./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.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_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e2d1ca14c91be6e836759580a015ed2d4b9eb8ea9888f9f925ea579405b630f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:17:40,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:17:40,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 23:17:40,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:17:40,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:17:40,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:17:40,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:17:40,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:17:40,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:17:40,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:17:40,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:17:40,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:17:40,464 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:17:40,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:17:40,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:17:40,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:17:40,467 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:17:40,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:17:40,467 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:17:40,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:17:40,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:17:40,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:17:40,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:17:40,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:17:40,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:17:40,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:17:40,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:17:40,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:17:40,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:17:40,470 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_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e2d1ca14c91be6e836759580a015ed2d4b9eb8ea9888f9f925ea579405b630f [2024-11-27 23:17:40,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:17:40,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:17:40,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:17:40,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:17:40,845 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:17:40,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-11-27 23:17:44,258 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/data/239c5f9c0/85574780990d4ec8a23edcbcf4a86706/FLAG54ae0a97b [2024-11-27 23:17:44,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:17:44,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-11-27 23:17:44,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/data/239c5f9c0/85574780990d4ec8a23edcbcf4a86706/FLAG54ae0a97b [2024-11-27 23:17:44,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/data/239c5f9c0/85574780990d4ec8a23edcbcf4a86706 [2024-11-27 23:17:44,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:17:44,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:17:44,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:17:44,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:17:44,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:17:44,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:17:44" (1/1) ... [2024-11-27 23:17:44,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8c2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:44, skipping insertion in model container [2024-11-27 23:17:44,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:17:44" (1/1) ... [2024-11-27 23:17:44,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:17:45,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:17:45,528 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:17:45,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:17:45,742 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:17:45,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45 WrapperNode [2024-11-27 23:17:45,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:17:45,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:17:45,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:17:45,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:17:45,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,820 INFO L138 Inliner]: procedures = 252, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-27 23:17:45,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:17:45,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:17:45,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:17:45,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:17:45,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,852 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:17:45,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:17:45,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:17:45,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:17:45,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (1/1) ... [2024-11-27 23:17:45,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:17:45,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:45,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:17:45,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd2437f-161f-403e-bb65-7e50a09a23de/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:17:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:17:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:17:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 23:17:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 23:17:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 23:17:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 23:17:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:17:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-27 23:17:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-27 23:17:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 23:17:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:17:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:17:45,949 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:17:46,162 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:17:46,164 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:17:46,641 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:17:46,642 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:17:46,698 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:17:46,699 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-27 23:17:46,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:17:46 BoogieIcfgContainer [2024-11-27 23:17:46,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:17:46,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:17:46,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:17:46,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:17:46,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:17:44" (1/3) ... [2024-11-27 23:17:46,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6965c094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:17:46, skipping insertion in model container [2024-11-27 23:17:46,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:45" (2/3) ... [2024-11-27 23:17:46,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6965c094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:17:46, skipping insertion in model container [2024-11-27 23:17:46,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:17:46" (3/3) ... [2024-11-27 23:17:46,716 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_28-funptr_racefree.i [2024-11-27 23:17:46,730 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:17:46,732 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_28-funptr_racefree.i that has 2 procedures, 158 locations, 1 initial locations, 6 loop locations, and 9 error locations. [2024-11-27 23:17:46,733 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:17:46,856 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 23:17:46,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 349 flow [2024-11-27 23:17:47,080 INFO L124 PetriNetUnfolderBase]: 19/240 cut-off events. [2024-11-27 23:17:47,083 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:17:47,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 240 events. 19/240 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 723 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 132. Up to 4 conditions per place. [2024-11-27 23:17:47,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 171 transitions, 349 flow [2024-11-27 23:17:47,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 349 flow [2024-11-27 23:17:47,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:17:47,135 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;@48700a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:17:47,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-27 23:17:47,164 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:17:47,164 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-27 23:17:47,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:17:47,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:47,165 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] [2024-11-27 23:17:47,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-27 23:17:47,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1176297438, now seen corresponding path program 1 times [2024-11-27 23:17:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830141214] [2024-11-27 23:17:47,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:47,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:47,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:47,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830141214] [2024-11-27 23:17:47,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830141214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:47,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:47,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:47,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749583620] [2024-11-27 23:17:47,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:47,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:47,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:47,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:47,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:47,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 171 [2024-11-27 23:17:47,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 171 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:47,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:17:47,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 171 [2024-11-27 23:17:47,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:17:48,038 INFO L124 PetriNetUnfolderBase]: 80/760 cut-off events. [2024-11-27 23:17:48,038 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-27 23:17:48,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 760 events. 80/760 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4134 event pairs, 72 based on Foata normal form. 77/757 useless extension candidates. Maximal degree in co-relation 872. Up to 174 conditions per place. [2024-11-27 23:17:48,049 INFO L140 encePairwiseOnDemand]: 156/171 looper letters, 28 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2024-11-27 23:17:48,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 165 transitions, 397 flow [2024-11-27 23:17:48,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:17:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-27 23:17:48,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8927875243664717 [2024-11-27 23:17:48,078 INFO L175 Difference]: Start difference. First operand has 161 places, 171 transitions, 349 flow. Second operand 3 states and 458 transitions. [2024-11-27 23:17:48,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 165 transitions, 397 flow [2024-11-27 23:17:48,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 165 transitions, 397 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:17:48,097 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 329 flow [2024-11-27 23:17:48,102 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-27 23:17:48,108 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 1 predicate places. [2024-11-27 23:17:48,110 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 329 flow [2024-11-27 23:17:48,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:48,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:48,111 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] [2024-11-27 23:17:48,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:17:48,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-27 23:17:48,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:48,114 INFO L85 PathProgramCache]: Analyzing trace with hash -876364880, now seen corresponding path program 1 times [2024-11-27 23:17:48,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:48,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893158030] [2024-11-27 23:17:48,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:48,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:49,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:49,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893158030] [2024-11-27 23:17:49,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893158030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:49,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:49,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:17:49,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462390341] [2024-11-27 23:17:49,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:49,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:17:49,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:49,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:17:49,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:17:49,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 171 [2024-11-27 23:17:49,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:49,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:17:49,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 171 [2024-11-27 23:17:49,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:17:49,692 INFO L124 PetriNetUnfolderBase]: 160/1001 cut-off events. [2024-11-27 23:17:49,692 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-27 23:17:49,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 1001 events. 160/1001 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6340 event pairs, 119 based on Foata normal form. 0/914 useless extension candidates. Maximal degree in co-relation 1302. Up to 267 conditions per place. [2024-11-27 23:17:49,703 INFO L140 encePairwiseOnDemand]: 165/171 looper letters, 60 selfloop transitions, 5 changer transitions 0/188 dead transitions. [2024-11-27 23:17:49,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 188 transitions, 521 flow [2024-11-27 23:17:49,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:17:49,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:17:49,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 810 transitions. [2024-11-27 23:17:49,712 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7894736842105263 [2024-11-27 23:17:49,712 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 329 flow. Second operand 6 states and 810 transitions. [2024-11-27 23:17:49,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 188 transitions, 521 flow [2024-11-27 23:17:49,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 188 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:17:49,719 INFO L231 Difference]: Finished difference. Result has 164 places, 156 transitions, 333 flow [2024-11-27 23:17:49,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=164, PETRI_TRANSITIONS=156} [2024-11-27 23:17:49,721 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 3 predicate places. [2024-11-27 23:17:49,721 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 156 transitions, 333 flow [2024-11-27 23:17:49,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:49,722 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:49,723 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] [2024-11-27 23:17:49,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:17:49,724 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-27 23:17:49,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1538965148, now seen corresponding path program 1 times [2024-11-27 23:17:49,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:49,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114412988] [2024-11-27 23:17:49,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:49,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:49,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:49,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114412988] [2024-11-27 23:17:49,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114412988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:49,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:49,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:49,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141431313] [2024-11-27 23:17:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:49,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:49,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:49,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:49,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:49,830 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 171 [2024-11-27 23:17:49,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 156 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:49,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:17:49,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 171 [2024-11-27 23:17:49,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:17:50,173 INFO L124 PetriNetUnfolderBase]: 114/1094 cut-off events. [2024-11-27 23:17:50,173 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-27 23:17:50,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1378 conditions, 1094 events. 114/1094 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7125 event pairs, 28 based on Foata normal form. 0/986 useless extension candidates. Maximal degree in co-relation 1308. Up to 133 conditions per place. [2024-11-27 23:17:50,182 INFO L140 encePairwiseOnDemand]: 167/171 looper letters, 33 selfloop transitions, 3 changer transitions 0/172 dead transitions. [2024-11-27 23:17:50,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 172 transitions, 440 flow [2024-11-27 23:17:50,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:50,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:17:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2024-11-27 23:17:50,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8791423001949318 [2024-11-27 23:17:50,187 INFO L175 Difference]: Start difference. First operand has 164 places, 156 transitions, 333 flow. Second operand 3 states and 451 transitions. [2024-11-27 23:17:50,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 172 transitions, 440 flow [2024-11-27 23:17:50,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 172 transitions, 430 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 23:17:50,196 INFO L231 Difference]: Finished difference. Result has 163 places, 158 transitions, 345 flow [2024-11-27 23:17:50,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=163, PETRI_TRANSITIONS=158} [2024-11-27 23:17:50,198 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 2 predicate places. [2024-11-27 23:17:50,198 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 158 transitions, 345 flow [2024-11-27 23:17:50,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:50,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:50,198 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] [2024-11-27 23:17:50,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:17:50,199 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-27 23:17:50,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:50,201 INFO L85 PathProgramCache]: Analyzing trace with hash -101391148, now seen corresponding path program 1 times [2024-11-27 23:17:50,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:50,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923877792] [2024-11-27 23:17:50,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:50,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:50,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:50,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923877792] [2024-11-27 23:17:50,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923877792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:50,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:50,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:17:50,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42857533] [2024-11-27 23:17:50,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:50,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:17:50,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:50,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:17:50,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:50,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 171 [2024-11-27 23:17:50,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 158 transitions, 345 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:50,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:17:50,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 171 [2024-11-27 23:17:50,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:17:50,590 INFO L124 PetriNetUnfolderBase]: 24/252 cut-off events. [2024-11-27 23:17:50,590 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-27 23:17:50,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 252 events. 24/252 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 570 event pairs, 0 based on Foata normal form. 9/249 useless extension candidates. Maximal degree in co-relation 280. Up to 17 conditions per place. [2024-11-27 23:17:50,592 INFO L140 encePairwiseOnDemand]: 166/171 looper letters, 34 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2024-11-27 23:17:50,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 125 transitions, 338 flow [2024-11-27 23:17:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:17:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:17:50,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 843 transitions. [2024-11-27 23:17:50,598 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8216374269005848 [2024-11-27 23:17:50,599 INFO L175 Difference]: Start difference. First operand has 163 places, 158 transitions, 345 flow. Second operand 6 states and 843 transitions. [2024-11-27 23:17:50,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 125 transitions, 338 flow [2024-11-27 23:17:50,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 125 transitions, 331 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-27 23:17:50,604 INFO L231 Difference]: Finished difference. Result has 110 places, 101 transitions, 215 flow [2024-11-27 23:17:50,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=110, PETRI_TRANSITIONS=101} [2024-11-27 23:17:50,605 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -51 predicate places. [2024-11-27 23:17:50,606 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 101 transitions, 215 flow [2024-11-27 23:17:50,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:50,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:50,608 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:50,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:17:50,609 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-27 23:17:50,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:50,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2140380538, now seen corresponding path program 1 times [2024-11-27 23:17:50,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:50,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742208474] [2024-11-27 23:17:50,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:50,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:17:50,659 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:17:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:17:50,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:17:50,745 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:17:50,747 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-27 23:17:50,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-27 23:17:50,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-27 23:17:50,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-27 23:17:50,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-27 23:17:50,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-27 23:17:50,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-27 23:17:50,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-27 23:17:50,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:17:50,755 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-27 23:17:50,759 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 23:17:50,761 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-27 23:17:50,822 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 23:17:50,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 233 transitions, 482 flow [2024-11-27 23:17:50,912 INFO L124 PetriNetUnfolderBase]: 34/399 cut-off events. [2024-11-27 23:17:50,912 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-27 23:17:50,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 399 events. 34/399 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1454 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 242. Up to 8 conditions per place. [2024-11-27 23:17:50,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 233 transitions, 482 flow [2024-11-27 23:17:50,922 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 218 places, 233 transitions, 482 flow [2024-11-27 23:17:50,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:17:50,929 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;@48700a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:17:50,929 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-27 23:17:50,938 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:17:50,940 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-27 23:17:50,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:17:50,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:50,941 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] [2024-11-27 23:17:50,941 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:17:50,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:50,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2073814389, now seen corresponding path program 1 times [2024-11-27 23:17:50,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:50,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770483261] [2024-11-27 23:17:50,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:50,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:51,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:51,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770483261] [2024-11-27 23:17:51,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770483261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:51,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:51,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:51,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018154919] [2024-11-27 23:17:51,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:51,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:51,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:51,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:51,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:51,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 233 [2024-11-27 23:17:51,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 233 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:51,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:17:51,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 233 [2024-11-27 23:17:51,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:17:52,991 INFO L124 PetriNetUnfolderBase]: 1626/8204 cut-off events. [2024-11-27 23:17:52,992 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-11-27 23:17:53,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10895 conditions, 8204 events. 1626/8204 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 86635 event pairs, 1608 based on Foata normal form. 1200/8606 useless extension candidates. Maximal degree in co-relation 9757. Up to 2629 conditions per place. [2024-11-27 23:17:53,056 INFO L140 encePairwiseOnDemand]: 212/233 looper letters, 39 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-11-27 23:17:53,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 222 transitions, 542 flow [2024-11-27 23:17:53,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:53,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:17:53,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2024-11-27 23:17:53,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.876967095851216 [2024-11-27 23:17:53,062 INFO L175 Difference]: Start difference. First operand has 218 places, 233 transitions, 482 flow. Second operand 3 states and 613 transitions. [2024-11-27 23:17:53,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 222 transitions, 542 flow [2024-11-27 23:17:53,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 222 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:17:53,075 INFO L231 Difference]: Finished difference. Result has 219 places, 214 transitions, 454 flow [2024-11-27 23:17:53,075 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=219, PETRI_TRANSITIONS=214} [2024-11-27 23:17:53,079 INFO L279 CegarLoopForPetriNet]: 218 programPoint places, 1 predicate places. [2024-11-27 23:17:53,079 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 214 transitions, 454 flow [2024-11-27 23:17:53,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:53,080 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:53,080 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] [2024-11-27 23:17:53,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:17:53,080 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:17:53,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash -101720839, now seen corresponding path program 1 times [2024-11-27 23:17:53,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:53,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565239229] [2024-11-27 23:17:53,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:53,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:53,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565239229] [2024-11-27 23:17:53,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565239229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:53,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:53,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:17:53,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60613186] [2024-11-27 23:17:53,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:53,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:17:53,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:53,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:17:53,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:17:53,903 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 233 [2024-11-27 23:17:53,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 214 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:53,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:17:53,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 233 [2024-11-27 23:17:53,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:17:56,627 INFO L124 PetriNetUnfolderBase]: 3186/12501 cut-off events. [2024-11-27 23:17:56,628 INFO L125 PetriNetUnfolderBase]: For 178/205 co-relation queries the response was YES. [2024-11-27 23:17:56,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17820 conditions, 12501 events. 3186/12501 cut-off events. For 178/205 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 137164 event pairs, 1571 based on Foata normal form. 0/11360 useless extension candidates. Maximal degree in co-relation 17660. Up to 3779 conditions per place. [2024-11-27 23:17:56,769 INFO L140 encePairwiseOnDemand]: 227/233 looper letters, 102 selfloop transitions, 6 changer transitions 0/277 dead transitions. [2024-11-27 23:17:56,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 277 transitions, 796 flow [2024-11-27 23:17:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:17:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:17:56,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1128 transitions. [2024-11-27 23:17:56,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8068669527896996 [2024-11-27 23:17:56,778 INFO L175 Difference]: Start difference. First operand has 219 places, 214 transitions, 454 flow. Second operand 6 states and 1128 transitions. [2024-11-27 23:17:56,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 277 transitions, 796 flow [2024-11-27 23:17:56,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 277 transitions, 794 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:17:56,793 INFO L231 Difference]: Finished difference. Result has 222 places, 213 transitions, 462 flow [2024-11-27 23:17:56,793 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=462, PETRI_PLACES=222, PETRI_TRANSITIONS=213} [2024-11-27 23:17:56,794 INFO L279 CegarLoopForPetriNet]: 218 programPoint places, 4 predicate places. [2024-11-27 23:17:56,795 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 213 transitions, 462 flow [2024-11-27 23:17:56,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:56,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:56,796 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] [2024-11-27 23:17:56,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:17:56,800 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:17:56,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash -261547528, now seen corresponding path program 1 times [2024-11-27 23:17:56,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:56,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139075614] [2024-11-27 23:17:56,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:56,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:56,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:56,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139075614] [2024-11-27 23:17:56,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139075614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:56,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:56,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267543787] [2024-11-27 23:17:56,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:56,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:56,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:56,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:56,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:56,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 233 [2024-11-27 23:17:56,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 213 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:56,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:17:56,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 233 [2024-11-27 23:17:56,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:17:59,774 INFO L124 PetriNetUnfolderBase]: 3293/15658 cut-off events. [2024-11-27 23:17:59,775 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-11-27 23:17:59,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21168 conditions, 15658 events. 3293/15658 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 186036 event pairs, 880 based on Foata normal form. 0/14062 useless extension candidates. Maximal degree in co-relation 19742. Up to 3072 conditions per place. [2024-11-27 23:17:59,872 INFO L140 encePairwiseOnDemand]: 226/233 looper letters, 58 selfloop transitions, 5 changer transitions 0/243 dead transitions. [2024-11-27 23:17:59,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 243 transitions, 659 flow [2024-11-27 23:17:59,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:17:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2024-11-27 23:17:59,875 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8698140200286123 [2024-11-27 23:17:59,875 INFO L175 Difference]: Start difference. First operand has 222 places, 213 transitions, 462 flow. Second operand 3 states and 608 transitions. [2024-11-27 23:17:59,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 243 transitions, 659 flow [2024-11-27 23:17:59,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 243 transitions, 647 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 23:17:59,881 INFO L231 Difference]: Finished difference. Result has 221 places, 218 transitions, 494 flow [2024-11-27 23:17:59,881 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=221, PETRI_TRANSITIONS=218} [2024-11-27 23:17:59,882 INFO L279 CegarLoopForPetriNet]: 218 programPoint places, 3 predicate places. [2024-11-27 23:17:59,882 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 218 transitions, 494 flow [2024-11-27 23:17:59,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:17:59,883 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:17:59,883 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] [2024-11-27 23:17:59,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:17:59,888 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:17:59,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:59,888 INFO L85 PathProgramCache]: Analyzing trace with hash 356915617, now seen corresponding path program 1 times [2024-11-27 23:17:59,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:59,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254384819] [2024-11-27 23:17:59,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:59,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:00,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:00,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254384819] [2024-11-27 23:18:00,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254384819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:00,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:00,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:18:00,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014431448] [2024-11-27 23:18:00,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:00,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:18:00,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:00,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:18:00,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:18:00,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 233 [2024-11-27 23:18:00,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 218 transitions, 494 flow. Second operand has 5 states, 5 states have (on average 181.8) internal successors, (909), 5 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:00,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:00,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 233 [2024-11-27 23:18:00,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:18:02,526 INFO L124 PetriNetUnfolderBase]: 3428/17853 cut-off events. [2024-11-27 23:18:02,526 INFO L125 PetriNetUnfolderBase]: For 422/430 co-relation queries the response was YES. [2024-11-27 23:18:02,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24284 conditions, 17853 events. 3428/17853 cut-off events. For 422/430 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 221965 event pairs, 893 based on Foata normal form. 9/16167 useless extension candidates. Maximal degree in co-relation 21227. Up to 5225 conditions per place. [2024-11-27 23:18:02,619 INFO L140 encePairwiseOnDemand]: 228/233 looper letters, 72 selfloop transitions, 5 changer transitions 0/260 dead transitions. [2024-11-27 23:18:02,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 260 transitions, 732 flow [2024-11-27 23:18:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:18:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:18:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1158 transitions. [2024-11-27 23:18:02,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8283261802575107 [2024-11-27 23:18:02,624 INFO L175 Difference]: Start difference. First operand has 221 places, 218 transitions, 494 flow. Second operand 6 states and 1158 transitions. [2024-11-27 23:18:02,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 260 transitions, 732 flow [2024-11-27 23:18:02,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 260 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:18:02,636 INFO L231 Difference]: Finished difference. Result has 227 places, 220 transitions, 510 flow [2024-11-27 23:18:02,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=510, PETRI_PLACES=227, PETRI_TRANSITIONS=220} [2024-11-27 23:18:02,638 INFO L279 CegarLoopForPetriNet]: 218 programPoint places, 9 predicate places. [2024-11-27 23:18:02,638 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 220 transitions, 510 flow [2024-11-27 23:18:02,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 181.8) internal successors, (909), 5 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:02,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:02,639 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] [2024-11-27 23:18:02,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:18:02,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:18:02,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:02,642 INFO L85 PathProgramCache]: Analyzing trace with hash 658746021, now seen corresponding path program 1 times [2024-11-27 23:18:02,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:02,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691205087] [2024-11-27 23:18:02,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:02,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:02,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:02,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691205087] [2024-11-27 23:18:02,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691205087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:02,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:02,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:18:02,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828875081] [2024-11-27 23:18:02,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:02,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:02,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:02,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:02,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:02,784 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 233 [2024-11-27 23:18:02,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 220 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:02,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:02,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 233 [2024-11-27 23:18:02,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:18:09,326 INFO L124 PetriNetUnfolderBase]: 12271/50191 cut-off events. [2024-11-27 23:18:09,326 INFO L125 PetriNetUnfolderBase]: For 533/533 co-relation queries the response was YES. [2024-11-27 23:18:09,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70934 conditions, 50191 events. 12271/50191 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 697461 event pairs, 5189 based on Foata normal form. 0/45471 useless extension candidates. Maximal degree in co-relation 70714. Up to 10701 conditions per place. [2024-11-27 23:18:09,543 INFO L140 encePairwiseOnDemand]: 214/233 looper letters, 70 selfloop transitions, 14 changer transitions 0/259 dead transitions. [2024-11-27 23:18:09,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 259 transitions, 767 flow [2024-11-27 23:18:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:09,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:18:09,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2024-11-27 23:18:09,546 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8526466380543634 [2024-11-27 23:18:09,546 INFO L175 Difference]: Start difference. First operand has 227 places, 220 transitions, 510 flow. Second operand 3 states and 596 transitions. [2024-11-27 23:18:09,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 259 transitions, 767 flow [2024-11-27 23:18:09,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 259 transitions, 761 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 23:18:09,556 INFO L231 Difference]: Finished difference. Result has 229 places, 234 transitions, 626 flow [2024-11-27 23:18:09,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=229, PETRI_TRANSITIONS=234} [2024-11-27 23:18:09,557 INFO L279 CegarLoopForPetriNet]: 218 programPoint places, 11 predicate places. [2024-11-27 23:18:09,558 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 234 transitions, 626 flow [2024-11-27 23:18:09,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:09,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:09,558 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] [2024-11-27 23:18:09,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:18:09,559 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:18:09,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:09,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1194580599, now seen corresponding path program 1 times [2024-11-27 23:18:09,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:09,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361557601] [2024-11-27 23:18:09,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:09,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:09,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:09,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361557601] [2024-11-27 23:18:09,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361557601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:09,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:09,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:18:09,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846918878] [2024-11-27 23:18:09,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:09,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:09,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:09,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:09,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:09,696 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 233 [2024-11-27 23:18:09,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 234 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:09,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:09,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 233 [2024-11-27 23:18:09,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:18:17,448 INFO L124 PetriNetUnfolderBase]: 13299/59840 cut-off events. [2024-11-27 23:18:17,448 INFO L125 PetriNetUnfolderBase]: For 12210/12688 co-relation queries the response was YES. [2024-11-27 23:18:17,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93561 conditions, 59840 events. 13299/59840 cut-off events. For 12210/12688 co-relation queries the response was YES. Maximal size of possible extension queue 1301. Compared 875983 event pairs, 9469 based on Foata normal form. 100/54845 useless extension candidates. Maximal degree in co-relation 93314. Up to 18899 conditions per place. [2024-11-27 23:18:17,726 INFO L140 encePairwiseOnDemand]: 224/233 looper letters, 64 selfloop transitions, 14 changer transitions 0/262 dead transitions. [2024-11-27 23:18:17,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 262 transitions, 876 flow [2024-11-27 23:18:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:17,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:18:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2024-11-27 23:18:17,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8354792560801144 [2024-11-27 23:18:17,729 INFO L175 Difference]: Start difference. First operand has 229 places, 234 transitions, 626 flow. Second operand 3 states and 584 transitions. [2024-11-27 23:18:17,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 262 transitions, 876 flow [2024-11-27 23:18:17,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 262 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:18:17,753 INFO L231 Difference]: Finished difference. Result has 231 places, 246 transitions, 724 flow [2024-11-27 23:18:17,754 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=231, PETRI_TRANSITIONS=246} [2024-11-27 23:18:17,754 INFO L279 CegarLoopForPetriNet]: 218 programPoint places, 13 predicate places. [2024-11-27 23:18:17,754 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 246 transitions, 724 flow [2024-11-27 23:18:17,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:17,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:17,755 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:17,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:18:17,756 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:18:17,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1472896918, now seen corresponding path program 1 times [2024-11-27 23:18:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:17,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895864117] [2024-11-27 23:18:17,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:17,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:17,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:17,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895864117] [2024-11-27 23:18:17,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895864117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:17,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:17,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:18:17,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908088096] [2024-11-27 23:18:17,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:17,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:17,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:17,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:17,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 233 [2024-11-27 23:18:17,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 246 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:17,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:17,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 233 [2024-11-27 23:18:17,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:18:24,650 INFO L124 PetriNetUnfolderBase]: 10584/57241 cut-off events. [2024-11-27 23:18:24,651 INFO L125 PetriNetUnfolderBase]: For 4691/5566 co-relation queries the response was YES. [2024-11-27 23:18:24,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82848 conditions, 57241 events. 10584/57241 cut-off events. For 4691/5566 co-relation queries the response was YES. Maximal size of possible extension queue 1280. Compared 868966 event pairs, 7187 based on Foata normal form. 33/51329 useless extension candidates. Maximal degree in co-relation 82646. Up to 13271 conditions per place. [2024-11-27 23:18:24,934 INFO L140 encePairwiseOnDemand]: 227/233 looper letters, 52 selfloop transitions, 8 changer transitions 0/268 dead transitions. [2024-11-27 23:18:24,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 268 transitions, 896 flow [2024-11-27 23:18:24,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:24,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:18:24,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2024-11-27 23:18:24,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8483547925608012 [2024-11-27 23:18:24,937 INFO L175 Difference]: Start difference. First operand has 231 places, 246 transitions, 724 flow. Second operand 3 states and 593 transitions. [2024-11-27 23:18:24,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 268 transitions, 896 flow [2024-11-27 23:18:24,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 868 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:18:24,987 INFO L231 Difference]: Finished difference. Result has 233 places, 252 transitions, 762 flow [2024-11-27 23:18:24,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=233, PETRI_TRANSITIONS=252} [2024-11-27 23:18:24,988 INFO L279 CegarLoopForPetriNet]: 218 programPoint places, 15 predicate places. [2024-11-27 23:18:24,988 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 252 transitions, 762 flow [2024-11-27 23:18:24,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:24,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:24,989 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:24,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:18:24,990 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-27 23:18:24,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:24,990 INFO L85 PathProgramCache]: Analyzing trace with hash 727720073, now seen corresponding path program 1 times [2024-11-27 23:18:24,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:24,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848986044] [2024-11-27 23:18:24,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:24,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:25,021 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:18:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:25,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:18:25,051 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:18:25,051 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-27 23:18:25,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-27 23:18:25,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-27 23:18:25,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-27 23:18:25,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:18:25,054 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:25,055 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 23:18:25,055 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-27 23:18:25,099 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-27 23:18:25,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 295 transitions, 617 flow [2024-11-27 23:18:25,193 INFO L124 PetriNetUnfolderBase]: 54/603 cut-off events. [2024-11-27 23:18:25,193 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-27 23:18:25,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 603 events. 54/603 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2491 event pairs, 1 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 407. Up to 16 conditions per place. [2024-11-27 23:18:25,199 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 295 transitions, 617 flow [2024-11-27 23:18:25,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 295 transitions, 617 flow [2024-11-27 23:18:25,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:18:25,207 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;@48700a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:18:25,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-27 23:18:25,210 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:18:25,210 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-27 23:18:25,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:18:25,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:25,211 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] [2024-11-27 23:18:25,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-27 23:18:25,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1569588686, now seen corresponding path program 1 times [2024-11-27 23:18:25,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:25,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597973182] [2024-11-27 23:18:25,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:25,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:25,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597973182] [2024-11-27 23:18:25,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597973182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:25,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:25,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:25,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073560660] [2024-11-27 23:18:25,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:25,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:25,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:25,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:25,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:25,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 295 [2024-11-27 23:18:25,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 295 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:25,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:25,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 295 [2024-11-27 23:18:25,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:18:38,465 INFO L124 PetriNetUnfolderBase]: 23207/84571 cut-off events. [2024-11-27 23:18:38,466 INFO L125 PetriNetUnfolderBase]: For 3577/3577 co-relation queries the response was YES. [2024-11-27 23:18:38,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117809 conditions, 84571 events. 23207/84571 cut-off events. For 3577/3577 co-relation queries the response was YES. Maximal size of possible extension queue 1547. Compared 1207124 event pairs, 23089 based on Foata normal form. 15261/92664 useless extension candidates. Maximal degree in co-relation 11668. Up to 32571 conditions per place. [2024-11-27 23:18:39,036 INFO L140 encePairwiseOnDemand]: 268/295 looper letters, 49 selfloop transitions, 2 changer transitions 0/278 dead transitions. [2024-11-27 23:18:39,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 278 transitions, 685 flow [2024-11-27 23:18:39,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:39,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:18:39,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2024-11-27 23:18:39,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2024-11-27 23:18:39,039 INFO L175 Difference]: Start difference. First operand has 275 places, 295 transitions, 617 flow. Second operand 3 states and 767 transitions. [2024-11-27 23:18:39,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 278 transitions, 685 flow [2024-11-27 23:18:39,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 278 transitions, 685 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:18:39,046 INFO L231 Difference]: Finished difference. Result has 276 places, 270 transitions, 577 flow [2024-11-27 23:18:39,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=276, PETRI_TRANSITIONS=270} [2024-11-27 23:18:39,048 INFO L279 CegarLoopForPetriNet]: 275 programPoint places, 1 predicate places. [2024-11-27 23:18:39,049 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 270 transitions, 577 flow [2024-11-27 23:18:39,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:39,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:39,050 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] [2024-11-27 23:18:39,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:18:39,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-27 23:18:39,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:39,050 INFO L85 PathProgramCache]: Analyzing trace with hash -872115264, now seen corresponding path program 1 times [2024-11-27 23:18:39,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:39,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521750552] [2024-11-27 23:18:39,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:39,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:39,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:39,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:39,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521750552] [2024-11-27 23:18:39,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521750552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:39,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:39,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:18:39,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735841187] [2024-11-27 23:18:39,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:39,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:18:39,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:39,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:18:39,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:18:39,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 295 [2024-11-27 23:18:39,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 270 transitions, 577 flow. Second operand has 6 states, 6 states have (on average 217.5) internal successors, (1305), 6 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:18:39,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:39,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 295 [2024-11-27 23:18:39,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand