14:50,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 310 transitions, 638 flow [2023-08-26 09:14:50,485 INFO L124 PetriNetUnfolderBase]: 15/310 cut-off events. [2023-08-26 09:14:50,486 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 09:14:50,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 15/310 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 477 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 265. Up to 2 conditions per place. [2023-08-26 09:14:50,492 INFO L119 LiptonReduction]: Number of co-enabled transitions 5184 [2023-08-26 09:15:02,855 INFO L134 LiptonReduction]: Checked pairs total: 34871 [2023-08-26 09:15:02,855 INFO L136 LiptonReduction]: Total number of compositions: 339 [2023-08-26 09:15:02,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 09:15:02,873 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;@23af7fa0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 09:15:02,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-08-26 09:15:02,875 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 09:15:02,875 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 09:15:02,875 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 09:15:02,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:02,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 09:15:02,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:02,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:02,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1431, now seen corresponding path program 1 times [2023-08-26 09:15:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:02,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158577366] [2023-08-26 09:15:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:02,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:02,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:02,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:02,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158577366] [2023-08-26 09:15:02,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158577366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:02,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:02,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 09:15:02,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342067862] [2023-08-26 09:15:02,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:02,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 09:15:02,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:03,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 09:15:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 09:15:03,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 663 [2023-08-26 09:15:03,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 200 flow. Second operand has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:03,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 663 [2023-08-26 09:15:03,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:03,201 INFO L124 PetriNetUnfolderBase]: 278/621 cut-off events. [2023-08-26 09:15:03,202 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-08-26 09:15:03,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 621 events. 278/621 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3119 event pairs, 217 based on Foata normal form. 60/581 useless extension candidates. Maximal degree in co-relation 959. Up to 433 conditions per place. [2023-08-26 09:15:03,209 INFO L140 encePairwiseOnDemand]: 612/663 looper letters, 25 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-08-26 09:15:03,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 148 flow [2023-08-26 09:15:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 09:15:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 09:15:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 626 transitions. [2023-08-26 09:15:03,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4720965309200603 [2023-08-26 09:15:03,228 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 626 transitions. [2023-08-26 09:15:03,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 626 transitions. [2023-08-26 09:15:03,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:03,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 626 transitions. [2023-08-26 09:15:03,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 313.0) internal successors, (626), 2 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,245 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,247 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 200 flow. Second operand 2 states and 626 transitions. [2023-08-26 09:15:03,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 148 flow [2023-08-26 09:15:03,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 136 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 09:15:03,254 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 86 flow [2023-08-26 09:15:03,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=42, PETRI_TRANSITIONS=40} [2023-08-26 09:15:03,259 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -54 predicate places. [2023-08-26 09:15:03,259 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 86 flow [2023-08-26 09:15:03,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:03,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:03,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 09:15:03,261 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:03,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1617545375, now seen corresponding path program 1 times [2023-08-26 09:15:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:03,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661359612] [2023-08-26 09:15:03,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:03,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:03,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:03,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661359612] [2023-08-26 09:15:03,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661359612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:03,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:03,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:15:03,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352894669] [2023-08-26 09:15:03,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:03,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:15:03,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:03,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:15:03,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:15:03,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 663 [2023-08-26 09:15:03,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:03,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 663 [2023-08-26 09:15:03,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:03,598 INFO L124 PetriNetUnfolderBase]: 484/894 cut-off events. [2023-08-26 09:15:03,599 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-26 09:15:03,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 894 events. 484/894 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3828 event pairs, 405 based on Foata normal form. 0/776 useless extension candidates. Maximal degree in co-relation 1681. Up to 744 conditions per place. [2023-08-26 09:15:03,604 INFO L140 encePairwiseOnDemand]: 660/663 looper letters, 27 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-26 09:15:03,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 138 flow [2023-08-26 09:15:03,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:15:03,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:15:03,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 810 transitions. [2023-08-26 09:15:03,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4072398190045249 [2023-08-26 09:15:03,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 810 transitions. [2023-08-26 09:15:03,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 810 transitions. [2023-08-26 09:15:03,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:03,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 810 transitions. [2023-08-26 09:15:03,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,616 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 86 flow. Second operand 3 states and 810 transitions. [2023-08-26 09:15:03,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 138 flow [2023-08-26 09:15:03,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:15:03,618 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 84 flow [2023-08-26 09:15:03,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-08-26 09:15:03,620 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -54 predicate places. [2023-08-26 09:15:03,620 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 84 flow [2023-08-26 09:15:03,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:03,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:03,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 09:15:03,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:03,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2086084557, now seen corresponding path program 1 times [2023-08-26 09:15:03,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:03,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639404471] [2023-08-26 09:15:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:03,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:15:03,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639404471] [2023-08-26 09:15:03,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639404471] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:03,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:03,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:15:03,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158987833] [2023-08-26 09:15:03,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:03,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:15:03,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:03,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:15:03,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:15:03,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 663 [2023-08-26 09:15:03,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:03,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 663 [2023-08-26 09:15:03,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:03,922 INFO L124 PetriNetUnfolderBase]: 278/605 cut-off events. [2023-08-26 09:15:03,922 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-26 09:15:03,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 605 events. 278/605 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2910 event pairs, 217 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 1065. Up to 433 conditions per place. [2023-08-26 09:15:03,925 INFO L140 encePairwiseOnDemand]: 660/663 looper letters, 24 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2023-08-26 09:15:03,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 39 transitions, 138 flow [2023-08-26 09:15:03,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:15:03,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:15:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2023-08-26 09:15:03,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40120663650075417 [2023-08-26 09:15:03,928 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 798 transitions. [2023-08-26 09:15:03,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 798 transitions. [2023-08-26 09:15:03,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:03,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 798 transitions. [2023-08-26 09:15:03,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,935 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,935 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 84 flow. Second operand 3 states and 798 transitions. [2023-08-26 09:15:03,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 39 transitions, 138 flow [2023-08-26 09:15:03,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:15:03,937 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 95 flow [2023-08-26 09:15:03,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2023-08-26 09:15:03,938 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -52 predicate places. [2023-08-26 09:15:03,938 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 95 flow [2023-08-26 09:15:03,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:03,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:03,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:03,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 09:15:03,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:03,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:03,939 INFO L85 PathProgramCache]: Analyzing trace with hash -2124707566, now seen corresponding path program 1 times [2023-08-26 09:15:03,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:03,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166828078] [2023-08-26 09:15:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:03,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:04,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:04,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:04,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166828078] [2023-08-26 09:15:04,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166828078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:04,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:04,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:15:04,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141022116] [2023-08-26 09:15:04,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:04,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:15:04,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:04,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:15:04,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:15:04,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 663 [2023-08-26 09:15:04,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:04,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:04,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 663 [2023-08-26 09:15:04,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:04,704 INFO L124 PetriNetUnfolderBase]: 738/1125 cut-off events. [2023-08-26 09:15:04,705 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 09:15:04,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 1125 events. 738/1125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4470 event pairs, 113 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 2250. Up to 428 conditions per place. [2023-08-26 09:15:04,711 INFO L140 encePairwiseOnDemand]: 658/663 looper letters, 71 selfloop transitions, 4 changer transitions 0/78 dead transitions. [2023-08-26 09:15:04,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 323 flow [2023-08-26 09:15:04,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:15:04,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:15:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1509 transitions. [2023-08-26 09:15:04,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3793363499245852 [2023-08-26 09:15:04,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1509 transitions. [2023-08-26 09:15:04,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1509 transitions. [2023-08-26 09:15:04,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:04,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1509 transitions. [2023-08-26 09:15:04,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.5) internal successors, (1509), 6 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:04,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:04,727 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:04,727 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 95 flow. Second operand 6 states and 1509 transitions. [2023-08-26 09:15:04,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 323 flow [2023-08-26 09:15:04,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 319 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 09:15:04,729 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 97 flow [2023-08-26 09:15:04,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2023-08-26 09:15:04,730 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -49 predicate places. [2023-08-26 09:15:04,730 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 97 flow [2023-08-26 09:15:04,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:04,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:04,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:04,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 09:15:04,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:04,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash -942906843, now seen corresponding path program 1 times [2023-08-26 09:15:04,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:04,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382566554] [2023-08-26 09:15:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:04,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:04,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382566554] [2023-08-26 09:15:04,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382566554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:04,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:04,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:04,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704965024] [2023-08-26 09:15:04,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:04,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:15:04,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:04,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:15:04,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:15:04,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 663 [2023-08-26 09:15:04,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 266.5) internal successors, (1066), 4 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:04,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:04,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 663 [2023-08-26 09:15:04,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:04,986 INFO L124 PetriNetUnfolderBase]: 378/763 cut-off events. [2023-08-26 09:15:04,986 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-26 09:15:04,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 763 events. 378/763 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3649 event pairs, 217 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 1504. Up to 433 conditions per place. [2023-08-26 09:15:04,990 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 35 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2023-08-26 09:15:04,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 50 transitions, 201 flow [2023-08-26 09:15:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 09:15:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 09:15:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1090 transitions. [2023-08-26 09:15:04,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4110105580693816 [2023-08-26 09:15:04,994 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1090 transitions. [2023-08-26 09:15:04,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1090 transitions. [2023-08-26 09:15:04,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:04,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1090 transitions. [2023-08-26 09:15:04,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 272.5) internal successors, (1090), 4 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,002 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,002 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 97 flow. Second operand 4 states and 1090 transitions. [2023-08-26 09:15:05,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 50 transitions, 201 flow [2023-08-26 09:15:05,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:15:05,004 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 104 flow [2023-08-26 09:15:05,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-26 09:15:05,005 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -49 predicate places. [2023-08-26 09:15:05,005 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 104 flow [2023-08-26 09:15:05,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 266.5) internal successors, (1066), 4 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:05,006 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:05,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 09:15:05,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:05,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:05,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1597853710, now seen corresponding path program 1 times [2023-08-26 09:15:05,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:05,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761895334] [2023-08-26 09:15:05,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:05,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:05,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:05,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761895334] [2023-08-26 09:15:05,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761895334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:05,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:05,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:15:05,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519592591] [2023-08-26 09:15:05,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:05,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:15:05,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:05,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:15:05,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:15:05,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 663 [2023-08-26 09:15:05,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:05,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 663 [2023-08-26 09:15:05,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:05,674 INFO L124 PetriNetUnfolderBase]: 986/1489 cut-off events. [2023-08-26 09:15:05,674 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2023-08-26 09:15:05,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3331 conditions, 1489 events. 986/1489 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6172 event pairs, 765 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 3325. Up to 1342 conditions per place. [2023-08-26 09:15:05,682 INFO L140 encePairwiseOnDemand]: 658/663 looper letters, 51 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2023-08-26 09:15:05,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 252 flow [2023-08-26 09:15:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:15:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:15:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1488 transitions. [2023-08-26 09:15:05,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3740573152337858 [2023-08-26 09:15:05,687 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1488 transitions. [2023-08-26 09:15:05,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1488 transitions. [2023-08-26 09:15:05,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:05,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1488 transitions. [2023-08-26 09:15:05,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,695 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 104 flow. Second operand 6 states and 1488 transitions. [2023-08-26 09:15:05,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 252 flow [2023-08-26 09:15:05,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 09:15:05,697 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 106 flow [2023-08-26 09:15:05,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-08-26 09:15:05,698 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -47 predicate places. [2023-08-26 09:15:05,698 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 106 flow [2023-08-26 09:15:05,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:05,699 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:05,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 09:15:05,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:05,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:05,700 INFO L85 PathProgramCache]: Analyzing trace with hash -770450878, now seen corresponding path program 1 times [2023-08-26 09:15:05,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:05,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383121282] [2023-08-26 09:15:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:05,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:05,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:05,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:05,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383121282] [2023-08-26 09:15:05,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383121282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:05,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:05,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:05,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614513075] [2023-08-26 09:15:05,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:05,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:15:05,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:05,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:15:05,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:15:05,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 663 [2023-08-26 09:15:05,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:05,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:05,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 663 [2023-08-26 09:15:05,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:06,003 INFO L124 PetriNetUnfolderBase]: 468/997 cut-off events. [2023-08-26 09:15:06,004 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2023-08-26 09:15:06,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1961 conditions, 997 events. 468/997 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5426 event pairs, 305 based on Foata normal form. 46/1008 useless extension candidates. Maximal degree in co-relation 1955. Up to 585 conditions per place. [2023-08-26 09:15:06,010 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 37 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2023-08-26 09:15:06,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 224 flow [2023-08-26 09:15:06,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 09:15:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 09:15:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1090 transitions. [2023-08-26 09:15:06,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4110105580693816 [2023-08-26 09:15:06,014 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1090 transitions. [2023-08-26 09:15:06,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1090 transitions. [2023-08-26 09:15:06,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:06,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1090 transitions. [2023-08-26 09:15:06,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 272.5) internal successors, (1090), 4 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:06,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:06,021 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:06,021 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 106 flow. Second operand 4 states and 1090 transitions. [2023-08-26 09:15:06,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 224 flow [2023-08-26 09:15:06,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 215 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:15:06,024 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2023-08-26 09:15:06,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2023-08-26 09:15:06,024 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -47 predicate places. [2023-08-26 09:15:06,024 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 113 flow [2023-08-26 09:15:06,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:06,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:06,025 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:06,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 09:15:06,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:06,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1480940668, now seen corresponding path program 1 times [2023-08-26 09:15:06,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686219558] [2023-08-26 09:15:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:06,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:06,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686219558] [2023-08-26 09:15:06,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686219558] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:06,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264122578] [2023-08-26 09:15:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:06,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:06,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:06,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:15:06,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 09:15:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:07,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-26 09:15:07,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:15:07,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 09:15:07,201 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 09:15:07,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 09:15:07,243 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 09:15:07,307 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 70 [2023-08-26 09:15:07,344 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:07,345 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 09:15:07,353 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-08-26 09:15:07,425 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:07,425 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 60 [2023-08-26 09:15:07,437 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2023-08-26 09:15:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:07,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:15:07,680 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:07,681 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-26 09:15:07,722 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:07,723 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 09:15:08,192 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_480 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (or (forall ((thread2Thread1of1ForFork2_~i~1 Int)) (let ((.cse0 (select .cse1 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse0 (select .cse1 c_~A~0.offset)) (<= c_~min~0 .cse0)))) (forall ((thread1Thread1of1ForFork1_~i~0 Int)) (<= (select .cse1 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4))) c_~min~0))))) (forall ((v_ArrVal_480 (Array Int Int)) (thread2Thread1of1ForFork2_~i~1 Int) (thread1Thread1of1ForFork1_~i~0 Int)) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (let ((.cse3 (select .cse4 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4)))) (.cse2 (select .cse4 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4))))) (or (<= .cse2 .cse3) (< .cse3 (select .cse4 c_~A~0.offset)) (< c_~min~0 .cse2)))))) is different from false [2023-08-26 09:15:08,311 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_479 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (thread2Thread1of1ForFork2_~i~1 Int) (thread1Thread1of1ForFork1_~i~0 Int)) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_479) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (let ((.cse2 (select .cse1 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4)))) (.cse0 (select .cse1 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse0 (select .cse1 c_~A~0.offset)) (< c_~min~0 .cse2) (<= .cse2 .cse0))))) (forall ((v_ArrVal_479 (Array Int Int)) (v_ArrVal_480 (Array Int Int))) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_479) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (or (forall ((thread2Thread1of1ForFork2_~i~1 Int)) (let ((.cse3 (select .cse4 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse3 (select .cse4 c_~A~0.offset)) (<= c_~min~0 .cse3)))) (forall ((thread1Thread1of1ForFork1_~i~0 Int)) (<= (select .cse4 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4))) c_~min~0)))))) is different from false [2023-08-26 09:15:08,380 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:08,380 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 459 treesize of output 471 [2023-08-26 09:15:08,420 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:08,420 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 387 treesize of output 360 [2023-08-26 09:15:08,458 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:08,458 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 335 treesize of output 334 [2023-08-26 09:15:08,501 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:08,501 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 309 treesize of output 294 [2023-08-26 09:15:08,544 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:08,545 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 269 treesize of output 274 [2023-08-26 09:15:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-08-26 09:15:09,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264122578] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:15:09,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:15:09,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 22 [2023-08-26 09:15:09,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161335378] [2023-08-26 09:15:09,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:15:09,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-26 09:15:09,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:09,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-26 09:15:09,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=396, Unknown=2, NotChecked=82, Total=552 [2023-08-26 09:15:09,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 663 [2023-08-26 09:15:09,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 113 flow. Second operand has 24 states, 24 states have (on average 214.375) internal successors, (5145), 24 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:09,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:09,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 663 [2023-08-26 09:15:09,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:11,233 INFO L124 PetriNetUnfolderBase]: 1178/2211 cut-off events. [2023-08-26 09:15:11,234 INFO L125 PetriNetUnfolderBase]: For 1037/1037 co-relation queries the response was YES. [2023-08-26 09:15:11,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5259 conditions, 2211 events. 1178/2211 cut-off events. For 1037/1037 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 13249 event pairs, 132 based on Foata normal form. 2/2202 useless extension candidates. Maximal degree in co-relation 5252. Up to 528 conditions per place. [2023-08-26 09:15:11,245 INFO L140 encePairwiseOnDemand]: 654/663 looper letters, 77 selfloop transitions, 13 changer transitions 76/173 dead transitions. [2023-08-26 09:15:11,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 173 transitions, 863 flow [2023-08-26 09:15:11,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 09:15:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 09:15:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3533 transitions. [2023-08-26 09:15:11,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33305052790346906 [2023-08-26 09:15:11,255 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3533 transitions. [2023-08-26 09:15:11,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3533 transitions. [2023-08-26 09:15:11,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:11,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3533 transitions. [2023-08-26 09:15:11,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 220.8125) internal successors, (3533), 16 states have internal predecessors, (3533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:11,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 663.0) internal successors, (11271), 17 states have internal predecessors, (11271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:11,278 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 663.0) internal successors, (11271), 17 states have internal predecessors, (11271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:11,278 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 113 flow. Second operand 16 states and 3533 transitions. [2023-08-26 09:15:11,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 173 transitions, 863 flow [2023-08-26 09:15:11,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 173 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 09:15:11,288 INFO L231 Difference]: Finished difference. Result has 69 places, 46 transitions, 186 flow [2023-08-26 09:15:11,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=186, PETRI_PLACES=69, PETRI_TRANSITIONS=46} [2023-08-26 09:15:11,289 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -27 predicate places. [2023-08-26 09:15:11,289 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 46 transitions, 186 flow [2023-08-26 09:15:11,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 214.375) internal successors, (5145), 24 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:11,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:11,291 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:11,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 09:15:11,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:11,499 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:11,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:11,500 INFO L85 PathProgramCache]: Analyzing trace with hash 960236270, now seen corresponding path program 2 times [2023-08-26 09:15:11,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:11,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353821415] [2023-08-26 09:15:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:11,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-26 09:15:11,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:11,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353821415] [2023-08-26 09:15:11,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353821415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:11,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:11,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:15:11,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807972369] [2023-08-26 09:15:11,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:11,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:15:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:11,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:15:11,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:15:11,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 663 [2023-08-26 09:15:11,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 46 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 273.25) internal successors, (1093), 4 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:11,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:11,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 663 [2023-08-26 09:15:11,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:12,283 INFO L124 PetriNetUnfolderBase]: 828/1813 cut-off events. [2023-08-26 09:15:12,284 INFO L125 PetriNetUnfolderBase]: For 2441/2473 co-relation queries the response was YES. [2023-08-26 09:15:12,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4766 conditions, 1813 events. 828/1813 cut-off events. For 2441/2473 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 12140 event pairs, 131 based on Foata normal form. 2/1778 useless extension candidates. Maximal degree in co-relation 4752. Up to 718 conditions per place. [2023-08-26 09:15:12,293 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 37 selfloop transitions, 2 changer transitions 45/95 dead transitions. [2023-08-26 09:15:12,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 95 transitions, 586 flow [2023-08-26 09:15:12,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:12,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1395 transitions. [2023-08-26 09:15:12,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42081447963800905 [2023-08-26 09:15:12,297 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1395 transitions. [2023-08-26 09:15:12,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1395 transitions. [2023-08-26 09:15:12,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:12,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1395 transitions. [2023-08-26 09:15:12,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 279.0) internal successors, (1395), 5 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:12,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:12,304 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:12,305 INFO L175 Difference]: Start difference. First operand has 69 places, 46 transitions, 186 flow. Second operand 5 states and 1395 transitions. [2023-08-26 09:15:12,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 95 transitions, 586 flow [2023-08-26 09:15:12,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 95 transitions, 557 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-08-26 09:15:12,314 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 140 flow [2023-08-26 09:15:12,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2023-08-26 09:15:12,314 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -33 predicate places. [2023-08-26 09:15:12,315 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 140 flow [2023-08-26 09:15:12,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 273.25) internal successors, (1093), 4 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:12,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:12,315 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:12,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 09:15:12,315 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:12,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:12,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1667380772, now seen corresponding path program 3 times [2023-08-26 09:15:12,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:12,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525916455] [2023-08-26 09:15:12,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:12,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:13,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525916455] [2023-08-26 09:15:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525916455] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905172612] [2023-08-26 09:15:13,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 09:15:13,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:13,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:13,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:15:13,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 09:15:13,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 09:15:13,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:15:13,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 31 conjunts are in the unsatisfiable core [2023-08-26 09:15:13,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:15:13,586 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-26 09:15:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:13,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:15:13,812 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:13,812 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-26 09:15:13,847 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:13,847 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 09:15:14,118 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:14,118 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 95 [2023-08-26 09:15:14,167 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:14,168 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 09:15:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:14,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905172612] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:14,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-26 09:15:14,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 9] total 21 [2023-08-26 09:15:14,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215878056] [2023-08-26 09:15:14,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:14,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:15:14,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:14,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:15:14,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-08-26 09:15:14,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 663 [2023-08-26 09:15:14,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 140 flow. Second operand has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:14,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:14,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 663 [2023-08-26 09:15:14,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:15,167 INFO L124 PetriNetUnfolderBase]: 880/1712 cut-off events. [2023-08-26 09:15:15,167 INFO L125 PetriNetUnfolderBase]: For 3150/3216 co-relation queries the response was YES. [2023-08-26 09:15:15,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4993 conditions, 1712 events. 880/1712 cut-off events. For 3150/3216 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10091 event pairs, 125 based on Foata normal form. 3/1677 useless extension candidates. Maximal degree in co-relation 4980. Up to 421 conditions per place. [2023-08-26 09:15:15,180 INFO L140 encePairwiseOnDemand]: 652/663 looper letters, 72 selfloop transitions, 16 changer transitions 49/148 dead transitions. [2023-08-26 09:15:15,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 148 transitions, 815 flow [2023-08-26 09:15:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 09:15:15,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 09:15:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2654 transitions. [2023-08-26 09:15:15,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36391059920471686 [2023-08-26 09:15:15,187 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2654 transitions. [2023-08-26 09:15:15,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2654 transitions. [2023-08-26 09:15:15,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:15,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2654 transitions. [2023-08-26 09:15:15,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 241.27272727272728) internal successors, (2654), 11 states have internal predecessors, (2654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:15,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 663.0) internal successors, (7956), 12 states have internal predecessors, (7956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:15,202 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 663.0) internal successors, (7956), 12 states have internal predecessors, (7956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:15,202 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 140 flow. Second operand 11 states and 2654 transitions. [2023-08-26 09:15:15,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 148 transitions, 815 flow [2023-08-26 09:15:15,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 148 transitions, 750 flow, removed 21 selfloop flow, removed 8 redundant places. [2023-08-26 09:15:15,211 INFO L231 Difference]: Finished difference. Result has 69 places, 51 transitions, 241 flow [2023-08-26 09:15:15,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=241, PETRI_PLACES=69, PETRI_TRANSITIONS=51} [2023-08-26 09:15:15,211 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -27 predicate places. [2023-08-26 09:15:15,212 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 51 transitions, 241 flow [2023-08-26 09:15:15,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:15,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:15,212 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:15,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 09:15:15,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-26 09:15:15,419 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:15,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:15,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1455420808, now seen corresponding path program 4 times [2023-08-26 09:15:15,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:15,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002195860] [2023-08-26 09:15:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:15,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-26 09:15:16,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:16,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002195860] [2023-08-26 09:15:16,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002195860] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:15:16,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:15:16,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:15:16,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90795573] [2023-08-26 09:15:16,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:15:16,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:15:16,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:16,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:15:16,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:15:16,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 663 [2023-08-26 09:15:16,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 51 transitions, 241 flow. Second operand has 8 states, 8 states have (on average 212.125) internal successors, (1697), 8 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:16,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:16,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 663 [2023-08-26 09:15:16,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:16,769 INFO L124 PetriNetUnfolderBase]: 2410/4145 cut-off events. [2023-08-26 09:15:16,769 INFO L125 PetriNetUnfolderBase]: For 8220/8307 co-relation queries the response was YES. [2023-08-26 09:15:16,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12851 conditions, 4145 events. 2410/4145 cut-off events. For 8220/8307 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 26932 event pairs, 365 based on Foata normal form. 2/4067 useless extension candidates. Maximal degree in co-relation 12833. Up to 1845 conditions per place. [2023-08-26 09:15:16,802 INFO L140 encePairwiseOnDemand]: 657/663 looper letters, 71 selfloop transitions, 8 changer transitions 50/132 dead transitions. [2023-08-26 09:15:16,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 132 transitions, 861 flow [2023-08-26 09:15:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 09:15:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 09:15:16,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1764 transitions. [2023-08-26 09:15:16,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.332579185520362 [2023-08-26 09:15:16,808 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1764 transitions. [2023-08-26 09:15:16,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1764 transitions. [2023-08-26 09:15:16,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:16,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1764 transitions. [2023-08-26 09:15:16,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.5) internal successors, (1764), 8 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:16,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 663.0) internal successors, (5967), 9 states have internal predecessors, (5967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:16,818 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 663.0) internal successors, (5967), 9 states have internal predecessors, (5967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:16,819 INFO L175 Difference]: Start difference. First operand has 69 places, 51 transitions, 241 flow. Second operand 8 states and 1764 transitions. [2023-08-26 09:15:16,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 132 transitions, 861 flow [2023-08-26 09:15:16,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 132 transitions, 847 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-26 09:15:16,828 INFO L231 Difference]: Finished difference. Result has 71 places, 55 transitions, 298 flow [2023-08-26 09:15:16,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=298, PETRI_PLACES=71, PETRI_TRANSITIONS=55} [2023-08-26 09:15:16,829 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -25 predicate places. [2023-08-26 09:15:16,829 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 55 transitions, 298 flow [2023-08-26 09:15:16,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 212.125) internal successors, (1697), 8 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:16,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:16,830 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:16,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 09:15:16,830 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:16,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:16,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1206498728, now seen corresponding path program 5 times [2023-08-26 09:15:16,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:16,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996102558] [2023-08-26 09:15:16,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:16,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:17,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:17,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996102558] [2023-08-26 09:15:17,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996102558] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:17,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963397911] [2023-08-26 09:15:17,247 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-26 09:15:17,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:17,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:17,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:15:17,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 09:15:17,653 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-08-26 09:15:17,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:15:17,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-26 09:15:17,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:15:17,927 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-26 09:15:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:17,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:15:18,109 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:18,109 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-26 09:15:18,134 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:18,134 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 09:15:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:18,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963397911] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:15:18,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:15:18,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 6] total 18 [2023-08-26 09:15:18,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773984452] [2023-08-26 09:15:18,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:15:18,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-26 09:15:18,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-26 09:15:18,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-08-26 09:15:18,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 663 [2023-08-26 09:15:18,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 55 transitions, 298 flow. Second operand has 19 states, 19 states have (on average 229.57894736842104) internal successors, (4362), 19 states have internal predecessors, (4362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:18,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:18,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 663 [2023-08-26 09:15:18,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:20,858 INFO L124 PetriNetUnfolderBase]: 3190/6051 cut-off events. [2023-08-26 09:15:20,859 INFO L125 PetriNetUnfolderBase]: For 14973/15208 co-relation queries the response was YES. [2023-08-26 09:15:20,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19018 conditions, 6051 events. 3190/6051 cut-off events. For 14973/15208 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 46036 event pairs, 284 based on Foata normal form. 41/6050 useless extension candidates. Maximal degree in co-relation 19000. Up to 1716 conditions per place. [2023-08-26 09:15:20,893 INFO L140 encePairwiseOnDemand]: 650/663 looper letters, 125 selfloop transitions, 30 changer transitions 323/489 dead transitions. [2023-08-26 09:15:20,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 489 transitions, 3415 flow [2023-08-26 09:15:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-08-26 09:15:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-08-26 09:15:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 9662 transitions. [2023-08-26 09:15:20,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3554427399477615 [2023-08-26 09:15:20,915 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 9662 transitions. [2023-08-26 09:15:20,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 9662 transitions. [2023-08-26 09:15:20,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:20,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 9662 transitions. [2023-08-26 09:15:20,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 235.65853658536585) internal successors, (9662), 41 states have internal predecessors, (9662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:20,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 663.0) internal successors, (27846), 42 states have internal predecessors, (27846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:20,974 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 663.0) internal successors, (27846), 42 states have internal predecessors, (27846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:20,975 INFO L175 Difference]: Start difference. First operand has 71 places, 55 transitions, 298 flow. Second operand 41 states and 9662 transitions. [2023-08-26 09:15:20,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 489 transitions, 3415 flow [2023-08-26 09:15:21,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 489 transitions, 3241 flow, removed 61 selfloop flow, removed 5 redundant places. [2023-08-26 09:15:21,007 INFO L231 Difference]: Finished difference. Result has 139 places, 75 transitions, 680 flow [2023-08-26 09:15:21,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=680, PETRI_PLACES=139, PETRI_TRANSITIONS=75} [2023-08-26 09:15:21,008 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 43 predicate places. [2023-08-26 09:15:21,008 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 75 transitions, 680 flow [2023-08-26 09:15:21,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 229.57894736842104) internal successors, (4362), 19 states have internal predecessors, (4362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:21,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:21,010 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:21,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 09:15:21,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:21,217 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:21,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash 865564370, now seen corresponding path program 6 times [2023-08-26 09:15:21,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:21,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958351782] [2023-08-26 09:15:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:21,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:21,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:21,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958351782] [2023-08-26 09:15:21,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958351782] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:21,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746031683] [2023-08-26 09:15:21,608 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-26 09:15:21,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:21,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:21,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:15:21,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 09:15:21,933 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-08-26 09:15:21,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:15:21,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-26 09:15:21,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:15:22,048 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:22,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:15:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:22,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746031683] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:15:22,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:15:22,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2023-08-26 09:15:22,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502243723] [2023-08-26 09:15:22,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:15:22,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 09:15:22,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:22,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 09:15:22,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 09:15:22,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 663 [2023-08-26 09:15:22,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 75 transitions, 680 flow. Second operand has 5 states, 5 states have (on average 274.6) internal successors, (1373), 5 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:22,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:22,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 663 [2023-08-26 09:15:22,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:22,808 INFO L124 PetriNetUnfolderBase]: 1324/2781 cut-off events. [2023-08-26 09:15:22,809 INFO L125 PetriNetUnfolderBase]: For 67228/67540 co-relation queries the response was YES. [2023-08-26 09:15:22,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16249 conditions, 2781 events. 1324/2781 cut-off events. For 67228/67540 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 19512 event pairs, 307 based on Foata normal form. 14/2752 useless extension candidates. Maximal degree in co-relation 16198. Up to 1538 conditions per place. [2023-08-26 09:15:22,841 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 64 selfloop transitions, 8 changer transitions 46/129 dead transitions. [2023-08-26 09:15:22,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 129 transitions, 1503 flow [2023-08-26 09:15:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:15:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:15:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1384 transitions. [2023-08-26 09:15:22,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41749622926093516 [2023-08-26 09:15:22,844 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1384 transitions. [2023-08-26 09:15:22,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1384 transitions. [2023-08-26 09:15:22,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:22,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1384 transitions. [2023-08-26 09:15:22,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 276.8) internal successors, (1384), 5 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:22,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:22,850 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:22,850 INFO L175 Difference]: Start difference. First operand has 139 places, 75 transitions, 680 flow. Second operand 5 states and 1384 transitions. [2023-08-26 09:15:22,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 129 transitions, 1503 flow [2023-08-26 09:15:22,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 1236 flow, removed 129 selfloop flow, removed 29 redundant places. [2023-08-26 09:15:23,001 INFO L231 Difference]: Finished difference. Result has 90 places, 70 transitions, 526 flow [2023-08-26 09:15:23,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=526, PETRI_PLACES=90, PETRI_TRANSITIONS=70} [2023-08-26 09:15:23,002 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -6 predicate places. [2023-08-26 09:15:23,002 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 70 transitions, 526 flow [2023-08-26 09:15:23,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 274.6) internal successors, (1373), 5 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:23,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:15:23,003 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:23,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 09:15:23,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:23,204 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-26 09:15:23,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:15:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash -985854922, now seen corresponding path program 7 times [2023-08-26 09:15:23,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:15:23,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652628709] [2023-08-26 09:15:23,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:15:23,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:15:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:15:23,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:15:23,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652628709] [2023-08-26 09:15:23,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652628709] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:15:23,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943191231] [2023-08-26 09:15:23,696 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-26 09:15:23,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:15:23,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:15:23,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:15:23,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 09:15:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:15:23,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 23 conjunts are in the unsatisfiable core [2023-08-26 09:15:23,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:15:23,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 70 [2023-08-26 09:15:24,013 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:24,014 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 09:15:24,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 09:15:24,060 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 09:15:24,081 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-26 09:15:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:15:24,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:15:24,383 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:24,383 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-26 09:15:24,410 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:24,411 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-26 09:15:24,415 WARN L839 $PredicateComparison]: unable to prove that (or (= (mod c_~b2~0 256) 0) (let ((.cse0 (select |c_#memory_int| c_~A~0.base))) (and (or (forall ((thread2Thread1of1ForFork2_~i~1 Int)) (<= c_~max~0 (select .cse0 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (forall ((v_ArrVal_1403 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1403) c_~A~0.base) c_~A~0.offset) (+ c_~max~0 1)))) (forall ((v_ArrVal_1403 (Array Int Int)) (thread2Thread1of1ForFork2_~i~1 Int)) (let ((.cse1 (select .cse0 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse1 c_~max~0) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1403) c_~A~0.base) c_~A~0.offset) (+ .cse1 1)))))))) is different from false [2023-08-26 09:15:26,628 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:15:26,628 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 79 [2023-08-26 09:15:26,655 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2023-08-26 09:15:26,659 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2023-08-26 09:15:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-08-26 09:15:26,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943191231] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:15:26,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:15:26,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 23 [2023-08-26 09:15:26,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652173492] [2023-08-26 09:15:26,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:15:26,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-26 09:15:26,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:15:26,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-26 09:15:26,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=448, Unknown=14, NotChecked=44, Total=600 [2023-08-26 09:15:26,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 663 [2023-08-26 09:15:26,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 70 transitions, 526 flow. Second operand has 25 states, 25 states have (on average 224.88) internal successors, (5622), 25 states have internal predecessors, (5622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:26,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:15:26,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 663 [2023-08-26 09:15:26,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:15:27,662 INFO L124 PetriNetUnfolderBase]: 1063/2072 cut-off events. [2023-08-26 09:15:27,662 INFO L125 PetriNetUnfolderBase]: For 18426/18604 co-relation queries the response was YES. [2023-08-26 09:15:27,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9414 conditions, 2072 events. 1063/2072 cut-off events. For 18426/18604 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12782 event pairs, 81 based on Foata normal form. 31/2092 useless extension candidates. Maximal degree in co-relation 9387. Up to 598 conditions per place. [2023-08-26 09:15:27,672 INFO L140 encePairwiseOnDemand]: 653/663 looper letters, 0 selfloop transitions, 0 changer transitions 179/179 dead transitions. [2023-08-26 09:15:27,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 179 transitions, 1550 flow [2023-08-26 09:15:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-26 09:15:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-26 09:15:27,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3893 transitions. [2023-08-26 09:15:27,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3453996983408748 [2023-08-26 09:15:27,688 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3893 transitions. [2023-08-26 09:15:27,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3893 transitions. [2023-08-26 09:15:27,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:15:27,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3893 transitions. [2023-08-26 09:15:27,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 229.0) internal successors, (3893), 17 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:27,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 663.0) internal successors, (11934), 18 states have internal predecessors, (11934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:27,713 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 663.0) internal successors, (11934), 18 states have internal predecessors, (11934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:27,713 INFO L175 Difference]: Start difference. First operand has 90 places, 70 transitions, 526 flow. Second operand 17 states and 3893 transitions. [2023-08-26 09:15:27,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 179 transitions, 1550 flow [2023-08-26 09:15:27,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 179 transitions, 1452 flow, removed 39 selfloop flow, removed 6 redundant places. [2023-08-26 09:15:27,741 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2023-08-26 09:15:27,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2023-08-26 09:15:27,742 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -3 predicate places. [2023-08-26 09:15:27,742 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2023-08-26 09:15:27,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 224.88) internal successors, (5622), 25 states have internal predecessors, (5622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:15:27,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (85 of 86 remaining) [2023-08-26 09:15:27,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (84 of 86 remaining) [2023-08-26 09:15:27,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (83 of 86 remaining) [2023-08-26 09:15:27,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (82 of 86 remaining) [2023-08-26 09:15:27,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (81 of 86 remaining) [2023-08-26 09:15:27,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (80 of 86 remaining) [2023-08-26 09:15:27,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (79 of 86 remaining) [2023-08-26 09:15:27,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (78 of 86 remaining) [2023-08-26 09:15:27,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (77 of 86 remaining) [2023-08-26 09:15:27,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (76 of 86 remaining) [2023-08-26 09:15:27,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (75 of 86 remaining) [2023-08-26 09:15:27,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (74 of 86 remaining) [2023-08-26 09:15:27,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (73 of 86 remaining) [2023-08-26 09:15:27,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (72 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (71 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (70 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (69 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (68 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (67 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (66 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (65 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (64 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 86 remaining) [2023-08-26 09:15:27,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (62 of 86 remaining) [2023-08-26 09:15:27,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 86 remaining) [2023-08-26 09:15:27,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 86 remaining) [2023-08-26 09:15:27,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 86 remaining) [2023-08-26 09:15:27,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (57 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (51 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (50 of 86 remaining) [2023-08-26 09:15:27,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (48 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (47 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (46 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (45 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (44 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (43 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (42 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (41 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (40 of 86 remaining) [2023-08-26 09:15:27,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (39 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (38 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (37 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (36 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (35 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (34 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (33 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONASSERT (32 of 86 remaining) [2023-08-26 09:15:27,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 86 remaining) [2023-08-26 09:15:27,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (22 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (21 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (20 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (19 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (18 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (17 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (16 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 86 remaining) [2023-08-26 09:15:27,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (13 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (12 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (11 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (10 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (9 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (8 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (7 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (5 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 86 remaining) [2023-08-26 09:15:27,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 86 remaining) [2023-08-26 09:15:27,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 86 remaining) [2023-08-26 09:15:27,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 86 remaining) [2023-08-26 09:15:27,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 86 remaining) [2023-08-26 09:15:27,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-26 09:15:27,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-26 09:15:27,964 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:15:27,969 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 09:15:27,969 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 09:15:27,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:15:27 BasicIcfg [2023-08-26 09:15:27,972 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 09:15:27,972 INFO L158 Benchmark]: Toolchain (without parser) took 39358.66ms. Allocated memory was 396.4MB in the beginning and 1.1GB in the end (delta: 727.7MB). Free memory was 353.2MB in the beginning and 865.0MB in the end (delta: -511.8MB). Peak memory consumption was 219.3MB. Max. memory is 16.0GB. [2023-08-26 09:15:27,972 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 396.4MB. Free memory was 374.1MB in the beginning and 373.9MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 09:15:27,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.33ms. Allocated memory is still 396.4MB. Free memory was 352.1MB in the beginning and 339.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 09:15:27,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.65ms. Allocated memory is still 396.4MB. Free memory was 339.5MB in the beginning and 337.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 09:15:27,973 INFO L158 Benchmark]: Boogie Preprocessor took 66.99ms. Allocated memory is still 396.4MB. Free memory was 337.4MB in the beginning and 334.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 09:15:27,973 INFO L158 Benchmark]: RCFGBuilder took 1022.75ms. Allocated memory is still 396.4MB. Free memory was 334.3MB in the beginning and 269.3MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. [2023-08-26 09:15:27,974 INFO L158 Benchmark]: TraceAbstraction took 37904.59ms. Allocated memory was 396.4MB in the beginning and 1.1GB in the end (delta: 727.7MB). Free memory was 268.2MB in the beginning and 865.0MB in the end (delta: -596.8MB). Peak memory consumption was 133.4MB. Max. memory is 16.0GB. [2023-08-26 09:15:27,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 396.4MB. Free memory was 374.1MB in the beginning and 373.9MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 292.33ms. Allocated memory is still 396.4MB. Free memory was 352.1MB in the beginning and 339.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.65ms. Allocated memory is still 396.4MB. Free memory was 339.5MB in the beginning and 337.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 66.99ms. Allocated memory is still 396.4MB. Free memory was 337.4MB in the beginning and 334.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1022.75ms. Allocated memory is still 396.4MB. Free memory was 334.3MB in the beginning and 269.3MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. * TraceAbstraction took 37904.59ms. Allocated memory was 396.4MB in the beginning and 1.1GB in the end (delta: 727.7MB). Free memory was 268.2MB in the beginning and 865.0MB in the end (delta: -596.8MB). Peak memory consumption was 133.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4s, 305 PlacesBefore, 96 PlacesAfterwards, 310 TransitionsBefore, 91 TransitionsAfterwards, 5184 CoEnabledTransitionPairs, 10 FixpointIterations, 246 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 4 ConcurrentYvCompositions, 10 ChoiceCompositions, 339 TotalNumberOfCompositions, 34871 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13133, independent: 12320, independent conditional: 0, independent unconditional: 12320, dependent: 813, dependent conditional: 0, dependent unconditional: 813, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2356, independent: 2274, independent conditional: 0, independent unconditional: 2274, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13133, independent: 10046, independent conditional: 0, independent unconditional: 10046, dependent: 731, dependent conditional: 0, dependent unconditional: 731, unknown: 2356, unknown conditional: 0, unknown unconditional: 2356] , Statistics on independence cache: Total cache size (in pairs): 549, Positive cache size: 493, Positive conditional cache size: 0, Positive unconditional cache size: 493, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 110]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 112]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 374 locations, 86 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: 37.7s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1360 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1360 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 415 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2871 IncrementalHoareTripleChecker+Invalid, 3455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 6 mSDtfsCounter, 2871 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 531 GetRequests, 335 SyntacticMatches, 8 SemanticMatches, 188 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=680occurred in iteration=12, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 739 ConstructedInterpolants, 22 QuantifiedInterpolants, 8058 SizeOfPredicates, 103 NumberOfNonLiveVariables, 2240 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 53/93 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 54 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 09:15:28,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...