./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:45:49,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:45:49,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:45:49,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:45:49,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:45:49,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:45:49,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:45:49,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:45:49,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:45:49,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:45:49,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:45:49,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:45:49,602 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:45:49,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:45:49,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:45:49,603 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:45:49,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:45:49,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:45:49,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:45:49,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:45:49,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:45:49,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:45:49,607 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:45:49,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:45:49,609 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:45:49,610 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:45:49,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:45:49,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:45:49,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:45:49,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:45:49,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:45:49,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:45:49,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:45:49,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:45:49,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:45:49,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:45:49,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:45:49,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:45:49,615 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:45:49,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:45:49,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:45:49,616 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2024-11-08 18:45:49,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:45:49,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:45:49,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:45:49,904 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:45:49,904 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:45:49,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i Unable to find full path for "g++" [2024-11-08 18:45:51,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:45:52,295 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:45:52,298 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-11-08 18:45:52,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data/a9f1d1a3c/3b455ef854b84008a11c96cffc88628d/FLAGcc6879709 [2024-11-08 18:45:52,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data/a9f1d1a3c/3b455ef854b84008a11c96cffc88628d [2024-11-08 18:45:52,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:45:52,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:45:52,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:45:52,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:45:52,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:45:52,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:45:52" (1/1) ... [2024-11-08 18:45:52,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e79759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:52, skipping insertion in model container [2024-11-08 18:45:52,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:45:52" (1/1) ... [2024-11-08 18:45:52,424 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:45:53,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:45:53,250 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:45:53,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:45:53,468 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:45:53,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53 WrapperNode [2024-11-08 18:45:53,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:45:53,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:45:53,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:45:53,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:45:53,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,586 INFO L138 Inliner]: procedures = 372, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 391 [2024-11-08 18:45:53,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:45:53,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:45:53,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:45:53,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:45:53,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:45:53,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:45:53,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:45:53,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:45:53,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (1/1) ... [2024-11-08 18:45:53,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:45:53,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:53,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:45:53,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:45:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 18:45:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 18:45:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:45:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 18:45:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 18:45:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:45:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:45:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:45:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 18:45:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:45:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:45:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 18:45:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:45:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:45:53,778 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:45:53,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:45:53,993 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:45:54,883 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:45:54,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:45:54,978 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:45:54,978 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:45:54,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:45:54 BoogieIcfgContainer [2024-11-08 18:45:54,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:45:54,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:45:54,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:45:54,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:45:54,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:45:52" (1/3) ... [2024-11-08 18:45:54,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b97e739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:45:54, skipping insertion in model container [2024-11-08 18:45:54,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:53" (2/3) ... [2024-11-08 18:45:54,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b97e739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:45:54, skipping insertion in model container [2024-11-08 18:45:54,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:45:54" (3/3) ... [2024-11-08 18:45:55,001 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2024-11-08 18:45:55,023 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:45:55,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-08 18:45:55,024 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:45:55,171 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:45:55,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 459 transitions, 922 flow [2024-11-08 18:45:55,459 INFO L124 PetriNetUnfolderBase]: 5/458 cut-off events. [2024-11-08 18:45:55,460 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:45:55,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 458 events. 5/458 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 365 event pairs, 0 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 330. Up to 2 conditions per place. [2024-11-08 18:45:55,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 459 transitions, 922 flow [2024-11-08 18:45:55,480 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 457 places, 458 transitions, 919 flow [2024-11-08 18:45:55,495 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:45:55,506 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;@3285f03a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:45:55,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-08 18:45:55,535 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:45:55,535 INFO L124 PetriNetUnfolderBase]: 2/105 cut-off events. [2024-11-08 18:45:55,536 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:45:55,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:55,537 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:55,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:45:55,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:55,543 INFO L85 PathProgramCache]: Analyzing trace with hash -376432898, now seen corresponding path program 1 times [2024-11-08 18:45:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:55,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665633128] [2024-11-08 18:45:55,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:55,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:56,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:56,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665633128] [2024-11-08 18:45:56,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665633128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:56,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:56,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:45:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212558994] [2024-11-08 18:45:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:56,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:45:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:56,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:45:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:45:58,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 459 [2024-11-08 18:45:58,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 458 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 331.3333333333333) internal successors, (1988), 6 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:45:58,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:58,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 459 [2024-11-08 18:45:58,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:58,997 INFO L124 PetriNetUnfolderBase]: 366/1814 cut-off events. [2024-11-08 18:45:58,998 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:45:59,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2670 conditions, 1814 events. 366/1814 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9463 event pairs, 364 based on Foata normal form. 13/1689 useless extension candidates. Maximal degree in co-relation 2256. Up to 837 conditions per place. [2024-11-08 18:45:59,017 INFO L140 encePairwiseOnDemand]: 438/459 looper letters, 108 selfloop transitions, 15 changer transitions 2/452 dead transitions. [2024-11-08 18:45:59,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 452 transitions, 1153 flow [2024-11-08 18:45:59,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:45:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:45:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2109 transitions. [2024-11-08 18:45:59,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7657952069716776 [2024-11-08 18:45:59,044 INFO L175 Difference]: Start difference. First operand has 457 places, 458 transitions, 919 flow. Second operand 6 states and 2109 transitions. [2024-11-08 18:45:59,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 452 transitions, 1153 flow [2024-11-08 18:45:59,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 452 transitions, 1152 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:45:59,060 INFO L231 Difference]: Finished difference. Result has 458 places, 450 transitions, 932 flow [2024-11-08 18:45:59,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=932, PETRI_PLACES=458, PETRI_TRANSITIONS=450} [2024-11-08 18:45:59,066 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 1 predicate places. [2024-11-08 18:45:59,067 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 450 transitions, 932 flow [2024-11-08 18:45:59,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 331.3333333333333) internal successors, (1988), 6 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:45:59,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:59,069 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:59,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:45:59,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:45:59,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:59,070 INFO L85 PathProgramCache]: Analyzing trace with hash -647946450, now seen corresponding path program 1 times [2024-11-08 18:45:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:59,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849363909] [2024-11-08 18:45:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:59,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:59,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849363909] [2024-11-08 18:45:59,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849363909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:59,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:59,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:45:59,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14570253] [2024-11-08 18:45:59,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:59,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:45:59,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:59,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:45:59,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:00,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 459 [2024-11-08 18:46:00,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 450 transitions, 932 flow. Second operand has 6 states, 6 states have (on average 331.3333333333333) internal successors, (1988), 6 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:00,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:00,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 459 [2024-11-08 18:46:00,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:01,384 INFO L124 PetriNetUnfolderBase]: 366/1809 cut-off events. [2024-11-08 18:46:01,384 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:46:01,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2680 conditions, 1809 events. 366/1809 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9516 event pairs, 364 based on Foata normal form. 0/1676 useless extension candidates. Maximal degree in co-relation 2399. Up to 837 conditions per place. [2024-11-08 18:46:01,395 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 108 selfloop transitions, 15 changer transitions 0/447 dead transitions. [2024-11-08 18:46:01,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 447 transitions, 1172 flow [2024-11-08 18:46:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:01,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2024-11-08 18:46:01,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2024-11-08 18:46:01,404 INFO L175 Difference]: Start difference. First operand has 458 places, 450 transitions, 932 flow. Second operand 6 states and 2106 transitions. [2024-11-08 18:46:01,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 447 transitions, 1172 flow [2024-11-08 18:46:01,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 447 transitions, 1142 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:01,421 INFO L231 Difference]: Finished difference. Result has 453 places, 447 transitions, 926 flow [2024-11-08 18:46:01,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=926, PETRI_PLACES=453, PETRI_TRANSITIONS=447} [2024-11-08 18:46:01,423 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -4 predicate places. [2024-11-08 18:46:01,423 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 447 transitions, 926 flow [2024-11-08 18:46:01,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 331.3333333333333) internal successors, (1988), 6 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:01,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:01,425 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:01,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:46:01,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:01,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:01,427 INFO L85 PathProgramCache]: Analyzing trace with hash 587968013, now seen corresponding path program 1 times [2024-11-08 18:46:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:01,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620774012] [2024-11-08 18:46:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:01,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:02,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:02,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620774012] [2024-11-08 18:46:02,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620774012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:02,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:02,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:02,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651531677] [2024-11-08 18:46:02,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:02,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:02,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:02,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:02,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:03,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 459 [2024-11-08 18:46:03,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 447 transitions, 926 flow. Second operand has 6 states, 6 states have (on average 330.8333333333333) internal successors, (1985), 6 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:03,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:03,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 459 [2024-11-08 18:46:03,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:03,691 INFO L124 PetriNetUnfolderBase]: 392/1897 cut-off events. [2024-11-08 18:46:03,692 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 18:46:03,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1897 events. 392/1897 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10227 event pairs, 390 based on Foata normal form. 0/1759 useless extension candidates. Maximal degree in co-relation 2525. Up to 903 conditions per place. [2024-11-08 18:46:03,701 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 122 selfloop transitions, 5 changer transitions 0/446 dead transitions. [2024-11-08 18:46:03,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 446 transitions, 1178 flow [2024-11-08 18:46:03,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:03,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2096 transitions. [2024-11-08 18:46:03,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7610748002904866 [2024-11-08 18:46:03,707 INFO L175 Difference]: Start difference. First operand has 453 places, 447 transitions, 926 flow. Second operand 6 states and 2096 transitions. [2024-11-08 18:46:03,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 446 transitions, 1178 flow [2024-11-08 18:46:03,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 446 transitions, 1148 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:03,716 INFO L231 Difference]: Finished difference. Result has 452 places, 446 transitions, 904 flow [2024-11-08 18:46:03,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=904, PETRI_PLACES=452, PETRI_TRANSITIONS=446} [2024-11-08 18:46:03,718 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -5 predicate places. [2024-11-08 18:46:03,719 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 446 transitions, 904 flow [2024-11-08 18:46:03,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 330.8333333333333) internal successors, (1985), 6 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:03,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:03,720 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] [2024-11-08 18:46:03,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:46:03,721 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:03,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:03,722 INFO L85 PathProgramCache]: Analyzing trace with hash -577957827, now seen corresponding path program 1 times [2024-11-08 18:46:03,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:03,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100805509] [2024-11-08 18:46:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:03,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:03,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:03,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:03,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100805509] [2024-11-08 18:46:03,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100805509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:03,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:03,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:46:03,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150334096] [2024-11-08 18:46:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:03,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:46:03,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:03,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:46:03,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:46:03,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 459 [2024-11-08 18:46:03,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 446 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:03,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:03,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 459 [2024-11-08 18:46:03,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:04,125 INFO L124 PetriNetUnfolderBase]: 8/632 cut-off events. [2024-11-08 18:46:04,125 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:46:04,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 632 events. 8/632 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 631 event pairs, 6 based on Foata normal form. 2/598 useless extension candidates. Maximal degree in co-relation 470. Up to 25 conditions per place. [2024-11-08 18:46:04,128 INFO L140 encePairwiseOnDemand]: 455/459 looper letters, 11 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2024-11-08 18:46:04,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 447 transitions, 932 flow [2024-11-08 18:46:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:46:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:46:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1347 transitions. [2024-11-08 18:46:04,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9782135076252724 [2024-11-08 18:46:04,132 INFO L175 Difference]: Start difference. First operand has 452 places, 446 transitions, 904 flow. Second operand 3 states and 1347 transitions. [2024-11-08 18:46:04,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 447 transitions, 932 flow [2024-11-08 18:46:04,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 447 transitions, 922 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:04,142 INFO L231 Difference]: Finished difference. Result has 450 places, 447 transitions, 908 flow [2024-11-08 18:46:04,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=450, PETRI_TRANSITIONS=447} [2024-11-08 18:46:04,144 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -7 predicate places. [2024-11-08 18:46:04,144 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 447 transitions, 908 flow [2024-11-08 18:46:04,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:04,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:04,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:04,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:46:04,146 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:04,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1587317976, now seen corresponding path program 1 times [2024-11-08 18:46:04,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:04,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190689057] [2024-11-08 18:46:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:04,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:04,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:04,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190689057] [2024-11-08 18:46:04,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190689057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:04,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:04,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:04,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762096366] [2024-11-08 18:46:04,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:04,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:04,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:04,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:04,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:06,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 459 [2024-11-08 18:46:06,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 447 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:06,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:06,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 459 [2024-11-08 18:46:06,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:06,426 INFO L124 PetriNetUnfolderBase]: 56/873 cut-off events. [2024-11-08 18:46:06,426 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 18:46:06,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 873 events. 56/873 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2245 event pairs, 54 based on Foata normal form. 0/813 useless extension candidates. Maximal degree in co-relation 890. Up to 219 conditions per place. [2024-11-08 18:46:06,431 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 81 selfloop transitions, 5 changer transitions 0/446 dead transitions. [2024-11-08 18:46:06,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 446 transitions, 1078 flow [2024-11-08 18:46:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:06,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2306 transitions. [2024-11-08 18:46:06,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8373275236020334 [2024-11-08 18:46:06,437 INFO L175 Difference]: Start difference. First operand has 450 places, 447 transitions, 908 flow. Second operand 6 states and 2306 transitions. [2024-11-08 18:46:06,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 446 transitions, 1078 flow [2024-11-08 18:46:06,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 446 transitions, 1076 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:46:06,446 INFO L231 Difference]: Finished difference. Result has 453 places, 446 transitions, 914 flow [2024-11-08 18:46:06,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=453, PETRI_TRANSITIONS=446} [2024-11-08 18:46:06,448 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -4 predicate places. [2024-11-08 18:46:06,449 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 446 transitions, 914 flow [2024-11-08 18:46:06,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:06,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:06,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:06,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:46:06,451 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:06,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:06,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1850684983, now seen corresponding path program 1 times [2024-11-08 18:46:06,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:06,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846886870] [2024-11-08 18:46:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:06,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:07,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:07,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846886870] [2024-11-08 18:46:07,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846886870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:07,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:07,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:07,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114530604] [2024-11-08 18:46:07,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:07,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:07,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:07,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:07,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:08,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 459 [2024-11-08 18:46:08,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 446 transitions, 914 flow. Second operand has 6 states, 6 states have (on average 357.5) internal successors, (2145), 6 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:08,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:08,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 459 [2024-11-08 18:46:08,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:08,608 INFO L124 PetriNetUnfolderBase]: 38/786 cut-off events. [2024-11-08 18:46:08,608 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 18:46:08,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 786 events. 38/786 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1739 event pairs, 36 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 758. Up to 190 conditions per place. [2024-11-08 18:46:08,612 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 85 selfloop transitions, 15 changer transitions 0/443 dead transitions. [2024-11-08 18:46:08,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 443 transitions, 1108 flow [2024-11-08 18:46:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:08,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2221 transitions. [2024-11-08 18:46:08,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8064633260711692 [2024-11-08 18:46:08,618 INFO L175 Difference]: Start difference. First operand has 453 places, 446 transitions, 914 flow. Second operand 6 states and 2221 transitions. [2024-11-08 18:46:08,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 443 transitions, 1108 flow [2024-11-08 18:46:08,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 443 transitions, 1098 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:08,645 INFO L231 Difference]: Finished difference. Result has 450 places, 443 transitions, 928 flow [2024-11-08 18:46:08,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=928, PETRI_PLACES=450, PETRI_TRANSITIONS=443} [2024-11-08 18:46:08,647 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -7 predicate places. [2024-11-08 18:46:08,647 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 443 transitions, 928 flow [2024-11-08 18:46:08,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 357.5) internal successors, (2145), 6 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:08,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:08,650 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:08,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:46:08,650 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:08,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash -329590938, now seen corresponding path program 1 times [2024-11-08 18:46:08,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:08,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576815500] [2024-11-08 18:46:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:08,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:09,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:09,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576815500] [2024-11-08 18:46:09,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576815500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:09,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:09,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:09,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172185100] [2024-11-08 18:46:09,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:09,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:09,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:09,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:09,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:09,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 459 [2024-11-08 18:46:09,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 443 transitions, 928 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:09,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:09,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 459 [2024-11-08 18:46:09,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:10,412 INFO L124 PetriNetUnfolderBase]: 366/1908 cut-off events. [2024-11-08 18:46:10,412 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:46:10,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2848 conditions, 1908 events. 366/1908 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9424 event pairs, 364 based on Foata normal form. 0/1784 useless extension candidates. Maximal degree in co-relation 2457. Up to 890 conditions per place. [2024-11-08 18:46:10,420 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 123 selfloop transitions, 15 changer transitions 0/440 dead transitions. [2024-11-08 18:46:10,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 440 transitions, 1198 flow [2024-11-08 18:46:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2024-11-08 18:46:10,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7374727668845316 [2024-11-08 18:46:10,425 INFO L175 Difference]: Start difference. First operand has 450 places, 443 transitions, 928 flow. Second operand 6 states and 2031 transitions. [2024-11-08 18:46:10,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 440 transitions, 1198 flow [2024-11-08 18:46:10,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 440 transitions, 1168 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:10,434 INFO L231 Difference]: Finished difference. Result has 447 places, 440 transitions, 922 flow [2024-11-08 18:46:10,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=922, PETRI_PLACES=447, PETRI_TRANSITIONS=440} [2024-11-08 18:46:10,435 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -10 predicate places. [2024-11-08 18:46:10,436 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 440 transitions, 922 flow [2024-11-08 18:46:10,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:10,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:10,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:10,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:46:10,439 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:10,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1379705029, now seen corresponding path program 1 times [2024-11-08 18:46:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:10,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333416113] [2024-11-08 18:46:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:10,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:11,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:11,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333416113] [2024-11-08 18:46:11,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333416113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:11,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:11,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:11,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399863892] [2024-11-08 18:46:11,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:11,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:11,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:11,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:11,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:12,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 459 [2024-11-08 18:46:12,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 440 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:12,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:12,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 459 [2024-11-08 18:46:12,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:12,553 INFO L124 PetriNetUnfolderBase]: 366/1904 cut-off events. [2024-11-08 18:46:12,554 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:46:12,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 1904 events. 366/1904 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9472 event pairs, 364 based on Foata normal form. 0/1784 useless extension candidates. Maximal degree in co-relation 2453. Up to 886 conditions per place. [2024-11-08 18:46:12,564 INFO L140 encePairwiseOnDemand]: 441/459 looper letters, 120 selfloop transitions, 15 changer transitions 0/437 dead transitions. [2024-11-08 18:46:12,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 437 transitions, 1186 flow [2024-11-08 18:46:12,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2046 transitions. [2024-11-08 18:46:12,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7429193899782135 [2024-11-08 18:46:12,570 INFO L175 Difference]: Start difference. First operand has 447 places, 440 transitions, 922 flow. Second operand 6 states and 2046 transitions. [2024-11-08 18:46:12,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 437 transitions, 1186 flow [2024-11-08 18:46:12,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 437 transitions, 1156 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:12,580 INFO L231 Difference]: Finished difference. Result has 444 places, 437 transitions, 916 flow [2024-11-08 18:46:12,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=916, PETRI_PLACES=444, PETRI_TRANSITIONS=437} [2024-11-08 18:46:12,582 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -13 predicate places. [2024-11-08 18:46:12,582 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 437 transitions, 916 flow [2024-11-08 18:46:12,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:12,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:12,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:12,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:46:12,586 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:12,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:12,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1141104023, now seen corresponding path program 1 times [2024-11-08 18:46:12,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:12,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830034175] [2024-11-08 18:46:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:12,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:13,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:13,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830034175] [2024-11-08 18:46:13,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830034175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:46:13,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412207896] [2024-11-08 18:46:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:13,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:46:13,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:46:13,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:46:13,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:46:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:13,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:46:13,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:46:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:13,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:46:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:13,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412207896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:46:13,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:46:13,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 18:46:13,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882116000] [2024-11-08 18:46:13,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:46:13,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:46:13,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:13,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:46:13,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:46:13,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 459 [2024-11-08 18:46:13,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 437 transitions, 916 flow. Second operand has 10 states, 10 states have (on average 442.1) internal successors, (4421), 10 states have internal predecessors, (4421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:13,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:13,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 459 [2024-11-08 18:46:13,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:14,166 INFO L124 PetriNetUnfolderBase]: 7/726 cut-off events. [2024-11-08 18:46:14,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:46:14,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 726 events. 7/726 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 390 event pairs, 6 based on Foata normal form. 4/708 useless extension candidates. Maximal degree in co-relation 365. Up to 24 conditions per place. [2024-11-08 18:46:14,169 INFO L140 encePairwiseOnDemand]: 452/459 looper letters, 17 selfloop transitions, 9 changer transitions 0/446 dead transitions. [2024-11-08 18:46:14,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 446 transitions, 986 flow [2024-11-08 18:46:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:46:14,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:46:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3990 transitions. [2024-11-08 18:46:14,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9658678286129266 [2024-11-08 18:46:14,178 INFO L175 Difference]: Start difference. First operand has 444 places, 437 transitions, 916 flow. Second operand 9 states and 3990 transitions. [2024-11-08 18:46:14,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 446 transitions, 986 flow [2024-11-08 18:46:14,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 446 transitions, 956 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:14,187 INFO L231 Difference]: Finished difference. Result has 450 places, 442 transitions, 932 flow [2024-11-08 18:46:14,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=932, PETRI_PLACES=450, PETRI_TRANSITIONS=442} [2024-11-08 18:46:14,188 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, -7 predicate places. [2024-11-08 18:46:14,189 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 442 transitions, 932 flow [2024-11-08 18:46:14,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 442.1) internal successors, (4421), 10 states have internal predecessors, (4421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:14,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:14,193 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:14,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:46:14,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:46:14,397 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:14,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:14,398 INFO L85 PathProgramCache]: Analyzing trace with hash -240039465, now seen corresponding path program 2 times [2024-11-08 18:46:14,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:14,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915098189] [2024-11-08 18:46:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:14,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:15,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:15,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915098189] [2024-11-08 18:46:15,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915098189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:46:15,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416446271] [2024-11-08 18:46:15,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:46:15,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:46:15,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:46:15,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:46:15,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:46:15,702 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:46:15,702 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:46:15,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:46:15,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:46:15,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 18:46:15,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-08 18:46:15,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:46:15,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-08 18:46:15,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:46:15,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-08 18:46:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-08 18:46:15,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:46:15,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416446271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:15,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:46:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 18:46:15,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724560723] [2024-11-08 18:46:15,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:15,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:15,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:15,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:15,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:46:17,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 459 [2024-11-08 18:46:17,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 442 transitions, 932 flow. Second operand has 6 states, 6 states have (on average 374.3333333333333) internal successors, (2246), 6 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:17,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:17,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 459 [2024-11-08 18:46:17,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:18,327 INFO L124 PetriNetUnfolderBase]: 257/2032 cut-off events. [2024-11-08 18:46:18,327 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 18:46:18,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2727 conditions, 2032 events. 257/2032 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10055 event pairs, 34 based on Foata normal form. 0/1905 useless extension candidates. Maximal degree in co-relation 2222. Up to 515 conditions per place. [2024-11-08 18:46:18,338 INFO L140 encePairwiseOnDemand]: 430/459 looper letters, 91 selfloop transitions, 75 changer transitions 0/519 dead transitions. [2024-11-08 18:46:18,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 519 transitions, 1418 flow [2024-11-08 18:46:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:18,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2370 transitions. [2024-11-08 18:46:18,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8605664488017429 [2024-11-08 18:46:18,344 INFO L175 Difference]: Start difference. First operand has 450 places, 442 transitions, 932 flow. Second operand 6 states and 2370 transitions. [2024-11-08 18:46:18,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 519 transitions, 1418 flow [2024-11-08 18:46:18,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 519 transitions, 1412 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 18:46:18,354 INFO L231 Difference]: Finished difference. Result has 458 places, 510 transitions, 1406 flow [2024-11-08 18:46:18,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=458, PETRI_TRANSITIONS=510} [2024-11-08 18:46:18,356 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 1 predicate places. [2024-11-08 18:46:18,356 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 510 transitions, 1406 flow [2024-11-08 18:46:18,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.3333333333333) internal successors, (2246), 6 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:18,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:18,358 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:18,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:46:18,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 18:46:18,562 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:18,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:18,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1060932353, now seen corresponding path program 1 times [2024-11-08 18:46:18,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:18,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902690561] [2024-11-08 18:46:18,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:18,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:19,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:19,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902690561] [2024-11-08 18:46:19,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902690561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:46:19,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410634114] [2024-11-08 18:46:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:19,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:46:19,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:46:19,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:46:19,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:46:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:20,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:46:20,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:46:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:20,504 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:46:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:21,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410634114] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:46:21,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:46:21,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-08 18:46:21,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612846141] [2024-11-08 18:46:21,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:46:21,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:46:21,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:21,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:46:21,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:46:21,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 459 [2024-11-08 18:46:21,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 510 transitions, 1406 flow. Second operand has 18 states, 18 states have (on average 442.27777777777777) internal successors, (7961), 18 states have internal predecessors, (7961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:21,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:21,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 459 [2024-11-08 18:46:21,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:22,402 INFO L124 PetriNetUnfolderBase]: 120/2126 cut-off events. [2024-11-08 18:46:22,402 INFO L125 PetriNetUnfolderBase]: For 184/204 co-relation queries the response was YES. [2024-11-08 18:46:22,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2808 conditions, 2126 events. 120/2126 cut-off events. For 184/204 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7292 event pairs, 21 based on Foata normal form. 4/2042 useless extension candidates. Maximal degree in co-relation 1897. Up to 207 conditions per place. [2024-11-08 18:46:22,410 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 26 selfloop transitions, 21 changer transitions 0/534 dead transitions. [2024-11-08 18:46:22,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 534 transitions, 1600 flow [2024-11-08 18:46:22,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:46:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 18:46:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9290 transitions. [2024-11-08 18:46:22,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9637929245772383 [2024-11-08 18:46:22,433 INFO L175 Difference]: Start difference. First operand has 458 places, 510 transitions, 1406 flow. Second operand 21 states and 9290 transitions. [2024-11-08 18:46:22,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 534 transitions, 1600 flow [2024-11-08 18:46:22,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 534 transitions, 1600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:46:22,448 INFO L231 Difference]: Finished difference. Result has 483 places, 523 transitions, 1536 flow [2024-11-08 18:46:22,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1536, PETRI_PLACES=483, PETRI_TRANSITIONS=523} [2024-11-08 18:46:22,449 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 26 predicate places. [2024-11-08 18:46:22,450 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 523 transitions, 1536 flow [2024-11-08 18:46:22,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 442.27777777777777) internal successors, (7961), 18 states have internal predecessors, (7961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:22,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:22,454 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:22,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:46:22,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 18:46:22,659 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:22,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:22,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1130759041, now seen corresponding path program 2 times [2024-11-08 18:46:22,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:22,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398792718] [2024-11-08 18:46:22,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:22,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 2254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:25,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:25,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398792718] [2024-11-08 18:46:25,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398792718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:46:25,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951030671] [2024-11-08 18:46:25,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:46:25,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:46:25,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:46:25,524 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:46:25,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:46:26,175 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:46:26,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:46:26,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:46:26,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:46:26,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 18:46:26,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-08 18:46:26,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:46:26,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-08 18:46:26,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:46:26,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-08 18:46:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2254 trivial. 0 not checked. [2024-11-08 18:46:26,391 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:46:26,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951030671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:26,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:46:26,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-08 18:46:26,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812067290] [2024-11-08 18:46:26,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:26,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:26,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:26,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:46:27,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 459 [2024-11-08 18:46:27,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 523 transitions, 1536 flow. Second operand has 6 states, 6 states have (on average 381.6666666666667) internal successors, (2290), 6 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:27,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:27,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 459 [2024-11-08 18:46:27,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:28,746 INFO L124 PetriNetUnfolderBase]: 182/2290 cut-off events. [2024-11-08 18:46:28,747 INFO L125 PetriNetUnfolderBase]: For 454/488 co-relation queries the response was YES. [2024-11-08 18:46:28,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3552 conditions, 2290 events. 182/2290 cut-off events. For 454/488 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9010 event pairs, 54 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 2443. Up to 564 conditions per place. [2024-11-08 18:46:28,763 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 142 selfloop transitions, 5 changer transitions 0/522 dead transitions. [2024-11-08 18:46:28,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 522 transitions, 1828 flow [2024-11-08 18:46:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2321 transitions. [2024-11-08 18:46:28,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8427741466957154 [2024-11-08 18:46:28,770 INFO L175 Difference]: Start difference. First operand has 483 places, 523 transitions, 1536 flow. Second operand 6 states and 2321 transitions. [2024-11-08 18:46:28,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 522 transitions, 1828 flow [2024-11-08 18:46:28,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 522 transitions, 1804 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-08 18:46:28,785 INFO L231 Difference]: Finished difference. Result has 481 places, 522 transitions, 1520 flow [2024-11-08 18:46:28,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1510, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1520, PETRI_PLACES=481, PETRI_TRANSITIONS=522} [2024-11-08 18:46:28,789 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 24 predicate places. [2024-11-08 18:46:28,789 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 522 transitions, 1520 flow [2024-11-08 18:46:28,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 381.6666666666667) internal successors, (2290), 6 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:28,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:28,792 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:28,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:46:28,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 18:46:28,993 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:28,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash -165868722, now seen corresponding path program 1 times [2024-11-08 18:46:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:28,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634994754] [2024-11-08 18:46:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 2254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:31,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:31,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634994754] [2024-11-08 18:46:31,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634994754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:46:31,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631616712] [2024-11-08 18:46:31,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:31,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:46:31,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:46:31,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:46:31,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:46:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:32,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 3681 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:46:32,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:46:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 2254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:33,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:46:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 2254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:46:34,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631616712] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:46:34,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:46:34,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-08 18:46:34,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136262951] [2024-11-08 18:46:34,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:46:34,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:46:34,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:34,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:46:34,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:46:34,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 459 [2024-11-08 18:46:34,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 522 transitions, 1520 flow. Second operand has 23 states, 23 states have (on average 442.5217391304348) internal successors, (10178), 23 states have internal predecessors, (10178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:34,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:34,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 459 [2024-11-08 18:46:34,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:36,279 INFO L124 PetriNetUnfolderBase]: 120/2446 cut-off events. [2024-11-08 18:46:36,279 INFO L125 PetriNetUnfolderBase]: For 301/321 co-relation queries the response was YES. [2024-11-08 18:46:36,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3212 conditions, 2446 events. 120/2446 cut-off events. For 301/321 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7287 event pairs, 21 based on Foata normal form. 3/2362 useless extension candidates. Maximal degree in co-relation 1908. Up to 207 conditions per place. [2024-11-08 18:46:36,291 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 32 selfloop transitions, 30 changer transitions 0/548 dead transitions. [2024-11-08 18:46:36,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 548 transitions, 1784 flow [2024-11-08 18:46:36,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 18:46:36,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-08 18:46:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 13264 transitions. [2024-11-08 18:46:36,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9632534495279593 [2024-11-08 18:46:36,317 INFO L175 Difference]: Start difference. First operand has 481 places, 522 transitions, 1520 flow. Second operand 30 states and 13264 transitions. [2024-11-08 18:46:36,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 548 transitions, 1784 flow [2024-11-08 18:46:36,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 548 transitions, 1774 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:46:36,333 INFO L231 Difference]: Finished difference. Result has 509 places, 532 transitions, 1662 flow [2024-11-08 18:46:36,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1510, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1662, PETRI_PLACES=509, PETRI_TRANSITIONS=532} [2024-11-08 18:46:36,334 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 52 predicate places. [2024-11-08 18:46:36,335 INFO L471 AbstractCegarLoop]: Abstraction has has 509 places, 532 transitions, 1662 flow [2024-11-08 18:46:36,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 442.5217391304348) internal successors, (10178), 23 states have internal predecessors, (10178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:36,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:36,337 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:36,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:46:36,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 18:46:36,538 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:36,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2073317876, now seen corresponding path program 2 times [2024-11-08 18:46:36,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:36,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340665366] [2024-11-08 18:46:36,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4825 trivial. 0 not checked. [2024-11-08 18:46:41,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:41,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340665366] [2024-11-08 18:46:41,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340665366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:41,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:41,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:41,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122859323] [2024-11-08 18:46:41,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:41,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:41,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:41,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:41,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:42,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 459 [2024-11-08 18:46:42,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 532 transitions, 1662 flow. Second operand has 6 states, 6 states have (on average 383.1666666666667) internal successors, (2299), 6 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:42,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:42,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 459 [2024-11-08 18:46:42,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:44,809 INFO L124 PetriNetUnfolderBase]: 500/3515 cut-off events. [2024-11-08 18:46:44,809 INFO L125 PetriNetUnfolderBase]: For 951/1034 co-relation queries the response was YES. [2024-11-08 18:46:44,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5965 conditions, 3515 events. 500/3515 cut-off events. For 951/1034 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16044 event pairs, 92 based on Foata normal form. 16/3374 useless extension candidates. Maximal degree in co-relation 4390. Up to 1089 conditions per place. [2024-11-08 18:46:44,828 INFO L140 encePairwiseOnDemand]: 436/459 looper letters, 155 selfloop transitions, 130 changer transitions 0/669 dead transitions. [2024-11-08 18:46:44,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 669 transitions, 2882 flow [2024-11-08 18:46:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2399 transitions. [2024-11-08 18:46:44,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8710965867828613 [2024-11-08 18:46:44,832 INFO L175 Difference]: Start difference. First operand has 509 places, 532 transitions, 1662 flow. Second operand 6 states and 2399 transitions. [2024-11-08 18:46:44,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 669 transitions, 2882 flow [2024-11-08 18:46:44,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 669 transitions, 2836 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-08 18:46:44,856 INFO L231 Difference]: Finished difference. Result has 501 places, 661 transitions, 2844 flow [2024-11-08 18:46:44,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2844, PETRI_PLACES=501, PETRI_TRANSITIONS=661} [2024-11-08 18:46:44,860 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 44 predicate places. [2024-11-08 18:46:44,860 INFO L471 AbstractCegarLoop]: Abstraction has has 501 places, 661 transitions, 2844 flow [2024-11-08 18:46:44,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.1666666666667) internal successors, (2299), 6 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:44,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:44,862 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:44,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:46:44,862 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:44,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:44,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1202653249, now seen corresponding path program 1 times [2024-11-08 18:46:44,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:44,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638423328] [2024-11-08 18:46:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:44,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:50,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4825 trivial. 0 not checked. [2024-11-08 18:46:50,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:50,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638423328] [2024-11-08 18:46:50,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638423328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:50,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:50,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:50,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907697003] [2024-11-08 18:46:50,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:50,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:50,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:50,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:50,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:51,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 459 [2024-11-08 18:46:51,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 661 transitions, 2844 flow. Second operand has 6 states, 6 states have (on average 382.5) internal successors, (2295), 6 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:51,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:51,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 459 [2024-11-08 18:46:51,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:46:54,106 INFO L124 PetriNetUnfolderBase]: 776/4286 cut-off events. [2024-11-08 18:46:54,106 INFO L125 PetriNetUnfolderBase]: For 3294/3469 co-relation queries the response was YES. [2024-11-08 18:46:54,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8828 conditions, 4286 events. 776/4286 cut-off events. For 3294/3469 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22257 event pairs, 65 based on Foata normal form. 52/4173 useless extension candidates. Maximal degree in co-relation 7270. Up to 1348 conditions per place. [2024-11-08 18:46:54,143 INFO L140 encePairwiseOnDemand]: 436/459 looper letters, 276 selfloop transitions, 131 changer transitions 5/799 dead transitions. [2024-11-08 18:46:54,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 799 transitions, 4568 flow [2024-11-08 18:46:54,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:46:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:46:54,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2395 transitions. [2024-11-08 18:46:54,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8696441539578794 [2024-11-08 18:46:54,148 INFO L175 Difference]: Start difference. First operand has 501 places, 661 transitions, 2844 flow. Second operand 6 states and 2395 transitions. [2024-11-08 18:46:54,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 799 transitions, 4568 flow [2024-11-08 18:46:54,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 799 transitions, 4568 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:46:54,180 INFO L231 Difference]: Finished difference. Result has 511 places, 789 transitions, 4324 flow [2024-11-08 18:46:54,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=2844, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4324, PETRI_PLACES=511, PETRI_TRANSITIONS=789} [2024-11-08 18:46:54,181 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 54 predicate places. [2024-11-08 18:46:54,182 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 789 transitions, 4324 flow [2024-11-08 18:46:54,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 382.5) internal successors, (2295), 6 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:54,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:46:54,183 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:46:54,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:46:54,184 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:46:54,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:46:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2059324441, now seen corresponding path program 1 times [2024-11-08 18:46:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:46:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161550534] [2024-11-08 18:46:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:46:54,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:46:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:46:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4825 trivial. 0 not checked. [2024-11-08 18:46:58,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:46:58,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161550534] [2024-11-08 18:46:58,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161550534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:46:58,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:46:58,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:46:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594846091] [2024-11-08 18:46:58,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:46:58,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:46:58,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:46:58,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:46:58,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:46:59,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 459 [2024-11-08 18:46:59,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 789 transitions, 4324 flow. Second operand has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:46:59,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:46:59,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 459 [2024-11-08 18:46:59,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:47:03,675 INFO L124 PetriNetUnfolderBase]: 1308/5684 cut-off events. [2024-11-08 18:47:03,675 INFO L125 PetriNetUnfolderBase]: For 4858/4915 co-relation queries the response was YES. [2024-11-08 18:47:03,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13613 conditions, 5684 events. 1308/5684 cut-off events. For 4858/4915 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33790 event pairs, 369 based on Foata normal form. 11/5450 useless extension candidates. Maximal degree in co-relation 11971. Up to 2589 conditions per place. [2024-11-08 18:47:03,722 INFO L140 encePairwiseOnDemand]: 440/459 looper letters, 356 selfloop transitions, 84 changer transitions 0/868 dead transitions. [2024-11-08 18:47:03,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 868 transitions, 5602 flow [2024-11-08 18:47:03,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:47:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:47:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2198 transitions. [2024-11-08 18:47:03,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7981118373275236 [2024-11-08 18:47:03,726 INFO L175 Difference]: Start difference. First operand has 511 places, 789 transitions, 4324 flow. Second operand 6 states and 2198 transitions. [2024-11-08 18:47:03,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 868 transitions, 5602 flow [2024-11-08 18:47:03,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 868 transitions, 5348 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-08 18:47:03,771 INFO L231 Difference]: Finished difference. Result has 520 places, 860 transitions, 4860 flow [2024-11-08 18:47:03,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=4076, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=789, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=741, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4860, PETRI_PLACES=520, PETRI_TRANSITIONS=860} [2024-11-08 18:47:03,773 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 63 predicate places. [2024-11-08 18:47:03,773 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 860 transitions, 4860 flow [2024-11-08 18:47:03,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:47:03,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:47:03,775 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:47:03,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:47:03,775 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:47:03,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:47:03,776 INFO L85 PathProgramCache]: Analyzing trace with hash 652507370, now seen corresponding path program 1 times [2024-11-08 18:47:03,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:47:03,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384303028] [2024-11-08 18:47:03,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:47:03,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:47:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:47:44,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 69 proven. 3361 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2024-11-08 18:47:44,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:47:44,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384303028] [2024-11-08 18:47:44,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384303028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:47:44,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836730230] [2024-11-08 18:47:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:47:44,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:47:44,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:47:44,990 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:47:44,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:47:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:47:47,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 4998 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-08 18:47:47,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:47:47,950 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:47,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:48,247 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:48,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:48,755 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:48,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:49,058 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:49,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:49,584 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:49,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:49,876 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:49,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:50,424 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:50,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:50,771 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:47:50,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:47:51,407 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:47:51,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:47:52,118 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:47:52,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:47:53,283 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:47:53,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:47:53,936 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:47:53,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:47:55,107 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:47:55,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:47:55,834 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:47:55,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:47:56,982 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:47:56,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:47:57,565 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:47:57,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:47:58,731 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-08 18:47:58,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-08 18:47:59,345 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-08 18:47:59,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-08 18:48:00,534 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:48:00,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:48:01,204 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:48:01,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:48:02,587 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-08 18:48:02,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-08 18:48:04,029 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-08 18:48:04,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-08 18:48:04,160 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 13 treesize of output 9 [2024-11-08 18:48:04,220 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 25 treesize of output 24 [2024-11-08 18:48:04,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:48:04,286 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 36 treesize of output 38 [2024-11-08 18:48:04,361 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:48:04,361 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 47 treesize of output 52 [2024-11-08 18:48:04,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:48:04,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 55 [2024-11-08 18:48:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 2581 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 18:48:04,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:48:04,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836730230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:48:04,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:48:04,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [33] total 42 [2024-11-08 18:48:04,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804471829] [2024-11-08 18:48:04,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:48:04,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:48:04,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:48:04,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:48:04,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1621, Unknown=0, NotChecked=0, Total=1806 [2024-11-08 18:48:07,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 459 [2024-11-08 18:48:07,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 860 transitions, 4860 flow. Second operand has 12 states, 12 states have (on average 366.0833333333333) internal successors, (4393), 12 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:48:07,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:48:07,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 459 [2024-11-08 18:48:07,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:48:12,119 INFO L124 PetriNetUnfolderBase]: 1017/4955 cut-off events. [2024-11-08 18:48:12,119 INFO L125 PetriNetUnfolderBase]: For 6108/6315 co-relation queries the response was YES. [2024-11-08 18:48:12,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12796 conditions, 4955 events. 1017/4955 cut-off events. For 6108/6315 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 27696 event pairs, 77 based on Foata normal form. 32/4840 useless extension candidates. Maximal degree in co-relation 11205. Up to 935 conditions per place. [2024-11-08 18:48:12,163 INFO L140 encePairwiseOnDemand]: 435/459 looper letters, 428 selfloop transitions, 144 changer transitions 1/986 dead transitions. [2024-11-08 18:48:12,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 986 transitions, 6942 flow [2024-11-08 18:48:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:48:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 18:48:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 6616 transitions. [2024-11-08 18:48:12,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8007746308399903 [2024-11-08 18:48:12,171 INFO L175 Difference]: Start difference. First operand has 520 places, 860 transitions, 4860 flow. Second operand 18 states and 6616 transitions. [2024-11-08 18:48:12,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 986 transitions, 6942 flow [2024-11-08 18:48:12,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 986 transitions, 6870 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-11-08 18:48:12,225 INFO L231 Difference]: Finished difference. Result has 549 places, 918 transitions, 5814 flow [2024-11-08 18:48:12,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=4806, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=860, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5814, PETRI_PLACES=549, PETRI_TRANSITIONS=918} [2024-11-08 18:48:12,227 INFO L277 CegarLoopForPetriNet]: 457 programPoint places, 92 predicate places. [2024-11-08 18:48:12,228 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 918 transitions, 5814 flow [2024-11-08 18:48:12,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 366.0833333333333) internal successors, (4393), 12 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:48:12,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:48:12,230 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:48:12,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:48:12,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 18:48:12,431 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:48:12,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:48:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1631882254, now seen corresponding path program 2 times [2024-11-08 18:48:12,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:48:12,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212385915] [2024-11-08 18:48:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:48:12,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:48:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:48:56,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 374 proven. 3397 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2024-11-08 18:48:56,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:48:56,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212385915] [2024-11-08 18:48:56,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212385915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:48:56,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172450491] [2024-11-08 18:48:56,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:48:56,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:48:56,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:48:56,921 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:48:56,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:49:20,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:49:20,012 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:49:20,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 4998 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-11-08 18:49:20,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:49:20,250 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:49:20,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:49:20,490 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:49:20,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:49:21,092 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 18:49:21,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:49:21,339 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:49:21,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:49:22,634 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-08 18:49:22,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-08 18:49:23,705 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-11-08 18:49:23,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2024-11-08 18:49:27,155 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2024-11-08 18:49:27,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2024-11-08 18:49:29,742 INFO L349 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2024-11-08 18:49:29,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2024-11-08 18:49:38,654 INFO L349 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2024-11-08 18:49:38,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2024-11-08 18:49:51,718 INFO L349 Elim1Store]: treesize reduction 126, result has 33.7 percent of original size [2024-11-08 18:49:51,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 47 treesize of output 93 [2024-11-08 18:50:47,338 INFO L349 Elim1Store]: treesize reduction 160, result has 31.3 percent of original size [2024-11-08 18:50:47,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 100 [2024-11-08 18:50:55,445 INFO L349 Elim1Store]: treesize reduction 160, result has 31.3 percent of original size [2024-11-08 18:50:55,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 100 [2024-11-08 18:52:59,993 INFO L349 Elim1Store]: treesize reduction 160, result has 31.3 percent of original size [2024-11-08 18:52:59,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 100 [2024-11-08 18:53:07,045 INFO L349 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2024-11-08 18:53:07,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 52 treesize of output 105 [2024-11-08 18:55:26,386 INFO L349 Elim1Store]: treesize reduction 126, result has 26.7 percent of original size [2024-11-08 18:55:26,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 52 treesize of output 78 [2024-11-08 18:55:59,000 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-08 18:55:59,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-08 18:55:59,002 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-08 18:55:59,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:59,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 18:55:59,203 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:86) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:553) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 46 more [2024-11-08 18:55:59,209 INFO L158 Benchmark]: Toolchain (without parser) took 606860.67ms. Allocated memory was 125.8MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 90.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2024-11-08 18:55:59,209 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:55:59,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1120.42ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 90.4MB in the beginning and 121.1MB in the end (delta: -30.6MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-08 18:55:59,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.50ms. Allocated memory is still 161.5MB. Free memory was 120.1MB in the beginning and 114.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:55:59,210 INFO L158 Benchmark]: Boogie Preprocessor took 102.96ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 109.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:55:59,210 INFO L158 Benchmark]: RCFGBuilder took 1291.09ms. Allocated memory is still 161.5MB. Free memory was 109.6MB in the beginning and 114.2MB in the end (delta: -4.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-08 18:55:59,216 INFO L158 Benchmark]: TraceAbstraction took 604220.82ms. Allocated memory was 161.5MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 113.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2024-11-08 18:55:59,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1120.42ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 90.4MB in the beginning and 121.1MB in the end (delta: -30.6MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.50ms. Allocated memory is still 161.5MB. Free memory was 120.1MB in the beginning and 114.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.96ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 109.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1291.09ms. Allocated memory is still 161.5MB. Free memory was 109.6MB in the beginning and 114.2MB in the end (delta: -4.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 604220.82ms. Allocated memory was 161.5MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 113.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:56:01,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:56:01,778 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2024-11-08 18:56:01,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:56:01,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:56:01,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:56:01,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:56:01,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:56:01,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:56:01,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:56:01,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:56:01,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:56:01,838 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:56:01,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:56:01,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:56:01,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:56:01,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:56:01,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:56:01,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:56:01,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:56:01,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:56:01,848 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:56:01,849 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:56:01,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:56:01,849 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:56:01,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:56:01,850 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:56:01,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:56:01,850 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:56:01,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:56:01,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:56:01,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:56:01,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:56:01,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:56:01,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:56:01,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:56:01,854 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:56:01,854 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:56:01,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:56:01,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:56:01,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:56:01,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:56:01,856 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2024-11-08 18:56:02,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:56:02,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:56:02,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:56:02,306 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:56:02,307 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:56:02,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i Unable to find full path for "g++" [2024-11-08 18:56:04,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:56:04,865 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:56:04,866 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-11-08 18:56:04,885 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data/7207cc694/24982d187ead408692bb8b1b62957ecf/FLAG2e261b5d6 [2024-11-08 18:56:05,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/data/7207cc694/24982d187ead408692bb8b1b62957ecf [2024-11-08 18:56:05,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:56:05,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:56:05,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:56:05,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:56:05,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:56:05,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:56:05" (1/1) ... [2024-11-08 18:56:05,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df0069c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:05, skipping insertion in model container [2024-11-08 18:56:05,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:56:05" (1/1) ... [2024-11-08 18:56:05,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:56:05,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:56:05,964 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:56:06,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:56:06,148 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:56:06,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06 WrapperNode [2024-11-08 18:56:06,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:56:06,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:56:06,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:56:06,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:56:06,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,274 INFO L138 Inliner]: procedures = 373, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 389 [2024-11-08 18:56:06,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:56:06,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:56:06,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:56:06,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:56:06,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,298 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:56:06,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:56:06,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:56:06,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:56:06,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (1/1) ... [2024-11-08 18:56:06,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:56:06,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:06,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:56:06,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:56:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 18:56:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 18:56:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 18:56:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 18:56:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-08 18:56:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:56:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:56:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:56:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:56:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 18:56:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:56:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:56:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:56:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:56:06,486 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:56:06,732 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:56:06,735 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:56:08,178 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:56:08,180 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:56:08,244 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:56:08,247 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:56:08,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:56:08 BoogieIcfgContainer [2024-11-08 18:56:08,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:56:08,250 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:56:08,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:56:08,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:56:08,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:56:05" (1/3) ... [2024-11-08 18:56:08,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbb9aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:56:08, skipping insertion in model container [2024-11-08 18:56:08,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:06" (2/3) ... [2024-11-08 18:56:08,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbb9aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:56:08, skipping insertion in model container [2024-11-08 18:56:08,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:56:08" (3/3) ... [2024-11-08 18:56:08,260 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2024-11-08 18:56:08,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:56:08,282 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-08 18:56:08,283 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:56:08,486 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:56:08,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 456 places, 457 transitions, 918 flow [2024-11-08 18:56:08,780 INFO L124 PetriNetUnfolderBase]: 5/456 cut-off events. [2024-11-08 18:56:08,781 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:56:08,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 456 events. 5/456 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 366 event pairs, 0 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 329. Up to 2 conditions per place. [2024-11-08 18:56:08,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 457 transitions, 918 flow [2024-11-08 18:56:08,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 455 places, 456 transitions, 915 flow [2024-11-08 18:56:08,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:56:08,827 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;@26187b46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:56:08,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-08 18:56:08,854 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:56:08,855 INFO L124 PetriNetUnfolderBase]: 2/106 cut-off events. [2024-11-08 18:56:08,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:56:08,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:08,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:08,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:08,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:08,863 INFO L85 PathProgramCache]: Analyzing trace with hash -857261944, now seen corresponding path program 1 times [2024-11-08 18:56:08,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:08,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960226697] [2024-11-08 18:56:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:08,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:08,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:08,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:08,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:56:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:09,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:56:09,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:09,207 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 9 [2024-11-08 18:56:09,285 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 23 treesize of output 26 [2024-11-08 18:56:09,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:09,382 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 34 treesize of output 42 [2024-11-08 18:56:09,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:09,454 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 45 treesize of output 58 [2024-11-08 18:56:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:09,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:09,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:09,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960226697] [2024-11-08 18:56:09,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960226697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:09,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:09,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:09,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663802639] [2024-11-08 18:56:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:09,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:09,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:09,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:09,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:11,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 457 [2024-11-08 18:56:11,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 456 transitions, 915 flow. Second operand has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:11,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:11,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 457 [2024-11-08 18:56:11,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:12,737 INFO L124 PetriNetUnfolderBase]: 366/1812 cut-off events. [2024-11-08 18:56:12,737 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:56:12,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 1812 events. 366/1812 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9529 event pairs, 364 based on Foata normal form. 13/1687 useless extension candidates. Maximal degree in co-relation 2255. Up to 837 conditions per place. [2024-11-08 18:56:12,758 INFO L140 encePairwiseOnDemand]: 436/457 looper letters, 108 selfloop transitions, 15 changer transitions 2/450 dead transitions. [2024-11-08 18:56:12,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 450 transitions, 1149 flow [2024-11-08 18:56:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2097 transitions. [2024-11-08 18:56:12,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7647702407002188 [2024-11-08 18:56:12,797 INFO L175 Difference]: Start difference. First operand has 455 places, 456 transitions, 915 flow. Second operand 6 states and 2097 transitions. [2024-11-08 18:56:12,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 450 transitions, 1149 flow [2024-11-08 18:56:12,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 450 transitions, 1148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:56:12,813 INFO L231 Difference]: Finished difference. Result has 456 places, 448 transitions, 928 flow [2024-11-08 18:56:12,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=928, PETRI_PLACES=456, PETRI_TRANSITIONS=448} [2024-11-08 18:56:12,820 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 1 predicate places. [2024-11-08 18:56:12,820 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 448 transitions, 928 flow [2024-11-08 18:56:12,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:12,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:12,823 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] [2024-11-08 18:56:12,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:56:13,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:13,025 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:13,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:13,026 INFO L85 PathProgramCache]: Analyzing trace with hash 581007831, now seen corresponding path program 1 times [2024-11-08 18:56:13,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:13,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545782447] [2024-11-08 18:56:13,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:13,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:13,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:13,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:13,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:56:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:13,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:56:13,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:13,260 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 13 treesize of output 11 [2024-11-08 18:56:13,287 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 25 treesize of output 28 [2024-11-08 18:56:13,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:13,330 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 36 treesize of output 44 [2024-11-08 18:56:13,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:13,391 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 47 treesize of output 60 [2024-11-08 18:56:13,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:13,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:13,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:13,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545782447] [2024-11-08 18:56:13,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545782447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:13,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:13,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:13,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234114923] [2024-11-08 18:56:13,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:13,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:13,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:13,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:13,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:15,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 457 [2024-11-08 18:56:15,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 448 transitions, 928 flow. Second operand has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:15,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:15,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 457 [2024-11-08 18:56:15,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:16,402 INFO L124 PetriNetUnfolderBase]: 366/1807 cut-off events. [2024-11-08 18:56:16,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:56:16,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2678 conditions, 1807 events. 366/1807 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9488 event pairs, 364 based on Foata normal form. 0/1674 useless extension candidates. Maximal degree in co-relation 2398. Up to 837 conditions per place. [2024-11-08 18:56:16,415 INFO L140 encePairwiseOnDemand]: 439/457 looper letters, 108 selfloop transitions, 15 changer transitions 0/445 dead transitions. [2024-11-08 18:56:16,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 445 transitions, 1168 flow [2024-11-08 18:56:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2094 transitions. [2024-11-08 18:56:16,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7636761487964989 [2024-11-08 18:56:16,430 INFO L175 Difference]: Start difference. First operand has 456 places, 448 transitions, 928 flow. Second operand 6 states and 2094 transitions. [2024-11-08 18:56:16,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 445 transitions, 1168 flow [2024-11-08 18:56:16,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 445 transitions, 1138 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:56:16,446 INFO L231 Difference]: Finished difference. Result has 451 places, 445 transitions, 922 flow [2024-11-08 18:56:16,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=922, PETRI_PLACES=451, PETRI_TRANSITIONS=445} [2024-11-08 18:56:16,448 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, -4 predicate places. [2024-11-08 18:56:16,448 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 445 transitions, 922 flow [2024-11-08 18:56:16,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:16,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:16,450 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] [2024-11-08 18:56:16,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:56:16,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:16,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:16,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:16,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1913075061, now seen corresponding path program 1 times [2024-11-08 18:56:16,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:16,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390937110] [2024-11-08 18:56:16,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:16,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:16,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:16,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:16,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:56:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:16,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:56:16,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:17,178 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 9 [2024-11-08 18:56:17,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-11-08 18:56:17,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:17,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2024-11-08 18:56:17,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:17,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2024-11-08 18:56:17,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:17,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:17,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:17,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390937110] [2024-11-08 18:56:17,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390937110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:17,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:17,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:56:17,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107121861] [2024-11-08 18:56:17,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:17,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:56:17,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:17,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:56:17,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:56:19,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 457 [2024-11-08 18:56:19,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 445 transitions, 922 flow. Second operand has 9 states, 9 states have (on average 314.44444444444446) internal successors, (2830), 9 states have internal predecessors, (2830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:19,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:19,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 457 [2024-11-08 18:56:19,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:20,256 INFO L124 PetriNetUnfolderBase]: 392/2006 cut-off events. [2024-11-08 18:56:20,256 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 18:56:20,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3007 conditions, 2006 events. 392/2006 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10265 event pairs, 390 based on Foata normal form. 2/1868 useless extension candidates. Maximal degree in co-relation 2525. Up to 922 conditions per place. [2024-11-08 18:56:20,267 INFO L140 encePairwiseOnDemand]: 442/457 looper letters, 179 selfloop transitions, 12 changer transitions 0/494 dead transitions. [2024-11-08 18:56:20,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 494 transitions, 1418 flow [2024-11-08 18:56:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:56:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:56:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3002 transitions. [2024-11-08 18:56:20,275 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7298808655482616 [2024-11-08 18:56:20,275 INFO L175 Difference]: Start difference. First operand has 451 places, 445 transitions, 922 flow. Second operand 9 states and 3002 transitions. [2024-11-08 18:56:20,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 494 transitions, 1418 flow [2024-11-08 18:56:20,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 494 transitions, 1372 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:56:20,287 INFO L231 Difference]: Finished difference. Result has 460 places, 455 transitions, 982 flow [2024-11-08 18:56:20,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=982, PETRI_PLACES=460, PETRI_TRANSITIONS=455} [2024-11-08 18:56:20,289 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 5 predicate places. [2024-11-08 18:56:20,289 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 455 transitions, 982 flow [2024-11-08 18:56:20,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 314.44444444444446) internal successors, (2830), 9 states have internal predecessors, (2830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:20,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:20,291 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] [2024-11-08 18:56:20,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:56:20,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:20,496 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:20,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:20,497 INFO L85 PathProgramCache]: Analyzing trace with hash 474583324, now seen corresponding path program 1 times [2024-11-08 18:56:20,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:20,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58573301] [2024-11-08 18:56:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:20,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:20,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:20,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:20,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:56:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:20,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:56:20,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:21,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:56:21,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2024-11-08 18:56:21,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:21,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2024-11-08 18:56:21,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:21,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 44 [2024-11-08 18:56:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:21,395 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:21,395 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58573301] [2024-11-08 18:56:21,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58573301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:21,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:21,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:56:21,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060170353] [2024-11-08 18:56:21,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:21,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:56:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:56:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:56:23,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 457 [2024-11-08 18:56:23,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 455 transitions, 982 flow. Second operand has 9 states, 9 states have (on average 358.22222222222223) internal successors, (3224), 9 states have internal predecessors, (3224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:23,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:23,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 457 [2024-11-08 18:56:23,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:23,749 INFO L124 PetriNetUnfolderBase]: 56/873 cut-off events. [2024-11-08 18:56:23,749 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-08 18:56:23,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 873 events. 56/873 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2247 event pairs, 54 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 914. Up to 208 conditions per place. [2024-11-08 18:56:23,757 INFO L140 encePairwiseOnDemand]: 444/457 looper letters, 131 selfloop transitions, 12 changer transitions 0/489 dead transitions. [2024-11-08 18:56:23,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 489 transitions, 1336 flow [2024-11-08 18:56:23,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:56:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:56:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3330 transitions. [2024-11-08 18:56:23,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8096280087527352 [2024-11-08 18:56:23,770 INFO L175 Difference]: Start difference. First operand has 460 places, 455 transitions, 982 flow. Second operand 9 states and 3330 transitions. [2024-11-08 18:56:23,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 489 transitions, 1336 flow [2024-11-08 18:56:23,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 489 transitions, 1332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:56:23,785 INFO L231 Difference]: Finished difference. Result has 471 places, 460 transitions, 1040 flow [2024-11-08 18:56:23,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1040, PETRI_PLACES=471, PETRI_TRANSITIONS=460} [2024-11-08 18:56:23,788 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 16 predicate places. [2024-11-08 18:56:23,788 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 460 transitions, 1040 flow [2024-11-08 18:56:23,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 358.22222222222223) internal successors, (3224), 9 states have internal predecessors, (3224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:23,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:23,791 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] [2024-11-08 18:56:23,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:56:23,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:23,992 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:23,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:23,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1619265331, now seen corresponding path program 1 times [2024-11-08 18:56:23,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:23,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209385309] [2024-11-08 18:56:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:23,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:23,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:23,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:23,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:56:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:56:24,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:24,236 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 13 treesize of output 9 [2024-11-08 18:56:24,250 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 23 treesize of output 24 [2024-11-08 18:56:24,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:24,290 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 32 treesize of output 38 [2024-11-08 18:56:24,341 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:24,341 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 41 treesize of output 52 [2024-11-08 18:56:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:24,392 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:24,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:24,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209385309] [2024-11-08 18:56:24,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209385309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:24,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:24,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:24,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616106235] [2024-11-08 18:56:24,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:24,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:24,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:26,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 457 [2024-11-08 18:56:26,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 460 transitions, 1040 flow. Second operand has 6 states, 6 states have (on average 355.5) internal successors, (2133), 6 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:26,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:26,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 457 [2024-11-08 18:56:26,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:26,435 INFO L124 PetriNetUnfolderBase]: 38/786 cut-off events. [2024-11-08 18:56:26,435 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-08 18:56:26,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 786 events. 38/786 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1748 event pairs, 36 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 809. Up to 190 conditions per place. [2024-11-08 18:56:26,439 INFO L140 encePairwiseOnDemand]: 439/457 looper letters, 89 selfloop transitions, 16 changer transitions 0/457 dead transitions. [2024-11-08 18:56:26,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 457 transitions, 1244 flow [2024-11-08 18:56:26,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2209 transitions. [2024-11-08 18:56:26,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8056163384390955 [2024-11-08 18:56:26,445 INFO L175 Difference]: Start difference. First operand has 471 places, 460 transitions, 1040 flow. Second operand 6 states and 2209 transitions. [2024-11-08 18:56:26,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 457 transitions, 1244 flow [2024-11-08 18:56:26,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 457 transitions, 1236 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:56:26,456 INFO L231 Difference]: Finished difference. Result has 470 places, 457 transitions, 1058 flow [2024-11-08 18:56:26,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1058, PETRI_PLACES=470, PETRI_TRANSITIONS=457} [2024-11-08 18:56:26,457 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 15 predicate places. [2024-11-08 18:56:26,458 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 457 transitions, 1058 flow [2024-11-08 18:56:26,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 355.5) internal successors, (2133), 6 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:26,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:26,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:26,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:56:26,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:26,664 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:26,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:26,665 INFO L85 PathProgramCache]: Analyzing trace with hash 359455089, now seen corresponding path program 1 times [2024-11-08 18:56:26,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:26,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802285037] [2024-11-08 18:56:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:26,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:26,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:26,669 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:26,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:56:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:26,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:56:26,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:26,937 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 13 treesize of output 11 [2024-11-08 18:56:26,957 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 25 treesize of output 28 [2024-11-08 18:56:26,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:26,997 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 36 treesize of output 44 [2024-11-08 18:56:27,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:27,064 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 47 treesize of output 60 [2024-11-08 18:56:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:27,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:27,114 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:27,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802285037] [2024-11-08 18:56:27,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802285037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:27,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:27,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:27,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885690839] [2024-11-08 18:56:27,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:27,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:27,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:27,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:27,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:28,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 457 [2024-11-08 18:56:28,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 457 transitions, 1058 flow. Second operand has 6 states, 6 states have (on average 319.1666666666667) internal successors, (1915), 6 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:28,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:28,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 457 [2024-11-08 18:56:28,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:28,671 INFO L124 PetriNetUnfolderBase]: 366/1908 cut-off events. [2024-11-08 18:56:28,672 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-08 18:56:28,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 1908 events. 366/1908 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9487 event pairs, 364 based on Foata normal form. 0/1784 useless extension candidates. Maximal degree in co-relation 2639. Up to 890 conditions per place. [2024-11-08 18:56:28,682 INFO L140 encePairwiseOnDemand]: 439/457 looper letters, 131 selfloop transitions, 16 changer transitions 0/454 dead transitions. [2024-11-08 18:56:28,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 454 transitions, 1346 flow [2024-11-08 18:56:28,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:28,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2019 transitions. [2024-11-08 18:56:28,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7363238512035011 [2024-11-08 18:56:28,688 INFO L175 Difference]: Start difference. First operand has 470 places, 457 transitions, 1058 flow. Second operand 6 states and 2019 transitions. [2024-11-08 18:56:28,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 454 transitions, 1346 flow [2024-11-08 18:56:28,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 454 transitions, 1314 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:56:28,698 INFO L231 Difference]: Finished difference. Result has 467 places, 454 transitions, 1052 flow [2024-11-08 18:56:28,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1052, PETRI_PLACES=467, PETRI_TRANSITIONS=454} [2024-11-08 18:56:28,702 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 12 predicate places. [2024-11-08 18:56:28,702 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 454 transitions, 1052 flow [2024-11-08 18:56:28,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 319.1666666666667) internal successors, (1915), 6 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:28,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:28,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:28,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:56:28,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:28,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:28,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:28,906 INFO L85 PathProgramCache]: Analyzing trace with hash -466313432, now seen corresponding path program 1 times [2024-11-08 18:56:28,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:28,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532641772] [2024-11-08 18:56:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:28,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:28,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:28,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:28,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:56:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:29,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:56:29,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:29,143 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 13 treesize of output 11 [2024-11-08 18:56:29,159 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 25 treesize of output 28 [2024-11-08 18:56:29,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:29,192 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 36 treesize of output 44 [2024-11-08 18:56:29,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:29,239 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 47 treesize of output 60 [2024-11-08 18:56:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:29,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:29,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:29,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532641772] [2024-11-08 18:56:29,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532641772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:29,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:29,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:29,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860998791] [2024-11-08 18:56:29,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:29,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:29,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:30,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 457 [2024-11-08 18:56:30,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 454 transitions, 1052 flow. Second operand has 6 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:30,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:30,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 457 [2024-11-08 18:56:30,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:31,443 INFO L124 PetriNetUnfolderBase]: 366/1904 cut-off events. [2024-11-08 18:56:31,443 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-08 18:56:31,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2900 conditions, 1904 events. 366/1904 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9459 event pairs, 364 based on Foata normal form. 0/1784 useless extension candidates. Maximal degree in co-relation 2633. Up to 886 conditions per place. [2024-11-08 18:56:31,451 INFO L140 encePairwiseOnDemand]: 439/457 looper letters, 129 selfloop transitions, 15 changer transitions 0/451 dead transitions. [2024-11-08 18:56:31,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 451 transitions, 1334 flow [2024-11-08 18:56:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:31,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2034 transitions. [2024-11-08 18:56:31,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7417943107221007 [2024-11-08 18:56:31,456 INFO L175 Difference]: Start difference. First operand has 467 places, 454 transitions, 1052 flow. Second operand 6 states and 2034 transitions. [2024-11-08 18:56:31,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 451 transitions, 1334 flow [2024-11-08 18:56:31,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 451 transitions, 1302 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:56:31,466 INFO L231 Difference]: Finished difference. Result has 464 places, 451 transitions, 1044 flow [2024-11-08 18:56:31,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1044, PETRI_PLACES=464, PETRI_TRANSITIONS=451} [2024-11-08 18:56:31,468 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 9 predicate places. [2024-11-08 18:56:31,468 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 451 transitions, 1044 flow [2024-11-08 18:56:31,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:31,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:31,470 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:31,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:31,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:31,671 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:31,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:31,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1766505448, now seen corresponding path program 1 times [2024-11-08 18:56:31,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:31,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1502885274] [2024-11-08 18:56:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:31,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:31,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:31,674 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:31,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:56:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:31,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:56:31,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:32,862 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 9 [2024-11-08 18:56:32,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-11-08 18:56:32,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:32,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2024-11-08 18:56:33,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:33,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2024-11-08 18:56:33,071 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:33,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 18:56:33,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:33,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502885274] [2024-11-08 18:56:33,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502885274] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:56:33,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:56:33,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 18:56:33,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784127763] [2024-11-08 18:56:33,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:33,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:33,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:33,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:56:35,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 457 [2024-11-08 18:56:35,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 451 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 334.1666666666667) internal successors, (2005), 6 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:35,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:35,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 457 [2024-11-08 18:56:35,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:36,238 INFO L124 PetriNetUnfolderBase]: 392/1992 cut-off events. [2024-11-08 18:56:36,238 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-08 18:56:36,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3030 conditions, 1992 events. 392/1992 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10261 event pairs, 390 based on Foata normal form. 1/1866 useless extension candidates. Maximal degree in co-relation 2763. Up to 939 conditions per place. [2024-11-08 18:56:36,248 INFO L140 encePairwiseOnDemand]: 451/457 looper letters, 128 selfloop transitions, 10 changer transitions 0/450 dead transitions. [2024-11-08 18:56:36,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 450 transitions, 1316 flow [2024-11-08 18:56:36,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:36,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2084 transitions. [2024-11-08 18:56:36,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7600291757840992 [2024-11-08 18:56:36,252 INFO L175 Difference]: Start difference. First operand has 464 places, 451 transitions, 1044 flow. Second operand 6 states and 2084 transitions. [2024-11-08 18:56:36,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 450 transitions, 1316 flow [2024-11-08 18:56:36,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 450 transitions, 1286 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:56:36,260 INFO L231 Difference]: Finished difference. Result has 463 places, 450 transitions, 1030 flow [2024-11-08 18:56:36,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1010, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=463, PETRI_TRANSITIONS=450} [2024-11-08 18:56:36,262 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 8 predicate places. [2024-11-08 18:56:36,262 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 450 transitions, 1030 flow [2024-11-08 18:56:36,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.1666666666667) internal successors, (2005), 6 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:36,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:36,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:36,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:56:36,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:36,464 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:36,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:36,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1048950836, now seen corresponding path program 1 times [2024-11-08 18:56:36,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:36,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42046341] [2024-11-08 18:56:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:36,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:36,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:36,467 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:36,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:56:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:36,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:56:36,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:36,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:37,265 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:37,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42046341] [2024-11-08 18:56:37,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42046341] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:56:37,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:56:37,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-08 18:56:37,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599371757] [2024-11-08 18:56:37,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:56:37,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:56:37,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:37,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:56:37,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:56:37,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 457 [2024-11-08 18:56:37,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 450 transitions, 1030 flow. Second operand has 8 states, 8 states have (on average 440.0) internal successors, (3520), 8 states have internal predecessors, (3520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:37,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:37,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 457 [2024-11-08 18:56:37,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:37,782 INFO L124 PetriNetUnfolderBase]: 7/726 cut-off events. [2024-11-08 18:56:37,783 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-08 18:56:37,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 726 events. 7/726 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 400 event pairs, 6 based on Foata normal form. 4/708 useless extension candidates. Maximal degree in co-relation 449. Up to 24 conditions per place. [2024-11-08 18:56:37,786 INFO L140 encePairwiseOnDemand]: 450/457 looper letters, 17 selfloop transitions, 9 changer transitions 0/459 dead transitions. [2024-11-08 18:56:37,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 459 transitions, 1100 flow [2024-11-08 18:56:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:56:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:56:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3972 transitions. [2024-11-08 18:56:37,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9657184536834428 [2024-11-08 18:56:37,793 INFO L175 Difference]: Start difference. First operand has 463 places, 450 transitions, 1030 flow. Second operand 9 states and 3972 transitions. [2024-11-08 18:56:37,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 459 transitions, 1100 flow [2024-11-08 18:56:37,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 459 transitions, 1080 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:56:37,803 INFO L231 Difference]: Finished difference. Result has 469 places, 455 transitions, 1056 flow [2024-11-08 18:56:37,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1056, PETRI_PLACES=469, PETRI_TRANSITIONS=455} [2024-11-08 18:56:37,804 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 14 predicate places. [2024-11-08 18:56:37,804 INFO L471 AbstractCegarLoop]: Abstraction has has 469 places, 455 transitions, 1056 flow [2024-11-08 18:56:37,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 440.0) internal successors, (3520), 8 states have internal predecessors, (3520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:37,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:37,807 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:37,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:38,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:38,011 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:38,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1110550425, now seen corresponding path program 1 times [2024-11-08 18:56:38,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:38,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087874114] [2024-11-08 18:56:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:38,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:38,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:38,014 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:38,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:56:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:38,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:56:38,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:39,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:56:39,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2024-11-08 18:56:39,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:39,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2024-11-08 18:56:39,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:39,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 44 [2024-11-08 18:56:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:39,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-08 18:56:39,526 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:39,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087874114] [2024-11-08 18:56:39,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087874114] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:56:39,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:56:39,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 18:56:39,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175171340] [2024-11-08 18:56:39,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:39,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:56:42,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 457 [2024-11-08 18:56:42,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 455 transitions, 1056 flow. Second operand has 6 states, 6 states have (on average 375.1666666666667) internal successors, (2251), 6 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:42,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:42,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 457 [2024-11-08 18:56:42,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:43,225 INFO L124 PetriNetUnfolderBase]: 55/967 cut-off events. [2024-11-08 18:56:43,225 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-08 18:56:43,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 967 events. 55/967 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1997 event pairs, 54 based on Foata normal form. 2/921 useless extension candidates. Maximal degree in co-relation 851. Up to 249 conditions per place. [2024-11-08 18:56:43,228 INFO L140 encePairwiseOnDemand]: 451/457 looper letters, 86 selfloop transitions, 10 changer transitions 0/454 dead transitions. [2024-11-08 18:56:43,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 454 transitions, 1244 flow [2024-11-08 18:56:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:43,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:43,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2294 transitions. [2024-11-08 18:56:43,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8366156090444931 [2024-11-08 18:56:43,232 INFO L175 Difference]: Start difference. First operand has 469 places, 455 transitions, 1056 flow. Second operand 6 states and 2294 transitions. [2024-11-08 18:56:43,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 454 transitions, 1244 flow [2024-11-08 18:56:43,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 454 transitions, 1242 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-08 18:56:43,239 INFO L231 Difference]: Finished difference. Result has 473 places, 454 transitions, 1070 flow [2024-11-08 18:56:43,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1070, PETRI_PLACES=473, PETRI_TRANSITIONS=454} [2024-11-08 18:56:43,240 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 18 predicate places. [2024-11-08 18:56:43,240 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 454 transitions, 1070 flow [2024-11-08 18:56:43,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.1666666666667) internal successors, (2251), 6 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:43,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:43,241 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:43,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:43,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:43,442 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:43,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:43,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1775096748, now seen corresponding path program 2 times [2024-11-08 18:56:43,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:43,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062375812] [2024-11-08 18:56:43,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:56:43,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:43,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:43,446 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:43,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:56:43,760 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:56:43,760 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:56:43,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:56:43,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:43,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 18:56:43,810 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 29 [2024-11-08 18:56:43,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:43,853 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 46 [2024-11-08 18:56:43,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:43,910 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 63 [2024-11-08 18:56:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-08 18:56:43,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:43,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:43,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062375812] [2024-11-08 18:56:43,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062375812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:43,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:43,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:43,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626715786] [2024-11-08 18:56:43,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:43,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:43,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:43,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:43,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:46,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 457 [2024-11-08 18:56:46,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 454 transitions, 1070 flow. Second operand has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:46,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:46,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 457 [2024-11-08 18:56:46,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:47,401 INFO L124 PetriNetUnfolderBase]: 257/2050 cut-off events. [2024-11-08 18:56:47,401 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-08 18:56:47,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 2050 events. 257/2050 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10189 event pairs, 34 based on Foata normal form. 0/1923 useless extension candidates. Maximal degree in co-relation 2353. Up to 515 conditions per place. [2024-11-08 18:56:47,411 INFO L140 encePairwiseOnDemand]: 428/457 looper letters, 96 selfloop transitions, 75 changer transitions 0/531 dead transitions. [2024-11-08 18:56:47,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 531 transitions, 1566 flow [2024-11-08 18:56:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:47,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2358 transitions. [2024-11-08 18:56:47,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8599562363238512 [2024-11-08 18:56:47,417 INFO L175 Difference]: Start difference. First operand has 473 places, 454 transitions, 1070 flow. Second operand 6 states and 2358 transitions. [2024-11-08 18:56:47,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 531 transitions, 1566 flow [2024-11-08 18:56:47,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 531 transitions, 1546 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:56:47,427 INFO L231 Difference]: Finished difference. Result has 477 places, 522 transitions, 1530 flow [2024-11-08 18:56:47,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1530, PETRI_PLACES=477, PETRI_TRANSITIONS=522} [2024-11-08 18:56:47,428 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 22 predicate places. [2024-11-08 18:56:47,429 INFO L471 AbstractCegarLoop]: Abstraction has has 477 places, 522 transitions, 1530 flow [2024-11-08 18:56:47,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:47,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:47,430 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:47,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 18:56:47,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:47,631 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:47,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:47,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1791349499, now seen corresponding path program 1 times [2024-11-08 18:56:47,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:47,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771629002] [2024-11-08 18:56:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:47,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:47,634 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:47,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:56:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:48,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:56:48,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:48,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:49,564 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:49,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771629002] [2024-11-08 18:56:49,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771629002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:56:49,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:56:49,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-08 18:56:49,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594527865] [2024-11-08 18:56:49,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:56:49,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 18:56:49,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:49,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 18:56:49,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:56:50,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 457 [2024-11-08 18:56:50,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 522 transitions, 1530 flow. Second operand has 16 states, 16 states have (on average 440.25) internal successors, (7044), 16 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:50,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:50,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 457 [2024-11-08 18:56:50,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:51,796 INFO L124 PetriNetUnfolderBase]: 120/2124 cut-off events. [2024-11-08 18:56:51,797 INFO L125 PetriNetUnfolderBase]: For 208/228 co-relation queries the response was YES. [2024-11-08 18:56:51,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 2124 events. 120/2124 cut-off events. For 208/228 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7294 event pairs, 21 based on Foata normal form. 4/2040 useless extension candidates. Maximal degree in co-relation 1989. Up to 207 conditions per place. [2024-11-08 18:56:51,809 INFO L140 encePairwiseOnDemand]: 451/457 looper letters, 26 selfloop transitions, 21 changer transitions 0/546 dead transitions. [2024-11-08 18:56:51,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 546 transitions, 1732 flow [2024-11-08 18:56:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:56:51,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 18:56:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9248 transitions. [2024-11-08 18:56:51,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9636344691049287 [2024-11-08 18:56:51,822 INFO L175 Difference]: Start difference. First operand has 477 places, 522 transitions, 1530 flow. Second operand 21 states and 9248 transitions. [2024-11-08 18:56:51,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 546 transitions, 1732 flow [2024-11-08 18:56:51,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 546 transitions, 1732 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:56:51,836 INFO L231 Difference]: Finished difference. Result has 502 places, 535 transitions, 1668 flow [2024-11-08 18:56:51,836 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1530, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1668, PETRI_PLACES=502, PETRI_TRANSITIONS=535} [2024-11-08 18:56:51,837 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 47 predicate places. [2024-11-08 18:56:51,837 INFO L471 AbstractCegarLoop]: Abstraction has has 502 places, 535 transitions, 1668 flow [2024-11-08 18:56:51,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 440.25) internal successors, (7044), 16 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:51,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:51,841 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:51,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 18:56:52,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:52,041 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:52,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash 357918021, now seen corresponding path program 2 times [2024-11-08 18:56:52,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:52,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124844618] [2024-11-08 18:56:52,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:56:52,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:52,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:52,054 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:52,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:56:52,583 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:56:52,583 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:56:52,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:56:52,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:52,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 18:56:52,651 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 29 [2024-11-08 18:56:52,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:52,686 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 46 [2024-11-08 18:56:52,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:52,737 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 63 [2024-11-08 18:56:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2254 trivial. 0 not checked. [2024-11-08 18:56:52,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:52,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:52,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124844618] [2024-11-08 18:56:52,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124844618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:52,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:52,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:52,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861232499] [2024-11-08 18:56:52,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:52,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:52,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:52,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:52,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:55,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 457 [2024-11-08 18:56:55,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 535 transitions, 1668 flow. Second operand has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 6 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:55,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:55,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 457 [2024-11-08 18:56:55,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:56,300 INFO L124 PetriNetUnfolderBase]: 182/2288 cut-off events. [2024-11-08 18:56:56,301 INFO L125 PetriNetUnfolderBase]: For 491/522 co-relation queries the response was YES. [2024-11-08 18:56:56,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3684 conditions, 2288 events. 182/2288 cut-off events. For 491/522 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9107 event pairs, 54 based on Foata normal form. 0/2186 useless extension candidates. Maximal degree in co-relation 2555. Up to 564 conditions per place. [2024-11-08 18:56:56,316 INFO L140 encePairwiseOnDemand]: 451/457 looper letters, 147 selfloop transitions, 5 changer transitions 0/534 dead transitions. [2024-11-08 18:56:56,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 534 transitions, 1970 flow [2024-11-08 18:56:56,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:56:56,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2309 transitions. [2024-11-08 18:56:56,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8420860685630926 [2024-11-08 18:56:56,323 INFO L175 Difference]: Start difference. First operand has 502 places, 535 transitions, 1668 flow. Second operand 6 states and 2309 transitions. [2024-11-08 18:56:56,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 534 transitions, 1970 flow [2024-11-08 18:56:56,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 534 transitions, 1938 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-08 18:56:56,337 INFO L231 Difference]: Finished difference. Result has 500 places, 534 transitions, 1644 flow [2024-11-08 18:56:56,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1634, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1644, PETRI_PLACES=500, PETRI_TRANSITIONS=534} [2024-11-08 18:56:56,339 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 45 predicate places. [2024-11-08 18:56:56,339 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 534 transitions, 1644 flow [2024-11-08 18:56:56,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 6 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:56:56,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:56,341 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:56,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:56,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:56,542 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:56:56,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1256100836, now seen corresponding path program 1 times [2024-11-08 18:56:56,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:56,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486541203] [2024-11-08 18:56:56,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:56,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:56,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:56,546 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:56,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:56:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:57,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:56:57,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:58,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 2254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:58,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 0 proven. 2254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:03,309 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:03,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486541203] [2024-11-08 18:57:03,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486541203] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:57:03,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:57:03,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2024-11-08 18:57:03,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032427021] [2024-11-08 18:57:03,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:57:03,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-08 18:57:03,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:03,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-08 18:57:03,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 18:57:08,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 457 [2024-11-08 18:57:08,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 534 transitions, 1644 flow. Second operand has 33 states, 33 states have (on average 440.3636363636364) internal successors, (14532), 33 states have internal predecessors, (14532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:08,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:08,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 457 [2024-11-08 18:57:08,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:12,630 INFO L124 PetriNetUnfolderBase]: 121/2980 cut-off events. [2024-11-08 18:57:12,630 INFO L125 PetriNetUnfolderBase]: For 479/499 co-relation queries the response was YES. [2024-11-08 18:57:12,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4084 conditions, 2980 events. 121/2980 cut-off events. For 479/499 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8448 event pairs, 21 based on Foata normal form. 7/2900 useless extension candidates. Maximal degree in co-relation 2263. Up to 207 conditions per place. [2024-11-08 18:57:12,644 INFO L140 encePairwiseOnDemand]: 450/457 looper letters, 39 selfloop transitions, 49 changer transitions 0/586 dead transitions. [2024-11-08 18:57:12,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 586 transitions, 2152 flow [2024-11-08 18:57:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-08 18:57:12,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2024-11-08 18:57:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 20680 transitions. [2024-11-08 18:57:12,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.962800875273523 [2024-11-08 18:57:12,673 INFO L175 Difference]: Start difference. First operand has 500 places, 534 transitions, 1644 flow. Second operand 47 states and 20680 transitions. [2024-11-08 18:57:12,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 586 transitions, 2152 flow [2024-11-08 18:57:12,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 586 transitions, 2142 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:57:12,689 INFO L231 Difference]: Finished difference. Result has 543 places, 561 transitions, 1960 flow [2024-11-08 18:57:12,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1634, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=1960, PETRI_PLACES=543, PETRI_TRANSITIONS=561} [2024-11-08 18:57:12,690 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 88 predicate places. [2024-11-08 18:57:12,691 INFO L471 AbstractCegarLoop]: Abstraction has has 543 places, 561 transitions, 1960 flow [2024-11-08 18:57:12,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 440.3636363636364) internal successors, (14532), 33 states have internal predecessors, (14532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:12,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:12,699 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:12,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 18:57:12,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:12,900 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:57:12,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:12,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1302410559, now seen corresponding path program 2 times [2024-11-08 18:57:12,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:12,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933464602] [2024-11-08 18:57:12,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:57:12,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:12,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:12,907 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:12,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 18:57:13,741 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:57:13,741 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:57:13,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:57:13,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:13,796 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 13 treesize of output 9 [2024-11-08 18:57:13,810 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 23 treesize of output 24 [2024-11-08 18:57:13,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:13,839 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 32 treesize of output 38 [2024-11-08 18:57:13,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:13,881 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 41 treesize of output 52 [2024-11-08 18:57:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4825 trivial. 0 not checked. [2024-11-08 18:57:13,923 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:13,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933464602] [2024-11-08 18:57:13,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933464602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:13,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:13,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:57:13,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473469354] [2024-11-08 18:57:13,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:13,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:57:13,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:13,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:57:13,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:57:15,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 457 [2024-11-08 18:57:15,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 561 transitions, 1960 flow. Second operand has 6 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:15,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:15,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 457 [2024-11-08 18:57:15,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:18,645 INFO L124 PetriNetUnfolderBase]: 501/4049 cut-off events. [2024-11-08 18:57:18,645 INFO L125 PetriNetUnfolderBase]: For 1081/1153 co-relation queries the response was YES. [2024-11-08 18:57:18,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6976 conditions, 4049 events. 501/4049 cut-off events. For 1081/1153 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 17328 event pairs, 92 based on Foata normal form. 16/3908 useless extension candidates. Maximal degree in co-relation 4548. Up to 1229 conditions per place. [2024-11-08 18:57:18,661 INFO L140 encePairwiseOnDemand]: 434/457 looper letters, 160 selfloop transitions, 130 changer transitions 0/698 dead transitions. [2024-11-08 18:57:18,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 698 transitions, 3190 flow [2024-11-08 18:57:18,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:57:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:57:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2387 transitions. [2024-11-08 18:57:18,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705324580598104 [2024-11-08 18:57:18,665 INFO L175 Difference]: Start difference. First operand has 543 places, 561 transitions, 1960 flow. Second operand 6 states and 2387 transitions. [2024-11-08 18:57:18,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 698 transitions, 3190 flow [2024-11-08 18:57:18,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 698 transitions, 3075 flow, removed 34 selfloop flow, removed 23 redundant places. [2024-11-08 18:57:18,684 INFO L231 Difference]: Finished difference. Result has 530 places, 690 transitions, 3073 flow [2024-11-08 18:57:18,685 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=1845, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3073, PETRI_PLACES=530, PETRI_TRANSITIONS=690} [2024-11-08 18:57:18,686 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 75 predicate places. [2024-11-08 18:57:18,686 INFO L471 AbstractCegarLoop]: Abstraction has has 530 places, 690 transitions, 3073 flow [2024-11-08 18:57:18,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:18,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:18,687 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:18,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:18,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:18,888 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:57:18,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1143655761, now seen corresponding path program 1 times [2024-11-08 18:57:18,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:18,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653516315] [2024-11-08 18:57:18,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:18,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:18,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:18,892 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:18,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 18:57:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:20,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 3386 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:57:20,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:20,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:57:20,664 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 22 [2024-11-08 18:57:20,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:20,694 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 36 [2024-11-08 18:57:20,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:20,744 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 50 [2024-11-08 18:57:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4825 trivial. 0 not checked. [2024-11-08 18:57:20,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:20,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:20,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653516315] [2024-11-08 18:57:20,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653516315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:20,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:20,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:57:20,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667510274] [2024-11-08 18:57:20,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:20,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:57:20,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:57:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:57:22,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 457 [2024-11-08 18:57:22,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 690 transitions, 3073 flow. Second operand has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:22,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:22,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 457 [2024-11-08 18:57:22,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:25,491 INFO L124 PetriNetUnfolderBase]: 777/4844 cut-off events. [2024-11-08 18:57:25,491 INFO L125 PetriNetUnfolderBase]: For 3393/3618 co-relation queries the response was YES. [2024-11-08 18:57:25,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9839 conditions, 4844 events. 777/4844 cut-off events. For 3393/3618 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 23621 event pairs, 74 based on Foata normal form. 76/4745 useless extension candidates. Maximal degree in co-relation 7458. Up to 1488 conditions per place. [2024-11-08 18:57:25,511 INFO L140 encePairwiseOnDemand]: 434/457 looper letters, 281 selfloop transitions, 131 changer transitions 5/828 dead transitions. [2024-11-08 18:57:25,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 828 transitions, 4807 flow [2024-11-08 18:57:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:57:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:57:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2383 transitions. [2024-11-08 18:57:25,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8690736688548505 [2024-11-08 18:57:25,515 INFO L175 Difference]: Start difference. First operand has 530 places, 690 transitions, 3073 flow. Second operand 6 states and 2383 transitions. [2024-11-08 18:57:25,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 828 transitions, 4807 flow [2024-11-08 18:57:25,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 828 transitions, 4776 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:57:25,543 INFO L231 Difference]: Finished difference. Result has 538 places, 818 transitions, 4522 flow [2024-11-08 18:57:25,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=3042, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4522, PETRI_PLACES=538, PETRI_TRANSITIONS=818} [2024-11-08 18:57:25,544 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 83 predicate places. [2024-11-08 18:57:25,545 INFO L471 AbstractCegarLoop]: Abstraction has has 538 places, 818 transitions, 4522 flow [2024-11-08 18:57:25,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:25,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:25,608 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:25,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 18:57:25,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:25,809 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:57:25,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1640752031, now seen corresponding path program 1 times [2024-11-08 18:57:25,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:25,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110004337] [2024-11-08 18:57:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:25,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:25,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:25,817 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:25,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 18:57:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:27,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 3378 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:57:27,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:27,717 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 9 [2024-11-08 18:57:27,729 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 23 treesize of output 26 [2024-11-08 18:57:27,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:27,764 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 34 treesize of output 42 [2024-11-08 18:57:27,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:27,810 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 45 treesize of output 58 [2024-11-08 18:57:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4825 trivial. 0 not checked. [2024-11-08 18:57:27,865 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:27,866 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:27,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110004337] [2024-11-08 18:57:27,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110004337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:27,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:27,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:57:27,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025271904] [2024-11-08 18:57:27,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:27,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:57:27,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:27,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:57:27,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:57:29,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 457 [2024-11-08 18:57:29,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 818 transitions, 4522 flow. Second operand has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:29,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:29,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 457 [2024-11-08 18:57:29,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:33,498 INFO L124 PetriNetUnfolderBase]: 1309/6218 cut-off events. [2024-11-08 18:57:33,498 INFO L125 PetriNetUnfolderBase]: For 4926/4983 co-relation queries the response was YES. [2024-11-08 18:57:33,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14601 conditions, 6218 events. 1309/6218 cut-off events. For 4926/4983 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 35272 event pairs, 369 based on Foata normal form. 11/5984 useless extension candidates. Maximal degree in co-relation 12126. Up to 2769 conditions per place. [2024-11-08 18:57:33,538 INFO L140 encePairwiseOnDemand]: 438/457 looper letters, 365 selfloop transitions, 84 changer transitions 0/897 dead transitions. [2024-11-08 18:57:33,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 897 transitions, 5818 flow [2024-11-08 18:57:33,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:57:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:57:33,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2186 transitions. [2024-11-08 18:57:33,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7972283005105762 [2024-11-08 18:57:33,543 INFO L175 Difference]: Start difference. First operand has 538 places, 818 transitions, 4522 flow. Second operand 6 states and 2186 transitions. [2024-11-08 18:57:33,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 897 transitions, 5818 flow [2024-11-08 18:57:33,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 897 transitions, 5564 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-08 18:57:33,584 INFO L231 Difference]: Finished difference. Result has 547 places, 889 transitions, 5058 flow [2024-11-08 18:57:33,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=4274, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=770, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5058, PETRI_PLACES=547, PETRI_TRANSITIONS=889} [2024-11-08 18:57:33,586 INFO L277 CegarLoopForPetriNet]: 455 programPoint places, 92 predicate places. [2024-11-08 18:57:33,586 INFO L471 AbstractCegarLoop]: Abstraction has has 547 places, 889 transitions, 5058 flow [2024-11-08 18:57:33,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:33,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:33,588 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:33,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-08 18:57:33,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:33,789 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 18:57:33,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:33,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1691879621, now seen corresponding path program 1 times [2024-11-08 18:57:33,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:33,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311609404] [2024-11-08 18:57:33,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:33,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:33,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:33,796 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:33,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cadde25f-f155-4809-a0b4-07bd55a3b212/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 18:57:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:36,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 3391 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-08 18:57:36,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:37,236 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-08 18:57:37,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 18:57:37,501 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-08 18:57:37,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-08 18:57:38,789 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:38,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:39,392 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:39,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:40,682 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:40,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:41,352 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:41,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:42,569 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:42,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:43,093 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:43,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:44,102 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:44,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:44,524 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:44,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:45,508 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-08 18:57:45,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-08 18:57:45,976 INFO L349 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2024-11-08 18:57:45,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2024-11-08 18:57:47,911 INFO L349 Elim1Store]: treesize reduction 72, result has 32.1 percent of original size [2024-11-08 18:57:47,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 52 [2024-11-08 18:57:48,795 INFO L349 Elim1Store]: treesize reduction 72, result has 32.1 percent of original size [2024-11-08 18:57:48,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 52 [2024-11-08 18:57:50,432 INFO L349 Elim1Store]: treesize reduction 66, result has 34.0 percent of original size [2024-11-08 18:57:50,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 59 [2024-11-08 18:57:52,239 INFO L349 Elim1Store]: treesize reduction 64, result has 31.2 percent of original size [2024-11-08 18:57:52,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-11-08 18:57:57,214 INFO L349 Elim1Store]: treesize reduction 88, result has 33.8 percent of original size [2024-11-08 18:57:57,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 75 [2024-11-08 18:58:01,068 INFO L349 Elim1Store]: treesize reduction 120, result has 31.8 percent of original size [2024-11-08 18:58:01,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 84 [2024-11-08 18:58:09,089 INFO L349 Elim1Store]: treesize reduction 120, result has 31.8 percent of original size [2024-11-08 18:58:09,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 84 [2024-11-08 18:58:12,737 INFO L349 Elim1Store]: treesize reduction 80, result has 31.0 percent of original size [2024-11-08 18:58:12,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 68 [2024-11-08 18:58:26,273 INFO L349 Elim1Store]: treesize reduction 120, result has 31.8 percent of original size [2024-11-08 18:58:26,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 84 [2024-11-08 18:58:43,869 INFO L349 Elim1Store]: treesize reduction 30, result has 41.2 percent of original size [2024-11-08 18:58:43,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 49 [2024-11-08 18:58:43,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 18:58:44,000 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 29 [2024-11-08 18:58:44,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:44,074 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 46 [2024-11-08 18:58:44,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:44,174 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 63 [2024-11-08 18:58:44,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2024-11-08 18:58:44,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4825 backedges. 3568 proven. 22 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2024-11-08 18:58:44,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:44,514 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~j~0#1|))) (and (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) (bvadd |c_~#slot~0.offset| (_ bv1 32) .cse0)))) (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) (bvadd |c_~#slot~0.offset| (_ bv2 32) .cse0)))) (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) (bvadd |c_~#slot~0.offset| .cse0)))) (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) (bvadd |c_~#slot~0.offset| (_ bv3 32) .cse0)))))) is different from false [2024-11-08 18:58:44,560 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~j~0#1|))) (let ((.cse2 (bvadd |c_~#slot~0.offset| (_ bv3 32) .cse1))) (let ((.cse0 (store |c_#race| |c_~#slot~0.base| (store (select |c_#race| |c_~#slot~0.base|) .cse2 (_ bv0 1))))) (and (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) (bvadd |c_~#slot~0.offset| (_ bv1 32) .cse1)))) (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) (bvadd |c_~#slot~0.offset| .cse1)))) (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) (bvadd |c_~#slot~0.offset| (_ bv2 32) .cse1)))) (forall ((v_ArrVal_9230 (Array (_ BitVec 32) (_ BitVec 1)))) (= (_ bv0 1) (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_9230) |c_~#slot~0.base|) .cse2))))))) is different from false [2024-11-08 18:58:44,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:44,972 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 66 [2024-11-08 18:58:44,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:44,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 38 [2024-11-08 18:58:45,000 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-08 18:58:45,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-08 18:58:45,010 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-08 18:58:45,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-08 18:58:45,022 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-08 18:58:45,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1