./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.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/09-regions_13-arraycollapse_nr.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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:30:20,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:30:20,329 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:30:20,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:30:20,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:30:20,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:30:20,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:30:20,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:30:20,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:30:20,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:30:20,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:30:20,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:30:20,374 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:30:20,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:30:20,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:30:20,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:30:20,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:30:20,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:30:20,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:30:20,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:30:20,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:30:20,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:30:20,378 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:30:20,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:30:20,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:30:20,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:30:20,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:30:20,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:30:20,380 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:30:20,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:30:20,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:30:20,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:30:20,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:30:20,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:30:20,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:30:20,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:30:20,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:30:20,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:30:20,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:30:20,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:30:20,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:30:20,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2024-11-10 14:30:20,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:30:20,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:30:20,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:30:20,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:30:20,664 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:30:20,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-10 14:30:22,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:30:22,411 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:30:22,411 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-10 14:30:22,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4239ed3ee/4f3e2f1b6338409cab74a9d2c9cd05e5/FLAG626b39401 [2024-11-10 14:30:22,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4239ed3ee/4f3e2f1b6338409cab74a9d2c9cd05e5 [2024-11-10 14:30:22,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:30:22,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:30:22,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:30:22,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:30:22,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:30:22,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:30:22" (1/1) ... [2024-11-10 14:30:22,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172be218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:22, skipping insertion in model container [2024-11-10 14:30:22,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:30:22" (1/1) ... [2024-11-10 14:30:22,746 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:30:23,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:30:23,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:30:23,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:30:23,488 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:30:23,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23 WrapperNode [2024-11-10 14:30:23,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:30:23,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:30:23,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:30:23,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:30:23,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,590 INFO L138 Inliner]: procedures = 372, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 416 [2024-11-10 14:30:23,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:30:23,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:30:23,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:30:23,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:30:23,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,697 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:30:23,749 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:30:23,749 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:30:23,749 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:30:23,750 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (1/1) ... [2024-11-10 14:30:23,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:30:23,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:23,785 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 14:30:23,788 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 14:30:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-10 14:30:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-10 14:30:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:30:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:30:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:30:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:30:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:30:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:30:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-10 14:30:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:30:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:30:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:30:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:30:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:30:23,830 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 14:30:23,973 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:30:23,975 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:30:24,753 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:30:24,754 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:30:24,812 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:30:24,812 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:30:24,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:30:24 BoogieIcfgContainer [2024-11-10 14:30:24,816 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:30:24,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:30:24,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:30:24,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:30:24,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:30:22" (1/3) ... [2024-11-10 14:30:24,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d65dba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:30:24, skipping insertion in model container [2024-11-10 14:30:24,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:23" (2/3) ... [2024-11-10 14:30:24,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d65dba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:30:24, skipping insertion in model container [2024-11-10 14:30:24,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:30:24" (3/3) ... [2024-11-10 14:30:24,826 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2024-11-10 14:30:24,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:30:24,841 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-10 14:30:24,842 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:30:25,035 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:30:25,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 489 places, 490 transitions, 984 flow [2024-11-10 14:30:25,287 INFO L124 PetriNetUnfolderBase]: 5/489 cut-off events. [2024-11-10 14:30:25,287 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:30:25,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 489 events. 5/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 396 event pairs, 0 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 361. Up to 2 conditions per place. [2024-11-10 14:30:25,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 489 places, 490 transitions, 984 flow [2024-11-10 14:30:25,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 488 places, 489 transitions, 981 flow [2024-11-10 14:30:25,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:30:25,335 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;@20b1e2b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:30:25,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-10 14:30:25,362 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:30:25,362 INFO L124 PetriNetUnfolderBase]: 2/105 cut-off events. [2024-11-10 14:30:25,362 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:30:25,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:25,364 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] [2024-11-10 14:30:25,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:25,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash -193810191, now seen corresponding path program 1 times [2024-11-10 14:30:25,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:25,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414640916] [2024-11-10 14:30:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:25,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:26,345 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 14:30:26,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:26,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414640916] [2024-11-10 14:30:26,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414640916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:26,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:26,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330395814] [2024-11-10 14:30:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:26,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:26,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:26,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:26,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:27,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 490 [2024-11-10 14:30:27,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 489 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 0 states have call successors, (0), 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 14:30:27,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:27,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 490 [2024-11-10 14:30:27,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:28,020 INFO L124 PetriNetUnfolderBase]: 365/1843 cut-off events. [2024-11-10 14:30:28,020 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:30:28,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 1843 events. 365/1843 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9519 event pairs, 364 based on Foata normal form. 14/1719 useless extension candidates. Maximal degree in co-relation 2256. Up to 842 conditions per place. [2024-11-10 14:30:28,036 INFO L140 encePairwiseOnDemand]: 462/490 looper letters, 113 selfloop transitions, 20 changer transitions 2/481 dead transitions. [2024-11-10 14:30:28,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 481 transitions, 1231 flow [2024-11-10 14:30:28,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2235 transitions. [2024-11-10 14:30:28,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-10 14:30:28,064 INFO L175 Difference]: Start difference. First operand has 488 places, 489 transitions, 981 flow. Second operand 6 states and 2235 transitions. [2024-11-10 14:30:28,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 481 transitions, 1231 flow [2024-11-10 14:30:28,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 481 transitions, 1230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:30:28,117 INFO L231 Difference]: Finished difference. Result has 488 places, 479 transitions, 1000 flow [2024-11-10 14:30:28,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1000, PETRI_PLACES=488, PETRI_TRANSITIONS=479} [2024-11-10 14:30:28,126 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, 0 predicate places. [2024-11-10 14:30:28,126 INFO L471 AbstractCegarLoop]: Abstraction has has 488 places, 479 transitions, 1000 flow [2024-11-10 14:30:28,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 0 states have call successors, (0), 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 14:30:28,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:28,128 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, 1, 1, 1, 1, 1] [2024-11-10 14:30:28,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:30:28,129 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:28,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash -216626677, now seen corresponding path program 1 times [2024-11-10 14:30:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930349146] [2024-11-10 14:30:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:28,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:28,728 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 14:30:28,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:28,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930349146] [2024-11-10 14:30:28,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930349146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:28,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:28,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:28,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766313507] [2024-11-10 14:30:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:28,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:28,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:28,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:28,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:29,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 490 [2024-11-10 14:30:29,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 479 transitions, 1000 flow. Second operand has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 0 states have call successors, (0), 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 14:30:29,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:29,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 490 [2024-11-10 14:30:29,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:29,963 INFO L124 PetriNetUnfolderBase]: 365/1837 cut-off events. [2024-11-10 14:30:29,964 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:30:29,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2723 conditions, 1837 events. 365/1837 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9482 event pairs, 364 based on Foata normal form. 0/1705 useless extension candidates. Maximal degree in co-relation 2342. Up to 842 conditions per place. [2024-11-10 14:30:29,974 INFO L140 encePairwiseOnDemand]: 466/490 looper letters, 113 selfloop transitions, 20 changer transitions 0/475 dead transitions. [2024-11-10 14:30:29,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 475 transitions, 1258 flow [2024-11-10 14:30:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:29,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2231 transitions. [2024-11-10 14:30:29,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.758843537414966 [2024-11-10 14:30:29,980 INFO L175 Difference]: Start difference. First operand has 488 places, 479 transitions, 1000 flow. Second operand 6 states and 2231 transitions. [2024-11-10 14:30:29,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 475 transitions, 1258 flow [2024-11-10 14:30:30,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 475 transitions, 1218 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:30,044 INFO L231 Difference]: Finished difference. Result has 482 places, 475 transitions, 992 flow [2024-11-10 14:30:30,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=992, PETRI_PLACES=482, PETRI_TRANSITIONS=475} [2024-11-10 14:30:30,046 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -6 predicate places. [2024-11-10 14:30:30,046 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 475 transitions, 992 flow [2024-11-10 14:30:30,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 0 states have call successors, (0), 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 14:30:30,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:30,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:30,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:30:30,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:30,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:30,049 INFO L85 PathProgramCache]: Analyzing trace with hash 150412514, now seen corresponding path program 1 times [2024-11-10 14:30:30,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:30,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261157265] [2024-11-10 14:30:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:30,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:30,606 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 14:30:30,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:30,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261157265] [2024-11-10 14:30:30,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261157265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:30,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:30,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:30,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424665766] [2024-11-10 14:30:30,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:30,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:30,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:30,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:30,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:31,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 490 [2024-11-10 14:30:31,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 475 transitions, 992 flow. Second operand has 6 states, 6 states have (on average 352.8333333333333) internal successors, (2117), 6 states have internal predecessors, (2117), 0 states have call successors, (0), 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 14:30:31,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:31,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 490 [2024-11-10 14:30:31,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:31,638 INFO L124 PetriNetUnfolderBase]: 391/1925 cut-off events. [2024-11-10 14:30:31,638 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:30:31,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1925 events. 391/1925 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10246 event pairs, 390 based on Foata normal form. 0/1788 useless extension candidates. Maximal degree in co-relation 2468. Up to 911 conditions per place. [2024-11-10 14:30:31,647 INFO L140 encePairwiseOnDemand]: 484/490 looper letters, 130 selfloop transitions, 5 changer transitions 0/474 dead transitions. [2024-11-10 14:30:31,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 474 transitions, 1260 flow [2024-11-10 14:30:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:31,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2236 transitions. [2024-11-10 14:30:31,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7605442176870748 [2024-11-10 14:30:31,653 INFO L175 Difference]: Start difference. First operand has 482 places, 475 transitions, 992 flow. Second operand 6 states and 2236 transitions. [2024-11-10 14:30:31,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 474 transitions, 1260 flow [2024-11-10 14:30:31,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 474 transitions, 1220 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:31,661 INFO L231 Difference]: Finished difference. Result has 481 places, 474 transitions, 960 flow [2024-11-10 14:30:31,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=960, PETRI_PLACES=481, PETRI_TRANSITIONS=474} [2024-11-10 14:30:31,662 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -7 predicate places. [2024-11-10 14:30:31,663 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 474 transitions, 960 flow [2024-11-10 14:30:31,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 352.8333333333333) internal successors, (2117), 6 states have internal predecessors, (2117), 0 states have call successors, (0), 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 14:30:31,664 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:31,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:31,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:30:31,665 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:31,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash 122936915, now seen corresponding path program 1 times [2024-11-10 14:30:31,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:31,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660999725] [2024-11-10 14:30:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:31,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:31,823 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 14:30:31,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660999725] [2024-11-10 14:30:31,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660999725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:31,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:31,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:30:31,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445958325] [2024-11-10 14:30:31,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:31,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:30:31,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:30:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:30:31,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 490 [2024-11-10 14:30:31,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 474 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 476.3333333333333) internal successors, (1429), 3 states have internal predecessors, (1429), 0 states have call successors, (0), 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 14:30:31,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:31,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 490 [2024-11-10 14:30:31,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:31,991 INFO L124 PetriNetUnfolderBase]: 7/660 cut-off events. [2024-11-10 14:30:31,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:30:31,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 660 events. 7/660 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 644 event pairs, 6 based on Foata normal form. 1/625 useless extension candidates. Maximal degree in co-relation 497. Up to 24 conditions per place. [2024-11-10 14:30:31,994 INFO L140 encePairwiseOnDemand]: 487/490 looper letters, 10 selfloop transitions, 2 changer transitions 0/475 dead transitions. [2024-11-10 14:30:31,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 475 transitions, 986 flow [2024-11-10 14:30:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:30:31,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:30:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1438 transitions. [2024-11-10 14:30:31,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9782312925170068 [2024-11-10 14:30:31,999 INFO L175 Difference]: Start difference. First operand has 481 places, 474 transitions, 960 flow. Second operand 3 states and 1438 transitions. [2024-11-10 14:30:31,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 475 transitions, 986 flow [2024-11-10 14:30:32,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 475 transitions, 976 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:32,017 INFO L231 Difference]: Finished difference. Result has 479 places, 475 transitions, 962 flow [2024-11-10 14:30:32,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=962, PETRI_PLACES=479, PETRI_TRANSITIONS=475} [2024-11-10 14:30:32,020 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -9 predicate places. [2024-11-10 14:30:32,021 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 475 transitions, 962 flow [2024-11-10 14:30:32,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 476.3333333333333) internal successors, (1429), 3 states have internal predecessors, (1429), 0 states have call successors, (0), 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 14:30:32,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:32,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:32,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:30:32,024 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:32,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:32,025 INFO L85 PathProgramCache]: Analyzing trace with hash -289886916, now seen corresponding path program 1 times [2024-11-10 14:30:32,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:32,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80675189] [2024-11-10 14:30:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:32,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:32,773 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 14:30:32,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80675189] [2024-11-10 14:30:32,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80675189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:32,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:32,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:32,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20782526] [2024-11-10 14:30:32,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:32,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:32,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:32,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:32,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:33,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 490 [2024-11-10 14:30:33,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 475 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 396.8333333333333) internal successors, (2381), 6 states have internal predecessors, (2381), 0 states have call successors, (0), 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 14:30:33,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:33,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 490 [2024-11-10 14:30:33,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:33,763 INFO L124 PetriNetUnfolderBase]: 55/901 cut-off events. [2024-11-10 14:30:33,764 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 14:30:33,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 901 events. 55/901 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2256 event pairs, 54 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 925. Up to 227 conditions per place. [2024-11-10 14:30:33,767 INFO L140 encePairwiseOnDemand]: 484/490 looper letters, 89 selfloop transitions, 5 changer transitions 0/474 dead transitions. [2024-11-10 14:30:33,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 474 transitions, 1148 flow [2024-11-10 14:30:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:33,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2446 transitions. [2024-11-10 14:30:33,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8319727891156462 [2024-11-10 14:30:33,772 INFO L175 Difference]: Start difference. First operand has 479 places, 475 transitions, 962 flow. Second operand 6 states and 2446 transitions. [2024-11-10 14:30:33,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 474 transitions, 1148 flow [2024-11-10 14:30:33,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 474 transitions, 1146 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:30:33,780 INFO L231 Difference]: Finished difference. Result has 482 places, 474 transitions, 968 flow [2024-11-10 14:30:33,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=968, PETRI_PLACES=482, PETRI_TRANSITIONS=474} [2024-11-10 14:30:33,782 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -6 predicate places. [2024-11-10 14:30:33,782 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 474 transitions, 968 flow [2024-11-10 14:30:33,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 396.8333333333333) internal successors, (2381), 6 states have internal predecessors, (2381), 0 states have call successors, (0), 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 14:30:33,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:33,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:33,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:30:33,784 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:33,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:33,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1607781286, now seen corresponding path program 1 times [2024-11-10 14:30:33,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:33,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264267273] [2024-11-10 14:30:33,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:33,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:34,311 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 14:30:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:34,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264267273] [2024-11-10 14:30:34,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264267273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:34,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:34,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:34,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663806129] [2024-11-10 14:30:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:34,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:34,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 490 [2024-11-10 14:30:34,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 474 transitions, 968 flow. Second operand has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 0 states have call successors, (0), 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 14:30:34,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:34,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 490 [2024-11-10 14:30:34,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:35,153 INFO L124 PetriNetUnfolderBase]: 37/814 cut-off events. [2024-11-10 14:30:35,153 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 14:30:35,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 814 events. 37/814 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1743 event pairs, 36 based on Foata normal form. 0/771 useless extension candidates. Maximal degree in co-relation 793. Up to 198 conditions per place. [2024-11-10 14:30:35,157 INFO L140 encePairwiseOnDemand]: 472/490 looper letters, 93 selfloop transitions, 15 changer transitions 0/471 dead transitions. [2024-11-10 14:30:35,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 471 transitions, 1178 flow [2024-11-10 14:30:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2361 transitions. [2024-11-10 14:30:35,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8030612244897959 [2024-11-10 14:30:35,163 INFO L175 Difference]: Start difference. First operand has 482 places, 474 transitions, 968 flow. Second operand 6 states and 2361 transitions. [2024-11-10 14:30:35,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 471 transitions, 1178 flow [2024-11-10 14:30:35,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 471 transitions, 1168 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:35,172 INFO L231 Difference]: Finished difference. Result has 479 places, 471 transitions, 982 flow [2024-11-10 14:30:35,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=982, PETRI_PLACES=479, PETRI_TRANSITIONS=471} [2024-11-10 14:30:35,175 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -9 predicate places. [2024-11-10 14:30:35,175 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 471 transitions, 982 flow [2024-11-10 14:30:35,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 0 states have call successors, (0), 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 14:30:35,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:35,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:35,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:30:35,177 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:35,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:35,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2082666024, now seen corresponding path program 1 times [2024-11-10 14:30:35,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:35,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339980445] [2024-11-10 14:30:35,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:35,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:35,837 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 14:30:35,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:35,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339980445] [2024-11-10 14:30:35,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339980445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:35,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:35,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:35,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837566515] [2024-11-10 14:30:35,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:35,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:35,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:35,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:35,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:36,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 490 [2024-11-10 14:30:36,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 471 transitions, 982 flow. Second operand has 6 states, 6 states have (on average 343.1666666666667) internal successors, (2059), 6 states have internal predecessors, (2059), 0 states have call successors, (0), 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 14:30:36,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:36,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 490 [2024-11-10 14:30:36,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:36,944 INFO L124 PetriNetUnfolderBase]: 365/1936 cut-off events. [2024-11-10 14:30:36,944 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:30:36,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2883 conditions, 1936 events. 365/1936 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9479 event pairs, 364 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 2494. Up to 898 conditions per place. [2024-11-10 14:30:36,953 INFO L140 encePairwiseOnDemand]: 472/490 looper letters, 131 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2024-11-10 14:30:36,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 468 transitions, 1268 flow [2024-11-10 14:30:36,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2171 transitions. [2024-11-10 14:30:36,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7384353741496599 [2024-11-10 14:30:36,959 INFO L175 Difference]: Start difference. First operand has 479 places, 471 transitions, 982 flow. Second operand 6 states and 2171 transitions. [2024-11-10 14:30:36,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 468 transitions, 1268 flow [2024-11-10 14:30:36,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 468 transitions, 1238 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:36,968 INFO L231 Difference]: Finished difference. Result has 476 places, 468 transitions, 976 flow [2024-11-10 14:30:36,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=976, PETRI_PLACES=476, PETRI_TRANSITIONS=468} [2024-11-10 14:30:36,969 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -12 predicate places. [2024-11-10 14:30:36,969 INFO L471 AbstractCegarLoop]: Abstraction has has 476 places, 468 transitions, 976 flow [2024-11-10 14:30:36,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 343.1666666666667) internal successors, (2059), 6 states have internal predecessors, (2059), 0 states have call successors, (0), 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 14:30:36,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:36,971 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:36,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:30:36,972 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:36,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash -337411075, now seen corresponding path program 1 times [2024-11-10 14:30:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:36,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68163946] [2024-11-10 14:30:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:36,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:37,592 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 14:30:37,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:37,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68163946] [2024-11-10 14:30:37,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68163946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:37,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:37,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:37,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234430366] [2024-11-10 14:30:37,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:37,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:37,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:37,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:37,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:38,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 490 [2024-11-10 14:30:38,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 468 transitions, 976 flow. Second operand has 6 states, 6 states have (on average 346.6666666666667) internal successors, (2080), 6 states have internal predecessors, (2080), 0 states have call successors, (0), 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 14:30:38,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:38,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 490 [2024-11-10 14:30:38,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:38,671 INFO L124 PetriNetUnfolderBase]: 365/1932 cut-off events. [2024-11-10 14:30:38,671 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:30:38,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2875 conditions, 1932 events. 365/1932 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9436 event pairs, 364 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 2490. Up to 894 conditions per place. [2024-11-10 14:30:38,679 INFO L140 encePairwiseOnDemand]: 472/490 looper letters, 128 selfloop transitions, 15 changer transitions 0/465 dead transitions. [2024-11-10 14:30:38,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 465 transitions, 1256 flow [2024-11-10 14:30:38,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:38,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2186 transitions. [2024-11-10 14:30:38,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7435374149659864 [2024-11-10 14:30:38,684 INFO L175 Difference]: Start difference. First operand has 476 places, 468 transitions, 976 flow. Second operand 6 states and 2186 transitions. [2024-11-10 14:30:38,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 465 transitions, 1256 flow [2024-11-10 14:30:38,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 465 transitions, 1226 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:38,692 INFO L231 Difference]: Finished difference. Result has 473 places, 465 transitions, 970 flow [2024-11-10 14:30:38,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=970, PETRI_PLACES=473, PETRI_TRANSITIONS=465} [2024-11-10 14:30:38,695 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -15 predicate places. [2024-11-10 14:30:38,695 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 465 transitions, 970 flow [2024-11-10 14:30:38,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 346.6666666666667) internal successors, (2080), 6 states have internal predecessors, (2080), 0 states have call successors, (0), 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 14:30:38,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:38,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:38,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:30:38,697 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:38,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:38,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2119912406, now seen corresponding path program 1 times [2024-11-10 14:30:38,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:38,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090143437] [2024-11-10 14:30:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:38,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:38,938 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 14:30:38,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:38,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090143437] [2024-11-10 14:30:38,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090143437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:38,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62608870] [2024-11-10 14:30:38,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:38,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:38,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:38,942 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 14:30:38,944 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 14:30:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:39,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:30:39,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:39,397 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 14:30:39,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:30:39,587 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 14:30:39,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62608870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:30:39,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:30:39,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:30:39,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311369473] [2024-11-10 14:30:39,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:30:39,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:30:39,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:39,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:30:39,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:30:39,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 490 [2024-11-10 14:30:39,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 465 transitions, 970 flow. Second operand has 10 states, 10 states have (on average 473.8) internal successors, (4738), 10 states have internal predecessors, (4738), 0 states have call successors, (0), 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 14:30:39,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:39,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 490 [2024-11-10 14:30:39,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:39,885 INFO L124 PetriNetUnfolderBase]: 7/756 cut-off events. [2024-11-10 14:30:39,886 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 14:30:39,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 756 events. 7/756 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 6 based on Foata normal form. 2/736 useless extension candidates. Maximal degree in co-relation 394. Up to 24 conditions per place. [2024-11-10 14:30:39,888 INFO L140 encePairwiseOnDemand]: 484/490 looper letters, 14 selfloop transitions, 9 changer transitions 0/473 dead transitions. [2024-11-10 14:30:39,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 473 transitions, 1034 flow [2024-11-10 14:30:39,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:30:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:30:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4273 transitions. [2024-11-10 14:30:39,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9689342403628118 [2024-11-10 14:30:39,896 INFO L175 Difference]: Start difference. First operand has 473 places, 465 transitions, 970 flow. Second operand 9 states and 4273 transitions. [2024-11-10 14:30:39,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 473 transitions, 1034 flow [2024-11-10 14:30:39,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 473 transitions, 1004 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:39,905 INFO L231 Difference]: Finished difference. Result has 479 places, 471 transitions, 990 flow [2024-11-10 14:30:39,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=990, PETRI_PLACES=479, PETRI_TRANSITIONS=471} [2024-11-10 14:30:39,907 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -9 predicate places. [2024-11-10 14:30:39,907 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 471 transitions, 990 flow [2024-11-10 14:30:39,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 473.8) internal successors, (4738), 10 states have internal predecessors, (4738), 0 states have call successors, (0), 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 14:30:39,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:39,912 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:39,931 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 14:30:40,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:40,113 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:40,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash 812553142, now seen corresponding path program 2 times [2024-11-10 14:30:40,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:40,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78837959] [2024-11-10 14:30:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:40,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:40,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78837959] [2024-11-10 14:30:40,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78837959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:40,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015891000] [2024-11-10 14:30:40,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:30:40,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:40,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:40,750 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 14:30:40,751 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 14:30:41,029 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:30:41,030 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:30:41,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 14:30:41,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:41,097 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 15 treesize of output 11 [2024-11-10 14:30:41,116 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 28 treesize of output 27 [2024-11-10 14:30:41,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:41,149 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 40 treesize of output 42 [2024-11-10 14:30:41,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:41,185 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 52 treesize of output 57 [2024-11-10 14:30:41,215 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-10 14:30:41,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:30:41,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015891000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:41,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:30:41,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-10 14:30:41,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035292723] [2024-11-10 14:30:41,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:41,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:41,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:41,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:41,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:30:42,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 490 [2024-11-10 14:30:42,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 471 transitions, 990 flow. Second operand has 6 states, 6 states have (on average 396.3333333333333) internal successors, (2378), 6 states have internal predecessors, (2378), 0 states have call successors, (0), 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 14:30:42,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:42,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 490 [2024-11-10 14:30:42,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:42,847 INFO L124 PetriNetUnfolderBase]: 257/2062 cut-off events. [2024-11-10 14:30:42,848 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:30:42,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2765 conditions, 2062 events. 257/2062 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10065 event pairs, 36 based on Foata normal form. 0/1935 useless extension candidates. Maximal degree in co-relation 2260. Up to 523 conditions per place. [2024-11-10 14:30:42,857 INFO L140 encePairwiseOnDemand]: 461/490 looper letters, 99 selfloop transitions, 75 changer transitions 0/548 dead transitions. [2024-11-10 14:30:42,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 548 transitions, 1492 flow [2024-11-10 14:30:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:42,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:42,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2510 transitions. [2024-11-10 14:30:42,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8537414965986394 [2024-11-10 14:30:42,865 INFO L175 Difference]: Start difference. First operand has 479 places, 471 transitions, 990 flow. Second operand 6 states and 2510 transitions. [2024-11-10 14:30:42,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 548 transitions, 1492 flow [2024-11-10 14:30:42,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 548 transitions, 1486 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:30:42,878 INFO L231 Difference]: Finished difference. Result has 487 places, 539 transitions, 1464 flow [2024-11-10 14:30:42,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1464, PETRI_PLACES=487, PETRI_TRANSITIONS=539} [2024-11-10 14:30:42,880 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, -1 predicate places. [2024-11-10 14:30:42,880 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 539 transitions, 1464 flow [2024-11-10 14:30:42,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 396.3333333333333) internal successors, (2378), 6 states have internal predecessors, (2378), 0 states have call successors, (0), 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 14:30:42,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:42,882 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:42,900 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 14:30:43,086 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,SelfDestructingSolverStorable9 [2024-11-10 14:30:43,087 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:43,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1749390674, now seen corresponding path program 1 times [2024-11-10 14:30:43,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:43,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283171978] [2024-11-10 14:30:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:43,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:43,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:43,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283171978] [2024-11-10 14:30:43,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283171978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:43,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66631415] [2024-11-10 14:30:43,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:43,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:43,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:43,838 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 14:30:43,839 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 14:30:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:44,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:30:44,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:44,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:30:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:45,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66631415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:30:45,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:30:45,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:30:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421511985] [2024-11-10 14:30:45,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:30:45,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:30:45,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:45,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:30:45,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:30:45,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 490 [2024-11-10 14:30:45,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 539 transitions, 1464 flow. Second operand has 18 states, 18 states have (on average 473.8888888888889) internal successors, (8530), 18 states have internal predecessors, (8530), 0 states have call successors, (0), 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 14:30:45,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:45,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 490 [2024-11-10 14:30:45,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:46,040 INFO L124 PetriNetUnfolderBase]: 180/2230 cut-off events. [2024-11-10 14:30:46,040 INFO L125 PetriNetUnfolderBase]: For 217/224 co-relation queries the response was YES. [2024-11-10 14:30:46,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2995 conditions, 2230 events. 180/2230 cut-off events. For 217/224 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7511 event pairs, 23 based on Foata normal form. 4/2147 useless extension candidates. Maximal degree in co-relation 2091. Up to 208 conditions per place. [2024-11-10 14:30:46,051 INFO L140 encePairwiseOnDemand]: 484/490 looper letters, 19 selfloop transitions, 21 changer transitions 0/557 dead transitions. [2024-11-10 14:30:46,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 557 transitions, 1632 flow [2024-11-10 14:30:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:30:46,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:30:46,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9955 transitions. [2024-11-10 14:30:46,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.967444120505345 [2024-11-10 14:30:46,067 INFO L175 Difference]: Start difference. First operand has 487 places, 539 transitions, 1464 flow. Second operand 21 states and 9955 transitions. [2024-11-10 14:30:46,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 557 transitions, 1632 flow [2024-11-10 14:30:46,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 557 transitions, 1632 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:30:46,079 INFO L231 Difference]: Finished difference. Result has 512 places, 552 transitions, 1594 flow [2024-11-10 14:30:46,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=1464, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1594, PETRI_PLACES=512, PETRI_TRANSITIONS=552} [2024-11-10 14:30:46,080 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, 24 predicate places. [2024-11-10 14:30:46,081 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 552 transitions, 1594 flow [2024-11-10 14:30:46,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 473.8888888888889) internal successors, (8530), 18 states have internal predecessors, (8530), 0 states have call successors, (0), 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 14:30:46,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:46,085 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:46,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 14:30:46,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:46,286 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:46,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:46,287 INFO L85 PathProgramCache]: Analyzing trace with hash -184369902, now seen corresponding path program 2 times [2024-11-10 14:30:46,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:46,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929467029] [2024-11-10 14:30:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:48,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:48,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929467029] [2024-11-10 14:30:48,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929467029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:48,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845958088] [2024-11-10 14:30:48,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:30:48,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:48,163 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 14:30:48,163 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 14:30:48,695 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:30:48,696 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:30:48,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 14:30:48,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:48,740 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 15 treesize of output 11 [2024-11-10 14:30:48,758 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 28 treesize of output 27 [2024-11-10 14:30:48,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:48,784 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 40 treesize of output 42 [2024-11-10 14:30:48,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:48,818 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 52 treesize of output 57 [2024-11-10 14:30:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2024-11-10 14:30:48,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:30:48,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845958088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:48,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:30:48,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:30:48,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316364465] [2024-11-10 14:30:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:48,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:48,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:48,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:30:49,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 490 [2024-11-10 14:30:49,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 552 transitions, 1594 flow. Second operand has 6 states, 6 states have (on average 405.0) internal successors, (2430), 6 states have internal predecessors, (2430), 0 states have call successors, (0), 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 14:30:49,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:49,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 490 [2024-11-10 14:30:49,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:50,373 INFO L124 PetriNetUnfolderBase]: 227/2383 cut-off events. [2024-11-10 14:30:50,373 INFO L125 PetriNetUnfolderBase]: For 447/489 co-relation queries the response was YES. [2024-11-10 14:30:50,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3713 conditions, 2383 events. 227/2383 cut-off events. For 447/489 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8611 event pairs, 55 based on Foata normal form. 0/2269 useless extension candidates. Maximal degree in co-relation 2604. Up to 572 conditions per place. [2024-11-10 14:30:50,384 INFO L140 encePairwiseOnDemand]: 484/490 looper letters, 150 selfloop transitions, 5 changer transitions 0/551 dead transitions. [2024-11-10 14:30:50,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 551 transitions, 1902 flow [2024-11-10 14:30:50,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:50,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2461 transitions. [2024-11-10 14:30:50,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8370748299319728 [2024-11-10 14:30:50,391 INFO L175 Difference]: Start difference. First operand has 512 places, 552 transitions, 1594 flow. Second operand 6 states and 2461 transitions. [2024-11-10 14:30:50,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 551 transitions, 1902 flow [2024-11-10 14:30:50,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 551 transitions, 1878 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:30:50,406 INFO L231 Difference]: Finished difference. Result has 510 places, 551 transitions, 1578 flow [2024-11-10 14:30:50,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=1568, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1578, PETRI_PLACES=510, PETRI_TRANSITIONS=551} [2024-11-10 14:30:50,408 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, 22 predicate places. [2024-11-10 14:30:50,408 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 551 transitions, 1578 flow [2024-11-10 14:30:50,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 405.0) internal successors, (2430), 6 states have internal predecessors, (2430), 0 states have call successors, (0), 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 14:30:50,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:50,410 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:50,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:30:50,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:50,611 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:50,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:50,612 INFO L85 PathProgramCache]: Analyzing trace with hash 350176369, now seen corresponding path program 1 times [2024-11-10 14:30:50,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:50,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872814296] [2024-11-10 14:30:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:50,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:52,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:52,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872814296] [2024-11-10 14:30:52,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872814296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:52,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298190068] [2024-11-10 14:30:52,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:52,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:52,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:52,432 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 14:30:52,433 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 14:30:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:53,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 3796 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:30:53,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:54,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:54,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:30:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:54,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298190068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:30:54,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:30:54,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:30:54,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542942388] [2024-11-10 14:30:54,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:30:54,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:30:54,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:54,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:30:54,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:30:55,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 490 [2024-11-10 14:30:55,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 551 transitions, 1578 flow. Second operand has 23 states, 23 states have (on average 474.0869565217391) internal successors, (10904), 23 states have internal predecessors, (10904), 0 states have call successors, (0), 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 14:30:55,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:55,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 490 [2024-11-10 14:30:55,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:56,019 INFO L124 PetriNetUnfolderBase]: 180/2550 cut-off events. [2024-11-10 14:30:56,020 INFO L125 PetriNetUnfolderBase]: For 372/379 co-relation queries the response was YES. [2024-11-10 14:30:56,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3396 conditions, 2550 events. 180/2550 cut-off events. For 372/379 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7468 event pairs, 23 based on Foata normal form. 3/2467 useless extension candidates. Maximal degree in co-relation 2102. Up to 208 conditions per place. [2024-11-10 14:30:56,032 INFO L140 encePairwiseOnDemand]: 484/490 looper letters, 22 selfloop transitions, 30 changer transitions 0/568 dead transitions. [2024-11-10 14:30:56,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 568 transitions, 1804 flow [2024-11-10 14:30:56,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:30:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:30:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 14214 transitions. [2024-11-10 14:30:56,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9669387755102041 [2024-11-10 14:30:56,045 INFO L175 Difference]: Start difference. First operand has 510 places, 551 transitions, 1578 flow. Second operand 30 states and 14214 transitions. [2024-11-10 14:30:56,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 568 transitions, 1804 flow [2024-11-10 14:30:56,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 568 transitions, 1794 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:56,058 INFO L231 Difference]: Finished difference. Result has 538 places, 561 transitions, 1720 flow [2024-11-10 14:30:56,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=1568, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1720, PETRI_PLACES=538, PETRI_TRANSITIONS=561} [2024-11-10 14:30:56,060 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, 50 predicate places. [2024-11-10 14:30:56,060 INFO L471 AbstractCegarLoop]: Abstraction has has 538 places, 561 transitions, 1720 flow [2024-11-10 14:30:56,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 474.0869565217391) internal successors, (10904), 23 states have internal predecessors, (10904), 0 states have call successors, (0), 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 14:30:56,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:56,064 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:56,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 14:30:56,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-10 14:30:56,265 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:30:56,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:56,266 INFO L85 PathProgramCache]: Analyzing trace with hash -170317548, now seen corresponding path program 2 times [2024-11-10 14:30:56,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:56,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120548354] [2024-11-10 14:30:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:56,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2024-11-10 14:31:00,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:00,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120548354] [2024-11-10 14:31:00,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120548354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:00,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:00,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:00,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21368247] [2024-11-10 14:31:00,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:00,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:00,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:00,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:00,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:00,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 490 [2024-11-10 14:31:00,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 561 transitions, 1720 flow. Second operand has 6 states, 6 states have (on average 406.5) internal successors, (2439), 6 states have internal predecessors, (2439), 0 states have call successors, (0), 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 14:31:00,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:00,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 490 [2024-11-10 14:31:00,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:01,861 INFO L124 PetriNetUnfolderBase]: 545/3619 cut-off events. [2024-11-10 14:31:01,862 INFO L125 PetriNetUnfolderBase]: For 947/1031 co-relation queries the response was YES. [2024-11-10 14:31:01,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6137 conditions, 3619 events. 545/3619 cut-off events. For 947/1031 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16119 event pairs, 93 based on Foata normal form. 16/3470 useless extension candidates. Maximal degree in co-relation 4562. Up to 1097 conditions per place. [2024-11-10 14:31:01,873 INFO L140 encePairwiseOnDemand]: 467/490 looper letters, 163 selfloop transitions, 130 changer transitions 0/698 dead transitions. [2024-11-10 14:31:01,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 698 transitions, 2956 flow [2024-11-10 14:31:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:01,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2539 transitions. [2024-11-10 14:31:01,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8636054421768707 [2024-11-10 14:31:01,876 INFO L175 Difference]: Start difference. First operand has 538 places, 561 transitions, 1720 flow. Second operand 6 states and 2539 transitions. [2024-11-10 14:31:01,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 698 transitions, 2956 flow [2024-11-10 14:31:01,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 698 transitions, 2910 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-10 14:31:01,893 INFO L231 Difference]: Finished difference. Result has 530 places, 690 transitions, 2902 flow [2024-11-10 14:31:01,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=1674, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2902, PETRI_PLACES=530, PETRI_TRANSITIONS=690} [2024-11-10 14:31:01,895 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, 42 predicate places. [2024-11-10 14:31:01,895 INFO L471 AbstractCegarLoop]: Abstraction has has 530 places, 690 transitions, 2902 flow [2024-11-10 14:31:01,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 406.5) internal successors, (2439), 6 states have internal predecessors, (2439), 0 states have call successors, (0), 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 14:31:01,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:01,896 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:31:01,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:31:01,897 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:31:01,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2106788279, now seen corresponding path program 1 times [2024-11-10 14:31:01,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:01,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302353187] [2024-11-10 14:31:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2024-11-10 14:31:05,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:05,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302353187] [2024-11-10 14:31:05,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302353187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:05,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:05,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:05,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827185247] [2024-11-10 14:31:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:05,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:05,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:05,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:05,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:05,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 490 [2024-11-10 14:31:05,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 690 transitions, 2902 flow. Second operand has 6 states, 6 states have (on average 405.0) internal successors, (2430), 6 states have internal predecessors, (2430), 0 states have call successors, (0), 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 14:31:05,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:05,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 490 [2024-11-10 14:31:05,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:07,186 INFO L124 PetriNetUnfolderBase]: 821/4361 cut-off events. [2024-11-10 14:31:07,186 INFO L125 PetriNetUnfolderBase]: For 3339/3564 co-relation queries the response was YES. [2024-11-10 14:31:07,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8957 conditions, 4361 events. 821/4361 cut-off events. For 3339/3564 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22261 event pairs, 65 based on Foata normal form. 52/4248 useless extension candidates. Maximal degree in co-relation 7399. Up to 1357 conditions per place. [2024-11-10 14:31:07,209 INFO L140 encePairwiseOnDemand]: 467/490 looper letters, 285 selfloop transitions, 131 changer transitions 5/828 dead transitions. [2024-11-10 14:31:07,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 828 transitions, 4644 flow [2024-11-10 14:31:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:07,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2530 transitions. [2024-11-10 14:31:07,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8605442176870748 [2024-11-10 14:31:07,213 INFO L175 Difference]: Start difference. First operand has 530 places, 690 transitions, 2902 flow. Second operand 6 states and 2530 transitions. [2024-11-10 14:31:07,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 828 transitions, 4644 flow [2024-11-10 14:31:07,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 828 transitions, 4644 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:31:07,239 INFO L231 Difference]: Finished difference. Result has 540 places, 818 transitions, 4382 flow [2024-11-10 14:31:07,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=2902, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4382, PETRI_PLACES=540, PETRI_TRANSITIONS=818} [2024-11-10 14:31:07,240 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, 52 predicate places. [2024-11-10 14:31:07,240 INFO L471 AbstractCegarLoop]: Abstraction has has 540 places, 818 transitions, 4382 flow [2024-11-10 14:31:07,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 405.0) internal successors, (2430), 6 states have internal predecessors, (2430), 0 states have call successors, (0), 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 14:31:07,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:07,242 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:31:07,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:31:07,242 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:31:07,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:07,243 INFO L85 PathProgramCache]: Analyzing trace with hash 407710454, now seen corresponding path program 1 times [2024-11-10 14:31:07,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:07,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769779970] [2024-11-10 14:31:07,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:07,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2024-11-10 14:31:10,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:10,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769779970] [2024-11-10 14:31:10,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769779970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:10,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:10,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:10,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307014675] [2024-11-10 14:31:10,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:10,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:10,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:10,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:10,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:11,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 490 [2024-11-10 14:31:11,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 818 transitions, 4382 flow. Second operand has 6 states, 6 states have (on average 373.6666666666667) internal successors, (2242), 6 states have internal predecessors, (2242), 0 states have call successors, (0), 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 14:31:11,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:11,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 490 [2024-11-10 14:31:11,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:13,221 INFO L124 PetriNetUnfolderBase]: 1308/5714 cut-off events. [2024-11-10 14:31:13,221 INFO L125 PetriNetUnfolderBase]: For 4896/4953 co-relation queries the response was YES. [2024-11-10 14:31:13,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13651 conditions, 5714 events. 1308/5714 cut-off events. For 4896/4953 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33793 event pairs, 369 based on Foata normal form. 11/5480 useless extension candidates. Maximal degree in co-relation 12009. Up to 2597 conditions per place. [2024-11-10 14:31:13,253 INFO L140 encePairwiseOnDemand]: 471/490 looper letters, 364 selfloop transitions, 84 changer transitions 0/897 dead transitions. [2024-11-10 14:31:13,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 897 transitions, 5676 flow [2024-11-10 14:31:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2338 transitions. [2024-11-10 14:31:13,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7952380952380952 [2024-11-10 14:31:13,256 INFO L175 Difference]: Start difference. First operand has 540 places, 818 transitions, 4382 flow. Second operand 6 states and 2338 transitions. [2024-11-10 14:31:13,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 897 transitions, 5676 flow [2024-11-10 14:31:13,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 897 transitions, 5422 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-10 14:31:13,291 INFO L231 Difference]: Finished difference. Result has 549 places, 889 transitions, 4918 flow [2024-11-10 14:31:13,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=4134, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=770, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4918, PETRI_PLACES=549, PETRI_TRANSITIONS=889} [2024-11-10 14:31:13,292 INFO L277 CegarLoopForPetriNet]: 488 programPoint places, 61 predicate places. [2024-11-10 14:31:13,292 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 889 transitions, 4918 flow [2024-11-10 14:31:13,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 373.6666666666667) internal successors, (2242), 6 states have internal predecessors, (2242), 0 states have call successors, (0), 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 14:31:13,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:13,294 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:31:13,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:31:13,294 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-10 14:31:13,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash 321641583, now seen corresponding path program 1 times [2024-11-10 14:31:13,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:13,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720758054] [2024-11-10 14:31:13,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:13,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat