./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:28:58,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:28:58,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:28:58,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:28:58,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:28:58,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:28:58,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:28:58,842 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:28:58,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:28:58,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:28:58,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:28:58,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:28:58,845 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:28:58,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:28:58,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:28:58,848 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:28:58,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:28:58,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:28:58,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:28:58,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:28:58,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:28:58,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:28:58,853 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:28:58,853 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:28:58,853 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:28:58,854 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:28:58,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:28:58,854 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:28:58,854 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:28:58,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:28:58,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:28:58,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:28:58,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:28:58,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:28:58,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:28:58,857 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:28:58,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:28:58,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:28:58,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:28:58,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:28:58,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:28:58,858 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-10 14:28:59,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:28:59,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:28:59,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:28:59,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:28:59,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:28:59,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-10 14:29:00,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:29:00,882 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:29:00,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-10 14:29:00,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d7fd7f7a/da321317421e4ba89aa88380db4fb93d/FLAG944664246 [2024-11-10 14:29:01,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d7fd7f7a/da321317421e4ba89aa88380db4fb93d [2024-11-10 14:29:01,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:29:01,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:29:01,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:29:01,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:29:01,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:29:01,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a2b8ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01, skipping insertion in model container [2024-11-10 14:29:01,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:29:01,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:29:01,724 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:29:01,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:29:01,823 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:29:01,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01 WrapperNode [2024-11-10 14:29:01,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:29:01,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:01,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:29:01,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:29:01,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,895 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2024-11-10 14:29:01,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:01,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:29:01,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:29:01,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:29:01,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,925 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:29:01,938 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:29:01,938 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:29:01,938 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:29:01,939 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (1/1) ... [2024-11-10 14:29:01,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:29:01,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:01,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:29:01,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:29:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:29:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:29:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:29:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:29:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:29:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:29:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:29:02,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:29:02,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:29:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:29:02,038 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:29:02,217 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:29:02,220 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:29:02,621 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:29:02,621 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:29:02,659 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:29:02,659 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:29:02,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:02 BoogieIcfgContainer [2024-11-10 14:29:02,660 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:29:02,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:29:02,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:29:02,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:29:02,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:29:01" (1/3) ... [2024-11-10 14:29:02,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d9ffc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:02, skipping insertion in model container [2024-11-10 14:29:02,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:01" (2/3) ... [2024-11-10 14:29:02,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d9ffc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:02, skipping insertion in model container [2024-11-10 14:29:02,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:02" (3/3) ... [2024-11-10 14:29:02,673 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-10 14:29:02,688 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:29:02,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 14:29:02,689 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:29:02,770 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:29:02,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 188 transitions, 380 flow [2024-11-10 14:29:02,886 INFO L124 PetriNetUnfolderBase]: 6/187 cut-off events. [2024-11-10 14:29:02,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:02,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 187 events. 6/187 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 237 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2024-11-10 14:29:02,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 188 transitions, 380 flow [2024-11-10 14:29:02,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 187 transitions, 377 flow [2024-11-10 14:29:02,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:29:02,921 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@552ee628, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:29:02,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 14:29:02,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:29:02,955 INFO L124 PetriNetUnfolderBase]: 4/119 cut-off events. [2024-11-10 14:29:02,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:02,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:02,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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] [2024-11-10 14:29:02,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:02,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1496096940, now seen corresponding path program 1 times [2024-11-10 14:29:02,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:02,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40164911] [2024-11-10 14:29:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:03,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:03,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40164911] [2024-11-10 14:29:03,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40164911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:03,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:03,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:29:03,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258746630] [2024-11-10 14:29:03,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:03,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:29:03,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:03,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:29:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:29:03,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 188 [2024-11-10 14:29:03,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 187 transitions, 377 flow. Second operand has 2 states, 2 states have (on average 180.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:03,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:03,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 188 [2024-11-10 14:29:03,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:03,533 INFO L124 PetriNetUnfolderBase]: 13/320 cut-off events. [2024-11-10 14:29:03,533 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:29:03,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 320 events. 13/320 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 883 event pairs, 8 based on Foata normal form. 11/309 useless extension candidates. Maximal degree in co-relation 263. Up to 26 conditions per place. [2024-11-10 14:29:03,539 INFO L140 encePairwiseOnDemand]: 185/188 looper letters, 7 selfloop transitions, 0 changer transitions 0/184 dead transitions. [2024-11-10 14:29:03,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 184 transitions, 385 flow [2024-11-10 14:29:03,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:29:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:29:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 366 transitions. [2024-11-10 14:29:03,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.973404255319149 [2024-11-10 14:29:03,555 INFO L175 Difference]: Start difference. First operand has 185 places, 187 transitions, 377 flow. Second operand 2 states and 366 transitions. [2024-11-10 14:29:03,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 184 transitions, 385 flow [2024-11-10 14:29:03,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 184 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:03,563 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 370 flow [2024-11-10 14:29:03,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=370, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2024-11-10 14:29:03,573 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 0 predicate places. [2024-11-10 14:29:03,573 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 370 flow [2024-11-10 14:29:03,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 180.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:03,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:03,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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] [2024-11-10 14:29:03,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:29:03,574 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:03,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1104272244, now seen corresponding path program 1 times [2024-11-10 14:29:03,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:03,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618436848] [2024-11-10 14:29:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:03,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:03,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:03,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618436848] [2024-11-10 14:29:03,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618436848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:03,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:03,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:29:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928244984] [2024-11-10 14:29:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:03,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:29:03,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:03,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:29:03,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:29:03,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 188 [2024-11-10 14:29:03,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:03,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:03,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 188 [2024-11-10 14:29:03,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:03,861 INFO L124 PetriNetUnfolderBase]: 15/327 cut-off events. [2024-11-10 14:29:03,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:03,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 327 events. 15/327 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 921 event pairs, 10 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 365. Up to 36 conditions per place. [2024-11-10 14:29:03,865 INFO L140 encePairwiseOnDemand]: 185/188 looper letters, 12 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2024-11-10 14:29:03,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 185 transitions, 400 flow [2024-11-10 14:29:03,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:29:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:29:03,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2024-11-10 14:29:03,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414893617021277 [2024-11-10 14:29:03,873 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 370 flow. Second operand 3 states and 531 transitions. [2024-11-10 14:29:03,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 185 transitions, 400 flow [2024-11-10 14:29:03,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 185 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:03,878 INFO L231 Difference]: Finished difference. Result has 188 places, 185 transitions, 382 flow [2024-11-10 14:29:03,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=188, PETRI_TRANSITIONS=185} [2024-11-10 14:29:03,879 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 3 predicate places. [2024-11-10 14:29:03,879 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 185 transitions, 382 flow [2024-11-10 14:29:03,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:03,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:03,880 INFO L204 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, 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, 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] [2024-11-10 14:29:03,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:29:03,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:03,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:03,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1843947706, now seen corresponding path program 1 times [2024-11-10 14:29:03,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:03,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163497250] [2024-11-10 14:29:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:03,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:04,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163497250] [2024-11-10 14:29:04,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163497250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:04,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309604684] [2024-11-10 14:29:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:04,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:04,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:04,091 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) [2024-11-10 14:29:04,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:29:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 14:29:04,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:29:04,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:04,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309604684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:04,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:04,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-10 14:29:04,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678062424] [2024-11-10 14:29:04,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:04,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:29:04,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:04,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:29:04,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:04,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 188 [2024-11-10 14:29:04,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 185 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:04,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:04,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 188 [2024-11-10 14:29:04,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:04,383 INFO L124 PetriNetUnfolderBase]: 35/491 cut-off events. [2024-11-10 14:29:04,384 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:29:04,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 491 events. 35/491 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1762 event pairs, 10 based on Foata normal form. 3/460 useless extension candidates. Maximal degree in co-relation 566. Up to 51 conditions per place. [2024-11-10 14:29:04,390 INFO L140 encePairwiseOnDemand]: 185/188 looper letters, 16 selfloop transitions, 2 changer transitions 0/190 dead transitions. [2024-11-10 14:29:04,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 190 transitions, 428 flow [2024-11-10 14:29:04,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:29:04,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:29:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2024-11-10 14:29:04,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9485815602836879 [2024-11-10 14:29:04,393 INFO L175 Difference]: Start difference. First operand has 188 places, 185 transitions, 382 flow. Second operand 3 states and 535 transitions. [2024-11-10 14:29:04,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 190 transitions, 428 flow [2024-11-10 14:29:04,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 190 transitions, 426 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:04,399 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 392 flow [2024-11-10 14:29:04,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2024-11-10 14:29:04,400 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 5 predicate places. [2024-11-10 14:29:04,401 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 392 flow [2024-11-10 14:29:04,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:04,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:04,402 INFO L204 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, 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, 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] [2024-11-10 14:29:04,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:29:04,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:04,607 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:04,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash -575905128, now seen corresponding path program 1 times [2024-11-10 14:29:04,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:04,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921239638] [2024-11-10 14:29:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:04,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921239638] [2024-11-10 14:29:04,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921239638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:04,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251774865] [2024-11-10 14:29:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:04,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:04,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:04,759 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) [2024-11-10 14:29:04,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:29:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:29:04,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:04,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251774865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:04,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:04,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:29:04,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220597213] [2024-11-10 14:29:04,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:04,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:29:04,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:04,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:29:04,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:29:05,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 188 [2024-11-10 14:29:05,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 392 flow. Second operand has 10 states, 10 states have (on average 171.0) internal successors, (1710), 10 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:05,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:05,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 188 [2024-11-10 14:29:05,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:05,189 INFO L124 PetriNetUnfolderBase]: 24/503 cut-off events. [2024-11-10 14:29:05,189 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:29:05,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 503 events. 24/503 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1622 event pairs, 14 based on Foata normal form. 2/471 useless extension candidates. Maximal degree in co-relation 577. Up to 51 conditions per place. [2024-11-10 14:29:05,193 INFO L140 encePairwiseOnDemand]: 182/188 looper letters, 16 selfloop transitions, 9 changer transitions 0/194 dead transitions. [2024-11-10 14:29:05,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 194 transitions, 460 flow [2024-11-10 14:29:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:05,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1548 transitions. [2024-11-10 14:29:05,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9148936170212766 [2024-11-10 14:29:05,198 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 392 flow. Second operand 9 states and 1548 transitions. [2024-11-10 14:29:05,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 194 transitions, 460 flow [2024-11-10 14:29:05,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 194 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:05,202 INFO L231 Difference]: Finished difference. Result has 200 places, 192 transitions, 440 flow [2024-11-10 14:29:05,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=440, PETRI_PLACES=200, PETRI_TRANSITIONS=192} [2024-11-10 14:29:05,204 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 15 predicate places. [2024-11-10 14:29:05,204 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 192 transitions, 440 flow [2024-11-10 14:29:05,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 171.0) internal successors, (1710), 10 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:05,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:05,206 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:05,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 14:29:05,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 14:29:05,411 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:05,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 683456756, now seen corresponding path program 2 times [2024-11-10 14:29:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:05,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276945672] [2024-11-10 14:29:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:05,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:05,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:05,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276945672] [2024-11-10 14:29:05,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276945672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:05,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558344166] [2024-11-10 14:29:05,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:29:05,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:05,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:05,614 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) [2024-11-10 14:29:05,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:29:05,702 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:29:05,702 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:29:05,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:29:05,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:05,742 INFO L378 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 11 treesize of output 7 [2024-11-10 14:29:05,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 21 treesize of output 20 [2024-11-10 14:29:05,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:05,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 30 treesize of output 32 [2024-11-10 14:29:05,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:05,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 44 [2024-11-10 14:29:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 14:29:05,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:05,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558344166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:05,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:05,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-10 14:29:05,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592390534] [2024-11-10 14:29:05,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:05,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:05,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:05,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:05,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:06,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:06,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 192 transitions, 440 flow. Second operand has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:06,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:06,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:06,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:06,394 INFO L124 PetriNetUnfolderBase]: 333/1575 cut-off events. [2024-11-10 14:29:06,394 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:29:06,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1575 events. 333/1575 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10306 event pairs, 160 based on Foata normal form. 0/1485 useless extension candidates. Maximal degree in co-relation 2279. Up to 544 conditions per place. [2024-11-10 14:29:06,403 INFO L140 encePairwiseOnDemand]: 177/188 looper letters, 36 selfloop transitions, 22 changer transitions 0/221 dead transitions. [2024-11-10 14:29:06,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 221 transitions, 614 flow [2024-11-10 14:29:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:06,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:06,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 995 transitions. [2024-11-10 14:29:06,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820921985815603 [2024-11-10 14:29:06,406 INFO L175 Difference]: Start difference. First operand has 200 places, 192 transitions, 440 flow. Second operand 6 states and 995 transitions. [2024-11-10 14:29:06,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 221 transitions, 614 flow [2024-11-10 14:29:06,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 221 transitions, 608 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:06,411 INFO L231 Difference]: Finished difference. Result has 209 places, 213 transitions, 584 flow [2024-11-10 14:29:06,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=209, PETRI_TRANSITIONS=213} [2024-11-10 14:29:06,412 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 24 predicate places. [2024-11-10 14:29:06,412 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 213 transitions, 584 flow [2024-11-10 14:29:06,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:06,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:06,413 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:06,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:06,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:06,614 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:06,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:06,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1953815074, now seen corresponding path program 1 times [2024-11-10 14:29:06,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:06,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42277866] [2024-11-10 14:29:06,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:06,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:06,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:06,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42277866] [2024-11-10 14:29:06,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42277866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:06,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727744258] [2024-11-10 14:29:06,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:06,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:06,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:06,818 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) [2024-11-10 14:29:06,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:29:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:06,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:29:06,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:06,978 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:07,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727744258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:07,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:07,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:29:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928430037] [2024-11-10 14:29:07,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:07,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:29:07,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:07,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:29:07,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:29:07,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 188 [2024-11-10 14:29:07,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 213 transitions, 584 flow. Second operand has 18 states, 18 states have (on average 171.0) internal successors, (3078), 18 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:07,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:07,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 188 [2024-11-10 14:29:07,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:07,500 INFO L124 PetriNetUnfolderBase]: 118/1139 cut-off events. [2024-11-10 14:29:07,500 INFO L125 PetriNetUnfolderBase]: For 110/116 co-relation queries the response was YES. [2024-11-10 14:29:07,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 1139 events. 118/1139 cut-off events. For 110/116 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5993 event pairs, 24 based on Foata normal form. 4/1069 useless extension candidates. Maximal degree in co-relation 1625. Up to 133 conditions per place. [2024-11-10 14:29:07,507 INFO L140 encePairwiseOnDemand]: 182/188 looper letters, 20 selfloop transitions, 21 changer transitions 0/231 dead transitions. [2024-11-10 14:29:07,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 231 transitions, 754 flow [2024-11-10 14:29:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:29:07,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:29:07,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3594 transitions. [2024-11-10 14:29:07,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9103343465045592 [2024-11-10 14:29:07,514 INFO L175 Difference]: Start difference. First operand has 209 places, 213 transitions, 584 flow. Second operand 21 states and 3594 transitions. [2024-11-10 14:29:07,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 231 transitions, 754 flow [2024-11-10 14:29:07,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 231 transitions, 754 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:07,523 INFO L231 Difference]: Finished difference. Result has 234 places, 226 transitions, 714 flow [2024-11-10 14:29:07,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=714, PETRI_PLACES=234, PETRI_TRANSITIONS=226} [2024-11-10 14:29:07,525 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 49 predicate places. [2024-11-10 14:29:07,525 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 226 transitions, 714 flow [2024-11-10 14:29:07,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 171.0) internal successors, (3078), 18 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:07,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:07,528 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:07,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:07,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:07,729 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:07,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:07,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1344984214, now seen corresponding path program 2 times [2024-11-10 14:29:07,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:07,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174080511] [2024-11-10 14:29:07,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:07,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:08,104 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:08,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:08,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174080511] [2024-11-10 14:29:08,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174080511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:08,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564813397] [2024-11-10 14:29:08,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:29:08,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:08,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:08,106 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) [2024-11-10 14:29:08,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:29:08,196 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:29:08,196 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:29:08,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 14:29:08,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:08,212 INFO L378 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 11 treesize of output 7 [2024-11-10 14:29:08,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 21 treesize of output 20 [2024-11-10 14:29:08,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:08,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 30 treesize of output 32 [2024-11-10 14:29:08,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:08,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 44 [2024-11-10 14:29:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-10 14:29:08,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:08,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564813397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:08,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:08,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:29:08,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834573482] [2024-11-10 14:29:08,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:08,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:08,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:08,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:08,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:29:08,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:08,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 226 transitions, 714 flow. Second operand has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:08,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:08,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:08,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:09,004 INFO L124 PetriNetUnfolderBase]: 505/2458 cut-off events. [2024-11-10 14:29:09,004 INFO L125 PetriNetUnfolderBase]: For 427/457 co-relation queries the response was YES. [2024-11-10 14:29:09,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4152 conditions, 2458 events. 505/2458 cut-off events. For 427/457 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 18076 event pairs, 194 based on Foata normal form. 5/2322 useless extension candidates. Maximal degree in co-relation 4134. Up to 824 conditions per place. [2024-11-10 14:29:09,018 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 61 selfloop transitions, 46 changer transitions 0/287 dead transitions. [2024-11-10 14:29:09,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 287 transitions, 1092 flow [2024-11-10 14:29:09,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:09,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:09,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1019 transitions. [2024-11-10 14:29:09,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9033687943262412 [2024-11-10 14:29:09,021 INFO L175 Difference]: Start difference. First operand has 234 places, 226 transitions, 714 flow. Second operand 6 states and 1019 transitions. [2024-11-10 14:29:09,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 287 transitions, 1092 flow [2024-11-10 14:29:09,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 287 transitions, 1068 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:29:09,028 INFO L231 Difference]: Finished difference. Result has 238 places, 271 transitions, 1044 flow [2024-11-10 14:29:09,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1044, PETRI_PLACES=238, PETRI_TRANSITIONS=271} [2024-11-10 14:29:09,029 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 53 predicate places. [2024-11-10 14:29:09,030 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 271 transitions, 1044 flow [2024-11-10 14:29:09,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:09,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:09,031 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 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, 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, 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] [2024-11-10 14:29:09,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:09,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:09,232 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:09,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1363719162, now seen corresponding path program 1 times [2024-11-10 14:29:09,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:09,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492523469] [2024-11-10 14:29:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:09,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:09,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:09,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492523469] [2024-11-10 14:29:09,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492523469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:09,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821520107] [2024-11-10 14:29:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:09,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:09,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:09,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:29:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:09,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:29:09,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:09,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:10,032 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:10,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821520107] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:10,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:10,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:29:10,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621228099] [2024-11-10 14:29:10,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:10,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:29:10,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:10,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:29:10,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:29:10,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 188 [2024-11-10 14:29:10,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 271 transitions, 1044 flow. Second operand has 23 states, 23 states have (on average 171.08695652173913) internal successors, (3935), 23 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:10,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:10,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 188 [2024-11-10 14:29:10,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:10,631 INFO L124 PetriNetUnfolderBase]: 264/1777 cut-off events. [2024-11-10 14:29:10,631 INFO L125 PetriNetUnfolderBase]: For 676/705 co-relation queries the response was YES. [2024-11-10 14:29:10,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3203 conditions, 1777 events. 264/1777 cut-off events. For 676/705 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11825 event pairs, 40 based on Foata normal form. 13/1706 useless extension candidates. Maximal degree in co-relation 3180. Up to 204 conditions per place. [2024-11-10 14:29:10,639 INFO L140 encePairwiseOnDemand]: 182/188 looper letters, 23 selfloop transitions, 30 changer transitions 0/288 dead transitions. [2024-11-10 14:29:10,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 288 transitions, 1272 flow [2024-11-10 14:29:10,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:29:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:29:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5126 transitions. [2024-11-10 14:29:10,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9088652482269504 [2024-11-10 14:29:10,649 INFO L175 Difference]: Start difference. First operand has 238 places, 271 transitions, 1044 flow. Second operand 30 states and 5126 transitions. [2024-11-10 14:29:10,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 288 transitions, 1272 flow [2024-11-10 14:29:10,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 288 transitions, 1272 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:10,664 INFO L231 Difference]: Finished difference. Result has 271 places, 281 transitions, 1196 flow [2024-11-10 14:29:10,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1196, PETRI_PLACES=271, PETRI_TRANSITIONS=281} [2024-11-10 14:29:10,665 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 86 predicate places. [2024-11-10 14:29:10,667 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 281 transitions, 1196 flow [2024-11-10 14:29:10,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 171.08695652173913) internal successors, (3935), 23 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:10,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:10,670 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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] [2024-11-10 14:29:10,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:10,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:10,875 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:10,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash 188563140, now seen corresponding path program 2 times [2024-11-10 14:29:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:10,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531288577] [2024-11-10 14:29:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:10,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:11,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:11,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531288577] [2024-11-10 14:29:11,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531288577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:11,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:11,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:11,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126599973] [2024-11-10 14:29:11,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:11,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:11,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:11,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:11,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:11,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 188 [2024-11-10 14:29:11,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 281 transitions, 1196 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:11,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:11,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 188 [2024-11-10 14:29:11,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:12,198 INFO L124 PetriNetUnfolderBase]: 949/3364 cut-off events. [2024-11-10 14:29:12,199 INFO L125 PetriNetUnfolderBase]: For 2004/2099 co-relation queries the response was YES. [2024-11-10 14:29:12,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7595 conditions, 3364 events. 949/3364 cut-off events. For 2004/2099 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24181 event pairs, 303 based on Foata normal form. 20/3226 useless extension candidates. Maximal degree in co-relation 7568. Up to 1634 conditions per place. [2024-11-10 14:29:12,221 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 102 selfloop transitions, 57 changer transitions 0/336 dead transitions. [2024-11-10 14:29:12,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 336 transitions, 1758 flow [2024-11-10 14:29:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2024-11-10 14:29:12,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8519503546099291 [2024-11-10 14:29:12,224 INFO L175 Difference]: Start difference. First operand has 271 places, 281 transitions, 1196 flow. Second operand 6 states and 961 transitions. [2024-11-10 14:29:12,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 336 transitions, 1758 flow [2024-11-10 14:29:12,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 336 transitions, 1712 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-10 14:29:12,239 INFO L231 Difference]: Finished difference. Result has 263 places, 328 transitions, 1648 flow [2024-11-10 14:29:12,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1648, PETRI_PLACES=263, PETRI_TRANSITIONS=328} [2024-11-10 14:29:12,241 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 78 predicate places. [2024-11-10 14:29:12,241 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 328 transitions, 1648 flow [2024-11-10 14:29:12,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:12,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:12,242 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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] [2024-11-10 14:29:12,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:29:12,243 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:12,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:12,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1944443804, now seen corresponding path program 1 times [2024-11-10 14:29:12,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:12,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623088997] [2024-11-10 14:29:12,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:12,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:12,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:12,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623088997] [2024-11-10 14:29:12,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623088997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:12,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:12,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:12,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942140129] [2024-11-10 14:29:12,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:12,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:12,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:12,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:12,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:12,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 188 [2024-11-10 14:29:12,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 328 transitions, 1648 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:12,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:12,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 188 [2024-11-10 14:29:12,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:14,047 INFO L124 PetriNetUnfolderBase]: 1319/4633 cut-off events. [2024-11-10 14:29:14,048 INFO L125 PetriNetUnfolderBase]: For 4934/5068 co-relation queries the response was YES. [2024-11-10 14:29:14,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11713 conditions, 4633 events. 1319/4633 cut-off events. For 4934/5068 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 36382 event pairs, 341 based on Foata normal form. 40/4484 useless extension candidates. Maximal degree in co-relation 11681. Up to 2190 conditions per place. [2024-11-10 14:29:14,087 INFO L140 encePairwiseOnDemand]: 165/188 looper letters, 143 selfloop transitions, 103 changer transitions 4/429 dead transitions. [2024-11-10 14:29:14,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 429 transitions, 2614 flow [2024-11-10 14:29:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2024-11-10 14:29:14,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8874113475177305 [2024-11-10 14:29:14,091 INFO L175 Difference]: Start difference. First operand has 263 places, 328 transitions, 1648 flow. Second operand 6 states and 1001 transitions. [2024-11-10 14:29:14,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 429 transitions, 2614 flow [2024-11-10 14:29:14,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 429 transitions, 2550 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:14,121 INFO L231 Difference]: Finished difference. Result has 273 places, 413 transitions, 2500 flow [2024-11-10 14:29:14,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=1590, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2500, PETRI_PLACES=273, PETRI_TRANSITIONS=413} [2024-11-10 14:29:14,124 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 88 predicate places. [2024-11-10 14:29:14,124 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 413 transitions, 2500 flow [2024-11-10 14:29:14,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:14,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:14,125 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:14,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:29:14,125 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:14,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:14,126 INFO L85 PathProgramCache]: Analyzing trace with hash 914273879, now seen corresponding path program 1 times [2024-11-10 14:29:14,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:14,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578697832] [2024-11-10 14:29:14,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:14,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:14,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578697832] [2024-11-10 14:29:14,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578697832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:14,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:14,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:14,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952296569] [2024-11-10 14:29:14,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:14,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:14,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:14,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:14,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:16,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:16,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 413 transitions, 2500 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:16,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:16,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:16,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:17,328 INFO L124 PetriNetUnfolderBase]: 1224/5014 cut-off events. [2024-11-10 14:29:17,329 INFO L125 PetriNetUnfolderBase]: For 6129/6284 co-relation queries the response was YES. [2024-11-10 14:29:17,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13317 conditions, 5014 events. 1224/5014 cut-off events. For 6129/6284 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 42629 event pairs, 179 based on Foata normal form. 37/4973 useless extension candidates. Maximal degree in co-relation 13280. Up to 724 conditions per place. [2024-11-10 14:29:17,373 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 73 selfloop transitions, 15 changer transitions 0/471 dead transitions. [2024-11-10 14:29:17,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 471 transitions, 2792 flow [2024-11-10 14:29:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1494 transitions. [2024-11-10 14:29:17,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8829787234042553 [2024-11-10 14:29:17,378 INFO L175 Difference]: Start difference. First operand has 273 places, 413 transitions, 2500 flow. Second operand 9 states and 1494 transitions. [2024-11-10 14:29:17,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 471 transitions, 2792 flow [2024-11-10 14:29:17,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 471 transitions, 2678 flow, removed 57 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:17,446 INFO L231 Difference]: Finished difference. Result has 288 places, 427 transitions, 2498 flow [2024-11-10 14:29:17,446 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2386, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2498, PETRI_PLACES=288, PETRI_TRANSITIONS=427} [2024-11-10 14:29:17,447 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 103 predicate places. [2024-11-10 14:29:17,447 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 427 transitions, 2498 flow [2024-11-10 14:29:17,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:17,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:17,448 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:17,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:29:17,448 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:17,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:17,449 INFO L85 PathProgramCache]: Analyzing trace with hash -263739281, now seen corresponding path program 2 times [2024-11-10 14:29:17,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:17,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011886582] [2024-11-10 14:29:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:17,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:18,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:18,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011886582] [2024-11-10 14:29:18,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011886582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:18,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:18,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:18,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029761283] [2024-11-10 14:29:18,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:18,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:18,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:18,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:18,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:19,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:19,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 427 transitions, 2498 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:19,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:19,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:19,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:21,320 INFO L124 PetriNetUnfolderBase]: 2479/9401 cut-off events. [2024-11-10 14:29:21,320 INFO L125 PetriNetUnfolderBase]: For 12447/12775 co-relation queries the response was YES. [2024-11-10 14:29:21,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26566 conditions, 9401 events. 2479/9401 cut-off events. For 12447/12775 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 89438 event pairs, 325 based on Foata normal form. 101/9355 useless extension candidates. Maximal degree in co-relation 26521. Up to 1468 conditions per place. [2024-11-10 14:29:21,403 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 119 selfloop transitions, 20 changer transitions 4/526 dead transitions. [2024-11-10 14:29:21,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 526 transitions, 3216 flow [2024-11-10 14:29:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:21,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1502 transitions. [2024-11-10 14:29:21,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8877068557919622 [2024-11-10 14:29:21,408 INFO L175 Difference]: Start difference. First operand has 288 places, 427 transitions, 2498 flow. Second operand 9 states and 1502 transitions. [2024-11-10 14:29:21,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 526 transitions, 3216 flow [2024-11-10 14:29:21,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 526 transitions, 3206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:21,503 INFO L231 Difference]: Finished difference. Result has 302 places, 444 transitions, 2677 flow [2024-11-10 14:29:21,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2496, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2677, PETRI_PLACES=302, PETRI_TRANSITIONS=444} [2024-11-10 14:29:21,504 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 117 predicate places. [2024-11-10 14:29:21,504 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 444 transitions, 2677 flow [2024-11-10 14:29:21,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:21,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:21,506 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:21,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:29:21,506 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:21,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash 596473411, now seen corresponding path program 3 times [2024-11-10 14:29:21,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:21,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562302858] [2024-11-10 14:29:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:21,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:22,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:22,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562302858] [2024-11-10 14:29:22,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562302858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:22,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:22,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:22,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612584097] [2024-11-10 14:29:22,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:22,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:22,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:22,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:22,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:23,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:23,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 444 transitions, 2677 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:23,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:23,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:23,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:25,327 INFO L124 PetriNetUnfolderBase]: 2778/10557 cut-off events. [2024-11-10 14:29:25,328 INFO L125 PetriNetUnfolderBase]: For 16085/16518 co-relation queries the response was YES. [2024-11-10 14:29:25,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31028 conditions, 10557 events. 2778/10557 cut-off events. For 16085/16518 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 101671 event pairs, 320 based on Foata normal form. 107/10483 useless extension candidates. Maximal degree in co-relation 30975. Up to 1564 conditions per place. [2024-11-10 14:29:25,404 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 123 selfloop transitions, 22 changer transitions 0/528 dead transitions. [2024-11-10 14:29:25,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 528 transitions, 3465 flow [2024-11-10 14:29:25,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1499 transitions. [2024-11-10 14:29:25,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8859338061465721 [2024-11-10 14:29:25,408 INFO L175 Difference]: Start difference. First operand has 302 places, 444 transitions, 2677 flow. Second operand 9 states and 1499 transitions. [2024-11-10 14:29:25,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 528 transitions, 3465 flow [2024-11-10 14:29:25,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 528 transitions, 3427 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:25,520 INFO L231 Difference]: Finished difference. Result has 315 places, 456 transitions, 2846 flow [2024-11-10 14:29:25,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2663, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2846, PETRI_PLACES=315, PETRI_TRANSITIONS=456} [2024-11-10 14:29:25,521 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 130 predicate places. [2024-11-10 14:29:25,521 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 456 transitions, 2846 flow [2024-11-10 14:29:25,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:25,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:25,522 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:25,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:29:25,522 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:25,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:25,523 INFO L85 PathProgramCache]: Analyzing trace with hash -907631421, now seen corresponding path program 4 times [2024-11-10 14:29:25,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:25,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869052291] [2024-11-10 14:29:25,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:25,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:26,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:26,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869052291] [2024-11-10 14:29:26,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869052291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:26,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:26,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:26,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711079008] [2024-11-10 14:29:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:26,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:26,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:26,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:27,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:27,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 456 transitions, 2846 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:27,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:27,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:27,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:29,631 INFO L124 PetriNetUnfolderBase]: 3073/11483 cut-off events. [2024-11-10 14:29:29,631 INFO L125 PetriNetUnfolderBase]: For 20048/20550 co-relation queries the response was YES. [2024-11-10 14:29:29,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34913 conditions, 11483 events. 3073/11483 cut-off events. For 20048/20550 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 111941 event pairs, 345 based on Foata normal form. 121/11443 useless extension candidates. Maximal degree in co-relation 34854. Up to 1851 conditions per place. [2024-11-10 14:29:29,724 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 138 selfloop transitions, 27 changer transitions 4/552 dead transitions. [2024-11-10 14:29:29,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 552 transitions, 3831 flow [2024-11-10 14:29:29,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:29,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1505 transitions. [2024-11-10 14:29:29,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8894799054373522 [2024-11-10 14:29:29,727 INFO L175 Difference]: Start difference. First operand has 315 places, 456 transitions, 2846 flow. Second operand 9 states and 1505 transitions. [2024-11-10 14:29:29,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 552 transitions, 3831 flow [2024-11-10 14:29:29,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 552 transitions, 3752 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-10 14:29:29,881 INFO L231 Difference]: Finished difference. Result has 325 places, 468 transitions, 3025 flow [2024-11-10 14:29:29,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2820, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3025, PETRI_PLACES=325, PETRI_TRANSITIONS=468} [2024-11-10 14:29:29,882 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 140 predicate places. [2024-11-10 14:29:29,882 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 468 transitions, 3025 flow [2024-11-10 14:29:29,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:29,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:29,883 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:29,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:29:29,884 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:29,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1652935613, now seen corresponding path program 5 times [2024-11-10 14:29:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:29,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640154691] [2024-11-10 14:29:29,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:29,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:30,459 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:30,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:30,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640154691] [2024-11-10 14:29:30,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640154691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:30,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:30,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:30,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330525399] [2024-11-10 14:29:30,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:30,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:30,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:30,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:30,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:31,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:31,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 468 transitions, 3025 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:31,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:31,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:31,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:34,090 INFO L124 PetriNetUnfolderBase]: 3406/12791 cut-off events. [2024-11-10 14:29:34,090 INFO L125 PetriNetUnfolderBase]: For 25062/25631 co-relation queries the response was YES. [2024-11-10 14:29:34,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39520 conditions, 12791 events. 3406/12791 cut-off events. For 25062/25631 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 127474 event pairs, 382 based on Foata normal form. 114/12710 useless extension candidates. Maximal degree in co-relation 39456. Up to 1958 conditions per place. [2024-11-10 14:29:34,197 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 137 selfloop transitions, 29 changer transitions 0/549 dead transitions. [2024-11-10 14:29:34,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 549 transitions, 4008 flow [2024-11-10 14:29:34,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:34,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1502 transitions. [2024-11-10 14:29:34,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8877068557919622 [2024-11-10 14:29:34,200 INFO L175 Difference]: Start difference. First operand has 325 places, 468 transitions, 3025 flow. Second operand 9 states and 1502 transitions. [2024-11-10 14:29:34,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 549 transitions, 4008 flow [2024-11-10 14:29:34,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 549 transitions, 3917 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-10 14:29:34,347 INFO L231 Difference]: Finished difference. Result has 336 places, 483 transitions, 3263 flow [2024-11-10 14:29:34,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2984, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3263, PETRI_PLACES=336, PETRI_TRANSITIONS=483} [2024-11-10 14:29:34,350 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 151 predicate places. [2024-11-10 14:29:34,350 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 483 transitions, 3263 flow [2024-11-10 14:29:34,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:34,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:34,352 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:34,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:29:34,353 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:34,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash 889161479, now seen corresponding path program 6 times [2024-11-10 14:29:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:34,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809931570] [2024-11-10 14:29:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:34,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:35,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:35,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809931570] [2024-11-10 14:29:35,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809931570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:35,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:35,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:35,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379151062] [2024-11-10 14:29:35,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:35,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:35,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:35,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:35,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:36,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:36,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 483 transitions, 3263 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:36,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:36,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:36,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:38,607 INFO L124 PetriNetUnfolderBase]: 3725/13800 cut-off events. [2024-11-10 14:29:38,608 INFO L125 PetriNetUnfolderBase]: For 31296/31938 co-relation queries the response was YES. [2024-11-10 14:29:38,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43982 conditions, 13800 events. 3725/13800 cut-off events. For 31296/31938 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 139454 event pairs, 381 based on Foata normal form. 122/13738 useless extension candidates. Maximal degree in co-relation 43912. Up to 2227 conditions per place. [2024-11-10 14:29:38,726 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 154 selfloop transitions, 34 changer transitions 2/573 dead transitions. [2024-11-10 14:29:38,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 573 transitions, 4414 flow [2024-11-10 14:29:38,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1506 transitions. [2024-11-10 14:29:38,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8900709219858156 [2024-11-10 14:29:38,729 INFO L175 Difference]: Start difference. First operand has 336 places, 483 transitions, 3263 flow. Second operand 9 states and 1506 transitions. [2024-11-10 14:29:38,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 573 transitions, 4414 flow [2024-11-10 14:29:38,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 573 transitions, 4318 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:38,941 INFO L231 Difference]: Finished difference. Result has 348 places, 498 transitions, 3510 flow [2024-11-10 14:29:38,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=3204, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3510, PETRI_PLACES=348, PETRI_TRANSITIONS=498} [2024-11-10 14:29:38,942 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 163 predicate places. [2024-11-10 14:29:38,942 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 498 transitions, 3510 flow [2024-11-10 14:29:38,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:38,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:38,943 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:38,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:29:38,944 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:38,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash -341497219, now seen corresponding path program 7 times [2024-11-10 14:29:38,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446019122] [2024-11-10 14:29:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:39,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:39,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446019122] [2024-11-10 14:29:39,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446019122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:39,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:39,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:39,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413002867] [2024-11-10 14:29:39,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:39,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:39,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:39,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:39,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:40,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:40,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 498 transitions, 3510 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:40,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:40,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:40,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:43,486 INFO L124 PetriNetUnfolderBase]: 4069/15136 cut-off events. [2024-11-10 14:29:43,486 INFO L125 PetriNetUnfolderBase]: For 39737/40446 co-relation queries the response was YES. [2024-11-10 14:29:43,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49310 conditions, 15136 events. 4069/15136 cut-off events. For 39737/40446 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 156003 event pairs, 462 based on Foata normal form. 111/15021 useless extension candidates. Maximal degree in co-relation 49234. Up to 2361 conditions per place. [2024-11-10 14:29:43,636 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 150 selfloop transitions, 36 changer transitions 0/569 dead transitions. [2024-11-10 14:29:43,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 569 transitions, 4612 flow [2024-11-10 14:29:43,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:43,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1504 transitions. [2024-11-10 14:29:43,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-10 14:29:43,639 INFO L175 Difference]: Start difference. First operand has 348 places, 498 transitions, 3510 flow. Second operand 9 states and 1504 transitions. [2024-11-10 14:29:43,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 569 transitions, 4612 flow [2024-11-10 14:29:43,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 569 transitions, 4512 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:43,905 INFO L231 Difference]: Finished difference. Result has 361 places, 517 transitions, 3861 flow [2024-11-10 14:29:43,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3861, PETRI_PLACES=361, PETRI_TRANSITIONS=517} [2024-11-10 14:29:43,906 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 176 predicate places. [2024-11-10 14:29:43,906 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 517 transitions, 3861 flow [2024-11-10 14:29:43,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:43,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:43,907 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:43,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:29:43,908 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:43,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1324957025, now seen corresponding path program 8 times [2024-11-10 14:29:43,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:43,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133207795] [2024-11-10 14:29:43,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:43,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:44,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133207795] [2024-11-10 14:29:44,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133207795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:44,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:44,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:44,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782451822] [2024-11-10 14:29:44,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:44,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:44,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:44,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:44,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:44,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:44,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 517 transitions, 3861 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:44,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:44,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:44,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:48,316 INFO L124 PetriNetUnfolderBase]: 4671/17046 cut-off events. [2024-11-10 14:29:48,317 INFO L125 PetriNetUnfolderBase]: For 50919/51812 co-relation queries the response was YES. [2024-11-10 14:29:48,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57154 conditions, 17046 events. 4671/17046 cut-off events. For 50919/51812 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 180630 event pairs, 474 based on Foata normal form. 140/16966 useless extension candidates. Maximal degree in co-relation 57071. Up to 2778 conditions per place. [2024-11-10 14:29:48,490 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 173 selfloop transitions, 45 changer transitions 0/601 dead transitions. [2024-11-10 14:29:48,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 601 transitions, 5178 flow [2024-11-10 14:29:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1508 transitions. [2024-11-10 14:29:48,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8912529550827423 [2024-11-10 14:29:48,494 INFO L175 Difference]: Start difference. First operand has 361 places, 517 transitions, 3861 flow. Second operand 9 states and 1508 transitions. [2024-11-10 14:29:48,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 601 transitions, 5178 flow [2024-11-10 14:29:48,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 601 transitions, 5074 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:48,840 INFO L231 Difference]: Finished difference. Result has 376 places, 535 transitions, 4215 flow [2024-11-10 14:29:48,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=3757, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4215, PETRI_PLACES=376, PETRI_TRANSITIONS=535} [2024-11-10 14:29:48,841 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 191 predicate places. [2024-11-10 14:29:48,841 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 535 transitions, 4215 flow [2024-11-10 14:29:48,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:48,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:48,842 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:48,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:29:48,842 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:48,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash 434089087, now seen corresponding path program 9 times [2024-11-10 14:29:48,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:48,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175538825] [2024-11-10 14:29:48,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:48,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:49,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175538825] [2024-11-10 14:29:49,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175538825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:49,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:49,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:49,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021913753] [2024-11-10 14:29:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:49,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:49,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:49,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:50,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:50,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 535 transitions, 4215 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:50,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:50,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:50,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:53,950 INFO L124 PetriNetUnfolderBase]: 5258/19217 cut-off events. [2024-11-10 14:29:53,950 INFO L125 PetriNetUnfolderBase]: For 62852/63808 co-relation queries the response was YES. [2024-11-10 14:29:54,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65523 conditions, 19217 events. 5258/19217 cut-off events. For 62852/63808 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 209783 event pairs, 543 based on Foata normal form. 158/19131 useless extension candidates. Maximal degree in co-relation 65432. Up to 3106 conditions per place. [2024-11-10 14:29:54,129 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 186 selfloop transitions, 46 changer transitions 0/615 dead transitions. [2024-11-10 14:29:54,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 615 transitions, 5478 flow [2024-11-10 14:29:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:54,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1506 transitions. [2024-11-10 14:29:54,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8900709219858156 [2024-11-10 14:29:54,132 INFO L175 Difference]: Start difference. First operand has 376 places, 535 transitions, 4215 flow. Second operand 9 states and 1506 transitions. [2024-11-10 14:29:54,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 615 transitions, 5478 flow [2024-11-10 14:29:54,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 615 transitions, 5392 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:54,700 INFO L231 Difference]: Finished difference. Result has 390 places, 552 transitions, 4539 flow [2024-11-10 14:29:54,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=4129, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4539, PETRI_PLACES=390, PETRI_TRANSITIONS=552} [2024-11-10 14:29:54,701 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 205 predicate places. [2024-11-10 14:29:54,701 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 552 transitions, 4539 flow [2024-11-10 14:29:54,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:54,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:54,702 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:54,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:29:54,702 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:54,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:54,703 INFO L85 PathProgramCache]: Analyzing trace with hash -738182687, now seen corresponding path program 10 times [2024-11-10 14:29:54,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:54,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755323323] [2024-11-10 14:29:54,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:54,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:55,026 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:55,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:55,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755323323] [2024-11-10 14:29:55,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755323323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:55,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:55,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:55,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140937049] [2024-11-10 14:29:55,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:55,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:55,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:55,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:55,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:29:55,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 552 transitions, 4539 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:55,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:55,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:29:55,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:00,195 INFO L124 PetriNetUnfolderBase]: 5546/20100 cut-off events. [2024-11-10 14:30:00,195 INFO L125 PetriNetUnfolderBase]: For 71188/72203 co-relation queries the response was YES. [2024-11-10 14:30:00,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69581 conditions, 20100 events. 5546/20100 cut-off events. For 71188/72203 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 221754 event pairs, 559 based on Foata normal form. 176/20021 useless extension candidates. Maximal degree in co-relation 69483. Up to 3285 conditions per place. [2024-11-10 14:30:00,350 INFO L140 encePairwiseOnDemand]: 172/188 looper letters, 185 selfloop transitions, 53 changer transitions 0/621 dead transitions. [2024-11-10 14:30:00,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 621 transitions, 5845 flow [2024-11-10 14:30:00,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:30:00,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:30:00,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1508 transitions. [2024-11-10 14:30:00,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8912529550827423 [2024-11-10 14:30:00,352 INFO L175 Difference]: Start difference. First operand has 390 places, 552 transitions, 4539 flow. Second operand 9 states and 1508 transitions. [2024-11-10 14:30:00,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 621 transitions, 5845 flow [2024-11-10 14:30:00,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 621 transitions, 5692 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-10 14:30:00,721 INFO L231 Difference]: Finished difference. Result has 400 places, 566 transitions, 4818 flow [2024-11-10 14:30:00,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=4442, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4818, PETRI_PLACES=400, PETRI_TRANSITIONS=566} [2024-11-10 14:30:00,722 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 215 predicate places. [2024-11-10 14:30:00,722 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 566 transitions, 4818 flow [2024-11-10 14:30:00,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:00,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:00,723 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:00,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:30:00,723 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:30:00,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash 332113369, now seen corresponding path program 11 times [2024-11-10 14:30:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:00,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763595836] [2024-11-10 14:30:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:00,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:01,031 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:30:01,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:01,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763595836] [2024-11-10 14:30:01,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763595836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:01,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:01,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:30:01,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579044122] [2024-11-10 14:30:01,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:01,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:30:01,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:01,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:30:01,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:30:01,645 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 188 [2024-11-10 14:30:01,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 566 transitions, 4818 flow. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:01,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:01,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 188 [2024-11-10 14:30:01,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand