./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d 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_12-arraycollapse_rc.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 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:36:57,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:36:57,705 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:36:57,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:36:57,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:36:57,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:36:57,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:36:57,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:36:57,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:36:57,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:36:57,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:36:57,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:36:57,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:36:57,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:36:57,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:36:57,765 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:36:57,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:36:57,766 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:36:57,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:36:57,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:36:57,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:36:57,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:36:57,770 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:36:57,771 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:36:57,771 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:36:57,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:36:57,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:36:57,772 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:36:57,772 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:36:57,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:36:57,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:36:57,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:36:57,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:36:57,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:36:57,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:36:57,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:36:57,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:36:57,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:36:57,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:36:57,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:36:57,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:36:57,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2024-11-16 23:36:58,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:36:58,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:36:58,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:36:58,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:36:58,086 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:36:58,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-11-16 23:36:59,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:36:59,775 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:36:59,776 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-11-16 23:36:59,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c2e57b5/2769ecc35eee4d0e9f5605f24a7e7c50/FLAG046fc36f0 [2024-11-16 23:37:00,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c2e57b5/2769ecc35eee4d0e9f5605f24a7e7c50 [2024-11-16 23:37:00,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:37:00,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:37:00,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:37:00,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:37:00,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:37:00,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:37:00" (1/1) ... [2024-11-16 23:37:00,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f551f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:00, skipping insertion in model container [2024-11-16 23:37:00,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:37:00" (1/1) ... [2024-11-16 23:37:00,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:37:00,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:37:00,874 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:37:00,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:37:01,035 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:37:01,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01 WrapperNode [2024-11-16 23:37:01,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:37:01,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:37:01,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:37:01,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:37:01,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,126 INFO L138 Inliner]: procedures = 372, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 391 [2024-11-16 23:37:01,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:37:01,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:37:01,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:37:01,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:37:01,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,184 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:37:01,209 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:37:01,209 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:37:01,210 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:37:01,212 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (1/1) ... [2024-11-16 23:37:01,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:37:01,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:37:01,251 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) [2024-11-16 23:37:01,258 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 [2024-11-16 23:37:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:37:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-16 23:37:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:37:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:37:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:37:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:37:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:37:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:37:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:37:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:37:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:37:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:37:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:37:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:37:01,308 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:37:01,488 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:37:01,490 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:37:02,345 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:37:02,345 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:37:02,399 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:37:02,399 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:37:02,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:37:02 BoogieIcfgContainer [2024-11-16 23:37:02,400 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:37:02,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:37:02,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:37:02,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:37:02,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:37:00" (1/3) ... [2024-11-16 23:37:02,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330cb5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:37:02, skipping insertion in model container [2024-11-16 23:37:02,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:01" (2/3) ... [2024-11-16 23:37:02,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330cb5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:37:02, skipping insertion in model container [2024-11-16 23:37:02,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:37:02" (3/3) ... [2024-11-16 23:37:02,407 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2024-11-16 23:37:02,424 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:37:02,424 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-16 23:37:02,424 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:37:02,523 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:37:02,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 459 transitions, 922 flow [2024-11-16 23:37:02,792 INFO L124 PetriNetUnfolderBase]: 5/458 cut-off events. [2024-11-16 23:37:02,793 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:37:02,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 458 events. 5/458 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 393 event pairs, 0 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 330. Up to 2 conditions per place. [2024-11-16 23:37:02,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 459 transitions, 922 flow [2024-11-16 23:37:02,819 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 457 places, 458 transitions, 919 flow [2024-11-16 23:37:02,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:37:02,843 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;@732ba16b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:37:02,843 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-16 23:37:02,870 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:37:02,871 INFO L124 PetriNetUnfolderBase]: 2/105 cut-off events. [2024-11-16 23:37:02,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:37:02,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:02,872 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] [2024-11-16 23:37:02,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:02,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:02,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2027599630, now seen corresponding path program 1 times [2024-11-16 23:37:02,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:02,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629990026] [2024-11-16 23:37:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:02,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:03,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:03,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629990026] [2024-11-16 23:37:03,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629990026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:03,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:03,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:03,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084457544] [2024-11-16 23:37:03,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:03,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:03,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:03,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:03,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:05,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 459 [2024-11-16 23:37:05,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 458 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 330.3333333333333) internal successors, (1982), 6 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:05,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:05,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 459 [2024-11-16 23:37:05,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:05,455 INFO L124 PetriNetUnfolderBase]: 365/1813 cut-off events. [2024-11-16 23:37:05,455 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:37:05,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 1813 events. 365/1813 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9555 event pairs, 364 based on Foata normal form. 14/1690 useless extension candidates. Maximal degree in co-relation 2256. Up to 837 conditions per place. [2024-11-16 23:37:05,474 INFO L140 encePairwiseOnDemand]: 437/459 looper letters, 108 selfloop transitions, 15 changer transitions 2/451 dead transitions. [2024-11-16 23:37:05,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 451 transitions, 1151 flow [2024-11-16 23:37:05,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2104 transitions. [2024-11-16 23:37:05,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7639796659404503 [2024-11-16 23:37:05,505 INFO L175 Difference]: Start difference. First operand has 457 places, 458 transitions, 919 flow. Second operand 6 states and 2104 transitions. [2024-11-16 23:37:05,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 451 transitions, 1151 flow [2024-11-16 23:37:05,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 451 transitions, 1150 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:37:05,525 INFO L231 Difference]: Finished difference. Result has 458 places, 449 transitions, 930 flow [2024-11-16 23:37:05,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=930, PETRI_PLACES=458, PETRI_TRANSITIONS=449} [2024-11-16 23:37:05,531 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 1 predicate places. [2024-11-16 23:37:05,534 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 449 transitions, 930 flow [2024-11-16 23:37:05,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 330.3333333333333) internal successors, (1982), 6 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:05,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:05,537 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] [2024-11-16 23:37:05,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:37:05,538 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:05,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash -714509720, now seen corresponding path program 1 times [2024-11-16 23:37:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286966098] [2024-11-16 23:37:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:05,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:06,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:06,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286966098] [2024-11-16 23:37:06,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286966098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:06,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:06,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:06,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885974994] [2024-11-16 23:37:06,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:06,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:06,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:06,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:06,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 459 [2024-11-16 23:37:06,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 449 transitions, 930 flow. Second operand has 6 states, 6 states have (on average 330.3333333333333) internal successors, (1982), 6 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:06,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:06,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 459 [2024-11-16 23:37:06,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:07,307 INFO L124 PetriNetUnfolderBase]: 365/1808 cut-off events. [2024-11-16 23:37:07,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:37:07,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1808 events. 365/1808 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9490 event pairs, 364 based on Foata normal form. 0/1676 useless extension candidates. Maximal degree in co-relation 2399. Up to 837 conditions per place. [2024-11-16 23:37:07,318 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 108 selfloop transitions, 15 changer transitions 0/446 dead transitions. [2024-11-16 23:37:07,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 446 transitions, 1170 flow [2024-11-16 23:37:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:07,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2100 transitions. [2024-11-16 23:37:07,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7625272331154684 [2024-11-16 23:37:07,323 INFO L175 Difference]: Start difference. First operand has 458 places, 449 transitions, 930 flow. Second operand 6 states and 2100 transitions. [2024-11-16 23:37:07,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 446 transitions, 1170 flow [2024-11-16 23:37:07,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 446 transitions, 1140 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:07,331 INFO L231 Difference]: Finished difference. Result has 453 places, 446 transitions, 924 flow [2024-11-16 23:37:07,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=924, PETRI_PLACES=453, PETRI_TRANSITIONS=446} [2024-11-16 23:37:07,333 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -4 predicate places. [2024-11-16 23:37:07,333 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 446 transitions, 924 flow [2024-11-16 23:37:07,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 330.3333333333333) internal successors, (1982), 6 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:07,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:07,336 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] [2024-11-16 23:37:07,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:37:07,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:07,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:07,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1382299201, now seen corresponding path program 1 times [2024-11-16 23:37:07,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:07,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284431152] [2024-11-16 23:37:07,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:07,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:07,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:07,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284431152] [2024-11-16 23:37:07,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284431152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:07,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:07,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38788416] [2024-11-16 23:37:07,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:07,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:07,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:07,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:08,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 459 [2024-11-16 23:37:08,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 446 transitions, 924 flow. Second operand has 6 states, 6 states have (on average 329.8333333333333) internal successors, (1979), 6 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:08,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:08,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 459 [2024-11-16 23:37:08,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:09,028 INFO L124 PetriNetUnfolderBase]: 391/1896 cut-off events. [2024-11-16 23:37:09,029 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 23:37:09,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 1896 events. 391/1896 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10199 event pairs, 390 based on Foata normal form. 0/1759 useless extension candidates. Maximal degree in co-relation 2525. Up to 903 conditions per place. [2024-11-16 23:37:09,036 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 122 selfloop transitions, 5 changer transitions 0/445 dead transitions. [2024-11-16 23:37:09,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 445 transitions, 1176 flow [2024-11-16 23:37:09,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2090 transitions. [2024-11-16 23:37:09,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7588961510530138 [2024-11-16 23:37:09,041 INFO L175 Difference]: Start difference. First operand has 453 places, 446 transitions, 924 flow. Second operand 6 states and 2090 transitions. [2024-11-16 23:37:09,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 445 transitions, 1176 flow [2024-11-16 23:37:09,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 445 transitions, 1146 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:09,049 INFO L231 Difference]: Finished difference. Result has 452 places, 445 transitions, 902 flow [2024-11-16 23:37:09,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=902, PETRI_PLACES=452, PETRI_TRANSITIONS=445} [2024-11-16 23:37:09,051 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -5 predicate places. [2024-11-16 23:37:09,051 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 445 transitions, 902 flow [2024-11-16 23:37:09,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.8333333333333) internal successors, (1979), 6 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:09,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:09,053 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] [2024-11-16 23:37:09,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:37:09,054 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:09,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:09,055 INFO L85 PathProgramCache]: Analyzing trace with hash 659819136, now seen corresponding path program 1 times [2024-11-16 23:37:09,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:09,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433726489] [2024-11-16 23:37:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:09,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:09,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:09,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433726489] [2024-11-16 23:37:09,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433726489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:09,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:09,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:37:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398345852] [2024-11-16 23:37:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:09,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:37:09,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:09,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:37:09,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:37:09,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 459 [2024-11-16 23:37:09,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 445 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:09,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:09,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 459 [2024-11-16 23:37:09,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:09,274 INFO L124 PetriNetUnfolderBase]: 7/631 cut-off events. [2024-11-16 23:37:09,275 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:37:09,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670 conditions, 631 events. 7/631 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 646 event pairs, 6 based on Foata normal form. 1/596 useless extension candidates. Maximal degree in co-relation 468. Up to 24 conditions per place. [2024-11-16 23:37:09,278 INFO L140 encePairwiseOnDemand]: 456/459 looper letters, 10 selfloop transitions, 2 changer transitions 0/446 dead transitions. [2024-11-16 23:37:09,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 446 transitions, 928 flow [2024-11-16 23:37:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:37:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:37:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1345 transitions. [2024-11-16 23:37:09,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9767610748002905 [2024-11-16 23:37:09,281 INFO L175 Difference]: Start difference. First operand has 452 places, 445 transitions, 902 flow. Second operand 3 states and 1345 transitions. [2024-11-16 23:37:09,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 446 transitions, 928 flow [2024-11-16 23:37:09,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 446 transitions, 918 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:09,293 INFO L231 Difference]: Finished difference. Result has 450 places, 446 transitions, 904 flow [2024-11-16 23:37:09,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=450, PETRI_TRANSITIONS=446} [2024-11-16 23:37:09,295 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -7 predicate places. [2024-11-16 23:37:09,295 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 446 transitions, 904 flow [2024-11-16 23:37:09,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:09,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:09,298 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] [2024-11-16 23:37:09,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:37:09,298 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:09,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:09,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1991182380, now seen corresponding path program 1 times [2024-11-16 23:37:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:09,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497007517] [2024-11-16 23:37:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:09,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:09,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497007517] [2024-11-16 23:37:09,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497007517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:09,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:09,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507864867] [2024-11-16 23:37:09,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:09,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:09,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:09,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:10,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 459 [2024-11-16 23:37:10,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 446 transitions, 904 flow. Second operand has 6 states, 6 states have (on average 373.8333333333333) internal successors, (2243), 6 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:10,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:10,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 459 [2024-11-16 23:37:10,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:11,086 INFO L124 PetriNetUnfolderBase]: 55/872 cut-off events. [2024-11-16 23:37:11,086 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 23:37:11,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 872 events. 55/872 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2247 event pairs, 54 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 888. Up to 219 conditions per place. [2024-11-16 23:37:11,089 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 81 selfloop transitions, 5 changer transitions 0/445 dead transitions. [2024-11-16 23:37:11,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 445 transitions, 1074 flow [2024-11-16 23:37:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:11,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:11,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2300 transitions. [2024-11-16 23:37:11,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8351488743645606 [2024-11-16 23:37:11,095 INFO L175 Difference]: Start difference. First operand has 450 places, 446 transitions, 904 flow. Second operand 6 states and 2300 transitions. [2024-11-16 23:37:11,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 445 transitions, 1074 flow [2024-11-16 23:37:11,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 445 transitions, 1072 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:37:11,102 INFO L231 Difference]: Finished difference. Result has 453 places, 445 transitions, 910 flow [2024-11-16 23:37:11,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=910, PETRI_PLACES=453, PETRI_TRANSITIONS=445} [2024-11-16 23:37:11,105 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -4 predicate places. [2024-11-16 23:37:11,106 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 445 transitions, 910 flow [2024-11-16 23:37:11,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 373.8333333333333) internal successors, (2243), 6 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:11,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:11,109 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] [2024-11-16 23:37:11,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:37:11,109 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:11,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash 776892141, now seen corresponding path program 1 times [2024-11-16 23:37:11,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:11,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460641424] [2024-11-16 23:37:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:11,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:11,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:11,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460641424] [2024-11-16 23:37:11,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460641424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:11,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:11,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:11,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531915204] [2024-11-16 23:37:11,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:11,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:11,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:11,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:11,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:12,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 459 [2024-11-16 23:37:12,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 445 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 356.5) internal successors, (2139), 6 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:12,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:12,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 459 [2024-11-16 23:37:12,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:12,662 INFO L124 PetriNetUnfolderBase]: 37/785 cut-off events. [2024-11-16 23:37:12,662 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:37:12,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 785 events. 37/785 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1747 event pairs, 36 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 756. Up to 190 conditions per place. [2024-11-16 23:37:12,666 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 85 selfloop transitions, 15 changer transitions 0/442 dead transitions. [2024-11-16 23:37:12,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 442 transitions, 1104 flow [2024-11-16 23:37:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:12,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2215 transitions. [2024-11-16 23:37:12,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8042846768336964 [2024-11-16 23:37:12,670 INFO L175 Difference]: Start difference. First operand has 453 places, 445 transitions, 910 flow. Second operand 6 states and 2215 transitions. [2024-11-16 23:37:12,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 442 transitions, 1104 flow [2024-11-16 23:37:12,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 442 transitions, 1094 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:12,718 INFO L231 Difference]: Finished difference. Result has 450 places, 442 transitions, 924 flow [2024-11-16 23:37:12,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=924, PETRI_PLACES=450, PETRI_TRANSITIONS=442} [2024-11-16 23:37:12,719 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -7 predicate places. [2024-11-16 23:37:12,719 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 442 transitions, 924 flow [2024-11-16 23:37:12,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.5) internal successors, (2139), 6 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:12,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:12,721 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] [2024-11-16 23:37:12,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:37:12,722 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:12,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1321712800, now seen corresponding path program 1 times [2024-11-16 23:37:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:12,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089188141] [2024-11-16 23:37:12,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:12,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:13,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:13,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089188141] [2024-11-16 23:37:13,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089188141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:13,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:13,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:13,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686089579] [2024-11-16 23:37:13,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:13,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:13,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:13,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:13,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:13,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 459 [2024-11-16 23:37:13,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 442 transitions, 924 flow. Second operand has 6 states, 6 states have (on average 320.1666666666667) internal successors, (1921), 6 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:13,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:13,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 459 [2024-11-16 23:37:13,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:14,117 INFO L124 PetriNetUnfolderBase]: 365/1907 cut-off events. [2024-11-16 23:37:14,118 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:37:14,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2846 conditions, 1907 events. 365/1907 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9439 event pairs, 364 based on Foata normal form. 0/1783 useless extension candidates. Maximal degree in co-relation 2457. Up to 890 conditions per place. [2024-11-16 23:37:14,126 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 123 selfloop transitions, 15 changer transitions 0/439 dead transitions. [2024-11-16 23:37:14,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 439 transitions, 1194 flow [2024-11-16 23:37:14,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:14,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:14,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2025 transitions. [2024-11-16 23:37:14,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7352941176470589 [2024-11-16 23:37:14,133 INFO L175 Difference]: Start difference. First operand has 450 places, 442 transitions, 924 flow. Second operand 6 states and 2025 transitions. [2024-11-16 23:37:14,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 439 transitions, 1194 flow [2024-11-16 23:37:14,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 439 transitions, 1164 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:14,142 INFO L231 Difference]: Finished difference. Result has 447 places, 439 transitions, 918 flow [2024-11-16 23:37:14,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=447, PETRI_TRANSITIONS=439} [2024-11-16 23:37:14,144 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -10 predicate places. [2024-11-16 23:37:14,145 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 439 transitions, 918 flow [2024-11-16 23:37:14,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.1666666666667) internal successors, (1921), 6 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:14,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:14,147 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] [2024-11-16 23:37:14,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:37:14,148 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:14,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:14,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1091185417, now seen corresponding path program 1 times [2024-11-16 23:37:14,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:14,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654018095] [2024-11-16 23:37:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:14,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:14,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:14,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:14,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654018095] [2024-11-16 23:37:14,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654018095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:14,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:14,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:14,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085667999] [2024-11-16 23:37:14,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:14,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:14,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:14,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:14,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:15,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 459 [2024-11-16 23:37:15,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 439 transitions, 918 flow. Second operand has 6 states, 6 states have (on average 323.6666666666667) internal successors, (1942), 6 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:15,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:15,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 459 [2024-11-16 23:37:15,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:15,500 INFO L124 PetriNetUnfolderBase]: 365/1903 cut-off events. [2024-11-16 23:37:15,500 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:37:15,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2838 conditions, 1903 events. 365/1903 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9466 event pairs, 364 based on Foata normal form. 0/1783 useless extension candidates. Maximal degree in co-relation 2453. Up to 886 conditions per place. [2024-11-16 23:37:15,507 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 120 selfloop transitions, 15 changer transitions 0/436 dead transitions. [2024-11-16 23:37:15,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 436 transitions, 1182 flow [2024-11-16 23:37:15,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2040 transitions. [2024-11-16 23:37:15,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-11-16 23:37:15,512 INFO L175 Difference]: Start difference. First operand has 447 places, 439 transitions, 918 flow. Second operand 6 states and 2040 transitions. [2024-11-16 23:37:15,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 436 transitions, 1182 flow [2024-11-16 23:37:15,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 436 transitions, 1152 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:15,520 INFO L231 Difference]: Finished difference. Result has 444 places, 436 transitions, 912 flow [2024-11-16 23:37:15,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=444, PETRI_TRANSITIONS=436} [2024-11-16 23:37:15,523 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -13 predicate places. [2024-11-16 23:37:15,523 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 436 transitions, 912 flow [2024-11-16 23:37:15,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.6666666666667) internal successors, (1942), 6 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:15,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:15,525 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] [2024-11-16 23:37:15,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:37:15,526 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:15,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:15,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1800511806, now seen corresponding path program 1 times [2024-11-16 23:37:15,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:15,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269199273] [2024-11-16 23:37:15,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:15,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:15,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:15,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269199273] [2024-11-16 23:37:15,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269199273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:37:15,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69583686] [2024-11-16 23:37:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:15,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:37:15,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:37:15,780 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) [2024-11-16 23:37:15,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:37:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:16,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:37:16,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:37:16,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:16,222 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:37:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:16,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69583686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:37:16,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:37:16,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:37:16,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996572514] [2024-11-16 23:37:16,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:37:16,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:37:16,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:37:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:37:16,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 459 [2024-11-16 23:37:16,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 436 transitions, 912 flow. Second operand has 10 states, 10 states have (on average 442.8) internal successors, (4428), 10 states have internal predecessors, (4428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:16,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:16,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 459 [2024-11-16 23:37:16,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:16,771 INFO L124 PetriNetUnfolderBase]: 7/727 cut-off events. [2024-11-16 23:37:16,771 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 23:37:16,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 727 events. 7/727 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 396 event pairs, 6 based on Foata normal form. 2/707 useless extension candidates. Maximal degree in co-relation 365. Up to 24 conditions per place. [2024-11-16 23:37:16,774 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 14 selfloop transitions, 9 changer transitions 0/444 dead transitions. [2024-11-16 23:37:16,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 444 transitions, 976 flow [2024-11-16 23:37:16,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:37:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:37:16,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3994 transitions. [2024-11-16 23:37:16,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9668361171629145 [2024-11-16 23:37:16,786 INFO L175 Difference]: Start difference. First operand has 444 places, 436 transitions, 912 flow. Second operand 9 states and 3994 transitions. [2024-11-16 23:37:16,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 444 transitions, 976 flow [2024-11-16 23:37:16,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 444 transitions, 946 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:16,796 INFO L231 Difference]: Finished difference. Result has 450 places, 442 transitions, 932 flow [2024-11-16 23:37:16,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=932, PETRI_PLACES=450, PETRI_TRANSITIONS=442} [2024-11-16 23:37:16,798 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -7 predicate places. [2024-11-16 23:37:16,798 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 442 transitions, 932 flow [2024-11-16 23:37:16,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 442.8) internal successors, (4428), 10 states have internal predecessors, (4428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:16,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:16,802 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] [2024-11-16 23:37:16,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:37:17,002 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 [2024-11-16 23:37:17,003 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:17,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:17,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1950970878, now seen corresponding path program 2 times [2024-11-16 23:37:17,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:17,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760519056] [2024-11-16 23:37:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:17,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:17,660 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:17,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:17,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760519056] [2024-11-16 23:37:17,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760519056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:37:17,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025986373] [2024-11-16 23:37:17,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:37:17,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:37:17,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:37:17,665 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) [2024-11-16 23:37:17,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:37:17,936 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:37:17,937 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:37:17,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 23:37:17,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:37:18,005 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 [2024-11-16 23:37:18,023 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 [2024-11-16 23:37:18,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:37:18,056 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 [2024-11-16 23:37:18,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:37:18,087 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 [2024-11-16 23:37:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-16 23:37:18,115 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:37:18,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025986373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:18,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:37:18,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-16 23:37:18,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354752430] [2024-11-16 23:37:18,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:18,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:18,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:18,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:18,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:37:18,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 459 [2024-11-16 23:37:18,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 442 transitions, 932 flow. Second operand has 6 states, 6 states have (on average 373.3333333333333) internal successors, (2240), 6 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:18,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:18,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 459 [2024-11-16 23:37:18,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:19,509 INFO L124 PetriNetUnfolderBase]: 257/2033 cut-off events. [2024-11-16 23:37:19,510 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:37:19,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 2033 events. 257/2033 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10098 event pairs, 34 based on Foata normal form. 0/1906 useless extension candidates. Maximal degree in co-relation 2223. Up to 515 conditions per place. [2024-11-16 23:37:19,519 INFO L140 encePairwiseOnDemand]: 430/459 looper letters, 91 selfloop transitions, 75 changer transitions 0/519 dead transitions. [2024-11-16 23:37:19,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 519 transitions, 1418 flow [2024-11-16 23:37:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2364 transitions. [2024-11-16 23:37:19,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8583877995642701 [2024-11-16 23:37:19,525 INFO L175 Difference]: Start difference. First operand has 450 places, 442 transitions, 932 flow. Second operand 6 states and 2364 transitions. [2024-11-16 23:37:19,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 519 transitions, 1418 flow [2024-11-16 23:37:19,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 519 transitions, 1412 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-16 23:37:19,536 INFO L231 Difference]: Finished difference. Result has 458 places, 510 transitions, 1406 flow [2024-11-16 23:37:19,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=458, PETRI_TRANSITIONS=510} [2024-11-16 23:37:19,538 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 1 predicate places. [2024-11-16 23:37:19,538 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 510 transitions, 1406 flow [2024-11-16 23:37:19,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 373.3333333333333) internal successors, (2240), 6 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:19,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:19,540 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] [2024-11-16 23:37:19,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 23:37:19,743 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 [2024-11-16 23:37:19,744 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:19,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash -199614392, now seen corresponding path program 1 times [2024-11-16 23:37:19,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:19,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465453068] [2024-11-16 23:37:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:20,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465453068] [2024-11-16 23:37:20,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465453068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:37:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126673292] [2024-11-16 23:37:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:20,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:37:20,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:37:20,402 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) [2024-11-16 23:37:20,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:37:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:20,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 23:37:20,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:37:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:21,287 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:37:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:21,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126673292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:37:21,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:37:21,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-16 23:37:21,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089752336] [2024-11-16 23:37:21,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:37:21,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 23:37:21,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:21,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 23:37:21,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-16 23:37:21,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 459 [2024-11-16 23:37:21,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 510 transitions, 1406 flow. Second operand has 18 states, 18 states have (on average 442.8888888888889) internal successors, (7972), 18 states have internal predecessors, (7972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:21,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:21,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 459 [2024-11-16 23:37:21,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:22,728 INFO L124 PetriNetUnfolderBase]: 150/2157 cut-off events. [2024-11-16 23:37:22,728 INFO L125 PetriNetUnfolderBase]: For 217/237 co-relation queries the response was YES. [2024-11-16 23:37:22,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2862 conditions, 2157 events. 150/2157 cut-off events. For 217/237 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7302 event pairs, 21 based on Foata normal form. 4/2073 useless extension candidates. Maximal degree in co-relation 1958. Up to 207 conditions per place. [2024-11-16 23:37:22,734 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 19 selfloop transitions, 21 changer transitions 0/528 dead transitions. [2024-11-16 23:37:22,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 528 transitions, 1574 flow [2024-11-16 23:37:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 23:37:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-16 23:37:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9304 transitions. [2024-11-16 23:37:22,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9652453574022202 [2024-11-16 23:37:22,755 INFO L175 Difference]: Start difference. First operand has 458 places, 510 transitions, 1406 flow. Second operand 21 states and 9304 transitions. [2024-11-16 23:37:22,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 528 transitions, 1574 flow [2024-11-16 23:37:22,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 528 transitions, 1574 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:37:22,769 INFO L231 Difference]: Finished difference. Result has 483 places, 523 transitions, 1536 flow [2024-11-16 23:37:22,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1536, PETRI_PLACES=483, PETRI_TRANSITIONS=523} [2024-11-16 23:37:22,770 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 26 predicate places. [2024-11-16 23:37:22,770 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 523 transitions, 1536 flow [2024-11-16 23:37:22,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 442.8888888888889) internal successors, (7972), 18 states have internal predecessors, (7972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:22,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:22,774 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] [2024-11-16 23:37:22,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 23:37:22,974 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 [2024-11-16 23:37:22,975 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:22,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:22,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1696884024, now seen corresponding path program 2 times [2024-11-16 23:37:22,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:22,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055807717] [2024-11-16 23:37:22,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:22,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:24,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:24,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:24,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055807717] [2024-11-16 23:37:24,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055807717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:37:24,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305762654] [2024-11-16 23:37:24,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:37:24,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:37:24,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:37:24,901 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) [2024-11-16 23:37:24,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:37:25,470 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:37:25,470 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:37:25,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 23:37:25,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:37:25,517 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 [2024-11-16 23:37:25,542 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 [2024-11-16 23:37:25,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:37:25,570 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 [2024-11-16 23:37:25,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:37:25,605 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 [2024-11-16 23:37:25,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2024-11-16 23:37:25,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:37:25,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305762654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:25,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:37:25,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-16 23:37:25,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584829822] [2024-11-16 23:37:25,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:25,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:25,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:25,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:25,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 23:37:26,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 459 [2024-11-16 23:37:26,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 523 transitions, 1536 flow. Second operand has 6 states, 6 states have (on average 380.6666666666667) internal successors, (2284), 6 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:26,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:26,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 459 [2024-11-16 23:37:26,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:26,924 INFO L124 PetriNetUnfolderBase]: 212/2321 cut-off events. [2024-11-16 23:37:26,924 INFO L125 PetriNetUnfolderBase]: For 462/493 co-relation queries the response was YES. [2024-11-16 23:37:26,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3613 conditions, 2321 events. 212/2321 cut-off events. For 462/493 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9107 event pairs, 54 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 2504. Up to 564 conditions per place. [2024-11-16 23:37:26,933 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 142 selfloop transitions, 5 changer transitions 0/522 dead transitions. [2024-11-16 23:37:26,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 522 transitions, 1828 flow [2024-11-16 23:37:26,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2315 transitions. [2024-11-16 23:37:26,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8405954974582426 [2024-11-16 23:37:26,938 INFO L175 Difference]: Start difference. First operand has 483 places, 523 transitions, 1536 flow. Second operand 6 states and 2315 transitions. [2024-11-16 23:37:26,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 522 transitions, 1828 flow [2024-11-16 23:37:26,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 522 transitions, 1804 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-16 23:37:26,951 INFO L231 Difference]: Finished difference. Result has 481 places, 522 transitions, 1520 flow [2024-11-16 23:37:26,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1510, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1520, PETRI_PLACES=481, PETRI_TRANSITIONS=522} [2024-11-16 23:37:26,952 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 24 predicate places. [2024-11-16 23:37:26,952 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 522 transitions, 1520 flow [2024-11-16 23:37:26,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.6666666666667) internal successors, (2284), 6 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:26,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:26,954 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] [2024-11-16 23:37:26,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 23:37:27,155 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 [2024-11-16 23:37:27,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:27,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash -51378749, now seen corresponding path program 1 times [2024-11-16 23:37:27,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:27,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140480022] [2024-11-16 23:37:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:27,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:29,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:29,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140480022] [2024-11-16 23:37:29,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140480022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:37:29,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897886780] [2024-11-16 23:37:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:29,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:37:29,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:37:29,179 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) [2024-11-16 23:37:29,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:37:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:30,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 3682 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 23:37:30,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:37:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:30,792 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:37:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:37:31,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897886780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:37:31,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:37:31,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-16 23:37:31,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54345225] [2024-11-16 23:37:31,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:37:31,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 23:37:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 23:37:31,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-16 23:37:31,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 459 [2024-11-16 23:37:31,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 522 transitions, 1520 flow. Second operand has 23 states, 23 states have (on average 443.0869565217391) internal successors, (10191), 23 states have internal predecessors, (10191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:31,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:31,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 459 [2024-11-16 23:37:31,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:32,741 INFO L124 PetriNetUnfolderBase]: 150/2477 cut-off events. [2024-11-16 23:37:32,741 INFO L125 PetriNetUnfolderBase]: For 372/392 co-relation queries the response was YES. [2024-11-16 23:37:32,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3263 conditions, 2477 events. 150/2477 cut-off events. For 372/392 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7300 event pairs, 21 based on Foata normal form. 3/2393 useless extension candidates. Maximal degree in co-relation 1969. Up to 207 conditions per place. [2024-11-16 23:37:32,759 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 22 selfloop transitions, 30 changer transitions 0/539 dead transitions. [2024-11-16 23:37:32,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 539 transitions, 1746 flow [2024-11-16 23:37:32,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-16 23:37:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-16 23:37:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 13284 transitions. [2024-11-16 23:37:32,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9647058823529412 [2024-11-16 23:37:32,780 INFO L175 Difference]: Start difference. First operand has 481 places, 522 transitions, 1520 flow. Second operand 30 states and 13284 transitions. [2024-11-16 23:37:32,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 539 transitions, 1746 flow [2024-11-16 23:37:32,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 539 transitions, 1736 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:32,792 INFO L231 Difference]: Finished difference. Result has 509 places, 532 transitions, 1662 flow [2024-11-16 23:37:32,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1510, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1662, PETRI_PLACES=509, PETRI_TRANSITIONS=532} [2024-11-16 23:37:32,794 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 52 predicate places. [2024-11-16 23:37:32,794 INFO L471 AbstractCegarLoop]: Abstraction has has 509 places, 532 transitions, 1662 flow [2024-11-16 23:37:32,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 443.0869565217391) internal successors, (10191), 23 states have internal predecessors, (10191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:32,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:32,798 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] [2024-11-16 23:37:32,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 23:37:32,998 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 [2024-11-16 23:37:32,999 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:32,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash 279382789, now seen corresponding path program 2 times [2024-11-16 23:37:32,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:32,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934221253] [2024-11-16 23:37:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:33,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2024-11-16 23:37:36,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:36,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934221253] [2024-11-16 23:37:36,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934221253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:36,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:36,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:36,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010265811] [2024-11-16 23:37:36,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:36,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:36,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:36,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:36,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:37,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 459 [2024-11-16 23:37:37,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 532 transitions, 1662 flow. Second operand has 6 states, 6 states have (on average 382.1666666666667) internal successors, (2293), 6 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:37,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:37,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 459 [2024-11-16 23:37:37,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:38,259 INFO L124 PetriNetUnfolderBase]: 530/3546 cut-off events. [2024-11-16 23:37:38,259 INFO L125 PetriNetUnfolderBase]: For 961/1033 co-relation queries the response was YES. [2024-11-16 23:37:38,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6026 conditions, 3546 events. 530/3546 cut-off events. For 961/1033 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16101 event pairs, 92 based on Foata normal form. 16/3405 useless extension candidates. Maximal degree in co-relation 4451. Up to 1089 conditions per place. [2024-11-16 23:37:38,275 INFO L140 encePairwiseOnDemand]: 436/459 looper letters, 155 selfloop transitions, 130 changer transitions 0/669 dead transitions. [2024-11-16 23:37:38,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 669 transitions, 2882 flow [2024-11-16 23:37:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2393 transitions. [2024-11-16 23:37:38,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8689179375453885 [2024-11-16 23:37:38,277 INFO L175 Difference]: Start difference. First operand has 509 places, 532 transitions, 1662 flow. Second operand 6 states and 2393 transitions. [2024-11-16 23:37:38,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 669 transitions, 2882 flow [2024-11-16 23:37:38,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 669 transitions, 2836 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-16 23:37:38,293 INFO L231 Difference]: Finished difference. Result has 501 places, 661 transitions, 2844 flow [2024-11-16 23:37:38,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2844, PETRI_PLACES=501, PETRI_TRANSITIONS=661} [2024-11-16 23:37:38,295 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 44 predicate places. [2024-11-16 23:37:38,295 INFO L471 AbstractCegarLoop]: Abstraction has has 501 places, 661 transitions, 2844 flow [2024-11-16 23:37:38,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 382.1666666666667) internal successors, (2293), 6 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:38,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:38,296 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] [2024-11-16 23:37:38,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:37:38,297 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:38,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:38,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1414619234, now seen corresponding path program 1 times [2024-11-16 23:37:38,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:38,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185308779] [2024-11-16 23:37:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:38,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2024-11-16 23:37:41,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:41,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185308779] [2024-11-16 23:37:41,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185308779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:41,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:41,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:41,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026560293] [2024-11-16 23:37:41,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:41,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:41,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:41,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:41,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:41,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 459 [2024-11-16 23:37:41,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 661 transitions, 2844 flow. Second operand has 6 states, 6 states have (on average 381.5) internal successors, (2289), 6 states have internal predecessors, (2289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:41,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:41,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 459 [2024-11-16 23:37:41,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:43,675 INFO L124 PetriNetUnfolderBase]: 806/4317 cut-off events. [2024-11-16 23:37:43,676 INFO L125 PetriNetUnfolderBase]: For 3329/3553 co-relation queries the response was YES. [2024-11-16 23:37:43,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8889 conditions, 4317 events. 806/4317 cut-off events. For 3329/3553 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22216 event pairs, 65 based on Foata normal form. 52/4204 useless extension candidates. Maximal degree in co-relation 7331. Up to 1348 conditions per place. [2024-11-16 23:37:43,691 INFO L140 encePairwiseOnDemand]: 436/459 looper letters, 276 selfloop transitions, 131 changer transitions 5/799 dead transitions. [2024-11-16 23:37:43,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 799 transitions, 4568 flow [2024-11-16 23:37:43,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:43,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:43,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2389 transitions. [2024-11-16 23:37:43,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674655047204067 [2024-11-16 23:37:43,694 INFO L175 Difference]: Start difference. First operand has 501 places, 661 transitions, 2844 flow. Second operand 6 states and 2389 transitions. [2024-11-16 23:37:43,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 799 transitions, 4568 flow [2024-11-16 23:37:43,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 799 transitions, 4568 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:37:43,715 INFO L231 Difference]: Finished difference. Result has 511 places, 789 transitions, 4324 flow [2024-11-16 23:37:43,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=2844, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4324, PETRI_PLACES=511, PETRI_TRANSITIONS=789} [2024-11-16 23:37:43,718 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 54 predicate places. [2024-11-16 23:37:43,718 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 789 transitions, 4324 flow [2024-11-16 23:37:43,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 381.5) internal successors, (2289), 6 states have internal predecessors, (2289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:43,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:43,719 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] [2024-11-16 23:37:43,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:37:43,720 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:43,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1832173034, now seen corresponding path program 1 times [2024-11-16 23:37:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227068567] [2024-11-16 23:37:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2024-11-16 23:37:46,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:46,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227068567] [2024-11-16 23:37:46,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227068567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:46,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:46,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:46,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427151401] [2024-11-16 23:37:46,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:46,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:46,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:46,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:46,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:46,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 459 [2024-11-16 23:37:46,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 789 transitions, 4324 flow. Second operand has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:46,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:46,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 459 [2024-11-16 23:37:46,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:48,868 INFO L124 PetriNetUnfolderBase]: 1308/5685 cut-off events. [2024-11-16 23:37:48,868 INFO L125 PetriNetUnfolderBase]: For 4860/4917 co-relation queries the response was YES. [2024-11-16 23:37:48,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13614 conditions, 5685 events. 1308/5685 cut-off events. For 4860/4917 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33817 event pairs, 369 based on Foata normal form. 11/5451 useless extension candidates. Maximal degree in co-relation 11972. Up to 2589 conditions per place. [2024-11-16 23:37:48,899 INFO L140 encePairwiseOnDemand]: 440/459 looper letters, 356 selfloop transitions, 84 changer transitions 0/868 dead transitions. [2024-11-16 23:37:48,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 868 transitions, 5602 flow [2024-11-16 23:37:48,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:48,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2192 transitions. [2024-11-16 23:37:48,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7959331880900509 [2024-11-16 23:37:48,902 INFO L175 Difference]: Start difference. First operand has 511 places, 789 transitions, 4324 flow. Second operand 6 states and 2192 transitions. [2024-11-16 23:37:48,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 868 transitions, 5602 flow [2024-11-16 23:37:48,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 868 transitions, 5348 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-16 23:37:48,935 INFO L231 Difference]: Finished difference. Result has 520 places, 860 transitions, 4860 flow [2024-11-16 23:37:48,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=4076, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=789, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=741, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4860, PETRI_PLACES=520, PETRI_TRANSITIONS=860} [2024-11-16 23:37:48,937 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 63 predicate places. [2024-11-16 23:37:48,937 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 860 transitions, 4860 flow [2024-11-16 23:37:48,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:37:48,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:48,938 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] [2024-11-16 23:37:48,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:37:48,939 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:37:48,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:48,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1438965040, now seen corresponding path program 1 times [2024-11-16 23:37:48,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:48,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943844711] [2024-11-16 23:37:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:48,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat