./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.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_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB --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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:19:58,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:19:58,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:19:58,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:19:58,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:19:58,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:19:58,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:19:58,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:19:58,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:19:58,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:19:58,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:19:58,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:19:58,763 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:19:58,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:19:58,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:19:58,764 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:19:58,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:19:58,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:19:58,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:19:58,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:19:58,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:19:58,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:19:58,765 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:19:58,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:19:58,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:19:58,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:19:58,765 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:19:58,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:19:58,766 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:19:58,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:58,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:58,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:58,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:19:58,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:58,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:58,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:58,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:19:58,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:19:58,768 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:19:58,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:19:58,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:19:58,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:19:58,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:19:58,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:19:58,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:19:58,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:19:58,769 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_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-28 03:19:59,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:19:59,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:19:59,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:19:59,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:19:59,145 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:19:59,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-28 03:20:02,238 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/data/18ddb37c3/13dae654aee64226a6a602b6b3ab34a7/FLAG3442ce20b [2024-11-28 03:20:02,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:20:02,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-28 03:20:02,665 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/data/18ddb37c3/13dae654aee64226a6a602b6b3ab34a7/FLAG3442ce20b [2024-11-28 03:20:02,822 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/data/18ddb37c3/13dae654aee64226a6a602b6b3ab34a7 [2024-11-28 03:20:02,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:20:02,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:20:02,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:02,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:20:02,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:20:02,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:02" (1/1) ... [2024-11-28 03:20:02,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be19ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:02, skipping insertion in model container [2024-11-28 03:20:02,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:02" (1/1) ... [2024-11-28 03:20:02,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:20:03,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:03,447 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:20:03,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:03,577 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:20:03,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03 WrapperNode [2024-11-28 03:20:03,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:03,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:03,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:20:03,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:20:03,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,653 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-11-28 03:20:03,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:03,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:20:03,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:20:03,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:20:03,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,684 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:20:03,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:20:03,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:20:03,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:20:03,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (1/1) ... [2024-11-28 03:20:03,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:03,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:03,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:20:03,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:20:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:20:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:20:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:20:03,797 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:20:04,002 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:20:04,006 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:20:04,534 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:20:04,534 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:20:04,577 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:20:04,577 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:20:04,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:04 BoogieIcfgContainer [2024-11-28 03:20:04,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:20:04,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:20:04,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:20:04,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:20:04,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:02" (1/3) ... [2024-11-28 03:20:04,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a5256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:04, skipping insertion in model container [2024-11-28 03:20:04,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:03" (2/3) ... [2024-11-28 03:20:04,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a5256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:04, skipping insertion in model container [2024-11-28 03:20:04,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:04" (3/3) ... [2024-11-28 03:20:04,588 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-28 03:20:04,607 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:20:04,609 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_06-tricky_address1.i that has 2 procedures, 158 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-28 03:20:04,609 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:20:04,710 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:20:04,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 161 transitions, 326 flow [2024-11-28 03:20:04,900 INFO L124 PetriNetUnfolderBase]: 4/160 cut-off events. [2024-11-28 03:20:04,905 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:20:04,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 4/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-28 03:20:04,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 161 transitions, 326 flow [2024-11-28 03:20:04,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 160 transitions, 323 flow [2024-11-28 03:20:04,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:20:04,949 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;@6f035323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:20:04,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 03:20:05,008 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:20:05,008 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-28 03:20:05,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:20:05,008 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:05,009 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] [2024-11-28 03:20:05,009 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:05,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1129090698, now seen corresponding path program 1 times [2024-11-28 03:20:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:05,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724223049] [2024-11-28 03:20:05,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:05,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:05,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724223049] [2024-11-28 03:20:05,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724223049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:05,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:05,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:05,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168622480] [2024-11-28 03:20:05,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:05,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:05,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:05,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:05,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:05,690 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2024-11-28 03:20:05,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 160 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:05,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:05,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2024-11-28 03:20:05,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:05,782 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-11-28 03:20:05,783 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:20:05,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2024-11-28 03:20:05,786 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-28 03:20:05,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2024-11-28 03:20:05,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:20:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-28 03:20:05,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2024-11-28 03:20:05,808 INFO L175 Difference]: Start difference. First operand has 160 places, 160 transitions, 323 flow. Second operand 3 states and 458 transitions. [2024-11-28 03:20:05,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2024-11-28 03:20:05,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:05,827 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2024-11-28 03:20:05,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-28 03:20:05,838 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2024-11-28 03:20:05,838 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2024-11-28 03:20:05,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:05,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:05,839 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] [2024-11-28 03:20:05,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:20:05,840 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:05,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1376573233, now seen corresponding path program 1 times [2024-11-28 03:20:05,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:05,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199350221] [2024-11-28 03:20:05,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:05,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:06,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199350221] [2024-11-28 03:20:06,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199350221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:06,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131533818] [2024-11-28 03:20:06,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:06,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:06,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:06,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:06,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:20:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:06,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:20:06,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:06,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:06,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131533818] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:06,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:06,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:20:06,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418869473] [2024-11-28 03:20:06,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:06,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:20:06,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:06,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:20:06,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:20:06,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 03:20:06,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:06,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:06,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 03:20:06,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:06,803 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2024-11-28 03:20:06,803 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:20:06,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 316 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2024-11-28 03:20:06,806 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-28 03:20:06,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2024-11-28 03:20:06,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:20:06,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:20:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-28 03:20:06,818 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.911663216011042 [2024-11-28 03:20:06,819 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2024-11-28 03:20:06,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2024-11-28 03:20:06,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:06,825 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2024-11-28 03:20:06,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2024-11-28 03:20:06,829 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-28 03:20:06,829 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2024-11-28 03:20:06,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:06,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:06,830 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] [2024-11-28 03:20:06,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:20:07,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:07,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:07,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1016235601, now seen corresponding path program 2 times [2024-11-28 03:20:07,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:07,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842987515] [2024-11-28 03:20:07,033 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:07,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:07,088 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:20:07,092 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:20:08,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842987515] [2024-11-28 03:20:08,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842987515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:08,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:08,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:20:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30173764] [2024-11-28 03:20:08,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:08,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:20:08,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:08,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:20:08,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:08,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2024-11-28 03:20:08,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:08,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:08,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2024-11-28 03:20:08,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:09,306 INFO L124 PetriNetUnfolderBase]: 103/540 cut-off events. [2024-11-28 03:20:09,306 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:20:09,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 540 events. 103/540 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2330 event pairs, 40 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 693. Up to 184 conditions per place. [2024-11-28 03:20:09,312 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 31 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2024-11-28 03:20:09,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 192 transitions, 538 flow [2024-11-28 03:20:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:20:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2024-11-28 03:20:09,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8881987577639752 [2024-11-28 03:20:09,317 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 858 transitions. [2024-11-28 03:20:09,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 192 transitions, 538 flow [2024-11-28 03:20:09,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 192 transitions, 532 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:09,331 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 518 flow [2024-11-28 03:20:09,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2024-11-28 03:20:09,332 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 20 predicate places. [2024-11-28 03:20:09,332 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 518 flow [2024-11-28 03:20:09,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:09,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:09,333 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] [2024-11-28 03:20:09,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:20:09,334 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:09,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:09,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1659974846, now seen corresponding path program 1 times [2024-11-28 03:20:09,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:09,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80771251] [2024-11-28 03:20:09,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:09,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:09,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:09,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80771251] [2024-11-28 03:20:09,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80771251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:09,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879353219] [2024-11-28 03:20:09,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:09,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:09,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:20:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:09,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:20:09,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:09,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:10,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879353219] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:10,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:10,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 03:20:10,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153010282] [2024-11-28 03:20:10,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:10,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:20:10,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:10,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:20:10,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:20:10,053 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 03:20:10,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 518 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:10,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:10,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 03:20:10,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:10,417 INFO L124 PetriNetUnfolderBase]: 47/408 cut-off events. [2024-11-28 03:20:10,417 INFO L125 PetriNetUnfolderBase]: For 54/57 co-relation queries the response was YES. [2024-11-28 03:20:10,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 408 events. 47/408 cut-off events. For 54/57 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1240 event pairs, 11 based on Foata normal form. 4/396 useless extension candidates. Maximal degree in co-relation 506. Up to 51 conditions per place. [2024-11-28 03:20:10,420 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 18 selfloop transitions, 21 changer transitions 0/202 dead transitions. [2024-11-28 03:20:10,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 202 transitions, 684 flow [2024-11-28 03:20:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:20:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:20:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2024-11-28 03:20:10,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9071280686187518 [2024-11-28 03:20:10,430 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 518 flow. Second operand 21 states and 3067 transitions. [2024-11-28 03:20:10,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 202 transitions, 684 flow [2024-11-28 03:20:10,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:20:10,442 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 648 flow [2024-11-28 03:20:10,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=648, PETRI_PLACES=205, PETRI_TRANSITIONS=197} [2024-11-28 03:20:10,444 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 45 predicate places. [2024-11-28 03:20:10,444 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 648 flow [2024-11-28 03:20:10,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:10,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:10,447 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] [2024-11-28 03:20:10,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:10,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:10,651 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:10,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:10,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1722331522, now seen corresponding path program 2 times [2024-11-28 03:20:10,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:10,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680102609] [2024-11-28 03:20:10,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:10,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:10,686 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:20:10,688 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:20:11,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:11,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680102609] [2024-11-28 03:20:11,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680102609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:11,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:11,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:20:11,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125334772] [2024-11-28 03:20:11,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:11,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:20:11,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:11,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:20:11,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:11,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 161 [2024-11-28 03:20:11,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 197 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:11,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:11,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 161 [2024-11-28 03:20:11,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:12,263 INFO L124 PetriNetUnfolderBase]: 223/892 cut-off events. [2024-11-28 03:20:12,263 INFO L125 PetriNetUnfolderBase]: For 189/195 co-relation queries the response was YES. [2024-11-28 03:20:12,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 892 events. 223/892 cut-off events. For 189/195 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4681 event pairs, 82 based on Foata normal form. 5/839 useless extension candidates. Maximal degree in co-relation 1566. Up to 407 conditions per place. [2024-11-28 03:20:12,269 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 53 selfloop transitions, 39 changer transitions 5/242 dead transitions. [2024-11-28 03:20:12,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 242 transitions, 962 flow [2024-11-28 03:20:12,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:20:12,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2024-11-28 03:20:12,272 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8737060041407867 [2024-11-28 03:20:12,272 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 648 flow. Second operand 6 states and 844 transitions. [2024-11-28 03:20:12,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 242 transitions, 962 flow [2024-11-28 03:20:12,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 242 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 03:20:12,281 INFO L231 Difference]: Finished difference. Result has 209 places, 233 transitions, 912 flow [2024-11-28 03:20:12,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=209, PETRI_TRANSITIONS=233} [2024-11-28 03:20:12,282 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 49 predicate places. [2024-11-28 03:20:12,282 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 233 transitions, 912 flow [2024-11-28 03:20:12,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:12,282 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:12,283 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] [2024-11-28 03:20:12,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:20:12,283 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:12,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:12,284 INFO L85 PathProgramCache]: Analyzing trace with hash -633472428, now seen corresponding path program 1 times [2024-11-28 03:20:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:12,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068924957] [2024-11-28 03:20:12,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:12,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068924957] [2024-11-28 03:20:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068924957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707453373] [2024-11-28 03:20:12,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:12,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:12,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:12,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:12,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:20:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:12,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:20:12,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:13,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:13,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707453373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:13,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:13,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 03:20:13,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027848210] [2024-11-28 03:20:13,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:13,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:20:13,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:13,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:20:13,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:20:13,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 03:20:13,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 233 transitions, 912 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:13,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:13,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 03:20:13,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:13,982 INFO L124 PetriNetUnfolderBase]: 117/655 cut-off events. [2024-11-28 03:20:13,982 INFO L125 PetriNetUnfolderBase]: For 327/332 co-relation queries the response was YES. [2024-11-28 03:20:13,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 655 events. 117/655 cut-off events. For 327/332 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2894 event pairs, 15 based on Foata normal form. 3/630 useless extension candidates. Maximal degree in co-relation 1115. Up to 118 conditions per place. [2024-11-28 03:20:13,990 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 21 selfloop transitions, 30 changer transitions 0/250 dead transitions. [2024-11-28 03:20:13,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 250 transitions, 1136 flow [2024-11-28 03:20:13,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:20:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 03:20:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2024-11-28 03:20:14,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9055900621118013 [2024-11-28 03:20:14,001 INFO L175 Difference]: Start difference. First operand has 209 places, 233 transitions, 912 flow. Second operand 30 states and 4374 transitions. [2024-11-28 03:20:14,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 250 transitions, 1136 flow [2024-11-28 03:20:14,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 250 transitions, 1104 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-28 03:20:14,012 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 1032 flow [2024-11-28 03:20:14,012 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1032, PETRI_PLACES=241, PETRI_TRANSITIONS=243} [2024-11-28 03:20:14,013 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 81 predicate places. [2024-11-28 03:20:14,013 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 1032 flow [2024-11-28 03:20:14,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:14,015 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:14,016 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] [2024-11-28 03:20:14,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:20:14,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 03:20:14,220 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:14,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:14,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1687787697, now seen corresponding path program 2 times [2024-11-28 03:20:14,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:14,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800889910] [2024-11-28 03:20:14,222 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:14,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:14,253 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:20:14,253 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:20:14,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:14,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800889910] [2024-11-28 03:20:14,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800889910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:14,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:14,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:20:14,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942268162] [2024-11-28 03:20:14,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:14,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:20:14,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:14,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:20:14,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:14,903 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2024-11-28 03:20:14,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 243 transitions, 1032 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:14,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:14,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2024-11-28 03:20:14,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:15,235 INFO L124 PetriNetUnfolderBase]: 212/925 cut-off events. [2024-11-28 03:20:15,235 INFO L125 PetriNetUnfolderBase]: For 576/620 co-relation queries the response was YES. [2024-11-28 03:20:15,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 925 events. 212/925 cut-off events. For 576/620 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4921 event pairs, 40 based on Foata normal form. 1/908 useless extension candidates. Maximal degree in co-relation 1908. Up to 338 conditions per place. [2024-11-28 03:20:15,242 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 72 selfloop transitions, 40 changer transitions 0/282 dead transitions. [2024-11-28 03:20:15,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 282 transitions, 1440 flow [2024-11-28 03:20:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:20:15,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-28 03:20:15,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9037267080745341 [2024-11-28 03:20:15,245 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 1032 flow. Second operand 6 states and 873 transitions. [2024-11-28 03:20:15,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 282 transitions, 1440 flow [2024-11-28 03:20:15,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 282 transitions, 1394 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-28 03:20:15,258 INFO L231 Difference]: Finished difference. Result has 233 places, 274 transitions, 1354 flow [2024-11-28 03:20:15,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1354, PETRI_PLACES=233, PETRI_TRANSITIONS=274} [2024-11-28 03:20:15,259 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 73 predicate places. [2024-11-28 03:20:15,259 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 274 transitions, 1354 flow [2024-11-28 03:20:15,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:15,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:15,260 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] [2024-11-28 03:20:15,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:20:15,260 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:15,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:15,262 INFO L85 PathProgramCache]: Analyzing trace with hash 82185300, now seen corresponding path program 1 times [2024-11-28 03:20:15,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:15,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184500159] [2024-11-28 03:20:15,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:15,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:20:15,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:15,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184500159] [2024-11-28 03:20:15,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184500159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:15,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:15,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:20:15,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276090359] [2024-11-28 03:20:15,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:15,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:20:15,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:15,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:20:15,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:16,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-11-28 03:20:16,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 274 transitions, 1354 flow. Second operand has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:16,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:16,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-11-28 03:20:16,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:16,546 INFO L124 PetriNetUnfolderBase]: 361/1326 cut-off events. [2024-11-28 03:20:16,546 INFO L125 PetriNetUnfolderBase]: For 1444/1472 co-relation queries the response was YES. [2024-11-28 03:20:16,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 1326 events. 361/1326 cut-off events. For 1444/1472 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7954 event pairs, 87 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 3405. Up to 610 conditions per place. [2024-11-28 03:20:16,558 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 100 selfloop transitions, 64 changer transitions 10/335 dead transitions. [2024-11-28 03:20:16,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 335 transitions, 2042 flow [2024-11-28 03:20:16,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:20:16,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2024-11-28 03:20:16,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8892339544513458 [2024-11-28 03:20:16,562 INFO L175 Difference]: Start difference. First operand has 233 places, 274 transitions, 1354 flow. Second operand 6 states and 859 transitions. [2024-11-28 03:20:16,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 335 transitions, 2042 flow [2024-11-28 03:20:16,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 335 transitions, 2024 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-28 03:20:16,587 INFO L231 Difference]: Finished difference. Result has 243 places, 321 transitions, 1922 flow [2024-11-28 03:20:16,587 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1922, PETRI_PLACES=243, PETRI_TRANSITIONS=321} [2024-11-28 03:20:16,588 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 83 predicate places. [2024-11-28 03:20:16,588 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 321 transitions, 1922 flow [2024-11-28 03:20:16,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:16,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:16,589 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] [2024-11-28 03:20:16,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:20:16,590 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:16,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:16,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1223242866, now seen corresponding path program 1 times [2024-11-28 03:20:16,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:16,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005246732] [2024-11-28 03:20:16,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:16,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:20:35,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:35,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005246732] [2024-11-28 03:20:35,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005246732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:35,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:35,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:20:35,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665075171] [2024-11-28 03:20:35,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:35,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:20:35,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:35,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:20:35,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:20:41,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 161 [2024-11-28 03:20:41,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 321 transitions, 1922 flow. Second operand has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:41,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:41,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 161 [2024-11-28 03:20:41,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:44,167 INFO L124 PetriNetUnfolderBase]: 566/1804 cut-off events. [2024-11-28 03:20:44,168 INFO L125 PetriNetUnfolderBase]: For 3423/3503 co-relation queries the response was YES. [2024-11-28 03:20:44,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 1804 events. 566/1804 cut-off events. For 3423/3503 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11264 event pairs, 32 based on Foata normal form. 37/1829 useless extension candidates. Maximal degree in co-relation 5589. Up to 562 conditions per place. [2024-11-28 03:20:44,184 INFO L140 encePairwiseOnDemand]: 131/161 looper letters, 227 selfloop transitions, 87 changer transitions 73/530 dead transitions. [2024-11-28 03:20:44,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 530 transitions, 4108 flow [2024-11-28 03:20:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:20:44,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-28 03:20:44,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2892 transitions. [2024-11-28 03:20:44,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7484472049689441 [2024-11-28 03:20:44,195 INFO L175 Difference]: Start difference. First operand has 243 places, 321 transitions, 1922 flow. Second operand 24 states and 2892 transitions. [2024-11-28 03:20:44,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 530 transitions, 4108 flow [2024-11-28 03:20:44,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 530 transitions, 4022 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-28 03:20:44,234 INFO L231 Difference]: Finished difference. Result has 274 places, 358 transitions, 2488 flow [2024-11-28 03:20:44,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2488, PETRI_PLACES=274, PETRI_TRANSITIONS=358} [2024-11-28 03:20:44,237 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 114 predicate places. [2024-11-28 03:20:44,237 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 358 transitions, 2488 flow [2024-11-28 03:20:44,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:44,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:44,239 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] [2024-11-28 03:20:44,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:20:44,239 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:44,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1348389900, now seen corresponding path program 2 times [2024-11-28 03:20:44,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:44,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92219120] [2024-11-28 03:20:44,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:44,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:44,305 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:20:44,305 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:20:49,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:49,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92219120] [2024-11-28 03:20:49,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92219120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:49,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:49,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:20:49,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637584658] [2024-11-28 03:20:49,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:49,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:20:49,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:49,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:20:49,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:20:52,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 161 [2024-11-28 03:20:52,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 358 transitions, 2488 flow. Second operand has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:52,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:52,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 161 [2024-11-28 03:20:52,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:54,588 INFO L124 PetriNetUnfolderBase]: 456/1552 cut-off events. [2024-11-28 03:20:54,588 INFO L125 PetriNetUnfolderBase]: For 4321/4450 co-relation queries the response was YES. [2024-11-28 03:20:54,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5962 conditions, 1552 events. 456/1552 cut-off events. For 4321/4450 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9614 event pairs, 80 based on Foata normal form. 63/1598 useless extension candidates. Maximal degree in co-relation 5675. Up to 662 conditions per place. [2024-11-28 03:20:54,600 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 174 selfloop transitions, 89 changer transitions 32/441 dead transitions. [2024-11-28 03:20:54,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 441 transitions, 3707 flow [2024-11-28 03:20:54,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:20:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:20:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1786 transitions. [2024-11-28 03:20:54,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7923691215616682 [2024-11-28 03:20:54,604 INFO L175 Difference]: Start difference. First operand has 274 places, 358 transitions, 2488 flow. Second operand 14 states and 1786 transitions. [2024-11-28 03:20:54,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 441 transitions, 3707 flow [2024-11-28 03:20:54,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 441 transitions, 3661 flow, removed 12 selfloop flow, removed 9 redundant places. [2024-11-28 03:20:54,649 INFO L231 Difference]: Finished difference. Result has 276 places, 362 transitions, 2698 flow [2024-11-28 03:20:54,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2447, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2698, PETRI_PLACES=276, PETRI_TRANSITIONS=362} [2024-11-28 03:20:54,650 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 116 predicate places. [2024-11-28 03:20:54,650 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 362 transitions, 2698 flow [2024-11-28 03:20:54,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:54,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:54,651 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] [2024-11-28 03:20:54,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:20:54,652 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:54,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:54,653 INFO L85 PathProgramCache]: Analyzing trace with hash 563134084, now seen corresponding path program 3 times [2024-11-28 03:20:54,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:54,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965961823] [2024-11-28 03:20:54,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:54,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:54,681 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:20:54,681 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:20:55,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965961823] [2024-11-28 03:20:55,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965961823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:55,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:55,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:20:55,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878506567] [2024-11-28 03:20:55,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:55,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:20:55,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:55,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:20:55,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:20:57,045 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:20:57,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 362 transitions, 2698 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:57,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:57,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:20:57,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:58,152 INFO L124 PetriNetUnfolderBase]: 780/2434 cut-off events. [2024-11-28 03:20:58,152 INFO L125 PetriNetUnfolderBase]: For 9350/9485 co-relation queries the response was YES. [2024-11-28 03:20:58,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10410 conditions, 2434 events. 780/2434 cut-off events. For 9350/9485 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 17650 event pairs, 58 based on Foata normal form. 59/2460 useless extension candidates. Maximal degree in co-relation 10120. Up to 632 conditions per place. [2024-11-28 03:20:58,175 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 348 selfloop transitions, 95 changer transitions 12/611 dead transitions. [2024-11-28 03:20:58,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 611 transitions, 6201 flow [2024-11-28 03:20:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:20:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:20:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1509 transitions. [2024-11-28 03:20:58,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8520609824957651 [2024-11-28 03:20:58,182 INFO L175 Difference]: Start difference. First operand has 276 places, 362 transitions, 2698 flow. Second operand 11 states and 1509 transitions. [2024-11-28 03:20:58,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 611 transitions, 6201 flow [2024-11-28 03:20:58,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 611 transitions, 6039 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-28 03:20:58,258 INFO L231 Difference]: Finished difference. Result has 284 places, 442 transitions, 4094 flow [2024-11-28 03:20:58,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2616, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4094, PETRI_PLACES=284, PETRI_TRANSITIONS=442} [2024-11-28 03:20:58,259 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 124 predicate places. [2024-11-28 03:20:58,259 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 442 transitions, 4094 flow [2024-11-28 03:20:58,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:58,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:58,260 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] [2024-11-28 03:20:58,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:20:58,260 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:20:58,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash -575987128, now seen corresponding path program 4 times [2024-11-28 03:20:58,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:58,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835863428] [2024-11-28 03:20:58,262 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:20:58,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:58,328 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:20:58,331 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:20:59,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:59,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835863428] [2024-11-28 03:20:59,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835863428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:59,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:59,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:20:59,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540866093] [2024-11-28 03:20:59,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:59,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:20:59,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:59,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:20:59,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:21:02,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-28 03:21:02,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 442 transitions, 4094 flow. Second operand has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:02,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:02,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-28 03:21:02,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:04,055 INFO L124 PetriNetUnfolderBase]: 860/2732 cut-off events. [2024-11-28 03:21:04,055 INFO L125 PetriNetUnfolderBase]: For 13436/13561 co-relation queries the response was YES. [2024-11-28 03:21:04,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11980 conditions, 2732 events. 860/2732 cut-off events. For 13436/13561 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20286 event pairs, 73 based on Foata normal form. 48/2755 useless extension candidates. Maximal degree in co-relation 11683. Up to 658 conditions per place. [2024-11-28 03:21:04,075 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 406 selfloop transitions, 115 changer transitions 21/691 dead transitions. [2024-11-28 03:21:04,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 691 transitions, 7540 flow [2024-11-28 03:21:04,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:21:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:21:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2108 transitions. [2024-11-28 03:21:04,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8183229813664596 [2024-11-28 03:21:04,078 INFO L175 Difference]: Start difference. First operand has 284 places, 442 transitions, 4094 flow. Second operand 16 states and 2108 transitions. [2024-11-28 03:21:04,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 691 transitions, 7540 flow [2024-11-28 03:21:04,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 691 transitions, 7492 flow, removed 24 selfloop flow, removed 0 redundant places. [2024-11-28 03:21:04,182 INFO L231 Difference]: Finished difference. Result has 305 places, 472 transitions, 4855 flow [2024-11-28 03:21:04,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4046, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4855, PETRI_PLACES=305, PETRI_TRANSITIONS=472} [2024-11-28 03:21:04,185 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 145 predicate places. [2024-11-28 03:21:04,186 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 472 transitions, 4855 flow [2024-11-28 03:21:04,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:04,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:04,188 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] [2024-11-28 03:21:04,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:21:04,189 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:21:04,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:04,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1952030626, now seen corresponding path program 5 times [2024-11-28 03:21:04,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:04,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793452541] [2024-11-28 03:21:04,190 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:21:04,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:04,311 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:21:04,311 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:10,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:10,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793452541] [2024-11-28 03:21:10,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793452541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:10,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651301564] [2024-11-28 03:21:10,938 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:21:10,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:10,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:10,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:10,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:21:11,128 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:21:11,128 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:11,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 03:21:11,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:11,262 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 16 treesize of output 12 [2024-11-28 03:21:11,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:21:11,406 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 28 treesize of output 27 [2024-11-28 03:21:11,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 03:21:11,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 03:21:11,983 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-28 03:21:11,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-11-28 03:21:12,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:12,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:12,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:12,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:12,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:21:12,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-11-28 03:21:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:21:12,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:13,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 49 treesize of output 47 [2024-11-28 03:21:13,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 19 [2024-11-28 03:21:13,553 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 15 treesize of output 8 [2024-11-28 03:21:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:21:13,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651301564] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:13,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:21:13,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [31, 25] total 47 [2024-11-28 03:21:13,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571602092] [2024-11-28 03:21:13,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:13,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:21:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:13,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:21:13,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=2079, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 03:21:16,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-28 03:21:16,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 472 transitions, 4855 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:16,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:16,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-28 03:21:16,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:19,459 INFO L124 PetriNetUnfolderBase]: 1329/4017 cut-off events. [2024-11-28 03:21:19,459 INFO L125 PetriNetUnfolderBase]: For 26849/27145 co-relation queries the response was YES. [2024-11-28 03:21:19,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19932 conditions, 4017 events. 1329/4017 cut-off events. For 26849/27145 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32960 event pairs, 134 based on Foata normal form. 117/4094 useless extension candidates. Maximal degree in co-relation 19627. Up to 1142 conditions per place. [2024-11-28 03:21:19,501 INFO L140 encePairwiseOnDemand]: 133/161 looper letters, 359 selfloop transitions, 278 changer transitions 14/804 dead transitions. [2024-11-28 03:21:19,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 804 transitions, 10376 flow [2024-11-28 03:21:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:21:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:21:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2779 transitions. [2024-11-28 03:21:19,504 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8219461697722568 [2024-11-28 03:21:19,504 INFO L175 Difference]: Start difference. First operand has 305 places, 472 transitions, 4855 flow. Second operand 21 states and 2779 transitions. [2024-11-28 03:21:19,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 804 transitions, 10376 flow [2024-11-28 03:21:19,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 804 transitions, 10156 flow, removed 99 selfloop flow, removed 7 redundant places. [2024-11-28 03:21:19,626 INFO L231 Difference]: Finished difference. Result has 333 places, 646 transitions, 8562 flow [2024-11-28 03:21:19,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4700, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8562, PETRI_PLACES=333, PETRI_TRANSITIONS=646} [2024-11-28 03:21:19,627 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 173 predicate places. [2024-11-28 03:21:19,627 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 646 transitions, 8562 flow [2024-11-28 03:21:19,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:19,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:19,628 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] [2024-11-28 03:21:19,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:19,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:21:19,828 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:21:19,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:19,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1555694604, now seen corresponding path program 1 times [2024-11-28 03:21:19,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:19,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877078272] [2024-11-28 03:21:19,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:19,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:21:25,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:25,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877078272] [2024-11-28 03:21:25,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877078272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:25,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766834717] [2024-11-28 03:21:25,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:25,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:25,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:25,760 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:25,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:21:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:25,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 03:21:25,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:26,298 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 16 treesize of output 12 [2024-11-28 03:21:26,445 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-28 03:21:26,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-11-28 03:21:26,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 03:21:26,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 03:21:26,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-28 03:21:26,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-28 03:21:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:26,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:26,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:21:26,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 47 [2024-11-28 03:21:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:21:27,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:21:28,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766834717] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:28,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:21:28,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 25] total 43 [2024-11-28 03:21:28,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664528374] [2024-11-28 03:21:28,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:28,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:21:28,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:28,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:21:28,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 03:21:36,792 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-11-28 03:21:36,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 646 transitions, 8562 flow. Second operand has 11 states, 11 states have (on average 132.36363636363637) internal successors, (1456), 11 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:36,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:36,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-11-28 03:21:36,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:39,376 INFO L124 PetriNetUnfolderBase]: 1063/3465 cut-off events. [2024-11-28 03:21:39,376 INFO L125 PetriNetUnfolderBase]: For 33914/34231 co-relation queries the response was YES. [2024-11-28 03:21:39,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19173 conditions, 3465 events. 1063/3465 cut-off events. For 33914/34231 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 28646 event pairs, 45 based on Foata normal form. 91/3534 useless extension candidates. Maximal degree in co-relation 18854. Up to 805 conditions per place. [2024-11-28 03:21:39,409 INFO L140 encePairwiseOnDemand]: 144/161 looper letters, 408 selfloop transitions, 149 changer transitions 39/821 dead transitions. [2024-11-28 03:21:39,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 821 transitions, 11688 flow [2024-11-28 03:21:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:21:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 03:21:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2491 transitions. [2024-11-28 03:21:39,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8595583160800552 [2024-11-28 03:21:39,415 INFO L175 Difference]: Start difference. First operand has 333 places, 646 transitions, 8562 flow. Second operand 18 states and 2491 transitions. [2024-11-28 03:21:39,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 821 transitions, 11688 flow [2024-11-28 03:21:39,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 821 transitions, 11522 flow, removed 83 selfloop flow, removed 0 redundant places. [2024-11-28 03:21:39,745 INFO L231 Difference]: Finished difference. Result has 358 places, 707 transitions, 9852 flow [2024-11-28 03:21:39,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=8444, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=9852, PETRI_PLACES=358, PETRI_TRANSITIONS=707} [2024-11-28 03:21:39,748 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 198 predicate places. [2024-11-28 03:21:39,748 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 707 transitions, 9852 flow [2024-11-28 03:21:39,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.36363636363637) internal successors, (1456), 11 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:39,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:39,749 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] [2024-11-28 03:21:39,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:39,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:21:39,950 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:21:39,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1950771942, now seen corresponding path program 6 times [2024-11-28 03:21:39,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88442251] [2024-11-28 03:21:39,953 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:21:39,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:39,983 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 03:21:39,983 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:21:40,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:40,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88442251] [2024-11-28 03:21:40,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88442251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:40,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:40,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:21:40,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451830790] [2024-11-28 03:21:40,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:40,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:21:40,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:40,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:21:40,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:21:42,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:21:42,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 707 transitions, 9852 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:42,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:42,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:21:42,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:44,139 INFO L124 PetriNetUnfolderBase]: 1277/3907 cut-off events. [2024-11-28 03:21:44,139 INFO L125 PetriNetUnfolderBase]: For 41665/42036 co-relation queries the response was YES. [2024-11-28 03:21:44,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23171 conditions, 3907 events. 1277/3907 cut-off events. For 41665/42036 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32209 event pairs, 160 based on Foata normal form. 196/4042 useless extension candidates. Maximal degree in co-relation 22842. Up to 1814 conditions per place. [2024-11-28 03:21:44,191 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 283 selfloop transitions, 311 changer transitions 14/772 dead transitions. [2024-11-28 03:21:44,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 772 transitions, 12068 flow [2024-11-28 03:21:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:21:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 03:21:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1627 transitions. [2024-11-28 03:21:44,195 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421325051759835 [2024-11-28 03:21:44,195 INFO L175 Difference]: Start difference. First operand has 358 places, 707 transitions, 9852 flow. Second operand 12 states and 1627 transitions. [2024-11-28 03:21:44,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 772 transitions, 12068 flow [2024-11-28 03:21:44,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 772 transitions, 11952 flow, removed 58 selfloop flow, removed 2 redundant places. [2024-11-28 03:21:44,621 INFO L231 Difference]: Finished difference. Result has 367 places, 726 transitions, 10851 flow [2024-11-28 03:21:44,622 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=9744, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10851, PETRI_PLACES=367, PETRI_TRANSITIONS=726} [2024-11-28 03:21:44,622 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 207 predicate places. [2024-11-28 03:21:44,622 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 726 transitions, 10851 flow [2024-11-28 03:21:44,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:44,623 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:44,623 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] [2024-11-28 03:21:44,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:21:44,624 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:21:44,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash -863028476, now seen corresponding path program 7 times [2024-11-28 03:21:44,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:44,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674436458] [2024-11-28 03:21:44,626 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:21:44,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:21:58,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:58,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674436458] [2024-11-28 03:21:58,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674436458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:58,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642797282] [2024-11-28 03:21:58,482 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:21:58,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:58,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:58,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:58,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:21:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:58,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 03:21:58,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:58,839 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 16 treesize of output 12 [2024-11-28 03:21:59,036 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-28 03:21:59,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-11-28 03:21:59,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:21:59,145 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 28 treesize of output 27 [2024-11-28 03:21:59,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 03:21:59,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 03:21:59,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:59,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:59,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:59,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:59,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:21:59,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-11-28 03:21:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-28 03:21:59,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:00,944 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:22:00,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642797282] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:00,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:22:00,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 15] total 36 [2024-11-28 03:22:00,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062268204] [2024-11-28 03:22:00,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:00,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:22:00,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:00,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:22:00,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:22:08,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-28 03:22:08,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 726 transitions, 10851 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:08,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:22:08,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-28 03:22:08,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:22:12,842 INFO L124 PetriNetUnfolderBase]: 1264/3894 cut-off events. [2024-11-28 03:22:12,842 INFO L125 PetriNetUnfolderBase]: For 46013/46313 co-relation queries the response was YES. [2024-11-28 03:22:12,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23877 conditions, 3894 events. 1264/3894 cut-off events. For 46013/46313 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 31999 event pairs, 102 based on Foata normal form. 154/4003 useless extension candidates. Maximal degree in co-relation 23544. Up to 1228 conditions per place. [2024-11-28 03:22:12,887 INFO L140 encePairwiseOnDemand]: 142/161 looper letters, 494 selfloop transitions, 231 changer transitions 19/903 dead transitions. [2024-11-28 03:22:12,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 903 transitions, 14459 flow [2024-11-28 03:22:12,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:22:12,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 03:22:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1651 transitions. [2024-11-28 03:22:12,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8545548654244306 [2024-11-28 03:22:12,890 INFO L175 Difference]: Start difference. First operand has 367 places, 726 transitions, 10851 flow. Second operand 12 states and 1651 transitions. [2024-11-28 03:22:12,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 903 transitions, 14459 flow [2024-11-28 03:22:13,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 903 transitions, 13836 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-11-28 03:22:13,200 INFO L231 Difference]: Finished difference. Result has 376 places, 760 transitions, 11589 flow [2024-11-28 03:22:13,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=10289, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11589, PETRI_PLACES=376, PETRI_TRANSITIONS=760} [2024-11-28 03:22:13,201 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 216 predicate places. [2024-11-28 03:22:13,201 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 760 transitions, 11589 flow [2024-11-28 03:22:13,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:13,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:22:13,202 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] [2024-11-28 03:22:13,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:13,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:22:13,402 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:22:13,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -96084428, now seen corresponding path program 8 times [2024-11-28 03:22:13,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:13,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431185707] [2024-11-28 03:22:13,404 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:13,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:13,439 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:22:13,440 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:22:14,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:14,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431185707] [2024-11-28 03:22:14,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431185707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:14,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:22:14,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662494181] [2024-11-28 03:22:14,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:14,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:22:14,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:14,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:22:14,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:22:15,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:22:15,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 760 transitions, 11589 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:15,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:22:15,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:22:15,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:22:17,611 INFO L124 PetriNetUnfolderBase]: 1284/3959 cut-off events. [2024-11-28 03:22:17,612 INFO L125 PetriNetUnfolderBase]: For 50399/50687 co-relation queries the response was YES. [2024-11-28 03:22:17,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24882 conditions, 3959 events. 1284/3959 cut-off events. For 50399/50687 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 32904 event pairs, 170 based on Foata normal form. 151/4050 useless extension candidates. Maximal degree in co-relation 24546. Up to 1813 conditions per place. [2024-11-28 03:22:17,645 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 327 selfloop transitions, 333 changer transitions 13/837 dead transitions. [2024-11-28 03:22:17,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 837 transitions, 14277 flow [2024-11-28 03:22:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:22:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:22:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1874 transitions. [2024-11-28 03:22:17,650 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.831410825199645 [2024-11-28 03:22:17,650 INFO L175 Difference]: Start difference. First operand has 376 places, 760 transitions, 11589 flow. Second operand 14 states and 1874 transitions. [2024-11-28 03:22:17,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 837 transitions, 14277 flow [2024-11-28 03:22:17,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 837 transitions, 14073 flow, removed 35 selfloop flow, removed 6 redundant places. [2024-11-28 03:22:17,926 INFO L231 Difference]: Finished difference. Result has 390 places, 796 transitions, 13056 flow [2024-11-28 03:22:17,927 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=11406, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13056, PETRI_PLACES=390, PETRI_TRANSITIONS=796} [2024-11-28 03:22:17,927 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 230 predicate places. [2024-11-28 03:22:17,927 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 796 transitions, 13056 flow [2024-11-28 03:22:17,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:17,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:22:17,928 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] [2024-11-28 03:22:17,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:22:17,928 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:22:17,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:17,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1826914000, now seen corresponding path program 9 times [2024-11-28 03:22:17,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:17,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607615075] [2024-11-28 03:22:17,929 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:22:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:17,959 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:22:17,959 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:19,128 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:22:19,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:19,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607615075] [2024-11-28 03:22:19,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607615075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:19,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:19,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:22:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032350955] [2024-11-28 03:22:19,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:19,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:22:19,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:19,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:22:19,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:22:20,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-28 03:22:20,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 796 transitions, 13056 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:20,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:22:20,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-28 03:22:20,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:22:22,616 INFO L124 PetriNetUnfolderBase]: 1361/4048 cut-off events. [2024-11-28 03:22:22,616 INFO L125 PetriNetUnfolderBase]: For 54512/54804 co-relation queries the response was YES. [2024-11-28 03:22:22,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26275 conditions, 4048 events. 1361/4048 cut-off events. For 54512/54804 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 33271 event pairs, 139 based on Foata normal form. 131/4129 useless extension candidates. Maximal degree in co-relation 25933. Up to 1354 conditions per place. [2024-11-28 03:22:22,690 INFO L140 encePairwiseOnDemand]: 140/161 looper letters, 502 selfloop transitions, 280 changer transitions 24/962 dead transitions. [2024-11-28 03:22:22,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 962 transitions, 16726 flow [2024-11-28 03:22:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:22:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:22:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1519 transitions. [2024-11-28 03:22:22,694 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.857707509881423 [2024-11-28 03:22:22,694 INFO L175 Difference]: Start difference. First operand has 390 places, 796 transitions, 13056 flow. Second operand 11 states and 1519 transitions. [2024-11-28 03:22:22,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 962 transitions, 16726 flow [2024-11-28 03:22:23,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 962 transitions, 16328 flow, removed 97 selfloop flow, removed 4 redundant places. [2024-11-28 03:22:23,139 INFO L231 Difference]: Finished difference. Result has 401 places, 818 transitions, 13954 flow [2024-11-28 03:22:23,140 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=12670, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13954, PETRI_PLACES=401, PETRI_TRANSITIONS=818} [2024-11-28 03:22:23,140 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 241 predicate places. [2024-11-28 03:22:23,140 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 818 transitions, 13954 flow [2024-11-28 03:22:23,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:23,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:22:23,141 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] [2024-11-28 03:22:23,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:22:23,141 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:22:23,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1609783948, now seen corresponding path program 10 times [2024-11-28 03:22:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030598505] [2024-11-28 03:22:23,144 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:22:23,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:23,178 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:22:23,178 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:22:24,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:24,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030598505] [2024-11-28 03:22:24,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030598505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:24,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778436375] [2024-11-28 03:22:24,592 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:22:24,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:24,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:24,594 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:24,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:22:24,801 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:22:24,801 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:24,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 03:22:24,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:25,273 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 16 treesize of output 12 [2024-11-28 03:22:25,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:22:25,577 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 28 treesize of output 27 [2024-11-28 03:22:25,701 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-28 03:22:25,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-11-28 03:22:25,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 03:22:25,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 03:22:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:22:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:22:26,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:22:26,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:22:26,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:22:26,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-11-28 03:22:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:22:26,135 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:27,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 49 treesize of output 47 [2024-11-28 03:22:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:22:27,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778436375] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:27,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:22:27,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 25] total 45 [2024-11-28 03:22:27,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995953522] [2024-11-28 03:22:27,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:27,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:22:27,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:27,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:22:27,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1884, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:22:36,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-28 03:22:36,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 818 transitions, 13954 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:36,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:22:36,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-28 03:22:36,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:22:41,325 INFO L124 PetriNetUnfolderBase]: 1368/4207 cut-off events. [2024-11-28 03:22:41,325 INFO L125 PetriNetUnfolderBase]: For 64632/64974 co-relation queries the response was YES. [2024-11-28 03:22:41,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28190 conditions, 4207 events. 1368/4207 cut-off events. For 64632/64974 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 35362 event pairs, 143 based on Foata normal form. 128/4283 useless extension candidates. Maximal degree in co-relation 27845. Up to 1717 conditions per place. [2024-11-28 03:22:41,365 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 355 selfloop transitions, 443 changer transitions 10/968 dead transitions. [2024-11-28 03:22:41,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 968 transitions, 18369 flow [2024-11-28 03:22:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:22:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:22:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1876 transitions. [2024-11-28 03:22:41,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8322981366459627 [2024-11-28 03:22:41,369 INFO L175 Difference]: Start difference. First operand has 401 places, 818 transitions, 13954 flow. Second operand 14 states and 1876 transitions. [2024-11-28 03:22:41,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 968 transitions, 18369 flow [2024-11-28 03:22:41,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 968 transitions, 17738 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-11-28 03:22:41,804 INFO L231 Difference]: Finished difference. Result has 417 places, 884 transitions, 16230 flow [2024-11-28 03:22:41,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=13388, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16230, PETRI_PLACES=417, PETRI_TRANSITIONS=884} [2024-11-28 03:22:41,805 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 257 predicate places. [2024-11-28 03:22:41,805 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 884 transitions, 16230 flow [2024-11-28 03:22:41,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:41,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:22:41,806 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] [2024-11-28 03:22:41,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:22:42,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:42,007 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:22:42,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1592873246, now seen corresponding path program 11 times [2024-11-28 03:22:42,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:42,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130575521] [2024-11-28 03:22:42,009 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:22:42,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:42,044 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:22:42,044 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:22:42,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:42,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130575521] [2024-11-28 03:22:42,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130575521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:42,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:42,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:22:42,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258241795] [2024-11-28 03:22:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:42,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:22:42,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:42,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:22:42,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:22:44,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-28 03:22:44,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 884 transitions, 16230 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:44,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:22:44,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-28 03:22:44,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:22:46,437 INFO L124 PetriNetUnfolderBase]: 1450/4324 cut-off events. [2024-11-28 03:22:46,437 INFO L125 PetriNetUnfolderBase]: For 71823/72177 co-relation queries the response was YES. [2024-11-28 03:22:46,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30533 conditions, 4324 events. 1450/4324 cut-off events. For 71823/72177 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 36172 event pairs, 136 based on Foata normal form. 145/4418 useless extension candidates. Maximal degree in co-relation 30180. Up to 1506 conditions per place. [2024-11-28 03:22:46,488 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 566 selfloop transitions, 305 changer transitions 22/1049 dead transitions. [2024-11-28 03:22:46,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1049 transitions, 20284 flow [2024-11-28 03:22:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:22:46,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 03:22:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1639 transitions. [2024-11-28 03:22:46,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.848343685300207 [2024-11-28 03:22:46,491 INFO L175 Difference]: Start difference. First operand has 417 places, 884 transitions, 16230 flow. Second operand 12 states and 1639 transitions. [2024-11-28 03:22:46,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1049 transitions, 20284 flow [2024-11-28 03:22:46,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1049 transitions, 20063 flow, removed 89 selfloop flow, removed 2 redundant places. [2024-11-28 03:22:46,920 INFO L231 Difference]: Finished difference. Result has 431 places, 904 transitions, 17354 flow [2024-11-28 03:22:46,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=16017, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17354, PETRI_PLACES=431, PETRI_TRANSITIONS=904} [2024-11-28 03:22:46,921 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 271 predicate places. [2024-11-28 03:22:46,921 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 904 transitions, 17354 flow [2024-11-28 03:22:46,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:46,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:22:46,922 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] [2024-11-28 03:22:46,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:22:46,922 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:22:46,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1278085238, now seen corresponding path program 12 times [2024-11-28 03:22:46,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:46,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761758025] [2024-11-28 03:22:46,923 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:22:46,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:46,952 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 03:22:46,953 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:22:49,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:49,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761758025] [2024-11-28 03:22:49,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761758025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:49,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:49,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:22:49,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135851912] [2024-11-28 03:22:49,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:49,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:22:49,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:49,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:22:49,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:22:50,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:22:50,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 904 transitions, 17354 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:50,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:22:50,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:22:50,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:22:52,713 INFO L124 PetriNetUnfolderBase]: 1366/4194 cut-off events. [2024-11-28 03:22:52,713 INFO L125 PetriNetUnfolderBase]: For 77795/78180 co-relation queries the response was YES. [2024-11-28 03:22:52,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30384 conditions, 4194 events. 1366/4194 cut-off events. For 77795/78180 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35356 event pairs, 115 based on Foata normal form. 146/4280 useless extension candidates. Maximal degree in co-relation 30026. Up to 1366 conditions per place. [2024-11-28 03:22:52,756 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 579 selfloop transitions, 288 changer transitions 9/1042 dead transitions. [2024-11-28 03:22:52,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1042 transitions, 20968 flow [2024-11-28 03:22:52,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:22:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:22:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1513 transitions. [2024-11-28 03:22:52,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8543195934500283 [2024-11-28 03:22:52,759 INFO L175 Difference]: Start difference. First operand has 431 places, 904 transitions, 17354 flow. Second operand 11 states and 1513 transitions. [2024-11-28 03:22:52,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1042 transitions, 20968 flow [2024-11-28 03:22:53,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 1042 transitions, 20508 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-11-28 03:22:53,221 INFO L231 Difference]: Finished difference. Result has 438 places, 911 transitions, 17849 flow [2024-11-28 03:22:53,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=16899, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=281, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17849, PETRI_PLACES=438, PETRI_TRANSITIONS=911} [2024-11-28 03:22:53,222 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 278 predicate places. [2024-11-28 03:22:53,222 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 911 transitions, 17849 flow [2024-11-28 03:22:53,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:22:53,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:22:53,223 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] [2024-11-28 03:22:53,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:22:53,223 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:22:53,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:53,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1438884652, now seen corresponding path program 13 times [2024-11-28 03:22:53,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:53,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187503698] [2024-11-28 03:22:53,224 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:22:53,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:23:05,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:05,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187503698] [2024-11-28 03:23:05,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187503698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:05,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741300285] [2024-11-28 03:23:05,654 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:23:05,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:05,656 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:05,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:23:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:05,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 03:23:05,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:06,133 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 16 treesize of output 12 [2024-11-28 03:23:06,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:23:06,335 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 28 treesize of output 27 [2024-11-28 03:23:06,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 03:23:06,515 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-28 03:23:06,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-11-28 03:23:06,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 03:23:06,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:06,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:06,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:23:06,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-11-28 03:23:06,920 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:23:06,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:23:07,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741300285] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:07,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:23:07,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 23] total 45 [2024-11-28 03:23:07,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020240641] [2024-11-28 03:23:07,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:07,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:23:07,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:07,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:23:07,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:23:12,222 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-28 03:23:12,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 911 transitions, 17849 flow. Second operand has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:12,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:23:12,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-28 03:23:12,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:23:15,543 INFO L124 PetriNetUnfolderBase]: 1396/4278 cut-off events. [2024-11-28 03:23:15,544 INFO L125 PetriNetUnfolderBase]: For 81218/81593 co-relation queries the response was YES. [2024-11-28 03:23:15,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31028 conditions, 4278 events. 1396/4278 cut-off events. For 81218/81593 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 36028 event pairs, 58 based on Foata normal form. 158/4397 useless extension candidates. Maximal degree in co-relation 30667. Up to 1725 conditions per place. [2024-11-28 03:23:15,583 INFO L140 encePairwiseOnDemand]: 137/161 looper letters, 367 selfloop transitions, 458 changer transitions 15/993 dead transitions. [2024-11-28 03:23:15,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 993 transitions, 20735 flow [2024-11-28 03:23:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:23:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:23:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1755 transitions. [2024-11-28 03:23:15,585 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8385093167701864 [2024-11-28 03:23:15,585 INFO L175 Difference]: Start difference. First operand has 438 places, 911 transitions, 17849 flow. Second operand 13 states and 1755 transitions. [2024-11-28 03:23:15,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 993 transitions, 20735 flow [2024-11-28 03:23:16,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 993 transitions, 20329 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-11-28 03:23:16,127 INFO L231 Difference]: Finished difference. Result has 448 places, 924 transitions, 18803 flow [2024-11-28 03:23:16,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=17446, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=445, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18803, PETRI_PLACES=448, PETRI_TRANSITIONS=924} [2024-11-28 03:23:16,128 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 288 predicate places. [2024-11-28 03:23:16,129 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 924 transitions, 18803 flow [2024-11-28 03:23:16,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:16,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:23:16,130 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] [2024-11-28 03:23:16,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:23:16,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:23:16,331 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:23:16,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1043715076, now seen corresponding path program 14 times [2024-11-28 03:23:16,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:16,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337774607] [2024-11-28 03:23:16,332 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:23:16,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:16,348 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:23:16,348 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:16,892 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:23:16,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:16,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337774607] [2024-11-28 03:23:16,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337774607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:16,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:16,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:23:16,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086093711] [2024-11-28 03:23:16,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:16,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:23:16,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:16,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:23:16,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:23:18,259 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:23:18,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 924 transitions, 18803 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:18,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:23:18,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:23:18,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:23:20,114 INFO L124 PetriNetUnfolderBase]: 1359/4177 cut-off events. [2024-11-28 03:23:20,115 INFO L125 PetriNetUnfolderBase]: For 88233/88632 co-relation queries the response was YES. [2024-11-28 03:23:20,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31327 conditions, 4177 events. 1359/4177 cut-off events. For 88233/88632 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35198 event pairs, 179 based on Foata normal form. 230/4344 useless extension candidates. Maximal degree in co-relation 30963. Up to 1973 conditions per place. [2024-11-28 03:23:20,161 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 399 selfloop transitions, 391 changer transitions 9/965 dead transitions. [2024-11-28 03:23:20,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 965 transitions, 21069 flow [2024-11-28 03:23:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:23:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:23:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1495 transitions. [2024-11-28 03:23:20,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8441558441558441 [2024-11-28 03:23:20,164 INFO L175 Difference]: Start difference. First operand has 448 places, 924 transitions, 18803 flow. Second operand 11 states and 1495 transitions. [2024-11-28 03:23:20,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 965 transitions, 21069 flow [2024-11-28 03:23:20,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 965 transitions, 20698 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-11-28 03:23:20,822 INFO L231 Difference]: Finished difference. Result has 453 places, 927 transitions, 19333 flow [2024-11-28 03:23:20,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=388, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19333, PETRI_PLACES=453, PETRI_TRANSITIONS=927} [2024-11-28 03:23:20,823 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 293 predicate places. [2024-11-28 03:23:20,823 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 927 transitions, 19333 flow [2024-11-28 03:23:20,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:20,825 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:23:20,825 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] [2024-11-28 03:23:20,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:23:20,825 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:23:20,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:20,828 INFO L85 PathProgramCache]: Analyzing trace with hash -248605670, now seen corresponding path program 15 times [2024-11-28 03:23:20,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:20,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004534939] [2024-11-28 03:23:20,829 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:20,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:20,861 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:23:20,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:23:21,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:21,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004534939] [2024-11-28 03:23:21,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004534939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:21,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:21,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:23:21,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363082338] [2024-11-28 03:23:21,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:21,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:23:21,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:21,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:23:21,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:23:23,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:23:23,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 927 transitions, 19333 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:23,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:23:23,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:23:23,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:23:24,867 INFO L124 PetriNetUnfolderBase]: 1366/4218 cut-off events. [2024-11-28 03:23:24,867 INFO L125 PetriNetUnfolderBase]: For 94160/94529 co-relation queries the response was YES. [2024-11-28 03:23:24,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32027 conditions, 4218 events. 1366/4218 cut-off events. For 94160/94529 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 35709 event pairs, 180 based on Foata normal form. 136/4292 useless extension candidates. Maximal degree in co-relation 31665. Up to 1912 conditions per place. [2024-11-28 03:23:24,905 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 450 selfloop transitions, 376 changer transitions 9/1001 dead transitions. [2024-11-28 03:23:24,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 1001 transitions, 22566 flow [2024-11-28 03:23:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:23:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:23:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1356 transitions. [2024-11-28 03:23:24,907 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8422360248447205 [2024-11-28 03:23:24,907 INFO L175 Difference]: Start difference. First operand has 453 places, 927 transitions, 19333 flow. Second operand 10 states and 1356 transitions. [2024-11-28 03:23:24,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 1001 transitions, 22566 flow [2024-11-28 03:23:25,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1001 transitions, 22057 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-28 03:23:25,469 INFO L231 Difference]: Finished difference. Result has 464 places, 962 transitions, 20935 flow [2024-11-28 03:23:25,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=18856, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=927, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=343, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20935, PETRI_PLACES=464, PETRI_TRANSITIONS=962} [2024-11-28 03:23:25,470 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 304 predicate places. [2024-11-28 03:23:25,470 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 962 transitions, 20935 flow [2024-11-28 03:23:25,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:25,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:23:25,471 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] [2024-11-28 03:23:25,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:23:25,471 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:23:25,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:25,472 INFO L85 PathProgramCache]: Analyzing trace with hash 108608602, now seen corresponding path program 16 times [2024-11-28 03:23:25,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:25,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590807721] [2024-11-28 03:23:25,472 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:23:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:25,495 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:23:25,495 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:23:26,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:26,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590807721] [2024-11-28 03:23:26,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590807721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:26,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544656703] [2024-11-28 03:23:26,927 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:23:26,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:26,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:26,929 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:26,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:23:27,104 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:23:27,104 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:27,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 03:23:27,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:27,597 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 16 treesize of output 12 [2024-11-28 03:23:27,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:23:27,841 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 28 treesize of output 27 [2024-11-28 03:23:27,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 03:23:28,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 03:23:28,139 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-28 03:23:28,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-11-28 03:23:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:28,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:28,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:28,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:23:28,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:23:28,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-11-28 03:23:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:23:28,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:29,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 49 treesize of output 47 [2024-11-28 03:23:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:23:29,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544656703] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:29,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:23:29,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 25] total 45 [2024-11-28 03:23:29,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606547597] [2024-11-28 03:23:29,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:29,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:23:29,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:29,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:23:29,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1880, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:23:37,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-28 03:23:37,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 962 transitions, 20935 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:37,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:23:37,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-28 03:23:37,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:23:42,239 INFO L124 PetriNetUnfolderBase]: 1377/4262 cut-off events. [2024-11-28 03:23:42,239 INFO L125 PetriNetUnfolderBase]: For 100352/100724 co-relation queries the response was YES. [2024-11-28 03:23:42,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32920 conditions, 4262 events. 1377/4262 cut-off events. For 100352/100724 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 36174 event pairs, 134 based on Foata normal form. 142/4358 useless extension candidates. Maximal degree in co-relation 32553. Up to 1740 conditions per place. [2024-11-28 03:23:42,287 INFO L140 encePairwiseOnDemand]: 134/161 looper letters, 355 selfloop transitions, 514 changer transitions 14/1044 dead transitions. [2024-11-28 03:23:42,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1044 transitions, 24225 flow [2024-11-28 03:23:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:23:42,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:23:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2128 transitions. [2024-11-28 03:23:42,290 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2024-11-28 03:23:42,290 INFO L175 Difference]: Start difference. First operand has 464 places, 962 transitions, 20935 flow. Second operand 16 states and 2128 transitions. [2024-11-28 03:23:42,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1044 transitions, 24225 flow [2024-11-28 03:23:42,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1044 transitions, 23933 flow, removed 123 selfloop flow, removed 2 redundant places. [2024-11-28 03:23:42,903 INFO L231 Difference]: Finished difference. Result has 481 places, 974 transitions, 22177 flow [2024-11-28 03:23:42,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=20687, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=502, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22177, PETRI_PLACES=481, PETRI_TRANSITIONS=974} [2024-11-28 03:23:42,904 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 321 predicate places. [2024-11-28 03:23:42,904 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 974 transitions, 22177 flow [2024-11-28 03:23:42,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:42,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:23:42,905 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] [2024-11-28 03:23:42,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:23:43,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:43,106 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:23:43,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:43,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1066804320, now seen corresponding path program 17 times [2024-11-28 03:23:43,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:43,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338413037] [2024-11-28 03:23:43,107 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:23:43,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:43,130 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:23:43,131 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:23:43,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:43,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338413037] [2024-11-28 03:23:43,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338413037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:43,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:43,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:23:43,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338068899] [2024-11-28 03:23:43,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:43,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:23:43,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:43,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:23:43,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:23:45,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:23:45,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 974 transitions, 22177 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:45,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:23:45,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:23:45,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:23:47,347 INFO L124 PetriNetUnfolderBase]: 1370/4243 cut-off events. [2024-11-28 03:23:47,347 INFO L125 PetriNetUnfolderBase]: For 110568/110960 co-relation queries the response was YES. [2024-11-28 03:23:47,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33808 conditions, 4243 events. 1370/4243 cut-off events. For 110568/110960 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 36063 event pairs, 171 based on Foata normal form. 155/4335 useless extension candidates. Maximal degree in co-relation 33438. Up to 1922 conditions per place. [2024-11-28 03:23:47,386 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 424 selfloop transitions, 434 changer transitions 9/1033 dead transitions. [2024-11-28 03:23:47,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1033 transitions, 25227 flow [2024-11-28 03:23:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:23:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:23:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1873 transitions. [2024-11-28 03:23:47,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8309671694764863 [2024-11-28 03:23:47,389 INFO L175 Difference]: Start difference. First operand has 481 places, 974 transitions, 22177 flow. Second operand 14 states and 1873 transitions. [2024-11-28 03:23:47,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1033 transitions, 25227 flow [2024-11-28 03:23:47,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 1033 transitions, 24408 flow, removed 47 selfloop flow, removed 9 redundant places. [2024-11-28 03:23:47,994 INFO L231 Difference]: Finished difference. Result has 491 places, 1002 transitions, 23279 flow [2024-11-28 03:23:47,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=21393, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=407, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=23279, PETRI_PLACES=491, PETRI_TRANSITIONS=1002} [2024-11-28 03:23:47,996 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 331 predicate places. [2024-11-28 03:23:47,996 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 1002 transitions, 23279 flow [2024-11-28 03:23:47,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:47,996 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:23:47,996 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] [2024-11-28 03:23:47,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:23:47,996 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:23:47,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:47,998 INFO L85 PathProgramCache]: Analyzing trace with hash -922842554, now seen corresponding path program 18 times [2024-11-28 03:23:47,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:47,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106613825] [2024-11-28 03:23:47,998 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:23:47,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:48,026 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 03:23:48,026 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:23:48,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106613825] [2024-11-28 03:23:48,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106613825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:48,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:48,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:23:48,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340002048] [2024-11-28 03:23:48,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:48,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:23:48,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:48,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:23:48,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:23:50,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:23:50,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1002 transitions, 23279 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:50,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:23:50,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:23:50,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:23:52,295 INFO L124 PetriNetUnfolderBase]: 1379/4283 cut-off events. [2024-11-28 03:23:52,295 INFO L125 PetriNetUnfolderBase]: For 114125/114505 co-relation queries the response was YES. [2024-11-28 03:23:52,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34278 conditions, 4283 events. 1379/4283 cut-off events. For 114125/114505 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 36528 event pairs, 169 based on Foata normal form. 179/4399 useless extension candidates. Maximal degree in co-relation 33902. Up to 1981 conditions per place. [2024-11-28 03:23:52,343 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 466 selfloop transitions, 410 changer transitions 9/1051 dead transitions. [2024-11-28 03:23:52,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1051 transitions, 25978 flow [2024-11-28 03:23:52,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:23:52,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:23:52,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1361 transitions. [2024-11-28 03:23:52,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8453416149068324 [2024-11-28 03:23:52,345 INFO L175 Difference]: Start difference. First operand has 491 places, 1002 transitions, 23279 flow. Second operand 10 states and 1361 transitions. [2024-11-28 03:23:52,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 1051 transitions, 25978 flow [2024-11-28 03:23:53,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1051 transitions, 24943 flow, removed 140 selfloop flow, removed 9 redundant places. [2024-11-28 03:23:53,160 INFO L231 Difference]: Finished difference. Result has 495 places, 1015 transitions, 23536 flow [2024-11-28 03:23:53,161 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=22260, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1002, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23536, PETRI_PLACES=495, PETRI_TRANSITIONS=1015} [2024-11-28 03:23:53,162 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 335 predicate places. [2024-11-28 03:23:53,162 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 1015 transitions, 23536 flow [2024-11-28 03:23:53,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:53,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:23:53,162 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] [2024-11-28 03:23:53,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:23:53,163 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:23:53,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:53,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1112223526, now seen corresponding path program 19 times [2024-11-28 03:23:53,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:53,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734870219] [2024-11-28 03:23:53,166 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:23:53,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:03,172 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:24:03,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:03,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734870219] [2024-11-28 03:24:03,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734870219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:03,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59469918] [2024-11-28 03:24:03,173 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:24:03,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:03,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:03,174 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:03,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:24:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:03,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 03:24:03,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:03,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:24:04,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 03:24:04,078 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 25 treesize of output 24 [2024-11-28 03:24:04,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:24:04,370 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-28 03:24:04,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 21 treesize of output 13 [2024-11-28 03:24:04,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-11-28 03:24:04,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:04,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:24:04,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-11-28 03:24:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:24:04,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:24:05,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 49 treesize of output 47 [2024-11-28 03:24:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:24:05,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59469918] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:05,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:24:05,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 24] total 45 [2024-11-28 03:24:05,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434759470] [2024-11-28 03:24:05,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:05,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:24:05,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:05,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:24:05,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1838, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:24:09,039 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-28 03:24:09,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 1015 transitions, 23536 flow. Second operand has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:09,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:24:09,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-28 03:24:09,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:24:12,173 INFO L124 PetriNetUnfolderBase]: 1424/4388 cut-off events. [2024-11-28 03:24:12,173 INFO L125 PetriNetUnfolderBase]: For 114418/114781 co-relation queries the response was YES. [2024-11-28 03:24:12,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34936 conditions, 4388 events. 1424/4388 cut-off events. For 114418/114781 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37427 event pairs, 157 based on Foata normal form. 183/4519 useless extension candidates. Maximal degree in co-relation 34561. Up to 1890 conditions per place. [2024-11-28 03:24:12,218 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 359 selfloop transitions, 578 changer transitions 12/1102 dead transitions. [2024-11-28 03:24:12,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1102 transitions, 27148 flow [2024-11-28 03:24:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:24:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:24:12,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2122 transitions. [2024-11-28 03:24:12,221 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8237577639751553 [2024-11-28 03:24:12,221 INFO L175 Difference]: Start difference. First operand has 495 places, 1015 transitions, 23536 flow. Second operand 16 states and 2122 transitions. [2024-11-28 03:24:12,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1102 transitions, 27148 flow [2024-11-28 03:24:12,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 1102 transitions, 26392 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-28 03:24:12,878 INFO L231 Difference]: Finished difference. Result has 512 places, 1039 transitions, 25152 flow [2024-11-28 03:24:12,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=22794, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1015, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=554, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25152, PETRI_PLACES=512, PETRI_TRANSITIONS=1039} [2024-11-28 03:24:12,879 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 352 predicate places. [2024-11-28 03:24:12,879 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 1039 transitions, 25152 flow [2024-11-28 03:24:12,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:12,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:24:12,880 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] [2024-11-28 03:24:12,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:24:13,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 03:24:13,081 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:24:13,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:13,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1320217438, now seen corresponding path program 20 times [2024-11-28 03:24:13,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:13,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205340344] [2024-11-28 03:24:13,082 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:24:13,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:13,106 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:24:13,106 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:24:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:24:16,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:16,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205340344] [2024-11-28 03:24:16,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205340344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:16,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:16,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:24:16,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69546103] [2024-11-28 03:24:16,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:16,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:24:16,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:16,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:24:16,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:24:18,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 161 [2024-11-28 03:24:18,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 1039 transitions, 25152 flow. Second operand has 12 states, 12 states have (on average 124.75) internal successors, (1497), 12 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:18,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:24:18,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 161 [2024-11-28 03:24:18,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:24:21,396 INFO L124 PetriNetUnfolderBase]: 1470/4447 cut-off events. [2024-11-28 03:24:21,396 INFO L125 PetriNetUnfolderBase]: For 121118/121488 co-relation queries the response was YES. [2024-11-28 03:24:21,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36172 conditions, 4447 events. 1470/4447 cut-off events. For 121118/121488 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37744 event pairs, 211 based on Foata normal form. 237/4628 useless extension candidates. Maximal degree in co-relation 35790. Up to 2225 conditions per place. [2024-11-28 03:24:21,445 INFO L140 encePairwiseOnDemand]: 140/161 looper letters, 433 selfloop transitions, 490 changer transitions 18/1092 dead transitions. [2024-11-28 03:24:21,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 1092 transitions, 27929 flow [2024-11-28 03:24:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:24:21,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 03:24:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1986 transitions. [2024-11-28 03:24:21,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822360248447205 [2024-11-28 03:24:21,447 INFO L175 Difference]: Start difference. First operand has 512 places, 1039 transitions, 25152 flow. Second operand 15 states and 1986 transitions. [2024-11-28 03:24:21,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 1092 transitions, 27929 flow [2024-11-28 03:24:22,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 1092 transitions, 27403 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-11-28 03:24:22,200 INFO L231 Difference]: Finished difference. Result has 524 places, 1045 transitions, 25924 flow [2024-11-28 03:24:22,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=24631, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=484, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25924, PETRI_PLACES=524, PETRI_TRANSITIONS=1045} [2024-11-28 03:24:22,202 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 364 predicate places. [2024-11-28 03:24:22,202 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 1045 transitions, 25924 flow [2024-11-28 03:24:22,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 124.75) internal successors, (1497), 12 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:22,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:24:22,203 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] [2024-11-28 03:24:22,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:24:22,203 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:24:22,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash 822304874, now seen corresponding path program 1 times [2024-11-28 03:24:22,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:22,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832348426] [2024-11-28 03:24:22,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:24:49,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:49,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832348426] [2024-11-28 03:24:49,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832348426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:49,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830875285] [2024-11-28 03:24:49,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:49,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:49,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:49,048 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:49,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:24:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:49,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-28 03:24:49,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:50,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:24:50,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 03:24:50,487 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 25 treesize of output 24 [2024-11-28 03:24:50,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:24:50,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-11-28 03:24:50,828 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-28 03:24:50,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 21 treesize of output 13 [2024-11-28 03:24:50,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:50,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:50,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:50,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 55 [2024-11-28 03:24:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 55 [2024-11-28 03:24:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-11-28 03:24:51,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-11-28 03:24:51,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:24:51,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:24:51,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-11-28 03:25:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:25:07,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:25:11,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 73 treesize of output 71 [2024-11-28 03:25:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:25:11,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830875285] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:11,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:25:11,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [19, 31] total 61 [2024-11-28 03:25:11,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789728867] [2024-11-28 03:25:11,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:11,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:25:11,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:11,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:25:11,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3442, Unknown=4, NotChecked=0, Total=3782 [2024-11-28 03:25:45,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:25:45,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1045 transitions, 25924 flow. Second operand has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:45,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:25:45,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:25:45,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:25:59,567 INFO L124 PetriNetUnfolderBase]: 2124/7017 cut-off events. [2024-11-28 03:25:59,568 INFO L125 PetriNetUnfolderBase]: For 219492/220223 co-relation queries the response was YES. [2024-11-28 03:25:59,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56335 conditions, 7017 events. 2124/7017 cut-off events. For 219492/220223 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 69970 event pairs, 132 based on Foata normal form. 209/7186 useless extension candidates. Maximal degree in co-relation 55949. Up to 1792 conditions per place. [2024-11-28 03:25:59,645 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 853 selfloop transitions, 312 changer transitions 49/1482 dead transitions. [2024-11-28 03:25:59,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1482 transitions, 36954 flow [2024-11-28 03:25:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:25:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:25:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2840 transitions. [2024-11-28 03:25:59,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8399881691807157 [2024-11-28 03:25:59,649 INFO L175 Difference]: Start difference. First operand has 524 places, 1045 transitions, 25924 flow. Second operand 21 states and 2840 transitions. [2024-11-28 03:25:59,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 1482 transitions, 36954 flow [2024-11-28 03:26:00,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1482 transitions, 35755 flow, removed 31 selfloop flow, removed 9 redundant places. [2024-11-28 03:26:01,106 INFO L231 Difference]: Finished difference. Result has 544 places, 1186 transitions, 28931 flow [2024-11-28 03:26:01,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=24942, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=28931, PETRI_PLACES=544, PETRI_TRANSITIONS=1186} [2024-11-28 03:26:01,107 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 384 predicate places. [2024-11-28 03:26:01,107 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 1186 transitions, 28931 flow [2024-11-28 03:26:01,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:01,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:26:01,108 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] [2024-11-28 03:26:01,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:01,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:01,308 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:26:01,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:01,310 INFO L85 PathProgramCache]: Analyzing trace with hash -90737924, now seen corresponding path program 2 times [2024-11-28 03:26:01,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:01,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77009095] [2024-11-28 03:26:01,310 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:26:01,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:01,338 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:26:01,338 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:26:02,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:02,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77009095] [2024-11-28 03:26:02,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77009095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:02,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:02,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:26:02,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280844934] [2024-11-28 03:26:02,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:02,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:26:02,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:02,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:26:02,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:26:04,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-11-28 03:26:04,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 1186 transitions, 28931 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:04,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:26:04,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-11-28 03:26:04,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:26:07,338 INFO L124 PetriNetUnfolderBase]: 1960/6853 cut-off events. [2024-11-28 03:26:07,338 INFO L125 PetriNetUnfolderBase]: For 227581/228332 co-relation queries the response was YES. [2024-11-28 03:26:07,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55850 conditions, 6853 events. 1960/6853 cut-off events. For 227581/228332 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 70212 event pairs, 76 based on Foata normal form. 251/7074 useless extension candidates. Maximal degree in co-relation 55457. Up to 2307 conditions per place. [2024-11-28 03:26:07,683 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 529 selfloop transitions, 212 changer transitions 6/1293 dead transitions. [2024-11-28 03:26:07,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 1293 transitions, 33761 flow [2024-11-28 03:26:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:26:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:26:07,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1400 transitions. [2024-11-28 03:26:07,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8695652173913043 [2024-11-28 03:26:07,685 INFO L175 Difference]: Start difference. First operand has 544 places, 1186 transitions, 28931 flow. Second operand 10 states and 1400 transitions. [2024-11-28 03:26:07,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 1293 transitions, 33761 flow [2024-11-28 03:26:09,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 1293 transitions, 33377 flow, removed 174 selfloop flow, removed 2 redundant places. [2024-11-28 03:26:09,470 INFO L231 Difference]: Finished difference. Result has 554 places, 1250 transitions, 31920 flow [2024-11-28 03:26:09,471 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=28651, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1008, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31920, PETRI_PLACES=554, PETRI_TRANSITIONS=1250} [2024-11-28 03:26:09,471 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 394 predicate places. [2024-11-28 03:26:09,471 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 1250 transitions, 31920 flow [2024-11-28 03:26:09,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:09,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:26:09,472 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] [2024-11-28 03:26:09,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:26:09,472 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:26:09,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:09,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1780496292, now seen corresponding path program 3 times [2024-11-28 03:26:09,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:09,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271648400] [2024-11-28 03:26:09,475 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:26:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:09,499 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:26:09,499 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:26:11,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:11,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271648400] [2024-11-28 03:26:11,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271648400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:11,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:11,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:26:11,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322859842] [2024-11-28 03:26:11,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:11,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:26:11,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:11,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:26:11,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:26:12,997 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-11-28 03:26:12,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 1250 transitions, 31920 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:12,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:26:12,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-11-28 03:26:12,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:26:17,293 INFO L124 PetriNetUnfolderBase]: 2283/7789 cut-off events. [2024-11-28 03:26:17,293 INFO L125 PetriNetUnfolderBase]: For 265561/266484 co-relation queries the response was YES. [2024-11-28 03:26:17,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62255 conditions, 7789 events. 2283/7789 cut-off events. For 265561/266484 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 81034 event pairs, 97 based on Foata normal form. 292/8044 useless extension candidates. Maximal degree in co-relation 61858. Up to 1975 conditions per place. [2024-11-28 03:26:17,396 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 670 selfloop transitions, 315 changer transitions 9/1540 dead transitions. [2024-11-28 03:26:17,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 1540 transitions, 39108 flow [2024-11-28 03:26:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:26:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:26:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1563 transitions. [2024-11-28 03:26:17,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8825522303783173 [2024-11-28 03:26:17,398 INFO L175 Difference]: Start difference. First operand has 554 places, 1250 transitions, 31920 flow. Second operand 11 states and 1563 transitions. [2024-11-28 03:26:17,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 1540 transitions, 39108 flow [2024-11-28 03:26:19,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 1540 transitions, 38885 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-28 03:26:19,197 INFO L231 Difference]: Finished difference. Result has 566 places, 1359 transitions, 35949 flow [2024-11-28 03:26:19,198 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=31751, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1002, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=35949, PETRI_PLACES=566, PETRI_TRANSITIONS=1359} [2024-11-28 03:26:19,198 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 406 predicate places. [2024-11-28 03:26:19,198 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 1359 transitions, 35949 flow [2024-11-28 03:26:19,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:19,199 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:26:19,199 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] [2024-11-28 03:26:19,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:26:19,199 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:26:19,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:19,201 INFO L85 PathProgramCache]: Analyzing trace with hash 430544120, now seen corresponding path program 4 times [2024-11-28 03:26:19,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:19,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343142662] [2024-11-28 03:26:19,201 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:26:19,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:19,238 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:26:19,238 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:26:21,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:21,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343142662] [2024-11-28 03:26:21,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343142662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:21,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968533228] [2024-11-28 03:26:21,858 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:26:21,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:21,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:21,860 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:21,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:26:22,089 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:26:22,090 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:22,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-28 03:26:22,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:22,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:26:22,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 03:26:22,864 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 25 treesize of output 24 [2024-11-28 03:26:22,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:26:23,118 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-28 03:26:23,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 21 treesize of output 13 [2024-11-28 03:26:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2024-11-28 03:26:23,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2024-11-28 03:26:23,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2024-11-28 03:26:23,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2024-11-28 03:26:23,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:23,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2024-11-28 03:26:24,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:24,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:24,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:24,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:24,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-11-28 03:26:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:26:24,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:27,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 73 treesize of output 71 [2024-11-28 03:26:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:26:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968533228] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:27,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:26:27,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 27] total 52 [2024-11-28 03:26:27,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776379215] [2024-11-28 03:26:27,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:27,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:26:27,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:27,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:26:27,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2473, Unknown=0, NotChecked=0, Total=2756 [2024-11-28 03:26:46,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-28 03:26:46,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 1359 transitions, 35949 flow. Second operand has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:46,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:26:46,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-28 03:26:46,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:26:56,715 INFO L124 PetriNetUnfolderBase]: 2801/9100 cut-off events. [2024-11-28 03:26:56,715 INFO L125 PetriNetUnfolderBase]: For 340181/341332 co-relation queries the response was YES. [2024-11-28 03:26:56,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75647 conditions, 9100 events. 2801/9100 cut-off events. For 340181/341332 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 94902 event pairs, 161 based on Foata normal form. 448/9505 useless extension candidates. Maximal degree in co-relation 75244. Up to 2400 conditions per place. [2024-11-28 03:26:56,862 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 830 selfloop transitions, 610 changer transitions 18/1726 dead transitions. [2024-11-28 03:26:56,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1726 transitions, 48299 flow [2024-11-28 03:26:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:26:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 03:26:56,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2572 transitions. [2024-11-28 03:26:56,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8407976462896372 [2024-11-28 03:26:56,865 INFO L175 Difference]: Start difference. First operand has 566 places, 1359 transitions, 35949 flow. Second operand 19 states and 2572 transitions. [2024-11-28 03:26:56,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1726 transitions, 48299 flow [2024-11-28 03:26:59,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 1726 transitions, 47714 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-11-28 03:26:59,147 INFO L231 Difference]: Finished difference. Result has 596 places, 1544 transitions, 43646 flow [2024-11-28 03:26:59,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=35478, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=429, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=43646, PETRI_PLACES=596, PETRI_TRANSITIONS=1544} [2024-11-28 03:26:59,148 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 436 predicate places. [2024-11-28 03:26:59,148 INFO L471 AbstractCegarLoop]: Abstraction has has 596 places, 1544 transitions, 43646 flow [2024-11-28 03:26:59,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:59,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:26:59,149 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] [2024-11-28 03:26:59,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:59,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1a551e-b565-4ef0-8b3f-8d0b0c0f46fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 03:26:59,349 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:26:59,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:59,351 INFO L85 PathProgramCache]: Analyzing trace with hash -523346460, now seen corresponding path program 5 times [2024-11-28 03:26:59,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:59,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002459526] [2024-11-28 03:26:59,351 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:26:59,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:59,381 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:26:59,381 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:27:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:27:00,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:27:00,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002459526] [2024-11-28 03:27:00,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002459526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:27:00,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:27:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:27:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629849218] [2024-11-28 03:27:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:27:00,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:27:00,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:27:00,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:27:00,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:27:03,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 161 [2024-11-28 03:27:03,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1544 transitions, 43646 flow. Second operand has 11 states, 11 states have (on average 131.45454545454547) internal successors, (1446), 11 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:27:03,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:27:03,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 161 [2024-11-28 03:27:03,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:27:10,114 INFO L124 PetriNetUnfolderBase]: 2885/9596 cut-off events. [2024-11-28 03:27:10,115 INFO L125 PetriNetUnfolderBase]: For 419622/421248 co-relation queries the response was YES. [2024-11-28 03:27:10,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83135 conditions, 9596 events. 2885/9596 cut-off events. For 419622/421248 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 102736 event pairs, 154 based on Foata normal form. 605/10141 useless extension candidates. Maximal degree in co-relation 82719. Up to 3257 conditions per place. [2024-11-28 03:27:10,254 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 680 selfloop transitions, 600 changer transitions 12/1816 dead transitions. [2024-11-28 03:27:10,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1816 transitions, 54649 flow [2024-11-28 03:27:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:27:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:27:10,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2215 transitions. [2024-11-28 03:27:10,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.859860248447205 [2024-11-28 03:27:10,257 INFO L175 Difference]: Start difference. First operand has 596 places, 1544 transitions, 43646 flow. Second operand 16 states and 2215 transitions. [2024-11-28 03:27:10,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1816 transitions, 54649 flow [2024-11-28 03:27:12,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 1816 transitions, 54404 flow, removed 94 selfloop flow, removed 2 redundant places. [2024-11-28 03:27:12,991 INFO L231 Difference]: Finished difference. Result has 621 places, 1726 transitions, 52821 flow [2024-11-28 03:27:12,992 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=43457, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=438, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=52821, PETRI_PLACES=621, PETRI_TRANSITIONS=1726} [2024-11-28 03:27:12,992 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 461 predicate places. [2024-11-28 03:27:12,992 INFO L471 AbstractCegarLoop]: Abstraction has has 621 places, 1726 transitions, 52821 flow [2024-11-28 03:27:12,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.45454545454547) internal successors, (1446), 11 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:27:12,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:27:12,993 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] [2024-11-28 03:27:12,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:27:12,993 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:27:13,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1496528486, now seen corresponding path program 6 times [2024-11-28 03:27:13,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:27:13,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767952435] [2024-11-28 03:27:13,002 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:27:13,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:27:13,038 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 03:27:13,039 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:27:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 03:27:14,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:27:14,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767952435] [2024-11-28 03:27:14,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767952435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:27:14,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:27:14,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:27:14,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380084651] [2024-11-28 03:27:14,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:27:14,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:27:14,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:27:14,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:27:14,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:27:16,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-11-28 03:27:16,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1726 transitions, 52821 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:27:16,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:27:16,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-11-28 03:27:16,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:27:23,209 INFO L124 PetriNetUnfolderBase]: 2889/9800 cut-off events. [2024-11-28 03:27:23,209 INFO L125 PetriNetUnfolderBase]: For 516182/518027 co-relation queries the response was YES. [2024-11-28 03:27:23,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89123 conditions, 9800 events. 2889/9800 cut-off events. For 516182/518027 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 106477 event pairs, 118 based on Foata normal form. 719/10452 useless extension candidates. Maximal degree in co-relation 88695. Up to 3297 conditions per place. [2024-11-28 03:27:23,402 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 731 selfloop transitions, 638 changer transitions 7/1931 dead transitions. [2024-11-28 03:27:23,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1931 transitions, 63306 flow [2024-11-28 03:27:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:27:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 03:27:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2084 transitions. [2024-11-28 03:27:23,407 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8629399585921325 [2024-11-28 03:27:23,407 INFO L175 Difference]: Start difference. First operand has 621 places, 1726 transitions, 52821 flow. Second operand 15 states and 2084 transitions. [2024-11-28 03:27:23,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1931 transitions, 63306 flow [2024-11-28 03:27:27,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 1931 transitions, 63072 flow, removed 73 selfloop flow, removed 2 redundant places. [2024-11-28 03:27:27,154 INFO L231 Difference]: Finished difference. Result has 642 places, 1869 transitions, 61761 flow [2024-11-28 03:27:27,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=52622, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=507, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=61761, PETRI_PLACES=642, PETRI_TRANSITIONS=1869} [2024-11-28 03:27:27,155 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 482 predicate places. [2024-11-28 03:27:27,155 INFO L471 AbstractCegarLoop]: Abstraction has has 642 places, 1869 transitions, 61761 flow [2024-11-28 03:27:27,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:27:27,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:27:27,156 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] [2024-11-28 03:27:27,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:27:27,156 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:27:27,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:27,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1472051362, now seen corresponding path program 7 times [2024-11-28 03:27:27,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:27:27,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975112082] [2024-11-28 03:27:27,158 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:27:27,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:27:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat