./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1 --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 c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:02:21,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:02:21,680 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 13:02:21,685 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:02:21,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:02:21,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:02:21,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:02:21,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:02:21,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:02:21,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:02:21,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:02:21,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:02:21,707 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:02:21,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:02:21,708 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:02:21,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:02:21,709 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:02:21,709 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:02:21,709 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:02:21,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:02:21,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:02:21,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:02:21,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:02:21,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:02:21,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:02:21,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:02:21,711 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:02:21,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:02:21,711 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1 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 -> c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 [2024-12-02 13:02:21,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:02:21,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:02:21,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:02:21,920 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:02:21,920 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:02:21,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2024-12-02 13:02:24,560 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/data/e8bf7ac3f/863e5b7a7b204afdad826253a2f5869e/FLAG278bf82dd [2024-12-02 13:02:24,837 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:02:24,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2024-12-02 13:02:24,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/data/e8bf7ac3f/863e5b7a7b204afdad826253a2f5869e/FLAG278bf82dd [2024-12-02 13:02:25,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/data/e8bf7ac3f/863e5b7a7b204afdad826253a2f5869e [2024-12-02 13:02:25,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:02:25,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:02:25,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:02:25,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:02:25,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:02:25,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30bf24cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25, skipping insertion in model container [2024-12-02 13:02:25,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:02:25,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:02:25,589 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:02:25,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:02:25,710 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:02:25,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25 WrapperNode [2024-12-02 13:02:25,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:02:25,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:02:25,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:02:25,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:02:25,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,765 INFO L138 Inliner]: procedures = 372, calls = 88, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 298 [2024-12-02 13:02:25,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:02:25,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:02:25,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:02:25,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:02:25,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,796 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:02:25,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:02:25,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:02:25,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:02:25,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (1/1) ... [2024-12-02 13:02:25,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:02:25,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:02:25,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:02:25,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:02:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 13:02:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 13:02:25,858 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 13:02:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:02:25,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:02:25,860 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 13:02:26,001 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:02:26,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:02:26,503 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 13:02:26,503 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:02:26,528 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:02:26,528 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:02:26,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:26 BoogieIcfgContainer [2024-12-02 13:02:26,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:02:26,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:02:26,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:02:26,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:02:26,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:02:25" (1/3) ... [2024-12-02 13:02:26,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70acadf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:02:26, skipping insertion in model container [2024-12-02 13:02:26,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:25" (2/3) ... [2024-12-02 13:02:26,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70acadf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:02:26, skipping insertion in model container [2024-12-02 13:02:26,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:26" (3/3) ... [2024-12-02 13:02:26,537 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2024-12-02 13:02:26,548 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:02:26,549 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_11-arraylist_nr.i that has 2 procedures, 336 locations, 1 initial locations, 2 loop locations, and 18 error locations. [2024-12-02 13:02:26,550 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 13:02:26,633 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 13:02:26,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 339 places, 341 transitions, 686 flow [2024-12-02 13:02:26,810 INFO L124 PetriNetUnfolderBase]: 6/340 cut-off events. [2024-12-02 13:02:26,812 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:02:26,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 340 events. 6/340 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 398 event pairs, 0 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 212. Up to 2 conditions per place. [2024-12-02 13:02:26,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 339 places, 341 transitions, 686 flow [2024-12-02 13:02:26,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 338 places, 340 transitions, 683 flow [2024-12-02 13:02:26,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:02:26,840 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;@7ea1e1da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:02:26,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-12-02 13:02:26,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 13:02:26,867 INFO L124 PetriNetUnfolderBase]: 5/133 cut-off events. [2024-12-02 13:02:26,867 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:02:26,867 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:26,867 INFO L206 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] [2024-12-02 13:02:26,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:26,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:26,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2094175485, now seen corresponding path program 1 times [2024-12-02 13:02:26,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:26,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98218404] [2024-12-02 13:02:26,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:26,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:27,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:27,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98218404] [2024-12-02 13:02:27,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98218404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:27,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:27,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:02:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482050335] [2024-12-02 13:02:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:27,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:02:27,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:27,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:02:27,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:02:27,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 341 [2024-12-02 13:02:27,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 340 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-12-02 13:02:27,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:27,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 341 [2024-12-02 13:02:27,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:27,378 INFO L124 PetriNetUnfolderBase]: 8/416 cut-off events. [2024-12-02 13:02:27,378 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 13:02:27,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 416 events. 8/416 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 872 event pairs, 6 based on Foata normal form. 6/391 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2024-12-02 13:02:27,382 INFO L140 encePairwiseOnDemand]: 334/341 looper letters, 10 selfloop transitions, 2 changer transitions 1/337 dead transitions. [2024-12-02 13:02:27,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 337 transitions, 701 flow [2024-12-02 13:02:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:02:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:02:27,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2024-12-02 13:02:27,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9736070381231672 [2024-12-02 13:02:27,399 INFO L175 Difference]: Start difference. First operand has 338 places, 340 transitions, 683 flow. Second operand 3 states and 996 transitions. [2024-12-02 13:02:27,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 337 transitions, 701 flow [2024-12-02 13:02:27,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 337 transitions, 700 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:02:27,413 INFO L231 Difference]: Finished difference. Result has 340 places, 336 transitions, 684 flow [2024-12-02 13:02:27,416 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=340, PETRI_TRANSITIONS=336} [2024-12-02 13:02:27,419 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 2 predicate places. [2024-12-02 13:02:27,419 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 336 transitions, 684 flow [2024-12-02 13:02:27,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-12-02 13:02:27,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:27,420 INFO L206 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] [2024-12-02 13:02:27,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:02:27,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:27,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1576402772, now seen corresponding path program 1 times [2024-12-02 13:02:27,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:27,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258978516] [2024-12-02 13:02:27,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:27,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258978516] [2024-12-02 13:02:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258978516] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:02:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481238011] [2024-12-02 13:02:27,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:27,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:27,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:02:27,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:02:27,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:02:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:27,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:02:27,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:02:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:27,802 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:02:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:27,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481238011] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:02:27,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:02:27,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 13:02:27,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299600123] [2024-12-02 13:02:27,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:02:27,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:02:27,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:27,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:02:27,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:02:27,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 341 [2024-12-02 13:02:27,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 336 transitions, 684 flow. Second operand has 10 states, 10 states have (on average 324.8) internal successors, (3248), 10 states have internal predecessors, (3248), 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) [2024-12-02 13:02:27,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:27,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 341 [2024-12-02 13:02:27,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:28,064 INFO L124 PetriNetUnfolderBase]: 8/422 cut-off events. [2024-12-02 13:02:28,064 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 13:02:28,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 422 events. 8/422 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 865 event pairs, 6 based on Foata normal form. 2/394 useless extension candidates. Maximal degree in co-relation 384. Up to 24 conditions per place. [2024-12-02 13:02:28,067 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 14 selfloop transitions, 9 changer transitions 0/344 dead transitions. [2024-12-02 13:02:28,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 344 transitions, 748 flow [2024-12-02 13:02:28,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:02:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 13:02:28,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2932 transitions. [2024-12-02 13:02:28,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9553600521342457 [2024-12-02 13:02:28,075 INFO L175 Difference]: Start difference. First operand has 340 places, 336 transitions, 684 flow. Second operand 9 states and 2932 transitions. [2024-12-02 13:02:28,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 344 transitions, 748 flow [2024-12-02 13:02:28,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 344 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:02:28,083 INFO L231 Difference]: Finished difference. Result has 349 places, 342 transitions, 732 flow [2024-12-02 13:02:28,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=732, PETRI_PLACES=349, PETRI_TRANSITIONS=342} [2024-12-02 13:02:28,084 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 11 predicate places. [2024-12-02 13:02:28,084 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 342 transitions, 732 flow [2024-12-02 13:02:28,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 324.8) internal successors, (3248), 10 states have internal predecessors, (3248), 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) [2024-12-02 13:02:28,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:28,086 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:28,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:02:28,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:28,287 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:28,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1912988428, now seen corresponding path program 2 times [2024-12-02 13:02:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:28,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632395614] [2024-12-02 13:02:28,289 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:02:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:28,328 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:02:28,329 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:02:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 13:02:29,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:29,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632395614] [2024-12-02 13:02:29,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632395614] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:29,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:29,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:29,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630918113] [2024-12-02 13:02:29,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:29,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:29,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:29,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:29,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:29,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 341 [2024-12-02 13:02:29,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 342 transitions, 732 flow. Second operand has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 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) [2024-12-02 13:02:29,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:29,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 341 [2024-12-02 13:02:29,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:29,932 INFO L124 PetriNetUnfolderBase]: 366/1697 cut-off events. [2024-12-02 13:02:29,932 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-12-02 13:02:29,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 1697 events. 366/1697 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10060 event pairs, 364 based on Foata normal form. 0/1571 useless extension candidates. Maximal degree in co-relation 2426. Up to 800 conditions per place. [2024-12-02 13:02:29,940 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 71 selfloop transitions, 10 changer transitions 0/340 dead transitions. [2024-12-02 13:02:29,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 340 transitions, 890 flow [2024-12-02 13:02:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:29,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1607 transitions. [2024-12-02 13:02:29,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7854349951124144 [2024-12-02 13:02:29,945 INFO L175 Difference]: Start difference. First operand has 349 places, 342 transitions, 732 flow. Second operand 6 states and 1607 transitions. [2024-12-02 13:02:29,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 340 transitions, 890 flow [2024-12-02 13:02:29,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 340 transitions, 884 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 13:02:29,949 INFO L231 Difference]: Finished difference. Result has 351 places, 340 transitions, 742 flow [2024-12-02 13:02:29,950 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=742, PETRI_PLACES=351, PETRI_TRANSITIONS=340} [2024-12-02 13:02:29,950 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 13 predicate places. [2024-12-02 13:02:29,950 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 340 transitions, 742 flow [2024-12-02 13:02:29,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 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) [2024-12-02 13:02:29,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:29,951 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:29,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:02:29,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:29,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash -662549271, now seen corresponding path program 1 times [2024-12-02 13:02:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189600225] [2024-12-02 13:02:29,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:29,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 13:02:30,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:30,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189600225] [2024-12-02 13:02:30,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189600225] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:30,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:30,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:02:30,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601517440] [2024-12-02 13:02:30,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:30,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:02:30,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:30,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:02:30,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:02:30,048 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 341 [2024-12-02 13:02:30,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 340 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-12-02 13:02:30,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:30,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 341 [2024-12-02 13:02:30,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:30,111 INFO L124 PetriNetUnfolderBase]: 8/531 cut-off events. [2024-12-02 13:02:30,111 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 13:02:30,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 531 events. 8/531 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 863 event pairs, 6 based on Foata normal form. 1/498 useless extension candidates. Maximal degree in co-relation 494. Up to 24 conditions per place. [2024-12-02 13:02:30,112 INFO L140 encePairwiseOnDemand]: 338/341 looper letters, 10 selfloop transitions, 2 changer transitions 0/341 dead transitions. [2024-12-02 13:02:30,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 341 transitions, 768 flow [2024-12-02 13:02:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:02:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:02:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 991 transitions. [2024-12-02 13:02:30,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9687194525904204 [2024-12-02 13:02:30,115 INFO L175 Difference]: Start difference. First operand has 351 places, 340 transitions, 742 flow. Second operand 3 states and 991 transitions. [2024-12-02 13:02:30,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 341 transitions, 768 flow [2024-12-02 13:02:30,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 341 transitions, 748 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 13:02:30,119 INFO L231 Difference]: Finished difference. Result has 349 places, 341 transitions, 734 flow [2024-12-02 13:02:30,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=349, PETRI_TRANSITIONS=341} [2024-12-02 13:02:30,120 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 11 predicate places. [2024-12-02 13:02:30,120 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 341 transitions, 734 flow [2024-12-02 13:02:30,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-12-02 13:02:30,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:30,121 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:30,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:02:30,121 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:30,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -984016702, now seen corresponding path program 1 times [2024-12-02 13:02:30,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:30,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349845893] [2024-12-02 13:02:30,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:30,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:30,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:30,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349845893] [2024-12-02 13:02:30,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349845893] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:02:30,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070907532] [2024-12-02 13:02:30,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:30,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:30,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:02:30,273 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:02:30,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:02:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:30,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:02:30,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:02:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:30,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:02:30,540 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:30,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070907532] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:02:30,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:02:30,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-12-02 13:02:30,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758227789] [2024-12-02 13:02:30,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:02:30,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:02:30,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:30,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:02:30,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:02:30,581 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 341 [2024-12-02 13:02:30,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 341 transitions, 734 flow. Second operand has 18 states, 18 states have (on average 324.8888888888889) internal successors, (5848), 18 states have internal predecessors, (5848), 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) [2024-12-02 13:02:30,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:30,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 341 [2024-12-02 13:02:30,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:30,859 INFO L124 PetriNetUnfolderBase]: 8/551 cut-off events. [2024-12-02 13:02:30,859 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-12-02 13:02:30,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 551 events. 8/551 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 864 event pairs, 6 based on Foata normal form. 4/521 useless extension candidates. Maximal degree in co-relation 476. Up to 24 conditions per place. [2024-12-02 13:02:30,861 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 18 selfloop transitions, 21 changer transitions 0/359 dead transitions. [2024-12-02 13:02:30,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 359 transitions, 900 flow [2024-12-02 13:02:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:02:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 13:02:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6826 transitions. [2024-12-02 13:02:30,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9532188241865661 [2024-12-02 13:02:30,874 INFO L175 Difference]: Start difference. First operand has 349 places, 341 transitions, 734 flow. Second operand 21 states and 6826 transitions. [2024-12-02 13:02:30,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 359 transitions, 900 flow [2024-12-02 13:02:30,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 359 transitions, 898 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:02:30,880 INFO L231 Difference]: Finished difference. Result has 373 places, 354 transitions, 862 flow [2024-12-02 13:02:30,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=862, PETRI_PLACES=373, PETRI_TRANSITIONS=354} [2024-12-02 13:02:30,881 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 35 predicate places. [2024-12-02 13:02:30,881 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 354 transitions, 862 flow [2024-12-02 13:02:30,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 324.8888888888889) internal successors, (5848), 18 states have internal predecessors, (5848), 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) [2024-12-02 13:02:30,884 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:30,885 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:30,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:02:31,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:31,085 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:31,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:31,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1779452542, now seen corresponding path program 2 times [2024-12-02 13:02:31,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:31,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216616978] [2024-12-02 13:02:31,086 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:02:31,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:31,108 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:02:31,108 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:02:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 13:02:31,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:31,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216616978] [2024-12-02 13:02:31,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216616978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:31,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:31,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:31,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112023253] [2024-12-02 13:02:31,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:31,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:31,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:31,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:31,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:31,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 341 [2024-12-02 13:02:31,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 354 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 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) [2024-12-02 13:02:31,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:31,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 341 [2024-12-02 13:02:31,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:32,270 INFO L124 PetriNetUnfolderBase]: 366/1824 cut-off events. [2024-12-02 13:02:32,270 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-12-02 13:02:32,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2774 conditions, 1824 events. 366/1824 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10017 event pairs, 364 based on Foata normal form. 0/1696 useless extension candidates. Maximal degree in co-relation 2581. Up to 830 conditions per place. [2024-12-02 13:02:32,280 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 71 selfloop transitions, 10 changer transitions 0/352 dead transitions. [2024-12-02 13:02:32,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 352 transitions, 1020 flow [2024-12-02 13:02:32,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:32,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:32,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1607 transitions. [2024-12-02 13:02:32,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7854349951124144 [2024-12-02 13:02:32,283 INFO L175 Difference]: Start difference. First operand has 373 places, 354 transitions, 862 flow. Second operand 6 states and 1607 transitions. [2024-12-02 13:02:32,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 352 transitions, 1020 flow [2024-12-02 13:02:32,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 352 transitions, 996 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-12-02 13:02:32,290 INFO L231 Difference]: Finished difference. Result has 370 places, 352 transitions, 854 flow [2024-12-02 13:02:32,291 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=854, PETRI_PLACES=370, PETRI_TRANSITIONS=352} [2024-12-02 13:02:32,292 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 32 predicate places. [2024-12-02 13:02:32,292 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 352 transitions, 854 flow [2024-12-02 13:02:32,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 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) [2024-12-02 13:02:32,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:32,293 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:32,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:02:32,293 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:32,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:32,294 INFO L85 PathProgramCache]: Analyzing trace with hash 177103976, now seen corresponding path program 1 times [2024-12-02 13:02:32,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:32,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238657554] [2024-12-02 13:02:32,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:32,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:32,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:32,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238657554] [2024-12-02 13:02:32,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238657554] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:02:32,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162575124] [2024-12-02 13:02:32,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:32,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:32,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:02:32,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:02:32,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:02:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:32,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:02:32,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:02:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:32,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:02:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:02:33,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162575124] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:02:33,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:02:33,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-12-02 13:02:33,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293433529] [2024-12-02 13:02:33,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:02:33,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 13:02:33,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:33,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 13:02:33,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:02:33,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 341 [2024-12-02 13:02:33,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 352 transitions, 854 flow. Second operand has 23 states, 23 states have (on average 325.0) internal successors, (7475), 23 states have internal predecessors, (7475), 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) [2024-12-02 13:02:33,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:33,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 341 [2024-12-02 13:02:33,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:33,488 INFO L124 PetriNetUnfolderBase]: 8/562 cut-off events. [2024-12-02 13:02:33,488 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-12-02 13:02:33,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 562 events. 8/562 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 854 event pairs, 6 based on Foata normal form. 3/535 useless extension candidates. Maximal degree in co-relation 498. Up to 24 conditions per place. [2024-12-02 13:02:33,490 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 21 selfloop transitions, 30 changer transitions 0/369 dead transitions. [2024-12-02 13:02:33,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 369 transitions, 1078 flow [2024-12-02 13:02:33,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 13:02:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-12-02 13:02:33,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9744 transitions. [2024-12-02 13:02:33,500 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9524926686217009 [2024-12-02 13:02:33,500 INFO L175 Difference]: Start difference. First operand has 370 places, 352 transitions, 854 flow. Second operand 30 states and 9744 transitions. [2024-12-02 13:02:33,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 369 transitions, 1078 flow [2024-12-02 13:02:33,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 369 transitions, 1058 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 13:02:33,507 INFO L231 Difference]: Finished difference. Result has 398 places, 362 transitions, 986 flow [2024-12-02 13:02:33,507 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=986, PETRI_PLACES=398, PETRI_TRANSITIONS=362} [2024-12-02 13:02:33,508 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 60 predicate places. [2024-12-02 13:02:33,508 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 362 transitions, 986 flow [2024-12-02 13:02:33,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 325.0) internal successors, (7475), 23 states have internal predecessors, (7475), 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) [2024-12-02 13:02:33,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:33,511 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:33,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:02:33,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:33,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:33,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:33,713 INFO L85 PathProgramCache]: Analyzing trace with hash -898116033, now seen corresponding path program 2 times [2024-12-02 13:02:33,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:33,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173013464] [2024-12-02 13:02:33,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:02:33,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:33,735 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:02:33,736 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:02:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 13:02:34,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:34,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173013464] [2024-12-02 13:02:34,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173013464] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:34,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:34,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:34,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353276691] [2024-12-02 13:02:34,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:34,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:34,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:34,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:34,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:34,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 341 [2024-12-02 13:02:34,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 362 transitions, 986 flow. Second operand has 6 states, 6 states have (on average 251.83333333333334) internal successors, (1511), 6 states have internal predecessors, (1511), 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) [2024-12-02 13:02:34,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:34,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 341 [2024-12-02 13:02:34,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:34,951 INFO L124 PetriNetUnfolderBase]: 392/1927 cut-off events. [2024-12-02 13:02:34,951 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-12-02 13:02:34,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3004 conditions, 1927 events. 392/1927 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10786 event pairs, 390 based on Foata normal form. 0/1795 useless extension candidates. Maximal degree in co-relation 2732. Up to 899 conditions per place. [2024-12-02 13:02:34,958 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 83 selfloop transitions, 5 changer transitions 0/361 dead transitions. [2024-12-02 13:02:34,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 361 transitions, 1160 flow [2024-12-02 13:02:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:34,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1582 transitions. [2024-12-02 13:02:34,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7732160312805474 [2024-12-02 13:02:34,960 INFO L175 Difference]: Start difference. First operand has 398 places, 362 transitions, 986 flow. Second operand 6 states and 1582 transitions. [2024-12-02 13:02:34,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 361 transitions, 1160 flow [2024-12-02 13:02:34,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 361 transitions, 1114 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-12-02 13:02:34,966 INFO L231 Difference]: Finished difference. Result has 384 places, 361 transitions, 948 flow [2024-12-02 13:02:34,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=948, PETRI_PLACES=384, PETRI_TRANSITIONS=361} [2024-12-02 13:02:34,967 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 46 predicate places. [2024-12-02 13:02:34,967 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 361 transitions, 948 flow [2024-12-02 13:02:34,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 251.83333333333334) internal successors, (1511), 6 states have internal predecessors, (1511), 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) [2024-12-02 13:02:34,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:34,968 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:34,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:02:34,968 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:34,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:34,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1351573771, now seen corresponding path program 1 times [2024-12-02 13:02:34,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:34,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763228603] [2024-12-02 13:02:34,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:34,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:35,507 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 13:02:35,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:35,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763228603] [2024-12-02 13:02:35,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763228603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:35,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:35,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:35,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155344488] [2024-12-02 13:02:35,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:35,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:35,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:35,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:35,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:36,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 341 [2024-12-02 13:02:36,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 361 transitions, 948 flow. Second operand has 6 states, 6 states have (on average 279.8333333333333) internal successors, (1679), 6 states have internal predecessors, (1679), 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) [2024-12-02 13:02:36,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:36,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 341 [2024-12-02 13:02:36,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:36,281 INFO L124 PetriNetUnfolderBase]: 56/801 cut-off events. [2024-12-02 13:02:36,282 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-12-02 13:02:36,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 801 events. 56/801 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2626 event pairs, 54 based on Foata normal form. 0/749 useless extension candidates. Maximal degree in co-relation 911. Up to 195 conditions per place. [2024-12-02 13:02:36,285 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 57 selfloop transitions, 5 changer transitions 0/360 dead transitions. [2024-12-02 13:02:36,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 360 transitions, 1070 flow [2024-12-02 13:02:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:36,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1712 transitions. [2024-12-02 13:02:36,289 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8367546432062561 [2024-12-02 13:02:36,289 INFO L175 Difference]: Start difference. First operand has 384 places, 361 transitions, 948 flow. Second operand 6 states and 1712 transitions. [2024-12-02 13:02:36,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 360 transitions, 1070 flow [2024-12-02 13:02:36,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 360 transitions, 1060 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 13:02:36,296 INFO L231 Difference]: Finished difference. Result has 383 places, 360 transitions, 946 flow [2024-12-02 13:02:36,296 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=383, PETRI_TRANSITIONS=360} [2024-12-02 13:02:36,297 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 45 predicate places. [2024-12-02 13:02:36,297 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 360 transitions, 946 flow [2024-12-02 13:02:36,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 279.8333333333333) internal successors, (1679), 6 states have internal predecessors, (1679), 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) [2024-12-02 13:02:36,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:36,298 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:36,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:02:36,298 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:36,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:36,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1197536638, now seen corresponding path program 1 times [2024-12-02 13:02:36,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:36,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896434192] [2024-12-02 13:02:36,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:36,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 13:02:36,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:36,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896434192] [2024-12-02 13:02:36,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896434192] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:36,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:36,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:36,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068097732] [2024-12-02 13:02:36,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:36,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:36,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:36,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:36,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:37,370 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 341 [2024-12-02 13:02:37,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 360 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 282.5) internal successors, (1695), 6 states have internal predecessors, (1695), 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) [2024-12-02 13:02:37,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:37,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 341 [2024-12-02 13:02:37,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:37,536 INFO L124 PetriNetUnfolderBase]: 38/716 cut-off events. [2024-12-02 13:02:37,537 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-12-02 13:02:37,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 716 events. 38/716 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2077 event pairs, 36 based on Foata normal form. 0/677 useless extension candidates. Maximal degree in co-relation 791. Up to 158 conditions per place. [2024-12-02 13:02:37,540 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 53 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2024-12-02 13:02:37,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 359 transitions, 1060 flow [2024-12-02 13:02:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1727 transitions. [2024-12-02 13:02:37,543 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8440860215053764 [2024-12-02 13:02:37,543 INFO L175 Difference]: Start difference. First operand has 383 places, 360 transitions, 946 flow. Second operand 6 states and 1727 transitions. [2024-12-02 13:02:37,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 359 transitions, 1060 flow [2024-12-02 13:02:37,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 359 transitions, 1050 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 13:02:37,551 INFO L231 Difference]: Finished difference. Result has 382 places, 359 transitions, 944 flow [2024-12-02 13:02:37,551 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=944, PETRI_PLACES=382, PETRI_TRANSITIONS=359} [2024-12-02 13:02:37,552 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 44 predicate places. [2024-12-02 13:02:37,552 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 359 transitions, 944 flow [2024-12-02 13:02:37,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.5) internal successors, (1695), 6 states have internal predecessors, (1695), 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) [2024-12-02 13:02:37,553 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:37,553 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:37,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:02:37,553 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:37,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:37,554 INFO L85 PathProgramCache]: Analyzing trace with hash -262865930, now seen corresponding path program 1 times [2024-12-02 13:02:37,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:37,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562502574] [2024-12-02 13:02:37,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:37,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 13:02:38,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:38,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562502574] [2024-12-02 13:02:38,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562502574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:38,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:38,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:38,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033054902] [2024-12-02 13:02:38,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:38,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:38,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:38,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:38,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:38,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 341 [2024-12-02 13:02:38,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 359 transitions, 944 flow. Second operand has 6 states, 6 states have (on average 258.1666666666667) internal successors, (1549), 6 states have internal predecessors, (1549), 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) [2024-12-02 13:02:38,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:38,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 341 [2024-12-02 13:02:38,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:38,889 INFO L124 PetriNetUnfolderBase]: 366/1831 cut-off events. [2024-12-02 13:02:38,889 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-12-02 13:02:38,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2843 conditions, 1831 events. 366/1831 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9998 event pairs, 364 based on Foata normal form. 0/1711 useless extension candidates. Maximal degree in co-relation 2594. Up to 846 conditions per place. [2024-12-02 13:02:38,895 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 79 selfloop transitions, 5 changer transitions 0/358 dead transitions. [2024-12-02 13:02:38,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 358 transitions, 1110 flow [2024-12-02 13:02:38,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:38,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1597 transitions. [2024-12-02 13:02:38,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7805474095796676 [2024-12-02 13:02:38,898 INFO L175 Difference]: Start difference. First operand has 382 places, 359 transitions, 944 flow. Second operand 6 states and 1597 transitions. [2024-12-02 13:02:38,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 358 transitions, 1110 flow [2024-12-02 13:02:38,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 358 transitions, 1100 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 13:02:38,905 INFO L231 Difference]: Finished difference. Result has 381 places, 358 transitions, 942 flow [2024-12-02 13:02:38,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=381, PETRI_TRANSITIONS=358} [2024-12-02 13:02:38,906 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 43 predicate places. [2024-12-02 13:02:38,906 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 358 transitions, 942 flow [2024-12-02 13:02:38,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.1666666666667) internal successors, (1549), 6 states have internal predecessors, (1549), 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) [2024-12-02 13:02:38,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:38,907 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:38,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:02:38,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:38,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1289596692, now seen corresponding path program 1 times [2024-12-02 13:02:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:38,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315686479] [2024-12-02 13:02:38,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:39,535 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 13:02:39,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:39,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315686479] [2024-12-02 13:02:39,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315686479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:39,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:39,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:39,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225830590] [2024-12-02 13:02:39,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:39,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:39,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:39,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:39,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:39,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 341 [2024-12-02 13:02:39,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 358 transitions, 942 flow. Second operand has 6 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 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) [2024-12-02 13:02:39,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:39,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 341 [2024-12-02 13:02:39,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:40,175 INFO L124 PetriNetUnfolderBase]: 366/1829 cut-off events. [2024-12-02 13:02:40,175 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-12-02 13:02:40,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2839 conditions, 1829 events. 366/1829 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9963 event pairs, 364 based on Foata normal form. 0/1711 useless extension candidates. Maximal degree in co-relation 2590. Up to 844 conditions per place. [2024-12-02 13:02:40,182 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 78 selfloop transitions, 5 changer transitions 0/357 dead transitions. [2024-12-02 13:02:40,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 357 transitions, 1106 flow [2024-12-02 13:02:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:40,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:40,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1602 transitions. [2024-12-02 13:02:40,184 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.782991202346041 [2024-12-02 13:02:40,184 INFO L175 Difference]: Start difference. First operand has 381 places, 358 transitions, 942 flow. Second operand 6 states and 1602 transitions. [2024-12-02 13:02:40,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 357 transitions, 1106 flow [2024-12-02 13:02:40,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 357 transitions, 1096 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 13:02:40,191 INFO L231 Difference]: Finished difference. Result has 380 places, 357 transitions, 940 flow [2024-12-02 13:02:40,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=940, PETRI_PLACES=380, PETRI_TRANSITIONS=357} [2024-12-02 13:02:40,192 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 42 predicate places. [2024-12-02 13:02:40,192 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 357 transitions, 940 flow [2024-12-02 13:02:40,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 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) [2024-12-02 13:02:40,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:40,193 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 13:02:40,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:02:40,193 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:40,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:40,194 INFO L85 PathProgramCache]: Analyzing trace with hash 897735373, now seen corresponding path program 1 times [2024-12-02 13:02:40,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:40,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697794262] [2024-12-02 13:02:40,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:40,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-02 13:02:40,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:40,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697794262] [2024-12-02 13:02:40,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697794262] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:02:40,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479491929] [2024-12-02 13:02:40,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:40,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:40,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:02:40,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:02:40,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:02:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:40,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:02:40,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:02:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-02 13:02:40,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:02:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-02 13:02:40,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479491929] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:02:40,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:02:40,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 13:02:40,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074292945] [2024-12-02 13:02:40,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:02:40,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:02:40,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:40,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:02:40,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:02:40,978 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 341 [2024-12-02 13:02:40,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 357 transitions, 940 flow. Second operand has 10 states, 10 states have (on average 325.0) internal successors, (3250), 10 states have internal predecessors, (3250), 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) [2024-12-02 13:02:40,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:40,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 341 [2024-12-02 13:02:40,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:41,090 INFO L124 PetriNetUnfolderBase]: 8/659 cut-off events. [2024-12-02 13:02:41,090 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-12-02 13:02:41,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 659 events. 8/659 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 391 event pairs, 6 based on Foata normal form. 2/641 useless extension candidates. Maximal degree in co-relation 607. Up to 24 conditions per place. [2024-12-02 13:02:41,092 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 14 selfloop transitions, 9 changer transitions 0/365 dead transitions. [2024-12-02 13:02:41,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 365 transitions, 1004 flow [2024-12-02 13:02:41,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:02:41,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 13:02:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2932 transitions. [2024-12-02 13:02:41,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9553600521342457 [2024-12-02 13:02:41,094 INFO L175 Difference]: Start difference. First operand has 380 places, 357 transitions, 940 flow. Second operand 9 states and 2932 transitions. [2024-12-02 13:02:41,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 365 transitions, 1004 flow [2024-12-02 13:02:41,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 365 transitions, 994 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 13:02:41,099 INFO L231 Difference]: Finished difference. Result has 386 places, 363 transitions, 980 flow [2024-12-02 13:02:41,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=980, PETRI_PLACES=386, PETRI_TRANSITIONS=363} [2024-12-02 13:02:41,099 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 48 predicate places. [2024-12-02 13:02:41,100 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 363 transitions, 980 flow [2024-12-02 13:02:41,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 325.0) internal successors, (3250), 10 states have internal predecessors, (3250), 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) [2024-12-02 13:02:41,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:41,102 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:02:41,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:02:41,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:41,302 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:41,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:41,303 INFO L85 PathProgramCache]: Analyzing trace with hash 457782381, now seen corresponding path program 2 times [2024-12-02 13:02:41,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:41,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962249428] [2024-12-02 13:02:41,304 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:02:41,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:41,361 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:02:41,361 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:02:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2024-12-02 13:02:41,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:41,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962249428] [2024-12-02 13:02:41,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962249428] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:41,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:41,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:41,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379650981] [2024-12-02 13:02:41,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:41,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:41,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:41,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:41,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:42,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 341 [2024-12-02 13:02:42,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 363 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 284.3333333333333) internal successors, (1706), 6 states have internal predecessors, (1706), 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) [2024-12-02 13:02:42,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:42,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 341 [2024-12-02 13:02:42,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:42,503 INFO L124 PetriNetUnfolderBase]: 258/1966 cut-off events. [2024-12-02 13:02:42,503 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-12-02 13:02:42,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2769 conditions, 1966 events. 258/1966 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10028 event pairs, 34 based on Foata normal form. 0/1840 useless extension candidates. Maximal degree in co-relation 2516. Up to 491 conditions per place. [2024-12-02 13:02:42,514 INFO L140 encePairwiseOnDemand]: 318/341 looper letters, 67 selfloop transitions, 70 changer transitions 0/441 dead transitions. [2024-12-02 13:02:42,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 441 transitions, 1410 flow [2024-12-02 13:02:42,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:42,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1806 transitions. [2024-12-02 13:02:42,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8826979472140762 [2024-12-02 13:02:42,516 INFO L175 Difference]: Start difference. First operand has 386 places, 363 transitions, 980 flow. Second operand 6 states and 1806 transitions. [2024-12-02 13:02:42,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 441 transitions, 1410 flow [2024-12-02 13:02:42,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 441 transitions, 1404 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 13:02:42,525 INFO L231 Difference]: Finished difference. Result has 395 places, 432 transitions, 1436 flow [2024-12-02 13:02:42,526 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1436, PETRI_PLACES=395, PETRI_TRANSITIONS=432} [2024-12-02 13:02:42,526 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 57 predicate places. [2024-12-02 13:02:42,526 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 432 transitions, 1436 flow [2024-12-02 13:02:42,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.3333333333333) internal successors, (1706), 6 states have internal predecessors, (1706), 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) [2024-12-02 13:02:42,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:42,527 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:02:42,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:02:42,527 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:42,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash 424903005, now seen corresponding path program 1 times [2024-12-02 13:02:42,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:42,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050754141] [2024-12-02 13:02:42,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:42,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:43,006 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 13:02:43,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:43,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050754141] [2024-12-02 13:02:43,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050754141] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:02:43,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723445034] [2024-12-02 13:02:43,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:43,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:43,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:02:43,008 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:02:43,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:02:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:43,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:02:43,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:02:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 13:02:43,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:02:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 13:02:44,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723445034] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:02:44,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:02:44,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-12-02 13:02:44,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036815863] [2024-12-02 13:02:44,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:02:44,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:02:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:44,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:02:44,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:02:44,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 341 [2024-12-02 13:02:44,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 432 transitions, 1436 flow. Second operand has 18 states, 18 states have (on average 325.0) internal successors, (5850), 18 states have internal predecessors, (5850), 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) [2024-12-02 13:02:44,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:44,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 341 [2024-12-02 13:02:44,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:44,795 INFO L124 PetriNetUnfolderBase]: 137/2068 cut-off events. [2024-12-02 13:02:44,795 INFO L125 PetriNetUnfolderBase]: For 309/329 co-relation queries the response was YES. [2024-12-02 13:02:44,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2886 conditions, 2068 events. 137/2068 cut-off events. For 309/329 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7240 event pairs, 21 based on Foata normal form. 4/1985 useless extension candidates. Maximal degree in co-relation 2629. Up to 206 conditions per place. [2024-12-02 13:02:44,801 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 19 selfloop transitions, 21 changer transitions 0/450 dead transitions. [2024-12-02 13:02:44,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 450 transitions, 1604 flow [2024-12-02 13:02:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:02:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 13:02:44,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6826 transitions. [2024-12-02 13:02:44,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9532188241865661 [2024-12-02 13:02:44,807 INFO L175 Difference]: Start difference. First operand has 395 places, 432 transitions, 1436 flow. Second operand 21 states and 6826 transitions. [2024-12-02 13:02:44,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 450 transitions, 1604 flow [2024-12-02 13:02:44,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 450 transitions, 1604 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 13:02:44,815 INFO L231 Difference]: Finished difference. Result has 420 places, 445 transitions, 1566 flow [2024-12-02 13:02:44,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1566, PETRI_PLACES=420, PETRI_TRANSITIONS=445} [2024-12-02 13:02:44,816 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 82 predicate places. [2024-12-02 13:02:44,816 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 445 transitions, 1566 flow [2024-12-02 13:02:44,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 325.0) internal successors, (5850), 18 states have internal predecessors, (5850), 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) [2024-12-02 13:02:44,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:44,818 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2024-12-02 13:02:44,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:02:45,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:45,018 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:45,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:45,020 INFO L85 PathProgramCache]: Analyzing trace with hash 546786461, now seen corresponding path program 2 times [2024-12-02 13:02:45,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:45,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798251324] [2024-12-02 13:02:45,020 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:02:45,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:45,144 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:02:45,144 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:02:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2937 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2937 trivial. 0 not checked. [2024-12-02 13:02:45,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:45,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798251324] [2024-12-02 13:02:45,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798251324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:45,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:45,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:45,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211727330] [2024-12-02 13:02:45,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:45,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:45,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:45,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:45,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:45,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 341 [2024-12-02 13:02:45,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 445 transitions, 1566 flow. Second operand has 6 states, 6 states have (on average 284.1666666666667) internal successors, (1705), 6 states have internal predecessors, (1705), 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) [2024-12-02 13:02:45,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:45,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 341 [2024-12-02 13:02:45,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:46,796 INFO L124 PetriNetUnfolderBase]: 531/3151 cut-off events. [2024-12-02 13:02:46,796 INFO L125 PetriNetUnfolderBase]: For 991/1074 co-relation queries the response was YES. [2024-12-02 13:02:46,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5582 conditions, 3151 events. 531/3151 cut-off events. For 991/1074 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16107 event pairs, 92 based on Foata normal form. 16/3010 useless extension candidates. Maximal degree in co-relation 5320. Up to 981 conditions per place. [2024-12-02 13:02:46,805 INFO L140 encePairwiseOnDemand]: 318/341 looper letters, 131 selfloop transitions, 130 changer transitions 0/582 dead transitions. [2024-12-02 13:02:46,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 582 transitions, 2738 flow [2024-12-02 13:02:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:46,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1805 transitions. [2024-12-02 13:02:46,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8822091886608016 [2024-12-02 13:02:46,807 INFO L175 Difference]: Start difference. First operand has 420 places, 445 transitions, 1566 flow. Second operand 6 states and 1805 transitions. [2024-12-02 13:02:46,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 582 transitions, 2738 flow [2024-12-02 13:02:46,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 582 transitions, 2714 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-12-02 13:02:46,816 INFO L231 Difference]: Finished difference. Result has 424 places, 574 transitions, 2770 flow [2024-12-02 13:02:46,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1542, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2770, PETRI_PLACES=424, PETRI_TRANSITIONS=574} [2024-12-02 13:02:46,817 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 86 predicate places. [2024-12-02 13:02:46,817 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 574 transitions, 2770 flow [2024-12-02 13:02:46,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.1666666666667) internal successors, (1705), 6 states have internal predecessors, (1705), 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) [2024-12-02 13:02:46,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:46,817 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2024-12-02 13:02:46,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:02:46,818 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:46,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:46,819 INFO L85 PathProgramCache]: Analyzing trace with hash 969340489, now seen corresponding path program 1 times [2024-12-02 13:02:46,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:46,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135552830] [2024-12-02 13:02:46,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:46,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2937 backedges. 0 proven. 2632 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-12-02 13:02:48,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:48,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135552830] [2024-12-02 13:02:48,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135552830] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:02:48,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367489880] [2024-12-02 13:02:48,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:48,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:48,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:02:48,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:02:48,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:02:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:49,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 3341 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:02:49,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:02:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2937 backedges. 0 proven. 2632 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-12-02 13:02:49,898 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:02:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2937 backedges. 0 proven. 2632 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-12-02 13:02:50,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367489880] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:02:50,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:02:50,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-12-02 13:02:50,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553397814] [2024-12-02 13:02:50,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:02:50,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 13:02:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:50,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 13:02:50,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:02:50,941 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 341 [2024-12-02 13:02:50,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 574 transitions, 2770 flow. Second operand has 23 states, 23 states have (on average 325.0869565217391) internal successors, (7477), 23 states have internal predecessors, (7477), 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) [2024-12-02 13:02:50,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:50,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 341 [2024-12-02 13:02:50,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:52,036 INFO L124 PetriNetUnfolderBase]: 412/3162 cut-off events. [2024-12-02 13:02:52,036 INFO L125 PetriNetUnfolderBase]: For 1289/1327 co-relation queries the response was YES. [2024-12-02 13:02:52,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5487 conditions, 3162 events. 412/3162 cut-off events. For 1289/1327 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13238 event pairs, 37 based on Foata normal form. 7/3061 useless extension candidates. Maximal degree in co-relation 5220. Up to 467 conditions per place. [2024-12-02 13:02:52,047 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 22 selfloop transitions, 30 changer transitions 0/591 dead transitions. [2024-12-02 13:02:52,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 591 transitions, 2996 flow [2024-12-02 13:02:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 13:02:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-12-02 13:02:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9744 transitions. [2024-12-02 13:02:52,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9524926686217009 [2024-12-02 13:02:52,052 INFO L175 Difference]: Start difference. First operand has 424 places, 574 transitions, 2770 flow. Second operand 30 states and 9744 transitions. [2024-12-02 13:02:52,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 591 transitions, 2996 flow [2024-12-02 13:02:52,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 591 transitions, 2996 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 13:02:52,063 INFO L231 Difference]: Finished difference. Result has 457 places, 584 transitions, 2922 flow [2024-12-02 13:02:52,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=2770, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2922, PETRI_PLACES=457, PETRI_TRANSITIONS=584} [2024-12-02 13:02:52,064 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 119 predicate places. [2024-12-02 13:02:52,064 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 584 transitions, 2922 flow [2024-12-02 13:02:52,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 325.0869565217391) internal successors, (7477), 23 states have internal predecessors, (7477), 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) [2024-12-02 13:02:52,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:52,065 INFO L206 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, 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] [2024-12-02 13:02:52,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:02:52,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:02:52,266 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:52,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2144290770, now seen corresponding path program 2 times [2024-12-02 13:02:52,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:52,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006947178] [2024-12-02 13:02:52,269 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:02:52,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:52,433 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:02:52,434 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:02:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5970 trivial. 0 not checked. [2024-12-02 13:02:52,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:52,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006947178] [2024-12-02 13:02:52,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006947178] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:52,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:52,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:52,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228543849] [2024-12-02 13:02:52,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:52,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:52,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:52,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:52,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:53,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 341 [2024-12-02 13:02:53,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 584 transitions, 2922 flow. Second operand has 6 states, 6 states have (on average 284.3333333333333) internal successors, (1706), 6 states have internal predecessors, (1706), 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) [2024-12-02 13:02:53,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:53,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 341 [2024-12-02 13:02:53,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:02:54,630 INFO L124 PetriNetUnfolderBase]: 807/4237 cut-off events. [2024-12-02 13:02:54,630 INFO L125 PetriNetUnfolderBase]: For 3426/3601 co-relation queries the response was YES. [2024-12-02 13:02:54,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8934 conditions, 4237 events. 807/4237 cut-off events. For 3426/3601 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22183 event pairs, 65 based on Foata normal form. 52/4124 useless extension candidates. Maximal degree in co-relation 8663. Up to 1323 conditions per place. [2024-12-02 13:02:54,648 INFO L140 encePairwiseOnDemand]: 318/341 looper letters, 251 selfloop transitions, 131 changer transitions 5/722 dead transitions. [2024-12-02 13:02:54,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 722 transitions, 4596 flow [2024-12-02 13:02:54,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:02:54,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:02:54,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1806 transitions. [2024-12-02 13:02:54,651 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8826979472140762 [2024-12-02 13:02:54,651 INFO L175 Difference]: Start difference. First operand has 457 places, 584 transitions, 2922 flow. Second operand 6 states and 1806 transitions. [2024-12-02 13:02:54,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 722 transitions, 4596 flow [2024-12-02 13:02:54,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 722 transitions, 4550 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-12-02 13:02:54,667 INFO L231 Difference]: Finished difference. Result has 449 places, 712 transitions, 4356 flow [2024-12-02 13:02:54,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=2876, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4356, PETRI_PLACES=449, PETRI_TRANSITIONS=712} [2024-12-02 13:02:54,668 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 111 predicate places. [2024-12-02 13:02:54,668 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 712 transitions, 4356 flow [2024-12-02 13:02:54,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.3333333333333) internal successors, (1706), 6 states have internal predecessors, (1706), 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) [2024-12-02 13:02:54,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:02:54,668 INFO L206 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, 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] [2024-12-02 13:02:54,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:02:54,669 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:02:54,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:02:54,672 INFO L85 PathProgramCache]: Analyzing trace with hash 860965923, now seen corresponding path program 1 times [2024-12-02 13:02:54,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:02:54,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630174099] [2024-12-02 13:02:54,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:02:54,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:02:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:02:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5970 trivial. 0 not checked. [2024-12-02 13:02:58,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:02:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630174099] [2024-12-02 13:02:58,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630174099] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:02:58,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:02:58,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:02:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733861431] [2024-12-02 13:02:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:02:58,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:02:58,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:02:58,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:02:58,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:02:58,629 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 341 [2024-12-02 13:02:58,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 712 transitions, 4356 flow. Second operand has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 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) [2024-12-02 13:02:58,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:02:58,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 341 [2024-12-02 13:02:58,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:03:00,886 INFO L124 PetriNetUnfolderBase]: 1309/5605 cut-off events. [2024-12-02 13:03:00,886 INFO L125 PetriNetUnfolderBase]: For 4997/5054 co-relation queries the response was YES. [2024-12-02 13:03:00,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13621 conditions, 5605 events. 1309/5605 cut-off events. For 4997/5054 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33914 event pairs, 369 based on Foata normal form. 11/5371 useless extension candidates. Maximal degree in co-relation 13346. Up to 2549 conditions per place. [2024-12-02 13:03:00,912 INFO L140 encePairwiseOnDemand]: 322/341 looper letters, 316 selfloop transitions, 84 changer transitions 0/791 dead transitions. [2024-12-02 13:03:00,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 791 transitions, 5554 flow [2024-12-02 13:03:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:03:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:03:01,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1684 transitions. [2024-12-02 13:03:01,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.823069403714565 [2024-12-02 13:03:01,027 INFO L175 Difference]: Start difference. First operand has 449 places, 712 transitions, 4356 flow. Second operand 6 states and 1684 transitions. [2024-12-02 13:03:01,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 791 transitions, 5554 flow [2024-12-02 13:03:01,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 791 transitions, 5300 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-12-02 13:03:01,047 INFO L231 Difference]: Finished difference. Result has 458 places, 783 transitions, 4892 flow [2024-12-02 13:03:01,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=4108, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4892, PETRI_PLACES=458, PETRI_TRANSITIONS=783} [2024-12-02 13:03:01,048 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 120 predicate places. [2024-12-02 13:03:01,048 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 783 transitions, 4892 flow [2024-12-02 13:03:01,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 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) [2024-12-02 13:03:01,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:03:01,048 INFO L206 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, 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] [2024-12-02 13:03:01,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:03:01,049 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:03:01,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:03:01,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1485790715, now seen corresponding path program 1 times [2024-12-02 13:03:01,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:03:01,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456011654] [2024-12-02 13:03:01,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:03:01,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:03:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:03:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 2106 proven. 3427 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-12-02 13:03:45,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:03:45,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456011654] [2024-12-02 13:03:45,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456011654] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:03:45,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760905599] [2024-12-02 13:03:45,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:03:45,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:03:45,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:03:45,354 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:03:45,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:03:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:03:46,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 4610 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-12-02 13:03:46,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:03:47,214 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 13:03:47,215 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 [2024-12-02 13:03:47,406 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 13:03:47,406 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 [2024-12-02 13:03:47,717 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-12-02 13:03:47,718 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 [2024-12-02 13:03:48,186 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-12-02 13:03:48,186 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 [2024-12-02 13:03:48,839 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-12-02 13:03:48,840 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 [2024-12-02 13:03:49,452 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-12-02 13:03:49,452 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 [2024-12-02 13:03:51,428 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-12-02 13:03:51,428 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 34 treesize of output 52 [2024-12-02 13:03:52,484 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-12-02 13:03:52,484 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 34 treesize of output 52 [2024-12-02 13:03:54,337 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-12-02 13:03:54,337 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 34 treesize of output 52 [2024-12-02 13:03:55,355 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2024-12-02 13:03:55,355 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 [2024-12-02 13:03:58,493 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-12-02 13:03:58,493 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 39 treesize of output 64 [2024-12-02 13:04:00,053 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-12-02 13:04:00,054 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 39 treesize of output 64 [2024-12-02 13:04:02,994 INFO L349 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2024-12-02 13:04:02,994 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 [2024-12-02 13:04:05,549 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-12-02 13:04:05,549 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 44 treesize of output 76 [2024-12-02 13:04:10,262 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-12-02 13:04:10,262 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 44 treesize of output 76 [2024-12-02 13:04:12,716 INFO L349 Elim1Store]: treesize reduction 84, result has 27.0 percent of original size [2024-12-02 13:04:12,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 54 [2024-12-02 13:04:17,159 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-12-02 13:04:17,159 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 44 treesize of output 76 [2024-12-02 13:04:19,584 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-12-02 13:04:19,585 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 44 treesize of output 76 [2024-12-02 13:04:24,019 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-12-02 13:04:24,019 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 44 treesize of output 76 [2024-12-02 13:04:26,494 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-12-02 13:04:26,495 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 44 treesize of output 76 [2024-12-02 13:04:32,279 INFO L349 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2024-12-02 13:04:32,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 46 [2024-12-02 13:04:32,365 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 [2024-12-02 13:04:32,406 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 [2024-12-02 13:04:32,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:04:32,459 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 [2024-12-02 13:04:32,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:04:32,523 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 [2024-12-02 13:04:32,586 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 51 treesize of output 40 [2024-12-02 13:04:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 4688 proven. 0 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2024-12-02 13:04:32,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:04:32,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760905599] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:04:32,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:04:32,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [38] total 50 [2024-12-02 13:04:32,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995158406] [2024-12-02 13:04:32,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:04:32,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 13:04:32,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:04:32,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 13:04:32,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=2195, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 13:04:36,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 341 [2024-12-02 13:04:36,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 783 transitions, 4892 flow. Second operand has 16 states, 16 states have (on average 280.5) internal successors, (4488), 16 states have internal predecessors, (4488), 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) [2024-12-02 13:04:36,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:04:36,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 341 [2024-12-02 13:04:36,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:04:40,116 INFO L124 PetriNetUnfolderBase]: 1046/4913 cut-off events. [2024-12-02 13:04:40,116 INFO L125 PetriNetUnfolderBase]: For 6258/6476 co-relation queries the response was YES. [2024-12-02 13:04:40,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12967 conditions, 4913 events. 1046/4913 cut-off events. For 6258/6476 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 27559 event pairs, 80 based on Foata normal form. 74/4842 useless extension candidates. Maximal degree in co-relation 12683. Up to 891 conditions per place. [2024-12-02 13:04:40,138 INFO L140 encePairwiseOnDemand]: 318/341 looper letters, 456 selfloop transitions, 146 changer transitions 1/969 dead transitions. [2024-12-02 13:04:40,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 969 transitions, 7154 flow [2024-12-02 13:04:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:04:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 13:04:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 6138 transitions. [2024-12-02 13:04:40,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2024-12-02 13:04:40,141 INFO L175 Difference]: Start difference. First operand has 458 places, 783 transitions, 4892 flow. Second operand 22 states and 6138 transitions. [2024-12-02 13:04:40,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 969 transitions, 7154 flow [2024-12-02 13:04:40,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 969 transitions, 7082 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-12-02 13:04:40,174 INFO L231 Difference]: Finished difference. Result has 490 places, 845 transitions, 5854 flow [2024-12-02 13:04:40,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=4838, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5854, PETRI_PLACES=490, PETRI_TRANSITIONS=845} [2024-12-02 13:04:40,175 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 152 predicate places. [2024-12-02 13:04:40,175 INFO L471 AbstractCegarLoop]: Abstraction has has 490 places, 845 transitions, 5854 flow [2024-12-02 13:04:40,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 280.5) internal successors, (4488), 16 states have internal predecessors, (4488), 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) [2024-12-02 13:04:40,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:04:40,176 INFO L206 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, 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] [2024-12-02 13:04:40,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 13:04:40,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-12-02 13:04:40,377 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:04:40,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:04:40,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1393420255, now seen corresponding path program 2 times [2024-12-02 13:04:40,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:04:40,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508073891] [2024-12-02 13:04:40,380 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:04:40,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:04:42,233 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:04:42,233 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:05:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 449 proven. 3162 refuted. 0 times theorem prover too weak. 2359 trivial. 0 not checked. [2024-12-02 13:05:13,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:05:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508073891] [2024-12-02 13:05:13,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508073891] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:05:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418224289] [2024-12-02 13:05:13,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:05:13,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:05:13,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:05:13,487 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:05:13,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:05:15,096 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:05:15,096 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:05:15,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 4610 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-12-02 13:05:15,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:05:15,444 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-12-02 13:05:15,444 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 [2024-12-02 13:05:15,814 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-12-02 13:05:15,815 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 [2024-12-02 13:05:16,742 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-12-02 13:05:16,742 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 [2024-12-02 13:05:17,379 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-12-02 13:05:17,379 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 29 treesize of output 40 [2024-12-02 13:05:18,755 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-12-02 13:05:18,755 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 [2024-12-02 13:05:19,874 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-12-02 13:05:19,874 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 34 treesize of output 52 [2024-12-02 13:05:21,774 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2024-12-02 13:05:21,775 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 [2024-12-02 13:05:23,295 INFO L349 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2024-12-02 13:05:23,295 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 [2024-12-02 13:05:28,055 INFO L349 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2024-12-02 13:05:28,055 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 [2024-12-02 13:05:32,561 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:05:32,561 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 49 treesize of output 88 [2024-12-02 13:05:42,368 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:05:42,369 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 49 treesize of output 88 [2024-12-02 13:05:47,134 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:05:47,134 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 49 treesize of output 88 [2024-12-02 13:05:55,068 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:05:55,069 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 49 treesize of output 88 [2024-12-02 13:06:00,886 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:06:00,887 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 49 treesize of output 88 [2024-12-02 13:06:09,097 INFO L349 Elim1Store]: treesize reduction 98, result has 26.9 percent of original size [2024-12-02 13:06:09,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 62 [2024-12-02 13:06:13,892 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:06:13,893 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 49 treesize of output 88 [2024-12-02 13:06:22,305 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:06:22,305 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 49 treesize of output 88 [2024-12-02 13:06:27,681 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:06:27,682 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 49 treesize of output 88 [2024-12-02 13:06:36,327 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:06:36,327 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 49 treesize of output 88 [2024-12-02 13:06:41,141 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-12-02 13:06:41,141 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 49 treesize of output 88 [2024-12-02 13:06:51,478 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 [2024-12-02 13:06:51,795 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 [2024-12-02 13:06:52,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:06:52,091 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 [2024-12-02 13:06:52,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:06:52,336 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 [2024-12-02 13:06:52,829 INFO L349 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2024-12-02 13:06:52,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 41 treesize of output 53 [2024-12-02 13:06:53,000 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 51 treesize of output 40 [2024-12-02 13:06:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 3370 proven. 419 refuted. 0 times theorem prover too weak. 2181 trivial. 0 not checked. [2024-12-02 13:06:53,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:53,130 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse0)) 0)) (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 3 .cse0)) 0)) (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0)) 0)))) is different from false [2024-12-02 13:06:53,165 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse0)) 0)) (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0)) 0)) (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_12318 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_12318) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 3 .cse0)) 0)))) is different from false [2024-12-02 13:06:53,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:06:53,787 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 [2024-12-02 13:06:53,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:06:53,793 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 [2024-12-02 13:06:53,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 9 treesize of output 3 [2024-12-02 13:06:53,803 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-12-02 13:06:53,803 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 51 treesize of output 1 [2024-12-02 13:06:53,810 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-12-02 13:06:53,810 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 51 treesize of output 1 [2024-12-02 13:06:53,815 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-12-02 13:06:53,815 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 51 treesize of output 1 [2024-12-02 13:07:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 3789 proven. 0 refuted. 0 times theorem prover too weak. 2181 trivial. 0 not checked. [2024-12-02 13:07:35,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418224289] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:35,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:07:35,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [28, 24] total 64 [2024-12-02 13:07:35,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175717302] [2024-12-02 13:07:35,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:35,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:07:35,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:35,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:07:35,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=3332, Unknown=26, NotChecked=246, Total=4160 [2024-12-02 13:07:39,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:07:43,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:07:47,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:07:51,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:07:55,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:07:59,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:03,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:07,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:11,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:15,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:19,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:23,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:27,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:31,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:35,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:39,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:43,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:47,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:51,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:55,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:08:59,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:03,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:07,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:11,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:16,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:20,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:24,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:28,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:32,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:36,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:40,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:44,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:48,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:52,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:09:56,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:00,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:04,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:08,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:12,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:16,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:20,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:24,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:28,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:32,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:36,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:40,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:44,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:48,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:52,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:10:56,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:00,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:04,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:08,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:12,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:16,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:20,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:24,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 13:11:24,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 341 [2024-12-02 13:11:24,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 845 transitions, 5854 flow. Second operand has 17 states, 17 states have (on average 208.35294117647058) internal successors, (3542), 17 states have internal predecessors, (3542), 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) [2024-12-02 13:11:24,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:11:24,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 341 [2024-12-02 13:11:24,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:11:40,215 INFO L124 PetriNetUnfolderBase]: 2503/8042 cut-off events. [2024-12-02 13:11:40,215 INFO L125 PetriNetUnfolderBase]: For 14904/14973 co-relation queries the response was YES. [2024-12-02 13:11:40,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25188 conditions, 8042 events. 2503/8042 cut-off events. For 14904/14973 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 53012 event pairs, 463 based on Foata normal form. 57/7793 useless extension candidates. Maximal degree in co-relation 24879. Up to 3767 conditions per place. [2024-12-02 13:11:40,253 INFO L140 encePairwiseOnDemand]: 294/341 looper letters, 634 selfloop transitions, 332 changer transitions 10/1227 dead transitions. [2024-12-02 13:11:40,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 1227 transitions, 9439 flow [2024-12-02 13:11:40,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 13:11:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-12-02 13:11:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3807 transitions. [2024-12-02 13:11:40,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6567189925823702 [2024-12-02 13:11:40,257 INFO L175 Difference]: Start difference. First operand has 490 places, 845 transitions, 5854 flow. Second operand 17 states and 3807 transitions. [2024-12-02 13:11:40,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 1227 transitions, 9439 flow [2024-12-02 13:11:40,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 1227 transitions, 9392 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-12-02 13:11:40,325 INFO L231 Difference]: Finished difference. Result has 510 places, 936 transitions, 7965 flow [2024-12-02 13:11:40,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=5830, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=845, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7965, PETRI_PLACES=510, PETRI_TRANSITIONS=936} [2024-12-02 13:11:40,326 INFO L279 CegarLoopForPetriNet]: 338 programPoint places, 172 predicate places. [2024-12-02 13:11:40,326 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 936 transitions, 7965 flow [2024-12-02 13:11:40,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 208.35294117647058) internal successors, (3542), 17 states have internal predecessors, (3542), 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) [2024-12-02 13:11:40,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:11:40,327 INFO L206 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, 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] [2024-12-02 13:11:40,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 13:11:40,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:11:40,528 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 13:11:40,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:40,531 INFO L85 PathProgramCache]: Analyzing trace with hash 647365679, now seen corresponding path program 3 times [2024-12-02 13:11:40,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:40,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317341701] [2024-12-02 13:11:40,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:11:40,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:44,568 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-12-02 13:11:44,568 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:12:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5970 backedges. 160 proven. 1618 refuted. 0 times theorem prover too weak. 4192 trivial. 0 not checked. [2024-12-02 13:12:27,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:27,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317341701] [2024-12-02 13:12:27,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317341701] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:12:27,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068164455] [2024-12-02 13:12:27,719 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:12:27,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:12:27,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:12:27,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:12:27,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5e9f03b-754d-482e-9fb5-cb34d1260e1f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process