./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:08:14,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:08:14,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:08:14,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:08:14,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:08:14,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:08:14,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:08:14,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:08:14,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:08:14,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:08:14,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:08:14,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:08:14,585 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:08:14,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:08:14,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:08:14,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:08:14,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:08:14,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:08:14,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:08:14,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:08:14,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:08:14,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:08:14,589 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:08:14,589 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:08:14,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:08:14,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:08:14,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:08:14,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:08:14,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:08:14,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:08:14,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:08:14,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:14,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:08:14,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:08:14,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:08:14,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:08:14,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:08:14,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:08:14,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:08:14,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:08:14,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:08:14,595 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2024-10-11 17:08:14,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:08:14,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:08:14,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:08:14,913 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:08:14,913 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:08:14,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2024-10-11 17:08:16,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:08:16,558 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:08:16,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2024-10-11 17:08:16,585 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4d0035ad2/442c1fc7c4914617bd16a24e8466460a/FLAG4fffed4b8 [2024-10-11 17:08:16,873 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4d0035ad2/442c1fc7c4914617bd16a24e8466460a [2024-10-11 17:08:16,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:08:16,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:08:16,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:16,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:08:16,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:08:16,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:16" (1/1) ... [2024-10-11 17:08:16,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b049d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:16, skipping insertion in model container [2024-10-11 17:08:16,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:16" (1/1) ... [2024-10-11 17:08:16,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:08:17,372 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,375 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,377 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,379 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:17,421 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:08:17,459 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,460 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,465 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,466 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:17,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:17,535 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:08:17,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17 WrapperNode [2024-10-11 17:08:17,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:17,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:17,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:08:17,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:08:17,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,594 INFO L138 Inliner]: procedures = 271, calls = 25, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 203 [2024-10-11 17:08:17,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:17,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:08:17,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:08:17,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:08:17,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:08:17,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:08:17,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:08:17,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:08:17,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (1/1) ... [2024-10-11 17:08:17,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:17,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:17,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:08:17,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:08:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-11 17:08:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-11 17:08:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:08:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:08:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:08:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:08:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:08:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:08:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:08:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:08:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:08:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:08:17,729 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:08:17,925 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:08:17,927 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:08:18,350 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:08:18,350 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:08:18,378 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:08:18,378 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 17:08:18,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:18 BoogieIcfgContainer [2024-10-11 17:08:18,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:08:18,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:08:18,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:08:18,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:08:18,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:08:16" (1/3) ... [2024-10-11 17:08:18,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c4fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:18, skipping insertion in model container [2024-10-11 17:08:18,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:17" (2/3) ... [2024-10-11 17:08:18,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c4fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:18, skipping insertion in model container [2024-10-11 17:08:18,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:18" (3/3) ... [2024-10-11 17:08:18,388 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2024-10-11 17:08:18,404 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:08:18,404 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-11 17:08:18,404 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:08:18,521 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:08:18,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 302 transitions, 612 flow [2024-10-11 17:08:18,666 INFO L124 PetriNetUnfolderBase]: 14/300 cut-off events. [2024-10-11 17:08:18,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:18,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 300 events. 14/300 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 582 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 225. Up to 2 conditions per place. [2024-10-11 17:08:18,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 302 transitions, 612 flow [2024-10-11 17:08:18,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 300 transitions, 606 flow [2024-10-11 17:08:18,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:08:18,709 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;@5f37f060, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:08:18,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-11 17:08:18,720 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:08:18,720 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-10-11 17:08:18,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:18,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:18,722 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] [2024-10-11 17:08:18,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:18,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1229994503, now seen corresponding path program 1 times [2024-10-11 17:08:18,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:18,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250882448] [2024-10-11 17:08:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:19,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:19,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250882448] [2024-10-11 17:08:19,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250882448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:19,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:19,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:19,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688660036] [2024-10-11 17:08:19,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:19,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:19,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:19,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:19,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:20,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 302 [2024-10-11 17:08:20,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 300 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 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) [2024-10-11 17:08:20,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:20,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 302 [2024-10-11 17:08:20,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:20,572 INFO L124 PetriNetUnfolderBase]: 449/1768 cut-off events. [2024-10-11 17:08:20,573 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 17:08:20,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2667 conditions, 1768 events. 449/1768 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11500 event pairs, 342 based on Foata normal form. 152/1713 useless extension candidates. Maximal degree in co-relation 2472. Up to 846 conditions per place. [2024-10-11 17:08:20,594 INFO L140 encePairwiseOnDemand]: 282/302 looper letters, 72 selfloop transitions, 10 changer transitions 0/290 dead transitions. [2024-10-11 17:08:20,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 290 transitions, 750 flow [2024-10-11 17:08:20,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:20,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1352 transitions. [2024-10-11 17:08:20,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7461368653421634 [2024-10-11 17:08:20,616 INFO L175 Difference]: Start difference. First operand has 293 places, 300 transitions, 606 flow. Second operand 6 states and 1352 transitions. [2024-10-11 17:08:20,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 290 transitions, 750 flow [2024-10-11 17:08:20,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 290 transitions, 748 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:08:20,626 INFO L231 Difference]: Finished difference. Result has 294 places, 290 transitions, 604 flow [2024-10-11 17:08:20,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=604, PETRI_PLACES=294, PETRI_TRANSITIONS=290} [2024-10-11 17:08:20,634 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 1 predicate places. [2024-10-11 17:08:20,634 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 290 transitions, 604 flow [2024-10-11 17:08:20,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 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) [2024-10-11 17:08:20,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:20,635 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] [2024-10-11 17:08:20,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:08:20,636 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:20,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1893762691, now seen corresponding path program 1 times [2024-10-11 17:08:20,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:20,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130827800] [2024-10-11 17:08:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:20,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:20,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130827800] [2024-10-11 17:08:20,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130827800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:20,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:20,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:20,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970792075] [2024-10-11 17:08:20,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:20,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:20,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:20,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:20,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:21,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 302 [2024-10-11 17:08:21,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 290 transitions, 604 flow. Second operand has 6 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 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) [2024-10-11 17:08:21,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:21,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 302 [2024-10-11 17:08:21,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:21,756 INFO L124 PetriNetUnfolderBase]: 449/1766 cut-off events. [2024-10-11 17:08:21,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:21,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 1766 events. 449/1766 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11497 event pairs, 342 based on Foata normal form. 0/1561 useless extension candidates. Maximal degree in co-relation 2500. Up to 846 conditions per place. [2024-10-11 17:08:21,766 INFO L140 encePairwiseOnDemand]: 290/302 looper letters, 72 selfloop transitions, 10 changer transitions 0/288 dead transitions. [2024-10-11 17:08:21,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 288 transitions, 764 flow [2024-10-11 17:08:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:21,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1344 transitions. [2024-10-11 17:08:21,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7417218543046358 [2024-10-11 17:08:21,770 INFO L175 Difference]: Start difference. First operand has 294 places, 290 transitions, 604 flow. Second operand 6 states and 1344 transitions. [2024-10-11 17:08:21,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 288 transitions, 764 flow [2024-10-11 17:08:21,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 288 transitions, 744 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:21,775 INFO L231 Difference]: Finished difference. Result has 292 places, 288 transitions, 600 flow [2024-10-11 17:08:21,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=292, PETRI_TRANSITIONS=288} [2024-10-11 17:08:21,776 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, -1 predicate places. [2024-10-11 17:08:21,777 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 288 transitions, 600 flow [2024-10-11 17:08:21,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 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) [2024-10-11 17:08:21,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:21,778 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] [2024-10-11 17:08:21,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:08:21,778 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:21,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:21,779 INFO L85 PathProgramCache]: Analyzing trace with hash 988610830, now seen corresponding path program 1 times [2024-10-11 17:08:21,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:21,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701863956] [2024-10-11 17:08:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:21,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:21,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:21,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701863956] [2024-10-11 17:08:21,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701863956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:21,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:21,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:21,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970751308] [2024-10-11 17:08:21,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:21,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:21,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:21,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:21,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:21,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 302 [2024-10-11 17:08:21,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 288 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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) [2024-10-11 17:08:21,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:21,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 302 [2024-10-11 17:08:21,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:21,934 INFO L124 PetriNetUnfolderBase]: 29/590 cut-off events. [2024-10-11 17:08:21,934 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:21,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 590 events. 29/590 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2419 event pairs, 18 based on Foata normal form. 1/539 useless extension candidates. Maximal degree in co-relation 433. Up to 45 conditions per place. [2024-10-11 17:08:21,938 INFO L140 encePairwiseOnDemand]: 299/302 looper letters, 11 selfloop transitions, 2 changer transitions 0/289 dead transitions. [2024-10-11 17:08:21,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 289 transitions, 628 flow [2024-10-11 17:08:21,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 860 transitions. [2024-10-11 17:08:21,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9492273730684326 [2024-10-11 17:08:21,940 INFO L175 Difference]: Start difference. First operand has 292 places, 288 transitions, 600 flow. Second operand 3 states and 860 transitions. [2024-10-11 17:08:21,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 289 transitions, 628 flow [2024-10-11 17:08:21,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 289 transitions, 608 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:21,948 INFO L231 Difference]: Finished difference. Result has 290 places, 289 transitions, 592 flow [2024-10-11 17:08:21,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=592, PETRI_PLACES=290, PETRI_TRANSITIONS=289} [2024-10-11 17:08:21,949 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, -3 predicate places. [2024-10-11 17:08:21,949 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 289 transitions, 592 flow [2024-10-11 17:08:21,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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) [2024-10-11 17:08:21,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:21,950 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] [2024-10-11 17:08:21,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:08:21,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:21,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:21,951 INFO L85 PathProgramCache]: Analyzing trace with hash 428698492, now seen corresponding path program 1 times [2024-10-11 17:08:21,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:21,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876588261] [2024-10-11 17:08:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:21,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:22,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:22,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876588261] [2024-10-11 17:08:22,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876588261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:22,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:22,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:22,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628610320] [2024-10-11 17:08:22,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:22,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:22,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:22,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:22,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:22,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 302 [2024-10-11 17:08:22,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 289 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 211.66666666666666) internal successors, (1270), 6 states have internal predecessors, (1270), 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) [2024-10-11 17:08:22,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:22,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 302 [2024-10-11 17:08:22,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:22,896 INFO L124 PetriNetUnfolderBase]: 450/1888 cut-off events. [2024-10-11 17:08:22,896 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:08:22,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 1888 events. 450/1888 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12294 event pairs, 342 based on Foata normal form. 0/1679 useless extension candidates. Maximal degree in co-relation 2653. Up to 894 conditions per place. [2024-10-11 17:08:22,909 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 79 selfloop transitions, 5 changer transitions 0/288 dead transitions. [2024-10-11 17:08:22,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 288 transitions, 758 flow [2024-10-11 17:08:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1339 transitions. [2024-10-11 17:08:22,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7389624724061811 [2024-10-11 17:08:22,913 INFO L175 Difference]: Start difference. First operand has 290 places, 289 transitions, 592 flow. Second operand 6 states and 1339 transitions. [2024-10-11 17:08:22,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 288 transitions, 758 flow [2024-10-11 17:08:22,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 288 transitions, 756 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:22,918 INFO L231 Difference]: Finished difference. Result has 293 places, 288 transitions, 598 flow [2024-10-11 17:08:22,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=598, PETRI_PLACES=293, PETRI_TRANSITIONS=288} [2024-10-11 17:08:22,919 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 0 predicate places. [2024-10-11 17:08:22,919 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 288 transitions, 598 flow [2024-10-11 17:08:22,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.66666666666666) internal successors, (1270), 6 states have internal predecessors, (1270), 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) [2024-10-11 17:08:22,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:22,921 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] [2024-10-11 17:08:22,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:08:22,921 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:22,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash -575331307, now seen corresponding path program 1 times [2024-10-11 17:08:22,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:22,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910485255] [2024-10-11 17:08:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:22,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:22,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910485255] [2024-10-11 17:08:22,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910485255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:22,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:22,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:22,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70357650] [2024-10-11 17:08:22,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:22,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:22,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:22,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:22,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 302 [2024-10-11 17:08:22,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 288 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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) [2024-10-11 17:08:22,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:22,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 302 [2024-10-11 17:08:22,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:23,103 INFO L124 PetriNetUnfolderBase]: 29/776 cut-off events. [2024-10-11 17:08:23,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:23,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 776 events. 29/776 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2374 event pairs, 18 based on Foata normal form. 2/720 useless extension candidates. Maximal degree in co-relation 511. Up to 49 conditions per place. [2024-10-11 17:08:23,107 INFO L140 encePairwiseOnDemand]: 299/302 looper letters, 11 selfloop transitions, 2 changer transitions 0/289 dead transitions. [2024-10-11 17:08:23,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 289 transitions, 626 flow [2024-10-11 17:08:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 860 transitions. [2024-10-11 17:08:23,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9492273730684326 [2024-10-11 17:08:23,110 INFO L175 Difference]: Start difference. First operand has 293 places, 288 transitions, 598 flow. Second operand 3 states and 860 transitions. [2024-10-11 17:08:23,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 289 transitions, 626 flow [2024-10-11 17:08:23,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 289 transitions, 616 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:23,115 INFO L231 Difference]: Finished difference. Result has 291 places, 289 transitions, 600 flow [2024-10-11 17:08:23,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=291, PETRI_TRANSITIONS=289} [2024-10-11 17:08:23,118 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, -2 predicate places. [2024-10-11 17:08:23,118 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 289 transitions, 600 flow [2024-10-11 17:08:23,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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) [2024-10-11 17:08:23,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:23,119 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] [2024-10-11 17:08:23,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:08:23,122 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:23,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash -769199243, now seen corresponding path program 1 times [2024-10-11 17:08:23,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:23,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528448870] [2024-10-11 17:08:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:23,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:23,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:23,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528448870] [2024-10-11 17:08:23,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528448870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:23,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:23,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:23,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313951518] [2024-10-11 17:08:23,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:23,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:23,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:24,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 302 [2024-10-11 17:08:24,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 289 transitions, 600 flow. Second operand has 6 states, 6 states have (on average 238.5) internal successors, (1431), 6 states have internal predecessors, (1431), 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) [2024-10-11 17:08:24,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:24,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 302 [2024-10-11 17:08:24,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:24,262 INFO L124 PetriNetUnfolderBase]: 75/1088 cut-off events. [2024-10-11 17:08:24,263 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:08:24,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 1088 events. 75/1088 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4575 event pairs, 42 based on Foata normal form. 0/995 useless extension candidates. Maximal degree in co-relation 951. Up to 263 conditions per place. [2024-10-11 17:08:24,268 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 54 selfloop transitions, 5 changer transitions 0/288 dead transitions. [2024-10-11 17:08:24,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 288 transitions, 716 flow [2024-10-11 17:08:24,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1464 transitions. [2024-10-11 17:08:24,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8079470198675497 [2024-10-11 17:08:24,273 INFO L175 Difference]: Start difference. First operand has 291 places, 289 transitions, 600 flow. Second operand 6 states and 1464 transitions. [2024-10-11 17:08:24,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 288 transitions, 716 flow [2024-10-11 17:08:24,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 288 transitions, 714 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:24,281 INFO L231 Difference]: Finished difference. Result has 294 places, 288 transitions, 606 flow [2024-10-11 17:08:24,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=606, PETRI_PLACES=294, PETRI_TRANSITIONS=288} [2024-10-11 17:08:24,282 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 1 predicate places. [2024-10-11 17:08:24,285 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 288 transitions, 606 flow [2024-10-11 17:08:24,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 238.5) internal successors, (1431), 6 states have internal predecessors, (1431), 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) [2024-10-11 17:08:24,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:24,286 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] [2024-10-11 17:08:24,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:08:24,287 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:24,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:24,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1485316370, now seen corresponding path program 1 times [2024-10-11 17:08:24,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:24,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673863976] [2024-10-11 17:08:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:24,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:24,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:24,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673863976] [2024-10-11 17:08:24,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673863976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:24,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:24,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:24,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120776102] [2024-10-11 17:08:24,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:24,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:24,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:24,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:24,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:25,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 302 [2024-10-11 17:08:25,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 288 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 214.33333333333334) internal successors, (1286), 6 states have internal predecessors, (1286), 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) [2024-10-11 17:08:25,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:25,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 302 [2024-10-11 17:08:25,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:25,616 INFO L124 PetriNetUnfolderBase]: 450/2068 cut-off events. [2024-10-11 17:08:25,616 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:25,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3124 conditions, 2068 events. 450/2068 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12240 event pairs, 342 based on Foata normal form. 0/1859 useless extension candidates. Maximal degree in co-relation 2696. Up to 960 conditions per place. [2024-10-11 17:08:25,626 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 79 selfloop transitions, 5 changer transitions 0/287 dead transitions. [2024-10-11 17:08:25,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 287 transitions, 772 flow [2024-10-11 17:08:25,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1339 transitions. [2024-10-11 17:08:25,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7389624724061811 [2024-10-11 17:08:25,630 INFO L175 Difference]: Start difference. First operand has 294 places, 288 transitions, 606 flow. Second operand 6 states and 1339 transitions. [2024-10-11 17:08:25,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 287 transitions, 772 flow [2024-10-11 17:08:25,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 287 transitions, 762 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:25,635 INFO L231 Difference]: Finished difference. Result has 293 places, 287 transitions, 604 flow [2024-10-11 17:08:25,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=604, PETRI_PLACES=293, PETRI_TRANSITIONS=287} [2024-10-11 17:08:25,637 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 0 predicate places. [2024-10-11 17:08:25,637 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 287 transitions, 604 flow [2024-10-11 17:08:25,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.33333333333334) internal successors, (1286), 6 states have internal predecessors, (1286), 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) [2024-10-11 17:08:25,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:25,639 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] [2024-10-11 17:08:25,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:08:25,639 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:25,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:25,640 INFO L85 PathProgramCache]: Analyzing trace with hash -888978190, now seen corresponding path program 1 times [2024-10-11 17:08:25,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:25,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285248339] [2024-10-11 17:08:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:26,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:26,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285248339] [2024-10-11 17:08:26,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285248339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:26,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:26,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:26,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820342749] [2024-10-11 17:08:26,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:26,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:26,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:26,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:26,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:26,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 302 [2024-10-11 17:08:26,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 287 transitions, 604 flow. Second operand has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2024-10-11 17:08:26,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:26,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 302 [2024-10-11 17:08:26,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:26,829 INFO L124 PetriNetUnfolderBase]: 450/2064 cut-off events. [2024-10-11 17:08:26,830 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:26,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3104 conditions, 2064 events. 450/2064 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12215 event pairs, 342 based on Foata normal form. 0/1859 useless extension candidates. Maximal degree in co-relation 2712. Up to 944 conditions per place. [2024-10-11 17:08:26,842 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 75 selfloop transitions, 5 changer transitions 0/286 dead transitions. [2024-10-11 17:08:26,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 286 transitions, 762 flow [2024-10-11 17:08:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1359 transitions. [2024-10-11 17:08:26,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-11 17:08:26,846 INFO L175 Difference]: Start difference. First operand has 293 places, 287 transitions, 604 flow. Second operand 6 states and 1359 transitions. [2024-10-11 17:08:26,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 286 transitions, 762 flow [2024-10-11 17:08:26,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 286 transitions, 752 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:26,855 INFO L231 Difference]: Finished difference. Result has 292 places, 286 transitions, 602 flow [2024-10-11 17:08:26,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=602, PETRI_PLACES=292, PETRI_TRANSITIONS=286} [2024-10-11 17:08:26,856 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, -1 predicate places. [2024-10-11 17:08:26,857 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 286 transitions, 602 flow [2024-10-11 17:08:26,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2024-10-11 17:08:26,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:26,859 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] [2024-10-11 17:08:26,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:08:26,859 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:26,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash 168908811, now seen corresponding path program 1 times [2024-10-11 17:08:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941708508] [2024-10-11 17:08:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:26,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:27,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:27,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941708508] [2024-10-11 17:08:27,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941708508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:27,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:27,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:27,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327802319] [2024-10-11 17:08:27,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:27,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:27,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:27,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:27,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 302 [2024-10-11 17:08:27,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 286 transitions, 602 flow. Second operand has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2024-10-11 17:08:27,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:27,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 302 [2024-10-11 17:08:27,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:28,071 INFO L124 PetriNetUnfolderBase]: 450/2060 cut-off events. [2024-10-11 17:08:28,071 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:28,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3100 conditions, 2060 events. 450/2060 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12167 event pairs, 342 based on Foata normal form. 0/1859 useless extension candidates. Maximal degree in co-relation 2727. Up to 944 conditions per place. [2024-10-11 17:08:28,085 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 75 selfloop transitions, 5 changer transitions 0/285 dead transitions. [2024-10-11 17:08:28,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 285 transitions, 760 flow [2024-10-11 17:08:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:28,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1359 transitions. [2024-10-11 17:08:28,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-11 17:08:28,090 INFO L175 Difference]: Start difference. First operand has 292 places, 286 transitions, 602 flow. Second operand 6 states and 1359 transitions. [2024-10-11 17:08:28,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 285 transitions, 760 flow [2024-10-11 17:08:28,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 285 transitions, 750 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:28,095 INFO L231 Difference]: Finished difference. Result has 291 places, 285 transitions, 600 flow [2024-10-11 17:08:28,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=291, PETRI_TRANSITIONS=285} [2024-10-11 17:08:28,097 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, -2 predicate places. [2024-10-11 17:08:28,097 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 285 transitions, 600 flow [2024-10-11 17:08:28,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2024-10-11 17:08:28,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:28,098 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] [2024-10-11 17:08:28,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:08:28,098 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:28,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:28,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1813235101, now seen corresponding path program 1 times [2024-10-11 17:08:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:28,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146687300] [2024-10-11 17:08:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:28,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:28,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:28,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146687300] [2024-10-11 17:08:28,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146687300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:28,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:28,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:28,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614741163] [2024-10-11 17:08:28,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:28,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:28,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:28,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:28,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:28,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 302 [2024-10-11 17:08:28,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 285 transitions, 600 flow. Second operand has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2024-10-11 17:08:28,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:28,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 302 [2024-10-11 17:08:28,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:29,123 INFO L124 PetriNetUnfolderBase]: 450/2056 cut-off events. [2024-10-11 17:08:29,123 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:29,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3116 conditions, 2056 events. 450/2056 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12167 event pairs, 342 based on Foata normal form. 0/1859 useless extension candidates. Maximal degree in co-relation 2740. Up to 964 conditions per place. [2024-10-11 17:08:29,135 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 80 selfloop transitions, 5 changer transitions 0/284 dead transitions. [2024-10-11 17:08:29,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 284 transitions, 768 flow [2024-10-11 17:08:29,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1334 transitions. [2024-10-11 17:08:29,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7362030905077263 [2024-10-11 17:08:29,139 INFO L175 Difference]: Start difference. First operand has 291 places, 285 transitions, 600 flow. Second operand 6 states and 1334 transitions. [2024-10-11 17:08:29,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 284 transitions, 768 flow [2024-10-11 17:08:29,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 284 transitions, 758 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:29,145 INFO L231 Difference]: Finished difference. Result has 290 places, 284 transitions, 598 flow [2024-10-11 17:08:29,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=598, PETRI_PLACES=290, PETRI_TRANSITIONS=284} [2024-10-11 17:08:29,146 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, -3 predicate places. [2024-10-11 17:08:29,147 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 284 transitions, 598 flow [2024-10-11 17:08:29,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2024-10-11 17:08:29,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:29,148 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] [2024-10-11 17:08:29,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:08:29,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:29,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash 107926342, now seen corresponding path program 1 times [2024-10-11 17:08:29,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:29,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076535029] [2024-10-11 17:08:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:29,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:29,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:29,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076535029] [2024-10-11 17:08:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076535029] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716448977] [2024-10-11 17:08:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:29,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:29,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:29,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:29,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:08:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:29,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:08:29,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:29,822 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:29,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716448977] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:29,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:29,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:08:29,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791052658] [2024-10-11 17:08:29,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:29,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:08:29,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:29,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:08:29,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:08:29,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 302 [2024-10-11 17:08:29,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 284 transitions, 598 flow. Second operand has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 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) [2024-10-11 17:08:29,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:29,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 302 [2024-10-11 17:08:29,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:30,189 INFO L124 PetriNetUnfolderBase]: 29/940 cut-off events. [2024-10-11 17:08:30,189 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:08:30,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 940 events. 29/940 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1815 event pairs, 18 based on Foata normal form. 4/906 useless extension candidates. Maximal degree in co-relation 504. Up to 49 conditions per place. [2024-10-11 17:08:30,193 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 15 selfloop transitions, 9 changer transitions 0/292 dead transitions. [2024-10-11 17:08:30,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 292 transitions, 664 flow [2024-10-11 17:08:30,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:08:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:08:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2537 transitions. [2024-10-11 17:08:30,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9334069168506255 [2024-10-11 17:08:30,199 INFO L175 Difference]: Start difference. First operand has 290 places, 284 transitions, 598 flow. Second operand 9 states and 2537 transitions. [2024-10-11 17:08:30,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 292 transitions, 664 flow [2024-10-11 17:08:30,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 292 transitions, 654 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:30,204 INFO L231 Difference]: Finished difference. Result has 296 places, 290 transitions, 638 flow [2024-10-11 17:08:30,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=638, PETRI_PLACES=296, PETRI_TRANSITIONS=290} [2024-10-11 17:08:30,205 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 3 predicate places. [2024-10-11 17:08:30,205 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 290 transitions, 638 flow [2024-10-11 17:08:30,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 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) [2024-10-11 17:08:30,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:30,207 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 17:08:30,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:30,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 17:08:30,408 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:30,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:30,409 INFO L85 PathProgramCache]: Analyzing trace with hash 634914792, now seen corresponding path program 2 times [2024-10-11 17:08:30,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:30,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029288098] [2024-10-11 17:08:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:30,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:08:30,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029288098] [2024-10-11 17:08:30,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029288098] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284544137] [2024-10-11 17:08:30,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:30,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:30,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:30,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:30,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:08:31,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:31,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:31,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:08:31,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:31,174 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 [2024-10-11 17:08:31,192 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 [2024-10-11 17:08:31,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:31,221 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 [2024-10-11 17:08:31,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:31,260 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 [2024-10-11 17:08:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-11 17:08:31,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:31,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284544137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:31,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:31,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 17:08:31,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086952359] [2024-10-11 17:08:31,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:31,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:31,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:31,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:31,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 17:08:31,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 302 [2024-10-11 17:08:31,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 290 transitions, 638 flow. Second operand has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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) [2024-10-11 17:08:31,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:31,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 302 [2024-10-11 17:08:31,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:32,421 INFO L124 PetriNetUnfolderBase]: 199/1841 cut-off events. [2024-10-11 17:08:32,422 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-11 17:08:32,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2459 conditions, 1841 events. 199/1841 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8776 event pairs, 54 based on Foata normal form. 0/1699 useless extension candidates. Maximal degree in co-relation 1889. Up to 448 conditions per place. [2024-10-11 17:08:32,431 INFO L140 encePairwiseOnDemand]: 290/302 looper letters, 71 selfloop transitions, 23 changer transitions 0/325 dead transitions. [2024-10-11 17:08:32,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 325 transitions, 904 flow [2024-10-11 17:08:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:32,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1505 transitions. [2024-10-11 17:08:32,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8305739514348786 [2024-10-11 17:08:32,437 INFO L175 Difference]: Start difference. First operand has 296 places, 290 transitions, 638 flow. Second operand 6 states and 1505 transitions. [2024-10-11 17:08:32,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 325 transitions, 904 flow [2024-10-11 17:08:32,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 325 transitions, 898 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:32,443 INFO L231 Difference]: Finished difference. Result has 305 places, 312 transitions, 790 flow [2024-10-11 17:08:32,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=790, PETRI_PLACES=305, PETRI_TRANSITIONS=312} [2024-10-11 17:08:32,445 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 12 predicate places. [2024-10-11 17:08:32,445 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 312 transitions, 790 flow [2024-10-11 17:08:32,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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) [2024-10-11 17:08:32,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:32,447 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 17:08:32,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:08:32,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:32,651 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:32,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:32,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1335648195, now seen corresponding path program 1 times [2024-10-11 17:08:32,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:32,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303113988] [2024-10-11 17:08:32,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:32,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:08:33,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:33,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303113988] [2024-10-11 17:08:33,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303113988] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:33,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442791660] [2024-10-11 17:08:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:33,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:33,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:33,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:33,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:08:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:33,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:08:33,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:33,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:34,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442791660] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:34,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:34,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-11 17:08:34,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314125832] [2024-10-11 17:08:34,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:34,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 17:08:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:34,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 17:08:34,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-11 17:08:34,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 302 [2024-10-11 17:08:34,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 312 transitions, 790 flow. Second operand has 19 states, 19 states have (on average 275.6842105263158) internal successors, (5238), 19 states have internal predecessors, (5238), 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) [2024-10-11 17:08:34,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:34,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 302 [2024-10-11 17:08:34,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:36,420 INFO L124 PetriNetUnfolderBase]: 186/3379 cut-off events. [2024-10-11 17:08:36,421 INFO L125 PetriNetUnfolderBase]: For 134/138 co-relation queries the response was YES. [2024-10-11 17:08:36,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4103 conditions, 3379 events. 186/3379 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9504 event pairs, 55 based on Foata normal form. 13/3223 useless extension candidates. Maximal degree in co-relation 2787. Up to 146 conditions per place. [2024-10-11 17:08:36,433 INFO L140 encePairwiseOnDemand]: 291/302 looper letters, 47 selfloop transitions, 68 changer transitions 0/398 dead transitions. [2024-10-11 17:08:36,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 398 transitions, 1430 flow [2024-10-11 17:08:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-11 17:08:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-11 17:08:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 17327 transitions. [2024-10-11 17:08:36,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9107011458004836 [2024-10-11 17:08:36,469 INFO L175 Difference]: Start difference. First operand has 305 places, 312 transitions, 790 flow. Second operand 63 states and 17327 transitions. [2024-10-11 17:08:36,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 398 transitions, 1430 flow [2024-10-11 17:08:36,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 398 transitions, 1430 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:36,481 INFO L231 Difference]: Finished difference. Result has 383 places, 374 transitions, 1310 flow [2024-10-11 17:08:36,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1310, PETRI_PLACES=383, PETRI_TRANSITIONS=374} [2024-10-11 17:08:36,483 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 90 predicate places. [2024-10-11 17:08:36,483 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 374 transitions, 1310 flow [2024-10-11 17:08:36,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 275.6842105263158) internal successors, (5238), 19 states have internal predecessors, (5238), 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) [2024-10-11 17:08:36,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:36,486 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:36,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:08:36,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:36,691 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:36,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1773267933, now seen corresponding path program 2 times [2024-10-11 17:08:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:36,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831183120] [2024-10-11 17:08:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:36,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:08:40,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:40,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831183120] [2024-10-11 17:08:40,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831183120] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:40,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288364991] [2024-10-11 17:08:40,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:40,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:40,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:40,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:40,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:08:40,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:40,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:40,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 17:08:40,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:41,017 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 [2024-10-11 17:08:41,039 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 [2024-10-11 17:08:41,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:41,070 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 [2024-10-11 17:08:41,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:41,114 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 [2024-10-11 17:08:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-10-11 17:08:41,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:41,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288364991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:41,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:41,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:08:41,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482923683] [2024-10-11 17:08:41,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:41,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:41,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:41,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:41,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:08:41,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 302 [2024-10-11 17:08:41,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 374 transitions, 1310 flow. Second operand has 6 states, 6 states have (on average 242.66666666666666) internal successors, (1456), 6 states have internal predecessors, (1456), 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) [2024-10-11 17:08:41,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:41,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 302 [2024-10-11 17:08:41,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:43,461 INFO L124 PetriNetUnfolderBase]: 311/3935 cut-off events. [2024-10-11 17:08:43,461 INFO L125 PetriNetUnfolderBase]: For 696/730 co-relation queries the response was YES. [2024-10-11 17:08:43,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5793 conditions, 3935 events. 311/3935 cut-off events. For 696/730 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15565 event pairs, 61 based on Foata normal form. 8/3729 useless extension candidates. Maximal degree in co-relation 3813. Up to 1009 conditions per place. [2024-10-11 17:08:43,476 INFO L140 encePairwiseOnDemand]: 290/302 looper letters, 84 selfloop transitions, 31 changer transitions 0/413 dead transitions. [2024-10-11 17:08:43,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 413 transitions, 1660 flow [2024-10-11 17:08:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:43,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:43,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1501 transitions. [2024-10-11 17:08:43,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8283664459161147 [2024-10-11 17:08:43,480 INFO L175 Difference]: Start difference. First operand has 383 places, 374 transitions, 1310 flow. Second operand 6 states and 1501 transitions. [2024-10-11 17:08:43,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 413 transitions, 1660 flow [2024-10-11 17:08:43,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 413 transitions, 1584 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-11 17:08:43,493 INFO L231 Difference]: Finished difference. Result has 386 places, 404 transitions, 1492 flow [2024-10-11 17:08:43,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=1234, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1492, PETRI_PLACES=386, PETRI_TRANSITIONS=404} [2024-10-11 17:08:43,494 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 93 predicate places. [2024-10-11 17:08:43,494 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 404 transitions, 1492 flow [2024-10-11 17:08:43,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.66666666666666) internal successors, (1456), 6 states have internal predecessors, (1456), 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) [2024-10-11 17:08:43,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:43,496 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:43,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:43,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 17:08:43,697 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:43,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:43,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1851281897, now seen corresponding path program 1 times [2024-10-11 17:08:43,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:43,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704415463] [2024-10-11 17:08:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:43,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:08:46,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704415463] [2024-10-11 17:08:46,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704415463] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286627412] [2024-10-11 17:08:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:46,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:46,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:46,557 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:46,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:08:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:47,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 5483 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:08:47,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:08:48,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:08:49,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286627412] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:49,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:49,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 17:08:49,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100151657] [2024-10-11 17:08:49,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:49,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 17:08:49,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:49,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 17:08:49,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 17:08:49,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 302 [2024-10-11 17:08:49,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 404 transitions, 1492 flow. Second operand has 34 states, 34 states have (on average 281.1764705882353) internal successors, (9560), 34 states have internal predecessors, (9560), 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) [2024-10-11 17:08:49,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:49,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 302 [2024-10-11 17:08:49,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:52,198 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([551] L1032-3-->L1037-2: Formula: (and (= |v_fThread1of1ForFork0_#t~ret18#1_1| 0) (= |v_#pthreadsMutex_11| (store |v_#pthreadsMutex_12| |v_~#c~0.base_20| (store (select |v_#pthreadsMutex_12| |v_~#c~0.base_20|) (+ (* |v_fThread1of1ForFork0_~j~0#1_29| 24) |v_~#c~0.offset_18| 80) 0)))) InVars {~#c~0.base=|v_~#c~0.base_20|, #pthreadsMutex=|v_#pthreadsMutex_12|, fThread1of1ForFork0_~j~0#1=|v_fThread1of1ForFork0_~j~0#1_29|, ~#c~0.offset=|v_~#c~0.offset_18|} OutVars{~#c~0.base=|v_~#c~0.base_20|, #pthreadsMutex=|v_#pthreadsMutex_11|, fThread1of1ForFork0_~j~0#1=|v_fThread1of1ForFork0_~j~0#1_29|, ~#c~0.offset=|v_~#c~0.offset_18|, fThread1of1ForFork0_#t~ret18#1=|v_fThread1of1ForFork0_#t~ret18#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, fThread1of1ForFork0_#t~ret18#1][341], [Black: 3515#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 4471#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 29)), Black: 4513#(and (<= |ULTIMATE.start_main_~j~1#1| 29) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 322#(= |ULTIMATE.start_main_~j~1#1| 0), Black: 3274#(<= |ULTIMATE.start_main_~j~1#1| 3), Black: 3526#(< |ULTIMATE.start_main_~j~1#1| 29), Black: 4475#(and (= 0 |ULTIMATE.start_main_#t~post22#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4465#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 28)), 4554#true, Black: 2353#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 3798#(< |ULTIMATE.start_main_~j~1#1| 28), 209#ULTIMATE.startFINALtrue, 94#L1037-2true, Black: 8663#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 3 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 8669#true, 354#true, Black: 8655#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 296#true, Black: 8659#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 8651#(= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0), Black: 358#(<= |ULTIMATE.start_main_~j~1#1| 1), Black: 937#(< |ULTIMATE.start_main_~j~1#1| 30), 1323#true, Black: 2345#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= 0 (select (select |#race| |~#c~0.base|) (+ 3 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))))), Black: 2341#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0)), Black: 2333#(= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0), Black: 2337#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0)), 10#L1037-2true, 294#true, Black: 312#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 2355#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 4459#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 27)), Black: 4507#(and (<= |ULTIMATE.start_main_~j~1#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4453#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 3)), 2351#true, Black: 4495#(and (<= |ULTIMATE.start_main_~j~1#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4501#(and (<= |ULTIMATE.start_main_~j~1#1| 27) (<= |ULTIMATE.start_main_~i~0#1| 1))]) [2024-10-11 17:08:52,199 INFO L294 olderBase$Statistics]: this new event has 2896 ancestors and is cut-off event [2024-10-11 17:08:52,199 INFO L297 olderBase$Statistics]: existing Event has 2869 ancestors and is cut-off event [2024-10-11 17:08:52,199 INFO L297 olderBase$Statistics]: existing Event has 2869 ancestors and is cut-off event [2024-10-11 17:08:52,199 INFO L297 olderBase$Statistics]: existing Event has 2869 ancestors and is cut-off event [2024-10-11 17:08:53,277 INFO L124 PetriNetUnfolderBase]: 340/6405 cut-off events. [2024-10-11 17:08:53,277 INFO L125 PetriNetUnfolderBase]: For 3561/3579 co-relation queries the response was YES. [2024-10-11 17:08:53,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8303 conditions, 6405 events. 340/6405 cut-off events. For 3561/3579 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17949 event pairs, 100 based on Foata normal form. 30/6167 useless extension candidates. Maximal degree in co-relation 5653. Up to 259 conditions per place. [2024-10-11 17:08:53,307 INFO L140 encePairwiseOnDemand]: 296/302 looper letters, 47 selfloop transitions, 135 changer transitions 0/505 dead transitions. [2024-10-11 17:08:53,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 505 transitions, 2620 flow [2024-10-11 17:08:53,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 17:08:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-11 17:08:53,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 12635 transitions. [2024-10-11 17:08:53,324 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9297277409860192 [2024-10-11 17:08:53,324 INFO L175 Difference]: Start difference. First operand has 386 places, 404 transitions, 1492 flow. Second operand 45 states and 12635 transitions. [2024-10-11 17:08:53,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 505 transitions, 2620 flow [2024-10-11 17:08:53,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 505 transitions, 2620 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:53,345 INFO L231 Difference]: Finished difference. Result has 439 places, 479 transitions, 2366 flow [2024-10-11 17:08:53,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=1492, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2366, PETRI_PLACES=439, PETRI_TRANSITIONS=479} [2024-10-11 17:08:53,348 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 146 predicate places. [2024-10-11 17:08:53,348 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 479 transitions, 2366 flow [2024-10-11 17:08:53,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 281.1764705882353) internal successors, (9560), 34 states have internal predecessors, (9560), 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) [2024-10-11 17:08:53,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:53,357 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:53,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 17:08:53,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 17:08:53,558 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:08:53,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:53,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1846285033, now seen corresponding path program 2 times [2024-10-11 17:08:53,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:53,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019128880] [2024-10-11 17:08:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:03,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:03,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019128880] [2024-10-11 17:09:03,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019128880] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:03,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396980237] [2024-10-11 17:09:03,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:09:03,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:03,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:03,395 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:09:03,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 17:09:04,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:09:04,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:09:04,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 17:09:04,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:04,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:09:05,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 17:09:05,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:05,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-11 17:09:05,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:05,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-11 17:09:05,127 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-11 17:09:05,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:09:05,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396980237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:05,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:09:05,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-11 17:09:05,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683795440] [2024-10-11 17:09:05,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:05,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:05,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:05,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 17:09:05,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 302 [2024-10-11 17:09:05,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 479 transitions, 2366 flow. Second operand has 6 states, 6 states have (on average 241.5) internal successors, (1449), 6 states have internal predecessors, (1449), 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) [2024-10-11 17:09:05,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:05,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 302 [2024-10-11 17:09:05,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:09,306 INFO L124 PetriNetUnfolderBase]: 454/6662 cut-off events. [2024-10-11 17:09:09,307 INFO L125 PetriNetUnfolderBase]: For 2367/2459 co-relation queries the response was YES. [2024-10-11 17:09:09,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10605 conditions, 6662 events. 454/6662 cut-off events. For 2367/2459 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 21293 event pairs, 87 based on Foata normal form. 34/6465 useless extension candidates. Maximal degree in co-relation 7194. Up to 1847 conditions per place. [2024-10-11 17:09:09,331 INFO L140 encePairwiseOnDemand]: 291/302 looper letters, 108 selfloop transitions, 55 changer transitions 0/540 dead transitions. [2024-10-11 17:09:09,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 540 transitions, 3018 flow [2024-10-11 17:09:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1498 transitions. [2024-10-11 17:09:09,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.826710816777042 [2024-10-11 17:09:09,335 INFO L175 Difference]: Start difference. First operand has 439 places, 479 transitions, 2366 flow. Second operand 6 states and 1498 transitions. [2024-10-11 17:09:09,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 540 transitions, 3018 flow [2024-10-11 17:09:09,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 540 transitions, 2910 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-11 17:09:09,360 INFO L231 Difference]: Finished difference. Result has 431 places, 528 transitions, 2812 flow [2024-10-11 17:09:09,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=2258, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2812, PETRI_PLACES=431, PETRI_TRANSITIONS=528} [2024-10-11 17:09:09,361 INFO L277 CegarLoopForPetriNet]: 293 programPoint places, 138 predicate places. [2024-10-11 17:09:09,361 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 528 transitions, 2812 flow [2024-10-11 17:09:09,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.5) internal successors, (1449), 6 states have internal predecessors, (1449), 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) [2024-10-11 17:09:09,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:09,363 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:09,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 17:09:09,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 17:09:09,568 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:09:09,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1129148692, now seen corresponding path program 1 times [2024-10-11 17:09:09,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:09,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947762376] [2024-10-11 17:09:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:09,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:18,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947762376] [2024-10-11 17:09:18,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947762376] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451890813] [2024-10-11 17:09:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:18,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:18,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:18,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:09:18,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 17:09:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:20,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 11389 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 17:09:20,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:22,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:09:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:24,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451890813] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:09:24,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:09:24,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-11 17:09:24,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353626444] [2024-10-11 17:09:24,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:09:24,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-11 17:09:24,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:24,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-11 17:09:24,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 17:09:24,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 302 [2024-10-11 17:09:24,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 528 transitions, 2812 flow. Second operand has 63 states, 63 states have (on average 281.14285714285717) internal successors, (17712), 63 states have internal predecessors, (17712), 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) [2024-10-11 17:09:24,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:24,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 302 [2024-10-11 17:09:24,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand