./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU --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 cc2bc8e2b738274330116922d0213f314e2f92c105156edd0131038d71009ecb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:08,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:09,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:18:09,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:09,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:09,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:09,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:09,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:09,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:09,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:09,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:09,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:09,109 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:09,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:09,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:09,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:09,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:09,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:09,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:09,115 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:09,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:09,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:09,120 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:18:09,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:09,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:18:09,121 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:09,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:09,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:09,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:09,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:09,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:09,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:09,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:09,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:09,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:09,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:09,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:18:09,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:09,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:09,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:09,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:09,128 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc2bc8e2b738274330116922d0213f314e2f92c105156edd0131038d71009ecb [2024-10-31 22:18:09,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:09,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:09,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:09,508 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:09,509 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:09,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-4.i Unable to find full path for "g++" [2024-10-31 22:18:11,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:12,076 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:12,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-4.i [2024-10-31 22:18:12,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/data/e57f18441/14e91487f69e4055b366181e0dcefccd/FLAG7557c9e63 [2024-10-31 22:18:12,122 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/data/e57f18441/14e91487f69e4055b366181e0dcefccd [2024-10-31 22:18:12,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:12,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:12,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:12,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:12,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:12,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470d2d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12, skipping insertion in model container [2024-10-31 22:18:12,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:12,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:12,710 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:12,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:12,812 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:12,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12 WrapperNode [2024-10-31 22:18:12,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:12,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:12,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:12,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:12,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,863 INFO L138 Inliner]: procedures = 159, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 198 [2024-10-31 22:18:12,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:12,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:12,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:12,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:12,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:12,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:12,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:12,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:12,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:12,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:12,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:12,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:18:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:18:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:18:13,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:18:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:18:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:13,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:18:13,008 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:18:13,192 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:18:13,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:18:13,570 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:18:13,570 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:18:13,650 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:18:13,651 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:18:13,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:13 BoogieIcfgContainer [2024-10-31 22:18:13,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:18:13,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:18:13,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:18:13,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:18:13,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:18:12" (1/3) ... [2024-10-31 22:18:13,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b383c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:13, skipping insertion in model container [2024-10-31 22:18:13,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12" (2/3) ... [2024-10-31 22:18:13,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b383c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:13, skipping insertion in model container [2024-10-31 22:18:13,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:13" (3/3) ... [2024-10-31 22:18:13,665 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race-4.i [2024-10-31 22:18:13,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:18:13,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:18:13,713 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:18:13,846 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:18:13,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 232 transitions, 468 flow [2024-10-31 22:18:14,028 INFO L124 PetriNetUnfolderBase]: 7/274 cut-off events. [2024-10-31 22:18:14,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:14,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 274 events. 7/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 193. Up to 4 conditions per place. [2024-10-31 22:18:14,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 232 transitions, 468 flow [2024-10-31 22:18:14,051 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 232 transitions, 468 flow [2024-10-31 22:18:14,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:14,073 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;@22afd918, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:14,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 22:18:14,117 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:18:14,117 INFO L124 PetriNetUnfolderBase]: 2/160 cut-off events. [2024-10-31 22:18:14,117 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:14,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:14,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:14,120 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:18:14,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:14,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1558289720, now seen corresponding path program 1 times [2024-10-31 22:18:14,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:14,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64318162] [2024-10-31 22:18:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:14,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:14,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64318162] [2024-10-31 22:18:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64318162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:14,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:14,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:14,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558623345] [2024-10-31 22:18:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:14,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:14,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:14,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 232 [2024-10-31 22:18:14,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 232 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2024-10-31 22:18:14,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:14,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 232 [2024-10-31 22:18:14,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:15,174 INFO L124 PetriNetUnfolderBase]: 98/684 cut-off events. [2024-10-31 22:18:15,175 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:18:15,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 684 events. 98/684 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3162 event pairs, 33 based on Foata normal form. 9/637 useless extension candidates. Maximal degree in co-relation 707. Up to 138 conditions per place. [2024-10-31 22:18:15,186 INFO L140 encePairwiseOnDemand]: 218/232 looper letters, 32 selfloop transitions, 8 changer transitions 1/247 dead transitions. [2024-10-31 22:18:15,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 247 transitions, 578 flow [2024-10-31 22:18:15,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2024-10-31 22:18:15,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9612068965517241 [2024-10-31 22:18:15,211 INFO L175 Difference]: Start difference. First operand has 231 places, 232 transitions, 468 flow. Second operand 3 states and 669 transitions. [2024-10-31 22:18:15,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 247 transitions, 578 flow [2024-10-31 22:18:15,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 247 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:18:15,223 INFO L231 Difference]: Finished difference. Result has 235 places, 236 transitions, 530 flow [2024-10-31 22:18:15,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=235, PETRI_TRANSITIONS=236} [2024-10-31 22:18:15,232 INFO L277 CegarLoopForPetriNet]: 231 programPoint places, 4 predicate places. [2024-10-31 22:18:15,233 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 236 transitions, 530 flow [2024-10-31 22:18:15,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2024-10-31 22:18:15,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:15,234 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:15,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:18:15,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:18:15,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:15,237 INFO L85 PathProgramCache]: Analyzing trace with hash -393361375, now seen corresponding path program 1 times [2024-10-31 22:18:15,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:15,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430358265] [2024-10-31 22:18:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:15,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:15,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:15,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430358265] [2024-10-31 22:18:15,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430358265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:15,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:15,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:15,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150620291] [2024-10-31 22:18:15,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:15,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:15,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:15,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:15,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 232 [2024-10-31 22:18:15,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 236 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2024-10-31 22:18:15,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:15,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 232 [2024-10-31 22:18:15,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:15,757 INFO L124 PetriNetUnfolderBase]: 114/812 cut-off events. [2024-10-31 22:18:15,758 INFO L125 PetriNetUnfolderBase]: For 164/171 co-relation queries the response was YES. [2024-10-31 22:18:15,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 812 events. 114/812 cut-off events. For 164/171 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4213 event pairs, 72 based on Foata normal form. 5/762 useless extension candidates. Maximal degree in co-relation 1025. Up to 226 conditions per place. [2024-10-31 22:18:15,763 INFO L140 encePairwiseOnDemand]: 226/232 looper letters, 29 selfloop transitions, 7 changer transitions 0/245 dead transitions. [2024-10-31 22:18:15,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 245 transitions, 630 flow [2024-10-31 22:18:15,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2024-10-31 22:18:15,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9367816091954023 [2024-10-31 22:18:15,766 INFO L175 Difference]: Start difference. First operand has 235 places, 236 transitions, 530 flow. Second operand 3 states and 652 transitions. [2024-10-31 22:18:15,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 245 transitions, 630 flow [2024-10-31 22:18:15,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 245 transitions, 610 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:15,778 INFO L231 Difference]: Finished difference. Result has 236 places, 241 transitions, 570 flow [2024-10-31 22:18:15,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=236, PETRI_TRANSITIONS=241} [2024-10-31 22:18:15,782 INFO L277 CegarLoopForPetriNet]: 231 programPoint places, 5 predicate places. [2024-10-31 22:18:15,782 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 241 transitions, 570 flow [2024-10-31 22:18:15,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2024-10-31 22:18:15,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:15,783 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:15,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:18:15,784 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:18:15,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:15,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1871831431, now seen corresponding path program 1 times [2024-10-31 22:18:15,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:15,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550654697] [2024-10-31 22:18:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:15,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:15,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:15,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550654697] [2024-10-31 22:18:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550654697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:15,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:15,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:15,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615653421] [2024-10-31 22:18:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:15,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:15,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:15,979 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 232 [2024-10-31 22:18:15,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 241 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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) [2024-10-31 22:18:15,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:15,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 232 [2024-10-31 22:18:15,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:16,192 INFO L124 PetriNetUnfolderBase]: 83/734 cut-off events. [2024-10-31 22:18:16,192 INFO L125 PetriNetUnfolderBase]: For 64/67 co-relation queries the response was YES. [2024-10-31 22:18:16,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 734 events. 83/734 cut-off events. For 64/67 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3732 event pairs, 45 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 838. Up to 114 conditions per place. [2024-10-31 22:18:16,217 INFO L140 encePairwiseOnDemand]: 228/232 looper letters, 17 selfloop transitions, 3 changer transitions 1/247 dead transitions. [2024-10-31 22:18:16,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 247 transitions, 624 flow [2024-10-31 22:18:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2024-10-31 22:18:16,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9540229885057471 [2024-10-31 22:18:16,220 INFO L175 Difference]: Start difference. First operand has 236 places, 241 transitions, 570 flow. Second operand 3 states and 664 transitions. [2024-10-31 22:18:16,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 247 transitions, 624 flow [2024-10-31 22:18:16,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 247 transitions, 610 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:16,231 INFO L231 Difference]: Finished difference. Result has 238 places, 243 transitions, 578 flow [2024-10-31 22:18:16,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=238, PETRI_TRANSITIONS=243} [2024-10-31 22:18:16,233 INFO L277 CegarLoopForPetriNet]: 231 programPoint places, 7 predicate places. [2024-10-31 22:18:16,235 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 243 transitions, 578 flow [2024-10-31 22:18:16,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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) [2024-10-31 22:18:16,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:16,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:16,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:18:16,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:18:16,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:16,239 INFO L85 PathProgramCache]: Analyzing trace with hash 2000284448, now seen corresponding path program 1 times [2024-10-31 22:18:16,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:16,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610564799] [2024-10-31 22:18:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:16,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:16,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:16,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610564799] [2024-10-31 22:18:16,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610564799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:16,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:16,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:16,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114931388] [2024-10-31 22:18:16,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:16,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:16,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:16,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:16,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:16,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 232 [2024-10-31 22:18:16,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 243 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 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) [2024-10-31 22:18:16,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:16,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 232 [2024-10-31 22:18:16,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:16,601 INFO L124 PetriNetUnfolderBase]: 92/747 cut-off events. [2024-10-31 22:18:16,602 INFO L125 PetriNetUnfolderBase]: For 73/77 co-relation queries the response was YES. [2024-10-31 22:18:16,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 747 events. 92/747 cut-off events. For 73/77 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3947 event pairs, 54 based on Foata normal form. 0/698 useless extension candidates. Maximal degree in co-relation 914. Up to 141 conditions per place. [2024-10-31 22:18:16,606 INFO L140 encePairwiseOnDemand]: 227/232 looper letters, 22 selfloop transitions, 5 changer transitions 0/252 dead transitions. [2024-10-31 22:18:16,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 252 transitions, 654 flow [2024-10-31 22:18:16,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:16,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2024-10-31 22:18:16,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9525862068965517 [2024-10-31 22:18:16,609 INFO L175 Difference]: Start difference. First operand has 238 places, 243 transitions, 578 flow. Second operand 3 states and 663 transitions. [2024-10-31 22:18:16,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 252 transitions, 654 flow [2024-10-31 22:18:16,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 252 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:16,619 INFO L231 Difference]: Finished difference. Result has 240 places, 246 transitions, 608 flow [2024-10-31 22:18:16,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=240, PETRI_TRANSITIONS=246} [2024-10-31 22:18:16,621 INFO L277 CegarLoopForPetriNet]: 231 programPoint places, 9 predicate places. [2024-10-31 22:18:16,622 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 246 transitions, 608 flow [2024-10-31 22:18:16,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 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) [2024-10-31 22:18:16,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:16,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:16,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:18:16,624 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:18:16,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash 319446888, now seen corresponding path program 1 times [2024-10-31 22:18:16,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:16,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811196411] [2024-10-31 22:18:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:16,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:16,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:16,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811196411] [2024-10-31 22:18:16,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811196411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:16,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:16,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:16,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228798097] [2024-10-31 22:18:16,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:16,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:16,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:16,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:16,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:16,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 232 [2024-10-31 22:18:16,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 246 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2024-10-31 22:18:16,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:16,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 232 [2024-10-31 22:18:16,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:17,095 INFO L124 PetriNetUnfolderBase]: 159/927 cut-off events. [2024-10-31 22:18:17,095 INFO L125 PetriNetUnfolderBase]: For 211/217 co-relation queries the response was YES. [2024-10-31 22:18:17,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1610 conditions, 927 events. 159/927 cut-off events. For 211/217 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5124 event pairs, 73 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 1385. Up to 275 conditions per place. [2024-10-31 22:18:17,100 INFO L140 encePairwiseOnDemand]: 225/232 looper letters, 29 selfloop transitions, 11 changer transitions 4/259 dead transitions. [2024-10-31 22:18:17,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 259 transitions, 730 flow [2024-10-31 22:18:17,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 659 transitions. [2024-10-31 22:18:17,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468390804597702 [2024-10-31 22:18:17,102 INFO L175 Difference]: Start difference. First operand has 240 places, 246 transitions, 608 flow. Second operand 3 states and 659 transitions. [2024-10-31 22:18:17,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 259 transitions, 730 flow [2024-10-31 22:18:17,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 259 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:17,109 INFO L231 Difference]: Finished difference. Result has 242 places, 250 transitions, 674 flow [2024-10-31 22:18:17,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=242, PETRI_TRANSITIONS=250} [2024-10-31 22:18:17,113 INFO L277 CegarLoopForPetriNet]: 231 programPoint places, 11 predicate places. [2024-10-31 22:18:17,113 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 250 transitions, 674 flow [2024-10-31 22:18:17,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2024-10-31 22:18:17,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:17,115 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:17,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:18:17,116 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:18:17,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:17,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2093932926, now seen corresponding path program 1 times [2024-10-31 22:18:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:17,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582648060] [2024-10-31 22:18:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:17,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:17,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:17,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:17,307 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:18:17,308 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-10-31 22:18:17,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-10-31 22:18:17,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-10-31 22:18:17,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-10-31 22:18:17,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-10-31 22:18:17,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-10-31 22:18:17,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-10-31 22:18:17,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-10-31 22:18:17,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-10-31 22:18:17,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-10-31 22:18:17,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-10-31 22:18:17,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:18:17,315 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:18:17,320 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:18:17,320 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:18:17,351 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:18:17,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 262 transitions, 534 flow [2024-10-31 22:18:17,437 INFO L124 PetriNetUnfolderBase]: 10/354 cut-off events. [2024-10-31 22:18:17,437 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:18:17,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 354 events. 10/354 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 275. Up to 6 conditions per place. [2024-10-31 22:18:17,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 262 transitions, 534 flow [2024-10-31 22:18:17,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 262 transitions, 534 flow [2024-10-31 22:18:17,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:17,443 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;@22afd918, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:17,443 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-31 22:18:17,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:18:17,457 INFO L124 PetriNetUnfolderBase]: 2/160 cut-off events. [2024-10-31 22:18:17,457 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:17,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:17,458 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:17,458 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:17,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:17,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1014442248, now seen corresponding path program 1 times [2024-10-31 22:18:17,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:17,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333458271] [2024-10-31 22:18:17,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:17,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:17,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:17,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333458271] [2024-10-31 22:18:17,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333458271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:17,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:17,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:17,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298455149] [2024-10-31 22:18:17,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:17,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:17,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:17,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:17,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 262 [2024-10-31 22:18:17,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 262 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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) [2024-10-31 22:18:17,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:17,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 262 [2024-10-31 22:18:17,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:19,406 INFO L124 PetriNetUnfolderBase]: 2216/6761 cut-off events. [2024-10-31 22:18:19,407 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-10-31 22:18:19,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10465 conditions, 6761 events. 2216/6761 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 63917 event pairs, 879 based on Foata normal form. 92/6148 useless extension candidates. Maximal degree in co-relation 8872. Up to 2089 conditions per place. [2024-10-31 22:18:19,456 INFO L140 encePairwiseOnDemand]: 244/262 looper letters, 46 selfloop transitions, 11 changer transitions 1/285 dead transitions. [2024-10-31 22:18:19,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 285 transitions, 699 flow [2024-10-31 22:18:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:19,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:19,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2024-10-31 22:18:19,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9541984732824428 [2024-10-31 22:18:19,459 INFO L175 Difference]: Start difference. First operand has 263 places, 262 transitions, 534 flow. Second operand 3 states and 750 transitions. [2024-10-31 22:18:19,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 285 transitions, 699 flow [2024-10-31 22:18:19,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 285 transitions, 699 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:18:19,465 INFO L231 Difference]: Finished difference. Result has 267 places, 269 transitions, 622 flow [2024-10-31 22:18:19,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=267, PETRI_TRANSITIONS=269} [2024-10-31 22:18:19,467 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 4 predicate places. [2024-10-31 22:18:19,467 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 269 transitions, 622 flow [2024-10-31 22:18:19,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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) [2024-10-31 22:18:19,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:19,468 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:19,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:18:19,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:19,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:19,469 INFO L85 PathProgramCache]: Analyzing trace with hash 755746279, now seen corresponding path program 1 times [2024-10-31 22:18:19,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:19,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132272698] [2024-10-31 22:18:19,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:19,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:19,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:19,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132272698] [2024-10-31 22:18:19,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132272698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:19,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:19,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:19,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971651866] [2024-10-31 22:18:19,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:19,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:19,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:19,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:19,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:19,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 262 [2024-10-31 22:18:19,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 269 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2024-10-31 22:18:19,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:19,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 262 [2024-10-31 22:18:19,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:21,860 INFO L124 PetriNetUnfolderBase]: 2480/8562 cut-off events. [2024-10-31 22:18:21,861 INFO L125 PetriNetUnfolderBase]: For 2807/3012 co-relation queries the response was YES. [2024-10-31 22:18:21,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15328 conditions, 8562 events. 2480/8562 cut-off events. For 2807/3012 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 88093 event pairs, 1597 based on Foata normal form. 70/7873 useless extension candidates. Maximal degree in co-relation 13171. Up to 3442 conditions per place. [2024-10-31 22:18:21,957 INFO L140 encePairwiseOnDemand]: 254/262 looper letters, 42 selfloop transitions, 12 changer transitions 0/287 dead transitions. [2024-10-31 22:18:21,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 287 transitions, 790 flow [2024-10-31 22:18:21,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:21,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:21,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2024-10-31 22:18:21,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9338422391857506 [2024-10-31 22:18:21,960 INFO L175 Difference]: Start difference. First operand has 267 places, 269 transitions, 622 flow. Second operand 3 states and 734 transitions. [2024-10-31 22:18:21,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 287 transitions, 790 flow [2024-10-31 22:18:21,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 287 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:21,980 INFO L231 Difference]: Finished difference. Result has 268 places, 279 transitions, 706 flow [2024-10-31 22:18:21,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=268, PETRI_TRANSITIONS=279} [2024-10-31 22:18:21,982 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 5 predicate places. [2024-10-31 22:18:21,982 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 279 transitions, 706 flow [2024-10-31 22:18:21,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2024-10-31 22:18:21,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:21,984 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:21,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:18:21,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:21,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:21,986 INFO L85 PathProgramCache]: Analyzing trace with hash -609232263, now seen corresponding path program 1 times [2024-10-31 22:18:21,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:21,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561857627] [2024-10-31 22:18:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:22,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:22,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561857627] [2024-10-31 22:18:22,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561857627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:22,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:22,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:22,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316395134] [2024-10-31 22:18:22,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:22,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:22,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:22,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:22,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:22,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 262 [2024-10-31 22:18:22,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 279 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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) [2024-10-31 22:18:22,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:22,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 262 [2024-10-31 22:18:22,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:24,111 INFO L124 PetriNetUnfolderBase]: 1878/7688 cut-off events. [2024-10-31 22:18:24,112 INFO L125 PetriNetUnfolderBase]: For 1101/1918 co-relation queries the response was YES. [2024-10-31 22:18:24,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12618 conditions, 7688 events. 1878/7688 cut-off events. For 1101/1918 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 82748 event pairs, 1092 based on Foata normal form. 7/6759 useless extension candidates. Maximal degree in co-relation 10919. Up to 1725 conditions per place. [2024-10-31 22:18:24,184 INFO L140 encePairwiseOnDemand]: 257/262 looper letters, 28 selfloop transitions, 4 changer transitions 0/290 dead transitions. [2024-10-31 22:18:24,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 290 transitions, 792 flow [2024-10-31 22:18:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:24,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2024-10-31 22:18:24,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.950381679389313 [2024-10-31 22:18:24,188 INFO L175 Difference]: Start difference. First operand has 268 places, 279 transitions, 706 flow. Second operand 3 states and 747 transitions. [2024-10-31 22:18:24,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 290 transitions, 792 flow [2024-10-31 22:18:24,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 290 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:24,203 INFO L231 Difference]: Finished difference. Result has 270 places, 282 transitions, 712 flow [2024-10-31 22:18:24,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=270, PETRI_TRANSITIONS=282} [2024-10-31 22:18:24,206 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 7 predicate places. [2024-10-31 22:18:24,206 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 282 transitions, 712 flow [2024-10-31 22:18:24,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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) [2024-10-31 22:18:24,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:24,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:24,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:18:24,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:24,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:24,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1402832215, now seen corresponding path program 1 times [2024-10-31 22:18:24,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:24,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675844556] [2024-10-31 22:18:24,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:24,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:24,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:24,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675844556] [2024-10-31 22:18:24,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675844556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:24,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:24,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:24,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82957001] [2024-10-31 22:18:24,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:24,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:24,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:24,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:24,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:24,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 262 [2024-10-31 22:18:24,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 282 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 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) [2024-10-31 22:18:24,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:24,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 262 [2024-10-31 22:18:24,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:26,539 INFO L124 PetriNetUnfolderBase]: 2430/9836 cut-off events. [2024-10-31 22:18:26,539 INFO L125 PetriNetUnfolderBase]: For 1611/2578 co-relation queries the response was YES. [2024-10-31 22:18:26,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16531 conditions, 9836 events. 2430/9836 cut-off events. For 1611/2578 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 113160 event pairs, 1418 based on Foata normal form. 11/8675 useless extension candidates. Maximal degree in co-relation 14739. Up to 2447 conditions per place. [2024-10-31 22:18:26,622 INFO L140 encePairwiseOnDemand]: 256/262 looper letters, 34 selfloop transitions, 7 changer transitions 0/298 dead transitions. [2024-10-31 22:18:26,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 298 transitions, 841 flow [2024-10-31 22:18:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2024-10-31 22:18:26,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.950381679389313 [2024-10-31 22:18:26,625 INFO L175 Difference]: Start difference. First operand has 270 places, 282 transitions, 712 flow. Second operand 3 states and 747 transitions. [2024-10-31 22:18:26,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 298 transitions, 841 flow [2024-10-31 22:18:26,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 298 transitions, 829 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:26,638 INFO L231 Difference]: Finished difference. Result has 272 places, 287 transitions, 760 flow [2024-10-31 22:18:26,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=272, PETRI_TRANSITIONS=287} [2024-10-31 22:18:26,639 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 9 predicate places. [2024-10-31 22:18:26,640 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 287 transitions, 760 flow [2024-10-31 22:18:26,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 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) [2024-10-31 22:18:26,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:26,641 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:26,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:18:26,641 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:26,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:26,642 INFO L85 PathProgramCache]: Analyzing trace with hash -434774543, now seen corresponding path program 1 times [2024-10-31 22:18:26,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:26,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142456155] [2024-10-31 22:18:26,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:26,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:26,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:26,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142456155] [2024-10-31 22:18:26,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142456155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:26,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:26,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118411270] [2024-10-31 22:18:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:26,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:26,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:26,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 262 [2024-10-31 22:18:26,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 287 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2024-10-31 22:18:26,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:26,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 262 [2024-10-31 22:18:26,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:29,072 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([712] L713-6-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][270], [281#true, Black: 273#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet10#1|), 200#L712-1true, 262#true, Black: 278#(= |#race~data~0| 0), 221#L695-2true, 286#true, 159#L695-6true, 264#true, Black: 283#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 266#true]) [2024-10-31 22:18:29,073 INFO L294 olderBase$Statistics]: this new event has 251 ancestors and is cut-off event [2024-10-31 22:18:29,073 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-10-31 22:18:29,073 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-10-31 22:18:29,073 INFO L297 olderBase$Statistics]: existing Event has 251 ancestors and is cut-off event [2024-10-31 22:18:29,182 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([712] L713-6-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][172], [281#true, 38#L697true, Black: 273#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet10#1|), 200#L712-1true, 262#true, Black: 278#(= |#race~data~0| 0), 221#L695-2true, 286#true, 264#true, Black: 283#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 266#true]) [2024-10-31 22:18:29,183 INFO L294 olderBase$Statistics]: this new event has 252 ancestors and is cut-off event [2024-10-31 22:18:29,183 INFO L297 olderBase$Statistics]: existing Event has 247 ancestors and is cut-off event [2024-10-31 22:18:29,183 INFO L297 olderBase$Statistics]: existing Event has 247 ancestors and is cut-off event [2024-10-31 22:18:29,183 INFO L297 olderBase$Statistics]: existing Event has 252 ancestors and is cut-off event [2024-10-31 22:18:29,339 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([712] L713-6-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][172], [260#L697-3true, 281#true, Black: 273#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet10#1|), 200#L712-1true, 262#true, Black: 278#(= |#race~data~0| 0), 221#L695-2true, 286#true, 264#true, Black: 283#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 266#true]) [2024-10-31 22:18:29,339 INFO L294 olderBase$Statistics]: this new event has 253 ancestors and is cut-off event [2024-10-31 22:18:29,340 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-10-31 22:18:29,340 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-10-31 22:18:29,340 INFO L297 olderBase$Statistics]: existing Event has 253 ancestors and is cut-off event [2024-10-31 22:18:29,600 INFO L124 PetriNetUnfolderBase]: 4089/13244 cut-off events. [2024-10-31 22:18:29,600 INFO L125 PetriNetUnfolderBase]: For 5573/5897 co-relation queries the response was YES. [2024-10-31 22:18:29,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25628 conditions, 13244 events. 4089/13244 cut-off events. For 5573/5897 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 146600 event pairs, 2075 based on Foata normal form. 79/11927 useless extension candidates. Maximal degree in co-relation 21564. Up to 5204 conditions per place. [2024-10-31 22:18:29,707 INFO L140 encePairwiseOnDemand]: 253/262 looper letters, 49 selfloop transitions, 19 changer transitions 0/313 dead transitions. [2024-10-31 22:18:29,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 313 transitions, 997 flow [2024-10-31 22:18:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2024-10-31 22:18:29,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9440203562340967 [2024-10-31 22:18:29,710 INFO L175 Difference]: Start difference. First operand has 272 places, 287 transitions, 760 flow. Second operand 3 states and 742 transitions. [2024-10-31 22:18:29,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 313 transitions, 997 flow [2024-10-31 22:18:29,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 313 transitions, 983 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:29,722 INFO L231 Difference]: Finished difference. Result has 274 places, 302 transitions, 928 flow [2024-10-31 22:18:29,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=928, PETRI_PLACES=274, PETRI_TRANSITIONS=302} [2024-10-31 22:18:29,723 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 11 predicate places. [2024-10-31 22:18:29,724 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 302 transitions, 928 flow [2024-10-31 22:18:29,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2024-10-31 22:18:29,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:29,725 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:29,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:18:29,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:29,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:29,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1143101991, now seen corresponding path program 1 times [2024-10-31 22:18:29,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:29,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897003860] [2024-10-31 22:18:29,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:29,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:30,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:30,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897003860] [2024-10-31 22:18:30,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897003860] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:18:30,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232755564] [2024-10-31 22:18:30,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:30,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:18:30,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:30,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:18:30,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:18:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:30,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:30,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:30,945 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:18:30,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232755564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:30,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:18:30,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-31 22:18:30,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801235180] [2024-10-31 22:18:30,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:30,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:18:30,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:30,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:18:30,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:18:30,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 262 [2024-10-31 22:18:30,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 302 transitions, 928 flow. Second operand has 5 states, 5 states have (on average 235.4) internal successors, (1177), 5 states have internal predecessors, (1177), 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) [2024-10-31 22:18:30,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:30,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 262 [2024-10-31 22:18:30,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:34,115 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([712] L713-6-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][281], [Black: 288#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 273#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet10#1|), 200#L712-1true, 291#true, 262#true, Black: 278#(= |#race~data~0| 0), 221#L695-2true, 286#true, 159#L695-6true, 264#true, Black: 283#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 266#true]) [2024-10-31 22:18:34,115 INFO L294 olderBase$Statistics]: this new event has 251 ancestors and is cut-off event [2024-10-31 22:18:34,115 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-10-31 22:18:34,116 INFO L297 olderBase$Statistics]: existing Event has 251 ancestors and is cut-off event [2024-10-31 22:18:34,116 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-10-31 22:18:34,121 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([712] L713-6-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][281], [Black: 288#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 273#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet10#1|), 200#L712-1true, 262#true, Black: 278#(= |#race~data~0| 0), 221#L695-2true, 286#true, 159#L695-6true, Black: 283#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 264#true, Black: 266#true, 295#(<= 1 ~threads_alive~0)]) [2024-10-31 22:18:34,121 INFO L294 olderBase$Statistics]: this new event has 251 ancestors and is cut-off event [2024-10-31 22:18:34,121 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-10-31 22:18:34,122 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-10-31 22:18:34,122 INFO L297 olderBase$Statistics]: existing Event has 251 ancestors and is cut-off event [2024-10-31 22:18:34,452 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([712] L713-6-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][172], [38#L697true, Black: 288#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 273#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet10#1|), 200#L712-1true, 291#true, 262#true, Black: 278#(= |#race~data~0| 0), 221#L695-2true, 286#true, 264#true, Black: 283#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 266#true]) [2024-10-31 22:18:34,453 INFO L294 olderBase$Statistics]: this new event has 252 ancestors and is cut-off event [2024-10-31 22:18:34,453 INFO L297 olderBase$Statistics]: existing Event has 247 ancestors and is cut-off event [2024-10-31 22:18:34,453 INFO L297 olderBase$Statistics]: existing Event has 247 ancestors and is cut-off event [2024-10-31 22:18:34,453 INFO L297 olderBase$Statistics]: existing Event has 252 ancestors and is cut-off event [2024-10-31 22:18:34,457 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([712] L713-6-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][172], [38#L697true, Black: 288#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 273#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet10#1|), 200#L712-1true, 262#true, Black: 278#(= |#race~data~0| 0), 221#L695-2true, 286#true, Black: 283#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 264#true, 295#(<= 1 ~threads_alive~0), Black: 266#true]) [2024-10-31 22:18:34,457 INFO L294 olderBase$Statistics]: this new event has 252 ancestors and is cut-off event [2024-10-31 22:18:34,458 INFO L297 olderBase$Statistics]: existing Event has 247 ancestors and is cut-off event [2024-10-31 22:18:34,458 INFO L297 olderBase$Statistics]: existing Event has 247 ancestors and is cut-off event [2024-10-31 22:18:34,458 INFO L297 olderBase$Statistics]: existing Event has 252 ancestors and is cut-off event [2024-10-31 22:18:35,249 INFO L124 PetriNetUnfolderBase]: 5622/18915 cut-off events. [2024-10-31 22:18:35,250 INFO L125 PetriNetUnfolderBase]: For 9477/10449 co-relation queries the response was YES. [2024-10-31 22:18:35,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38392 conditions, 18915 events. 5622/18915 cut-off events. For 9477/10449 co-relation queries the response was YES. Maximal size of possible extension queue 873. Compared 229256 event pairs, 1257 based on Foata normal form. 132/17167 useless extension candidates. Maximal degree in co-relation 30507. Up to 3127 conditions per place. [2024-10-31 22:18:35,418 INFO L140 encePairwiseOnDemand]: 254/262 looper letters, 69 selfloop transitions, 14 changer transitions 3/361 dead transitions. [2024-10-31 22:18:35,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 361 transitions, 1219 flow [2024-10-31 22:18:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:18:35,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:18:35,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1718 transitions. [2024-10-31 22:18:35,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9367502726281353 [2024-10-31 22:18:35,425 INFO L175 Difference]: Start difference. First operand has 274 places, 302 transitions, 928 flow. Second operand 7 states and 1718 transitions. [2024-10-31 22:18:35,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 361 transitions, 1219 flow [2024-10-31 22:18:35,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 361 transitions, 1181 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:35,508 INFO L231 Difference]: Finished difference. Result has 281 places, 315 transitions, 969 flow [2024-10-31 22:18:35,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=969, PETRI_PLACES=281, PETRI_TRANSITIONS=315} [2024-10-31 22:18:35,509 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 18 predicate places. [2024-10-31 22:18:35,510 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 315 transitions, 969 flow [2024-10-31 22:18:35,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 235.4) internal successors, (1177), 5 states have internal predecessors, (1177), 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) [2024-10-31 22:18:35,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:35,511 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:35,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:18:35,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:18:35,713 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:35,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1106641400, now seen corresponding path program 1 times [2024-10-31 22:18:35,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:35,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201608054] [2024-10-31 22:18:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:35,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:18:36,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:36,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201608054] [2024-10-31 22:18:36,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201608054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:36,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:36,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:18:36,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817916455] [2024-10-31 22:18:36,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:36,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:36,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:36,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:36,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 262 [2024-10-31 22:18:36,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 315 transitions, 969 flow. Second operand has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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) [2024-10-31 22:18:36,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:36,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 262 [2024-10-31 22:18:36,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:37,216 INFO L124 PetriNetUnfolderBase]: 216/1813 cut-off events. [2024-10-31 22:18:37,216 INFO L125 PetriNetUnfolderBase]: For 464/477 co-relation queries the response was YES. [2024-10-31 22:18:37,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3228 conditions, 1813 events. 216/1813 cut-off events. For 464/477 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 12701 event pairs, 65 based on Foata normal form. 79/1813 useless extension candidates. Maximal degree in co-relation 2647. Up to 212 conditions per place. [2024-10-31 22:18:37,226 INFO L140 encePairwiseOnDemand]: 250/262 looper letters, 11 selfloop transitions, 12 changer transitions 0/275 dead transitions. [2024-10-31 22:18:37,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 275 transitions, 762 flow [2024-10-31 22:18:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:18:37,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:18:37,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1233 transitions. [2024-10-31 22:18:37,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9412213740458015 [2024-10-31 22:18:37,229 INFO L175 Difference]: Start difference. First operand has 281 places, 315 transitions, 969 flow. Second operand 5 states and 1233 transitions. [2024-10-31 22:18:37,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 275 transitions, 762 flow [2024-10-31 22:18:37,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 275 transitions, 714 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-10-31 22:18:37,238 INFO L231 Difference]: Finished difference. Result has 273 places, 270 transitions, 677 flow [2024-10-31 22:18:37,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=677, PETRI_PLACES=273, PETRI_TRANSITIONS=270} [2024-10-31 22:18:37,239 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 10 predicate places. [2024-10-31 22:18:37,239 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 270 transitions, 677 flow [2024-10-31 22:18:37,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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) [2024-10-31 22:18:37,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:37,240 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:37,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:18:37,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:37,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:37,242 INFO L85 PathProgramCache]: Analyzing trace with hash 374705611, now seen corresponding path program 1 times [2024-10-31 22:18:37,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:37,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775032348] [2024-10-31 22:18:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:37,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-31 22:18:37,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:37,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775032348] [2024-10-31 22:18:37,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775032348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:37,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:37,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888336074] [2024-10-31 22:18:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:37,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:37,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:37,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 262 [2024-10-31 22:18:37,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 270 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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) [2024-10-31 22:18:37,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:37,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 262 [2024-10-31 22:18:37,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:37,939 INFO L124 PetriNetUnfolderBase]: 647/2737 cut-off events. [2024-10-31 22:18:37,940 INFO L125 PetriNetUnfolderBase]: For 860/872 co-relation queries the response was YES. [2024-10-31 22:18:37,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5217 conditions, 2737 events. 647/2737 cut-off events. For 860/872 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 21879 event pairs, 351 based on Foata normal form. 0/2592 useless extension candidates. Maximal degree in co-relation 4638. Up to 908 conditions per place. [2024-10-31 22:18:37,966 INFO L140 encePairwiseOnDemand]: 256/262 looper letters, 34 selfloop transitions, 7 changer transitions 0/284 dead transitions. [2024-10-31 22:18:37,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 284 transitions, 811 flow [2024-10-31 22:18:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:37,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 746 transitions. [2024-10-31 22:18:37,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9491094147582697 [2024-10-31 22:18:37,970 INFO L175 Difference]: Start difference. First operand has 273 places, 270 transitions, 677 flow. Second operand 3 states and 746 transitions. [2024-10-31 22:18:37,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 284 transitions, 811 flow [2024-10-31 22:18:37,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 284 transitions, 790 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:18:37,978 INFO L231 Difference]: Finished difference. Result has 274 places, 274 transitions, 718 flow [2024-10-31 22:18:37,979 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=274, PETRI_TRANSITIONS=274} [2024-10-31 22:18:37,980 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 11 predicate places. [2024-10-31 22:18:37,981 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 274 transitions, 718 flow [2024-10-31 22:18:37,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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) [2024-10-31 22:18:37,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:37,982 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:37,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:18:37,983 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:37,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:37,983 INFO L85 PathProgramCache]: Analyzing trace with hash 773386076, now seen corresponding path program 1 times [2024-10-31 22:18:37,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:37,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004572606] [2024-10-31 22:18:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:37,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-31 22:18:38,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:38,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004572606] [2024-10-31 22:18:38,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004572606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397019040] [2024-10-31 22:18:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:38,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:38,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 262 [2024-10-31 22:18:38,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 274 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2024-10-31 22:18:38,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:38,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 262 [2024-10-31 22:18:38,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:38,885 INFO L124 PetriNetUnfolderBase]: 335/2645 cut-off events. [2024-10-31 22:18:38,885 INFO L125 PetriNetUnfolderBase]: For 787/854 co-relation queries the response was YES. [2024-10-31 22:18:38,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4545 conditions, 2645 events. 335/2645 cut-off events. For 787/854 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 22776 event pairs, 62 based on Foata normal form. 12/2575 useless extension candidates. Maximal degree in co-relation 3284. Up to 495 conditions per place. [2024-10-31 22:18:38,900 INFO L140 encePairwiseOnDemand]: 253/262 looper letters, 21 selfloop transitions, 9 changer transitions 0/287 dead transitions. [2024-10-31 22:18:38,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 287 transitions, 819 flow [2024-10-31 22:18:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:38,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 758 transitions. [2024-10-31 22:18:38,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9643765903307888 [2024-10-31 22:18:38,903 INFO L175 Difference]: Start difference. First operand has 274 places, 274 transitions, 718 flow. Second operand 3 states and 758 transitions. [2024-10-31 22:18:38,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 287 transitions, 819 flow [2024-10-31 22:18:38,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 287 transitions, 805 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:38,912 INFO L231 Difference]: Finished difference. Result has 275 places, 281 transitions, 764 flow [2024-10-31 22:18:38,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=275, PETRI_TRANSITIONS=281} [2024-10-31 22:18:38,913 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 12 predicate places. [2024-10-31 22:18:38,913 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 281 transitions, 764 flow [2024-10-31 22:18:38,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2024-10-31 22:18:38,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:38,915 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:38,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:18:38,915 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:18:38,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:38,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1258401358, now seen corresponding path program 2 times [2024-10-31 22:18:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:38,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926056547] [2024-10-31 22:18:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:18:39,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:39,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926056547] [2024-10-31 22:18:39,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926056547] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:18:39,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573240548] [2024-10-31 22:18:39,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:18:39,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:18:39,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:39,410 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:18:39,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df50bf6e-c4c4-4e49-848f-244f2eee9436/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:18:39,647 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:18:39,647 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:18:39,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:18:39,662 INFO L278 TraceCheckSpWp]: Computing forward predicates...