./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.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_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:10:21,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:10:21,552 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 15:10:21,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:10:21,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:10:21,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:10:21,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:10:21,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:10:21,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:10:21,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:10:21,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:10:21,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:10:21,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:10:21,583 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:10:21,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:10:21,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:10:21,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:10:21,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:10:21,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:10:21,585 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_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2024-12-02 15:10:21,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:10:21,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:10:21,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:10:21,842 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:10:21,842 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:10:21,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2024-12-02 15:10:24,539 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/data/cfca876bb/a405bf0e44d240e2ae6a9211a97c7872/FLAGbb84c3fbf [2024-12-02 15:10:24,798 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:10:24,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2024-12-02 15:10:24,814 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/data/cfca876bb/a405bf0e44d240e2ae6a9211a97c7872/FLAGbb84c3fbf [2024-12-02 15:10:25,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/data/cfca876bb/a405bf0e44d240e2ae6a9211a97c7872 [2024-12-02 15:10:25,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:10:25,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:10:25,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:10:25,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:10:25,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:10:25,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44031d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25, skipping insertion in model container [2024-12-02 15:10:25,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,146 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:10:25,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:10:25,586 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:10:25,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:10:25,702 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:10:25,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25 WrapperNode [2024-12-02 15:10:25,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:10:25,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:10:25,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:10:25,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:10:25,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,754 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 289 [2024-12-02 15:10:25,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:10:25,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:10:25,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:10:25,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:10:25,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,784 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:10:25,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:10:25,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:10:25,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:10:25,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (1/1) ... [2024-12-02 15:10:25,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:10:25,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:10:25,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:10:25,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:10:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 15:10:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 15:10:25,857 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 15:10:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 15:10:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:10:25,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:10:25,858 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 15:10:26,002 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:10:26,004 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:10:26,509 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 15:10:26,509 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:10:26,535 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:10:26,535 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 15:10:26,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:10:26 BoogieIcfgContainer [2024-12-02 15:10:26,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:10:26,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:10:26,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:10:26,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:10:26,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:10:25" (1/3) ... [2024-12-02 15:10:26,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308b8b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:10:26, skipping insertion in model container [2024-12-02 15:10:26,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:25" (2/3) ... [2024-12-02 15:10:26,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308b8b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:10:26, skipping insertion in model container [2024-12-02 15:10:26,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:10:26" (3/3) ... [2024-12-02 15:10:26,544 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2024-12-02 15:10:26,560 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:10:26,561 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_16-arrayloop_rc.i that has 2 procedures, 319 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2024-12-02 15:10:26,561 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 15:10:26,651 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 15:10:26,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 324 transitions, 652 flow [2024-12-02 15:10:26,814 INFO L124 PetriNetUnfolderBase]: 6/323 cut-off events. [2024-12-02 15:10:26,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:10:26,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 323 events. 6/323 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 422 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2024-12-02 15:10:26,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 322 places, 324 transitions, 652 flow [2024-12-02 15:10:26,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 323 transitions, 649 flow [2024-12-02 15:10:26,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:10:26,852 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;@1bbd67a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:10:26,852 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-12-02 15:10:26,895 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:10:26,895 INFO L124 PetriNetUnfolderBase]: 3/125 cut-off events. [2024-12-02 15:10:26,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:10:26,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:26,896 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] [2024-12-02 15:10:26,897 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:26,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:26,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1554738074, now seen corresponding path program 1 times [2024-12-02 15:10:26,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:26,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750249412] [2024-12-02 15:10:26,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:26,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:27,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:27,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750249412] [2024-12-02 15:10:27,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750249412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:10:27,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:10:27,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:10:27,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083772274] [2024-12-02 15:10:27,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:10:27,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:10:27,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:27,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:10:27,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:10:28,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 324 [2024-12-02 15:10:28,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 323 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:28,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:28,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 324 [2024-12-02 15:10:28,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:29,881 INFO L124 PetriNetUnfolderBase]: 1265/4876 cut-off events. [2024-12-02 15:10:29,882 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:10:29,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7420 conditions, 4876 events. 1265/4876 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36076 event pairs, 912 based on Foata normal form. 139/4608 useless extension candidates. Maximal degree in co-relation 7280. Up to 2359 conditions per place. [2024-12-02 15:10:29,911 INFO L140 encePairwiseOnDemand]: 284/324 looper letters, 84 selfloop transitions, 107 changer transitions 0/428 dead transitions. [2024-12-02 15:10:29,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 428 transitions, 1241 flow [2024-12-02 15:10:29,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:10:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:10:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1628 transitions. [2024-12-02 15:10:29,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8374485596707819 [2024-12-02 15:10:29,931 INFO L175 Difference]: Start difference. First operand has 321 places, 323 transitions, 649 flow. Second operand 6 states and 1628 transitions. [2024-12-02 15:10:29,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 428 transitions, 1241 flow [2024-12-02 15:10:29,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 428 transitions, 1240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:10:29,947 INFO L231 Difference]: Finished difference. Result has 329 places, 420 transitions, 1330 flow [2024-12-02 15:10:29,993 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1330, PETRI_PLACES=329, PETRI_TRANSITIONS=420} [2024-12-02 15:10:29,996 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 8 predicate places. [2024-12-02 15:10:29,996 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 420 transitions, 1330 flow [2024-12-02 15:10:29,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:29,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:29,997 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] [2024-12-02 15:10:29,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:10:29,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:29,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:29,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1997734048, now seen corresponding path program 1 times [2024-12-02 15:10:29,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:29,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863191233] [2024-12-02 15:10:29,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:29,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:30,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:30,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863191233] [2024-12-02 15:10:30,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863191233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:10:30,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:10:30,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:10:30,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011589703] [2024-12-02 15:10:30,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:10:30,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:10:30,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:30,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:10:30,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:10:31,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 324 [2024-12-02 15:10:31,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 420 transitions, 1330 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:31,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:31,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 324 [2024-12-02 15:10:31,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:31,957 INFO L124 PetriNetUnfolderBase]: 1530/5757 cut-off events. [2024-12-02 15:10:31,957 INFO L125 PetriNetUnfolderBase]: For 1227/1227 co-relation queries the response was YES. [2024-12-02 15:10:31,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10557 conditions, 5757 events. 1530/5757 cut-off events. For 1227/1227 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 43909 event pairs, 936 based on Foata normal form. 0/5320 useless extension candidates. Maximal degree in co-relation 10404. Up to 2635 conditions per place. [2024-12-02 15:10:31,980 INFO L140 encePairwiseOnDemand]: 287/324 looper letters, 180 selfloop transitions, 107 changer transitions 0/528 dead transitions. [2024-12-02 15:10:31,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 528 transitions, 2312 flow [2024-12-02 15:10:31,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:10:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:10:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1621 transitions. [2024-12-02 15:10:31,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8338477366255144 [2024-12-02 15:10:31,983 INFO L175 Difference]: Start difference. First operand has 329 places, 420 transitions, 1330 flow. Second operand 6 states and 1621 transitions. [2024-12-02 15:10:31,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 528 transitions, 2312 flow [2024-12-02 15:10:31,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 528 transitions, 2312 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 15:10:32,002 INFO L231 Difference]: Finished difference. Result has 338 places, 520 transitions, 2210 flow [2024-12-02 15:10:32,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2210, PETRI_PLACES=338, PETRI_TRANSITIONS=520} [2024-12-02 15:10:32,003 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 17 predicate places. [2024-12-02 15:10:32,003 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 520 transitions, 2210 flow [2024-12-02 15:10:32,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:32,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:32,004 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] [2024-12-02 15:10:32,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:10:32,004 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:32,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash 590225147, now seen corresponding path program 1 times [2024-12-02 15:10:32,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:32,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811469322] [2024-12-02 15:10:32,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:32,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:32,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811469322] [2024-12-02 15:10:32,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811469322] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:10:32,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:10:32,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:10:32,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011813049] [2024-12-02 15:10:32,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:10:32,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:10:32,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:32,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:10:32,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:10:32,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 324 [2024-12-02 15:10:32,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 520 transitions, 2210 flow. Second operand has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:32,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:32,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 324 [2024-12-02 15:10:32,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:32,681 INFO L124 PetriNetUnfolderBase]: 1081/4426 cut-off events. [2024-12-02 15:10:32,681 INFO L125 PetriNetUnfolderBase]: For 1106/1112 co-relation queries the response was YES. [2024-12-02 15:10:32,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 4426 events. 1081/4426 cut-off events. For 1106/1112 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 28487 event pairs, 108 based on Foata normal form. 4/4184 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2024-12-02 15:10:32,696 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 16 selfloop transitions, 4 changer transitions 0/526 dead transitions. [2024-12-02 15:10:32,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 526 transitions, 2262 flow [2024-12-02 15:10:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:10:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:10:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2024-12-02 15:10:32,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.970164609053498 [2024-12-02 15:10:32,699 INFO L175 Difference]: Start difference. First operand has 338 places, 520 transitions, 2210 flow. Second operand 3 states and 943 transitions. [2024-12-02 15:10:32,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 526 transitions, 2262 flow [2024-12-02 15:10:32,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 526 transitions, 2070 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-12-02 15:10:32,711 INFO L231 Difference]: Finished difference. Result has 341 places, 522 transitions, 2042 flow [2024-12-02 15:10:32,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2018, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2042, PETRI_PLACES=341, PETRI_TRANSITIONS=522} [2024-12-02 15:10:32,711 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 20 predicate places. [2024-12-02 15:10:32,712 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 522 transitions, 2042 flow [2024-12-02 15:10:32,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:32,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:32,712 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:10:32,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:10:32,712 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:32,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:32,713 INFO L85 PathProgramCache]: Analyzing trace with hash -372341436, now seen corresponding path program 1 times [2024-12-02 15:10:32,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:32,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876185109] [2024-12-02 15:10:32,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:32,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:33,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:33,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876185109] [2024-12-02 15:10:33,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876185109] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:10:33,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:10:33,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:10:33,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972871603] [2024-12-02 15:10:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:10:33,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:10:33,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:33,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:10:33,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:10:33,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 324 [2024-12-02 15:10:33,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 522 transitions, 2042 flow. Second operand has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:33,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:33,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 324 [2024-12-02 15:10:33,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:35,274 INFO L124 PetriNetUnfolderBase]: 2970/10667 cut-off events. [2024-12-02 15:10:35,274 INFO L125 PetriNetUnfolderBase]: For 6059/6162 co-relation queries the response was YES. [2024-12-02 15:10:35,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23723 conditions, 10667 events. 2970/10667 cut-off events. For 6059/6162 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84445 event pairs, 1872 based on Foata normal form. 0/10135 useless extension candidates. Maximal degree in co-relation 23467. Up to 5591 conditions per place. [2024-12-02 15:10:35,310 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 285 selfloop transitions, 5 changer transitions 0/521 dead transitions. [2024-12-02 15:10:35,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 521 transitions, 2620 flow [2024-12-02 15:10:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:10:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:10:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1471 transitions. [2024-12-02 15:10:35,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7566872427983539 [2024-12-02 15:10:35,315 INFO L175 Difference]: Start difference. First operand has 341 places, 522 transitions, 2042 flow. Second operand 6 states and 1471 transitions. [2024-12-02 15:10:35,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 521 transitions, 2620 flow [2024-12-02 15:10:35,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 521 transitions, 2616 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:10:35,327 INFO L231 Difference]: Finished difference. Result has 344 places, 521 transitions, 2046 flow [2024-12-02 15:10:35,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2046, PETRI_PLACES=344, PETRI_TRANSITIONS=521} [2024-12-02 15:10:35,328 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 23 predicate places. [2024-12-02 15:10:35,328 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 521 transitions, 2046 flow [2024-12-02 15:10:35,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:35,329 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:35,329 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:10:35,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:10:35,329 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:35,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:35,329 INFO L85 PathProgramCache]: Analyzing trace with hash 133790432, now seen corresponding path program 1 times [2024-12-02 15:10:35,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:35,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151912292] [2024-12-02 15:10:35,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:35,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:35,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:35,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151912292] [2024-12-02 15:10:35,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151912292] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:10:35,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240412543] [2024-12-02 15:10:35,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:35,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:10:35,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:10:35,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:10:35,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:10:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:35,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:10:35,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:10:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:35,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:10:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:35,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240412543] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:10:35,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:10:35,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 15:10:35,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252532135] [2024-12-02 15:10:35,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:10:35,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:10:35,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:35,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:10:35,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:10:36,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-12-02 15:10:36,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 521 transitions, 2046 flow. Second operand has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:36,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:36,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-12-02 15:10:36,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:36,844 INFO L124 PetriNetUnfolderBase]: 1095/4581 cut-off events. [2024-12-02 15:10:36,844 INFO L125 PetriNetUnfolderBase]: For 683/689 co-relation queries the response was YES. [2024-12-02 15:10:36,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8884 conditions, 4581 events. 1095/4581 cut-off events. For 683/689 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 29233 event pairs, 106 based on Foata normal form. 2/4328 useless extension candidates. Maximal degree in co-relation 8588. Up to 922 conditions per place. [2024-12-02 15:10:36,869 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 22 selfloop transitions, 13 changer transitions 0/536 dead transitions. [2024-12-02 15:10:36,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 536 transitions, 2148 flow [2024-12-02 15:10:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:10:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 15:10:36,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2764 transitions. [2024-12-02 15:10:36,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9478737997256516 [2024-12-02 15:10:36,876 INFO L175 Difference]: Start difference. First operand has 344 places, 521 transitions, 2046 flow. Second operand 9 states and 2764 transitions. [2024-12-02 15:10:36,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 536 transitions, 2148 flow [2024-12-02 15:10:36,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 536 transitions, 2138 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 15:10:36,894 INFO L231 Difference]: Finished difference. Result has 350 places, 528 transitions, 2104 flow [2024-12-02 15:10:36,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2104, PETRI_PLACES=350, PETRI_TRANSITIONS=528} [2024-12-02 15:10:36,896 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 29 predicate places. [2024-12-02 15:10:36,896 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 528 transitions, 2104 flow [2024-12-02 15:10:36,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:36,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:36,898 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:10:36,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:10:37,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:10:37,099 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:37,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1019909824, now seen corresponding path program 2 times [2024-12-02 15:10:37,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:37,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343482199] [2024-12-02 15:10:37,101 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:10:37,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:37,158 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:10:37,158 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:10:37,485 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-12-02 15:10:37,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:37,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343482199] [2024-12-02 15:10:37,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343482199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:10:37,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:10:37,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:10:37,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884632451] [2024-12-02 15:10:37,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:10:37,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:10:37,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:37,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:10:37,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:10:37,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 324 [2024-12-02 15:10:37,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 528 transitions, 2104 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:37,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:37,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 324 [2024-12-02 15:10:37,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:40,827 INFO L124 PetriNetUnfolderBase]: 3572/12316 cut-off events. [2024-12-02 15:10:40,828 INFO L125 PetriNetUnfolderBase]: For 5305/5421 co-relation queries the response was YES. [2024-12-02 15:10:40,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26831 conditions, 12316 events. 3572/12316 cut-off events. For 5305/5421 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 97965 event pairs, 1616 based on Foata normal form. 0/11570 useless extension candidates. Maximal degree in co-relation 26497. Up to 6065 conditions per place. [2024-12-02 15:10:40,879 INFO L140 encePairwiseOnDemand]: 281/324 looper letters, 245 selfloop transitions, 170 changer transitions 0/697 dead transitions. [2024-12-02 15:10:40,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 697 transitions, 3412 flow [2024-12-02 15:10:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:10:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:10:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1684 transitions. [2024-12-02 15:10:40,884 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8662551440329218 [2024-12-02 15:10:40,884 INFO L175 Difference]: Start difference. First operand has 350 places, 528 transitions, 2104 flow. Second operand 6 states and 1684 transitions. [2024-12-02 15:10:40,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 697 transitions, 3412 flow [2024-12-02 15:10:40,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 697 transitions, 3402 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-12-02 15:10:40,910 INFO L231 Difference]: Finished difference. Result has 359 places, 689 transitions, 3344 flow [2024-12-02 15:10:40,911 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2094, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3344, PETRI_PLACES=359, PETRI_TRANSITIONS=689} [2024-12-02 15:10:40,912 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 38 predicate places. [2024-12-02 15:10:40,912 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 689 transitions, 3344 flow [2024-12-02 15:10:40,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:40,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:40,913 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:10:40,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:10:40,913 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:40,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:40,914 INFO L85 PathProgramCache]: Analyzing trace with hash 848160965, now seen corresponding path program 1 times [2024-12-02 15:10:40,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:40,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53328531] [2024-12-02 15:10:40,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:40,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:41,286 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:41,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:41,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53328531] [2024-12-02 15:10:41,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53328531] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:10:41,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85916863] [2024-12-02 15:10:41,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:41,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:10:41,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:10:41,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:10:41,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:10:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:41,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 15:10:41,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:10:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:41,717 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:10:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:41,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85916863] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:10:41,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:10:41,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-12-02 15:10:41,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824691233] [2024-12-02 15:10:41,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:10:41,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 15:10:41,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:41,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 15:10:41,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:10:42,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-12-02 15:10:42,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 689 transitions, 3344 flow. Second operand has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:42,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:42,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-12-02 15:10:42,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:44,041 INFO L124 PetriNetUnfolderBase]: 1777/6922 cut-off events. [2024-12-02 15:10:44,041 INFO L125 PetriNetUnfolderBase]: For 3171/3270 co-relation queries the response was YES. [2024-12-02 15:10:44,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16029 conditions, 6922 events. 1777/6922 cut-off events. For 3171/3270 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 47983 event pairs, 163 based on Foata normal form. 4/6622 useless extension candidates. Maximal degree in co-relation 15428. Up to 1393 conditions per place. [2024-12-02 15:10:44,066 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 26 selfloop transitions, 25 changer transitions 0/713 dead transitions. [2024-12-02 15:10:44,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 713 transitions, 3546 flow [2024-12-02 15:10:44,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:10:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 15:10:44,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6418 transitions. [2024-12-02 15:10:44,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9432686654908877 [2024-12-02 15:10:44,078 INFO L175 Difference]: Start difference. First operand has 359 places, 689 transitions, 3344 flow. Second operand 21 states and 6418 transitions. [2024-12-02 15:10:44,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 713 transitions, 3546 flow [2024-12-02 15:10:44,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 713 transitions, 3510 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-12-02 15:10:44,129 INFO L231 Difference]: Finished difference. Result has 384 places, 702 transitions, 3452 flow [2024-12-02 15:10:44,129 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=3308, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3452, PETRI_PLACES=384, PETRI_TRANSITIONS=702} [2024-12-02 15:10:44,130 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 63 predicate places. [2024-12-02 15:10:44,130 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 702 transitions, 3452 flow [2024-12-02 15:10:44,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:44,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:44,134 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:10:44,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:10:44,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:10:44,334 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:44,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1733198459, now seen corresponding path program 2 times [2024-12-02 15:10:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:44,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169937149] [2024-12-02 15:10:44,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:10:44,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:44,406 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:10:44,406 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:10:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-12-02 15:10:44,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:44,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169937149] [2024-12-02 15:10:44,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169937149] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:10:44,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:10:44,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:10:44,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546608790] [2024-12-02 15:10:44,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:10:44,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:10:44,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:44,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:10:44,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:10:45,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 324 [2024-12-02 15:10:45,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 702 transitions, 3452 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:45,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:45,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 324 [2024-12-02 15:10:45,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:49,002 INFO L124 PetriNetUnfolderBase]: 4262/14691 cut-off events. [2024-12-02 15:10:49,002 INFO L125 PetriNetUnfolderBase]: For 10658/10876 co-relation queries the response was YES. [2024-12-02 15:10:49,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37001 conditions, 14691 events. 4262/14691 cut-off events. For 10658/10876 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 118936 event pairs, 1676 based on Foata normal form. 0/13895 useless extension candidates. Maximal degree in co-relation 36307. Up to 6898 conditions per place. [2024-12-02 15:10:49,074 INFO L140 encePairwiseOnDemand]: 281/324 looper letters, 395 selfloop transitions, 170 changer transitions 0/871 dead transitions. [2024-12-02 15:10:49,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 871 transitions, 5360 flow [2024-12-02 15:10:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:10:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:10:49,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1684 transitions. [2024-12-02 15:10:49,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8662551440329218 [2024-12-02 15:10:49,078 INFO L175 Difference]: Start difference. First operand has 384 places, 702 transitions, 3452 flow. Second operand 6 states and 1684 transitions. [2024-12-02 15:10:49,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 871 transitions, 5360 flow [2024-12-02 15:10:49,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 871 transitions, 5334 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-12-02 15:10:49,122 INFO L231 Difference]: Finished difference. Result has 388 places, 863 transitions, 4976 flow [2024-12-02 15:10:49,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4976, PETRI_PLACES=388, PETRI_TRANSITIONS=863} [2024-12-02 15:10:49,123 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 67 predicate places. [2024-12-02 15:10:49,124 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 863 transitions, 4976 flow [2024-12-02 15:10:49,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:49,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:49,124 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:10:49,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:10:49,124 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:49,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:49,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1402317739, now seen corresponding path program 1 times [2024-12-02 15:10:49,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:49,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946984938] [2024-12-02 15:10:49,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:49,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:50,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:50,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946984938] [2024-12-02 15:10:50,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946984938] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:10:50,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842966212] [2024-12-02 15:10:50,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:10:50,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:10:50,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:10:50,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:10:50,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:10:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:10:50,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 15:10:50,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:10:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:50,901 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:10:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:10:51,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842966212] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:10:51,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:10:51,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-12-02 15:10:51,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422233503] [2024-12-02 15:10:51,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:10:51,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 15:10:51,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:51,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 15:10:51,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-12-02 15:10:51,661 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-12-02 15:10:51,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 863 transitions, 4976 flow. Second operand has 23 states, 23 states have (on average 305.2173913043478) internal successors, (7020), 23 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:51,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:51,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-12-02 15:10:51,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:10:54,229 INFO L124 PetriNetUnfolderBase]: 2478/9371 cut-off events. [2024-12-02 15:10:54,229 INFO L125 PetriNetUnfolderBase]: For 7424/7570 co-relation queries the response was YES. [2024-12-02 15:10:54,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24561 conditions, 9371 events. 2478/9371 cut-off events. For 7424/7570 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 68646 event pairs, 229 based on Foata normal form. 3/9001 useless extension candidates. Maximal degree in co-relation 23697. Up to 2112 conditions per place. [2024-12-02 15:10:54,268 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 29 selfloop transitions, 34 changer transitions 0/886 dead transitions. [2024-12-02 15:10:54,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 886 transitions, 5236 flow [2024-12-02 15:10:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 15:10:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-12-02 15:10:54,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9156 transitions. [2024-12-02 15:10:54,275 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9419753086419753 [2024-12-02 15:10:54,275 INFO L175 Difference]: Start difference. First operand has 388 places, 863 transitions, 4976 flow. Second operand 30 states and 9156 transitions. [2024-12-02 15:10:54,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 886 transitions, 5236 flow [2024-12-02 15:10:54,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 886 transitions, 4900 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-12-02 15:10:54,326 INFO L231 Difference]: Finished difference. Result has 421 places, 873 transitions, 4806 flow [2024-12-02 15:10:54,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=4640, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=863, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4806, PETRI_PLACES=421, PETRI_TRANSITIONS=873} [2024-12-02 15:10:54,327 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 100 predicate places. [2024-12-02 15:10:54,327 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 873 transitions, 4806 flow [2024-12-02 15:10:54,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 305.2173913043478) internal successors, (7020), 23 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:54,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:10:54,328 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:10:54,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:10:54,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:10:54,529 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:10:54,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:10:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash 328341154, now seen corresponding path program 2 times [2024-12-02 15:10:54,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:10:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424144993] [2024-12-02 15:10:54,530 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:10:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:10:54,596 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:10:54,596 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:10:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:10:54,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:10:54,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424144993] [2024-12-02 15:10:54,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424144993] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:10:54,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:10:54,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:10:54,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298364801] [2024-12-02 15:10:54,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:10:54,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:10:54,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:54,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:10:54,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:10:55,817 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:10:55,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 873 transitions, 4806 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:10:55,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:55,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:10:55,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:11:02,043 INFO L124 PetriNetUnfolderBase]: 4958/16109 cut-off events. [2024-12-02 15:11:02,043 INFO L125 PetriNetUnfolderBase]: For 16981/17099 co-relation queries the response was YES. [2024-12-02 15:11:02,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46850 conditions, 16109 events. 4958/16109 cut-off events. For 16981/17099 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 128485 event pairs, 1551 based on Foata normal form. 32/15472 useless extension candidates. Maximal degree in co-relation 45814. Up to 4580 conditions per place. [2024-12-02 15:11:02,123 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 589 selfloop transitions, 184 changer transitions 0/1077 dead transitions. [2024-12-02 15:11:02,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 1077 transitions, 7550 flow [2024-12-02 15:11:02,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:11:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 15:11:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3165 transitions. [2024-12-02 15:11:02,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8140432098765432 [2024-12-02 15:11:02,128 INFO L175 Difference]: Start difference. First operand has 421 places, 873 transitions, 4806 flow. Second operand 12 states and 3165 transitions. [2024-12-02 15:11:02,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 1077 transitions, 7550 flow [2024-12-02 15:11:02,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 1077 transitions, 7502 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-12-02 15:11:02,199 INFO L231 Difference]: Finished difference. Result has 419 places, 892 transitions, 5516 flow [2024-12-02 15:11:02,200 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=4758, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5516, PETRI_PLACES=419, PETRI_TRANSITIONS=892} [2024-12-02 15:11:02,201 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 98 predicate places. [2024-12-02 15:11:02,201 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 892 transitions, 5516 flow [2024-12-02 15:11:02,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:02,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:11:02,202 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:11:02,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:11:02,203 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:11:02,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:11:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash -139104578, now seen corresponding path program 3 times [2024-12-02 15:11:02,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:11:02,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713827151] [2024-12-02 15:11:02,205 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:11:02,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:11:02,276 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:11:02,276 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:11:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:11:02,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:11:02,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713827151] [2024-12-02 15:11:02,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713827151] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:11:02,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:11:02,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:11:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043532819] [2024-12-02 15:11:02,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:11:02,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:11:02,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:11:02,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:11:02,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:11:03,720 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:11:03,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 892 transitions, 5516 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:03,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:11:03,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:11:03,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:11:10,078 INFO L124 PetriNetUnfolderBase]: 5667/18287 cut-off events. [2024-12-02 15:11:10,078 INFO L125 PetriNetUnfolderBase]: For 25237/25694 co-relation queries the response was YES. [2024-12-02 15:11:10,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57895 conditions, 18287 events. 5667/18287 cut-off events. For 25237/25694 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 149958 event pairs, 1736 based on Foata normal form. 97/17652 useless extension candidates. Maximal degree in co-relation 56876. Up to 5373 conditions per place. [2024-12-02 15:11:10,205 INFO L140 encePairwiseOnDemand]: 269/324 looper letters, 831 selfloop transitions, 162 changer transitions 0/1297 dead transitions. [2024-12-02 15:11:10,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1297 transitions, 10824 flow [2024-12-02 15:11:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 15:11:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-12-02 15:11:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5592 transitions. [2024-12-02 15:11:10,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.750402576489533 [2024-12-02 15:11:10,212 INFO L175 Difference]: Start difference. First operand has 419 places, 892 transitions, 5516 flow. Second operand 23 states and 5592 transitions. [2024-12-02 15:11:10,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1297 transitions, 10824 flow [2024-12-02 15:11:10,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1297 transitions, 10586 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-12-02 15:11:10,344 INFO L231 Difference]: Finished difference. Result has 452 places, 1033 transitions, 7342 flow [2024-12-02 15:11:10,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=5376, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=772, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7342, PETRI_PLACES=452, PETRI_TRANSITIONS=1033} [2024-12-02 15:11:10,346 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 131 predicate places. [2024-12-02 15:11:10,346 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 1033 transitions, 7342 flow [2024-12-02 15:11:10,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:10,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:11:10,347 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:11:10,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:11:10,347 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:11:10,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:11:10,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1781891196, now seen corresponding path program 4 times [2024-12-02 15:11:10,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:11:10,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934697641] [2024-12-02 15:11:10,349 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:11:10,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:11:10,508 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:11:10,508 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:11:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:11:12,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:11:12,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934697641] [2024-12-02 15:11:12,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934697641] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:11:12,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:11:12,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:11:12,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245092159] [2024-12-02 15:11:12,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:11:12,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:11:12,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:11:12,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:11:12,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:11:12,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:11:12,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 1033 transitions, 7342 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:12,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:11:12,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:11:12,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:11:20,190 INFO L124 PetriNetUnfolderBase]: 5852/18389 cut-off events. [2024-12-02 15:11:20,190 INFO L125 PetriNetUnfolderBase]: For 34231/34437 co-relation queries the response was YES. [2024-12-02 15:11:20,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63334 conditions, 18389 events. 5852/18389 cut-off events. For 34231/34437 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 149405 event pairs, 1553 based on Foata normal form. 72/17786 useless extension candidates. Maximal degree in co-relation 62238. Up to 4624 conditions per place. [2024-12-02 15:11:20,336 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 659 selfloop transitions, 288 changer transitions 0/1251 dead transitions. [2024-12-02 15:11:20,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 1251 transitions, 10853 flow [2024-12-02 15:11:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:11:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 15:11:20,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3398 transitions. [2024-12-02 15:11:20,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8067426400759734 [2024-12-02 15:11:20,340 INFO L175 Difference]: Start difference. First operand has 452 places, 1033 transitions, 7342 flow. Second operand 13 states and 3398 transitions. [2024-12-02 15:11:20,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 1251 transitions, 10853 flow [2024-12-02 15:11:20,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 1251 transitions, 10801 flow, removed 26 selfloop flow, removed 0 redundant places. [2024-12-02 15:11:20,611 INFO L231 Difference]: Finished difference. Result has 471 places, 1062 transitions, 8725 flow [2024-12-02 15:11:20,611 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=7298, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=754, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8725, PETRI_PLACES=471, PETRI_TRANSITIONS=1062} [2024-12-02 15:11:20,612 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 150 predicate places. [2024-12-02 15:11:20,612 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 1062 transitions, 8725 flow [2024-12-02 15:11:20,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:20,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:11:20,613 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:11:20,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:11:20,613 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:11:20,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:11:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1900658100, now seen corresponding path program 5 times [2024-12-02 15:11:20,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:11:20,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208903260] [2024-12-02 15:11:20,615 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:11:20,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:11:21,202 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:11:21,202 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:11:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:11:23,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:11:23,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208903260] [2024-12-02 15:11:23,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208903260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:11:23,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:11:23,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:11:23,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761963237] [2024-12-02 15:11:23,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:11:23,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:11:23,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:11:23,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:11:23,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:11:23,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:11:23,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 1062 transitions, 8725 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:23,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:11:23,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:11:23,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:11:31,429 INFO L124 PetriNetUnfolderBase]: 6591/20670 cut-off events. [2024-12-02 15:11:31,429 INFO L125 PetriNetUnfolderBase]: For 56655/57420 co-relation queries the response was YES. [2024-12-02 15:11:31,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77409 conditions, 20670 events. 6591/20670 cut-off events. For 56655/57420 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 172824 event pairs, 2097 based on Foata normal form. 155/20048 useless extension candidates. Maximal degree in co-relation 76305. Up to 9465 conditions per place. [2024-12-02 15:11:31,602 INFO L140 encePairwiseOnDemand]: 271/324 looper letters, 849 selfloop transitions, 209 changer transitions 0/1362 dead transitions. [2024-12-02 15:11:31,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 1362 transitions, 14121 flow [2024-12-02 15:11:31,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 15:11:31,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-12-02 15:11:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4847 transitions. [2024-12-02 15:11:31,606 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7479938271604938 [2024-12-02 15:11:31,606 INFO L175 Difference]: Start difference. First operand has 471 places, 1062 transitions, 8725 flow. Second operand 20 states and 4847 transitions. [2024-12-02 15:11:31,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 1362 transitions, 14121 flow [2024-12-02 15:11:31,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1362 transitions, 13809 flow, removed 26 selfloop flow, removed 6 redundant places. [2024-12-02 15:11:31,996 INFO L231 Difference]: Finished difference. Result has 499 places, 1174 transitions, 10961 flow [2024-12-02 15:11:31,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=8512, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=881, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10961, PETRI_PLACES=499, PETRI_TRANSITIONS=1174} [2024-12-02 15:11:31,997 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 178 predicate places. [2024-12-02 15:11:31,997 INFO L471 AbstractCegarLoop]: Abstraction has has 499 places, 1174 transitions, 10961 flow [2024-12-02 15:11:31,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:31,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:11:31,999 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:11:31,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:11:31,999 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:11:32,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:11:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1246700792, now seen corresponding path program 6 times [2024-12-02 15:11:32,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:11:32,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249402606] [2024-12-02 15:11:32,001 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 15:11:32,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:11:32,066 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 15:11:32,066 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:11:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:11:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:11:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249402606] [2024-12-02 15:11:32,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249402606] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:11:32,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:11:32,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:11:32,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463331079] [2024-12-02 15:11:32,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:11:32,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:11:32,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:11:32,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:11:32,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:11:33,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:11:33,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 1174 transitions, 10961 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:33,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:11:33,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:11:33,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:11:42,780 INFO L124 PetriNetUnfolderBase]: 7393/22552 cut-off events. [2024-12-02 15:11:42,780 INFO L125 PetriNetUnfolderBase]: For 85449/86299 co-relation queries the response was YES. [2024-12-02 15:11:42,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91541 conditions, 22552 events. 7393/22552 cut-off events. For 85449/86299 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 191493 event pairs, 2041 based on Foata normal form. 152/21937 useless extension candidates. Maximal degree in co-relation 90383. Up to 10315 conditions per place. [2024-12-02 15:11:43,010 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 960 selfloop transitions, 206 changer transitions 0/1470 dead transitions. [2024-12-02 15:11:43,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1470 transitions, 16561 flow [2024-12-02 15:11:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:11:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 15:11:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3475 transitions. [2024-12-02 15:11:43,013 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7660934744268078 [2024-12-02 15:11:43,013 INFO L175 Difference]: Start difference. First operand has 499 places, 1174 transitions, 10961 flow. Second operand 14 states and 3475 transitions. [2024-12-02 15:11:43,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1470 transitions, 16561 flow [2024-12-02 15:11:43,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 1470 transitions, 16297 flow, removed 132 selfloop flow, removed 0 redundant places. [2024-12-02 15:11:43,829 INFO L231 Difference]: Finished difference. Result has 524 places, 1263 transitions, 13029 flow [2024-12-02 15:11:43,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=10709, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=983, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13029, PETRI_PLACES=524, PETRI_TRANSITIONS=1263} [2024-12-02 15:11:43,830 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 203 predicate places. [2024-12-02 15:11:43,830 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 1263 transitions, 13029 flow [2024-12-02 15:11:43,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:43,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:11:43,831 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:11:43,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:11:43,831 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:11:43,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:11:43,833 INFO L85 PathProgramCache]: Analyzing trace with hash 54968308, now seen corresponding path program 7 times [2024-12-02 15:11:43,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:11:43,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819302322] [2024-12-02 15:11:43,833 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:11:43,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:11:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:11:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:11:45,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:11:45,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819302322] [2024-12-02 15:11:45,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819302322] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:11:45,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:11:45,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:11:45,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054035347] [2024-12-02 15:11:45,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:11:45,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:11:45,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:11:45,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:11:45,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:11:46,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:11:46,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1263 transitions, 13029 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:46,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:11:46,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:11:46,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:11:57,143 INFO L124 PetriNetUnfolderBase]: 8530/25143 cut-off events. [2024-12-02 15:11:57,144 INFO L125 PetriNetUnfolderBase]: For 125019/125629 co-relation queries the response was YES. [2024-12-02 15:11:57,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110750 conditions, 25143 events. 8530/25143 cut-off events. For 125019/125629 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 217409 event pairs, 1664 based on Foata normal form. 222/24678 useless extension candidates. Maximal degree in co-relation 110334. Up to 6292 conditions per place. [2024-12-02 15:11:57,388 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 1145 selfloop transitions, 269 changer transitions 0/1718 dead transitions. [2024-12-02 15:11:57,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1718 transitions, 21097 flow [2024-12-02 15:11:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:11:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 15:11:57,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5181 transitions. [2024-12-02 15:11:57,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7614638447971781 [2024-12-02 15:11:57,392 INFO L175 Difference]: Start difference. First operand has 524 places, 1263 transitions, 13029 flow. Second operand 21 states and 5181 transitions. [2024-12-02 15:11:57,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 1718 transitions, 21097 flow [2024-12-02 15:11:58,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 1718 transitions, 20769 flow, removed 164 selfloop flow, removed 0 redundant places. [2024-12-02 15:11:58,551 INFO L231 Difference]: Finished difference. Result has 562 places, 1373 transitions, 15906 flow [2024-12-02 15:11:58,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=12743, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1022, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=15906, PETRI_PLACES=562, PETRI_TRANSITIONS=1373} [2024-12-02 15:11:58,552 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 241 predicate places. [2024-12-02 15:11:58,552 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 1373 transitions, 15906 flow [2024-12-02 15:11:58,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:11:58,553 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:11:58,553 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:11:58,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:11:58,553 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:11:58,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:11:58,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1986326956, now seen corresponding path program 8 times [2024-12-02 15:11:58,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:11:58,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098102626] [2024-12-02 15:11:58,557 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:11:58,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:11:58,626 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:11:58,626 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:11:58,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:11:58,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:11:58,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098102626] [2024-12-02 15:11:58,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098102626] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:11:58,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:11:58,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:11:58,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170958751] [2024-12-02 15:11:58,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:11:58,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:11:58,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:11:58,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:11:58,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:12:00,039 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:12:00,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 1373 transitions, 15906 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:12:00,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:12:00,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:12:00,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:12:12,264 INFO L124 PetriNetUnfolderBase]: 8658/25455 cut-off events. [2024-12-02 15:12:12,264 INFO L125 PetriNetUnfolderBase]: For 157776/158406 co-relation queries the response was YES. [2024-12-02 15:12:12,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118938 conditions, 25455 events. 8658/25455 cut-off events. For 157776/158406 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 220739 event pairs, 1653 based on Foata normal form. 236/24998 useless extension candidates. Maximal degree in co-relation 118491. Up to 6698 conditions per place. [2024-12-02 15:12:12,560 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 856 selfloop transitions, 469 changer transitions 0/1629 dead transitions. [2024-12-02 15:12:12,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1629 transitions, 21331 flow [2024-12-02 15:12:12,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 15:12:12,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-02 15:12:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3866 transitions. [2024-12-02 15:12:12,563 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7954732510288066 [2024-12-02 15:12:12,563 INFO L175 Difference]: Start difference. First operand has 562 places, 1373 transitions, 15906 flow. Second operand 15 states and 3866 transitions. [2024-12-02 15:12:12,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1629 transitions, 21331 flow [2024-12-02 15:12:14,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 1629 transitions, 20712 flow, removed 291 selfloop flow, removed 3 redundant places. [2024-12-02 15:12:14,303 INFO L231 Difference]: Finished difference. Result has 579 places, 1414 transitions, 18012 flow [2024-12-02 15:12:14,304 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=15401, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=910, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18012, PETRI_PLACES=579, PETRI_TRANSITIONS=1414} [2024-12-02 15:12:14,304 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 258 predicate places. [2024-12-02 15:12:14,304 INFO L471 AbstractCegarLoop]: Abstraction has has 579 places, 1414 transitions, 18012 flow [2024-12-02 15:12:14,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:12:14,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:12:14,304 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:14,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:12:14,305 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:12:14,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:14,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1778862638, now seen corresponding path program 9 times [2024-12-02 15:12:14,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:14,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251925442] [2024-12-02 15:12:14,307 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:12:14,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:14,369 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:12:14,369 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:12:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:12:14,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:14,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251925442] [2024-12-02 15:12:14,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251925442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:14,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:14,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:12:14,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300532148] [2024-12-02 15:12:14,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:14,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:12:14,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:14,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:12:14,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:12:15,540 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-12-02 15:12:15,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 1414 transitions, 18012 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:12:15,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:12:15,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-12-02 15:12:15,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:12:27,679 INFO L124 PetriNetUnfolderBase]: 9082/26569 cut-off events. [2024-12-02 15:12:27,680 INFO L125 PetriNetUnfolderBase]: For 201756/202496 co-relation queries the response was YES. [2024-12-02 15:12:27,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131586 conditions, 26569 events. 9082/26569 cut-off events. For 201756/202496 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 232660 event pairs, 1697 based on Foata normal form. 296/26176 useless extension candidates. Maximal degree in co-relation 131115. Up to 8024 conditions per place. [2024-12-02 15:12:28,031 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 1124 selfloop transitions, 316 changer transitions 0/1744 dead transitions. [2024-12-02 15:12:28,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 1744 transitions, 25311 flow [2024-12-02 15:12:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 15:12:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 15:12:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4470 transitions. [2024-12-02 15:12:28,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7664609053497943 [2024-12-02 15:12:28,034 INFO L175 Difference]: Start difference. First operand has 579 places, 1414 transitions, 18012 flow. Second operand 18 states and 4470 transitions. [2024-12-02 15:12:28,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 596 places, 1744 transitions, 25311 flow [2024-12-02 15:12:30,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 1744 transitions, 24960 flow, removed 54 selfloop flow, removed 6 redundant places. [2024-12-02 15:12:30,132 INFO L231 Difference]: Finished difference. Result has 601 places, 1504 transitions, 21045 flow [2024-12-02 15:12:30,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=17679, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=21045, PETRI_PLACES=601, PETRI_TRANSITIONS=1504} [2024-12-02 15:12:30,133 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 280 predicate places. [2024-12-02 15:12:30,133 INFO L471 AbstractCegarLoop]: Abstraction has has 601 places, 1504 transitions, 21045 flow [2024-12-02 15:12:30,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:12:30,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:12:30,134 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:30,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 15:12:30,134 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:12:30,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:30,139 INFO L85 PathProgramCache]: Analyzing trace with hash 315232986, now seen corresponding path program 10 times [2024-12-02 15:12:30,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:30,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836939892] [2024-12-02 15:12:30,139 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:12:30,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:30,234 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:12:30,235 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:12:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:12:31,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:31,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836939892] [2024-12-02 15:12:31,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836939892] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:12:31,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162939769] [2024-12-02 15:12:31,423 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:12:31,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:31,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:31,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:12:31,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:12:31,921 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:12:31,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:12:31,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 1709 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 15:12:31,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:31,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-12-02 15:12:31,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 15:12:31,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 15:12:32,028 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 15:12:32,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-12-02 15:12:32,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:32,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 15:12:32,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:32,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 15:12:32,121 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 43 treesize of output 32 [2024-12-02 15:12:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:12:32,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:12:32,157 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) |c_t_funThread1of1ForFork0_new_~p~0#1.offset|) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)) (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 2)) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)) (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 3)) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)) (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 1)) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|))) is different from false [2024-12-02 15:12:32,206 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| (store (select |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base|) .cse1 |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)))) (and (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) .cse1) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)) (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 1)) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)) (forall ((v_ArrVal_6704 (Array Int Int))) (= |c_t_funThread1of1ForFork0_new_#t~nondet31#1| (select (select (store .cse0 |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) |c_t_funThread1of1ForFork0_new_~p~0#1.offset|))) (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_new_~p~0#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 2)) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|))))) is different from false [2024-12-02 15:12:32,306 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 2)) (.cse1 (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| (store (store (select |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base|) .cse2 |c_t_funThread1of1ForFork0_new_#t~nondet31#1|) .cse1 |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)))) (and (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_new_#t~malloc30#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) .cse1) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)) (forall ((v_ArrVal_6704 (Array Int Int))) (= |c_t_funThread1of1ForFork0_new_#t~nondet31#1| (select (select (store .cse0 |c_ULTIMATE.start_new_#t~malloc30#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) .cse2))) (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_new_#t~malloc30#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) |c_t_funThread1of1ForFork0_new_~p~0#1.offset|) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|)) (forall ((v_ArrVal_6704 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_new_#t~malloc30#1.base| v_ArrVal_6704) |c_t_funThread1of1ForFork0_new_~p~0#1.base|) (+ |c_t_funThread1of1ForFork0_new_~p~0#1.offset| 1)) |c_t_funThread1of1ForFork0_new_#t~nondet31#1|))))) is different from false [2024-12-02 15:12:32,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:32,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 49 [2024-12-02 15:12:32,553 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:32,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 30 [2024-12-02 15:12:32,564 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 15:12:32,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 15:12:32,570 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 15:12:32,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 15:12:32,578 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 15:12:32,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 15:12:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:12:39,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162939769] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:12:39,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:12:39,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2024-12-02 15:12:39,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276662082] [2024-12-02 15:12:39,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:12:39,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 15:12:39,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:39,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 15:12:39,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=12, NotChecked=90, Total=342 [2024-12-02 15:12:40,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 324 [2024-12-02 15:12:40,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 1504 transitions, 21045 flow. Second operand has 19 states, 19 states have (on average 182.1578947368421) internal successors, (3461), 19 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:12:40,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:12:40,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 324 [2024-12-02 15:12:40,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:13:02,331 INFO L124 PetriNetUnfolderBase]: 15291/37593 cut-off events. [2024-12-02 15:13:02,331 INFO L125 PetriNetUnfolderBase]: For 367732/367748 co-relation queries the response was YES. [2024-12-02 15:13:02,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197760 conditions, 37593 events. 15291/37593 cut-off events. For 367732/367748 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 317779 event pairs, 4008 based on Foata normal form. 66/36107 useless extension candidates. Maximal degree in co-relation 197148. Up to 16125 conditions per place. [2024-12-02 15:13:02,897 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 1227 selfloop transitions, 540 changer transitions 0/1980 dead transitions. [2024-12-02 15:13:02,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 1980 transitions, 29288 flow [2024-12-02 15:13:02,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 15:13:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-12-02 15:13:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3466 transitions. [2024-12-02 15:13:02,900 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6685956790123457 [2024-12-02 15:13:02,900 INFO L175 Difference]: Start difference. First operand has 601 places, 1504 transitions, 21045 flow. Second operand 16 states and 3466 transitions. [2024-12-02 15:13:02,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 1980 transitions, 29288 flow [2024-12-02 15:13:06,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 1980 transitions, 28821 flow, removed 208 selfloop flow, removed 4 redundant places. [2024-12-02 15:13:06,639 INFO L231 Difference]: Finished difference. Result has 622 places, 1580 transitions, 24322 flow [2024-12-02 15:13:06,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=20590, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=469, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=981, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24322, PETRI_PLACES=622, PETRI_TRANSITIONS=1580} [2024-12-02 15:13:06,640 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 301 predicate places. [2024-12-02 15:13:06,640 INFO L471 AbstractCegarLoop]: Abstraction has has 622 places, 1580 transitions, 24322 flow [2024-12-02 15:13:06,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 182.1578947368421) internal successors, (3461), 19 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:13:06,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:13:06,642 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:06,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 15:13:06,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 15:13:06,842 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 15:13:06,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:06,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1834326490, now seen corresponding path program 11 times [2024-12-02 15:13:06,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:13:06,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93996795] [2024-12-02 15:13:06,845 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:13:06,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:13:07,125 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:13:07,125 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:13:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-12-02 15:13:08,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:13:08,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93996795] [2024-12-02 15:13:08,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93996795] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:13:08,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418072872] [2024-12-02 15:13:08,548 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:13:08,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:13:08,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:13:08,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:13:08,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e357c3-ca8d-4915-a53d-1c2d06a752d8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process