./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/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_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/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_b66e365a-aed3-402b-87f8-9c45894bcebb/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 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:58,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:58,691 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:59:58,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:58,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:58,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:58,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:58,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:58,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:58,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:58,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:58,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:58,751 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:58,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:58,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:58,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:58,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:58,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:58,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:58,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:58,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:58,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:58,764 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:59:58,764 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:58,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:58,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:58,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:58,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:58,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:58,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:58,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:58,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:58,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:58,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:58,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:58,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:58,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:58,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:58,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:58,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:58,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:58,781 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_b66e365a-aed3-402b-87f8-9c45894bcebb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c [2024-10-31 21:59:59,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:59,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:59,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:59,162 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:59,163 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:59,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c Unable to find full path for "g++" [2024-10-31 22:00:01,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:01,563 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:01,564 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2024-10-31 22:00:01,577 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/data/15ab2188a/09aec7efcaf749ebbe138074783205e0/FLAG8dfb23a4b [2024-10-31 22:00:01,864 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/data/15ab2188a/09aec7efcaf749ebbe138074783205e0 [2024-10-31 22:00:01,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:01,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:01,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:01,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:01,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:01,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01, skipping insertion in model container [2024-10-31 22:00:01,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:02,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:02,229 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:02,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:02,308 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:02,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02 WrapperNode [2024-10-31 22:00:02,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:02,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:02,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:02,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:02,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,392 INFO L138 Inliner]: procedures = 25, calls = 33, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 446 [2024-10-31 22:00:02,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:02,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:02,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:02,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:02,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:02,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:02,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:02,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:02,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:02,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:02,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:02,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:00:02,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:00:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:00:02,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:00:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:00:02,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:00:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:00:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:00:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:00:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:00:02,570 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 22:00:02,765 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:02,768 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:03,879 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:00:03,879 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:03,924 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:03,927 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:00:03,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:03 BoogieIcfgContainer [2024-10-31 22:00:03,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:03,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:03,933 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:03,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:03,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:01" (1/3) ... [2024-10-31 22:00:03,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601ae3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:03, skipping insertion in model container [2024-10-31 22:00:03,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (2/3) ... [2024-10-31 22:00:03,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601ae3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:03, skipping insertion in model container [2024-10-31 22:00:03,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:03" (3/3) ... [2024-10-31 22:00:03,943 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2024-10-31 22:00:03,968 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:03,968 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2024-10-31 22:00:03,970 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:00:04,160 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:00:04,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 566 places, 589 transitions, 1199 flow [2024-10-31 22:00:04,646 INFO L124 PetriNetUnfolderBase]: 33/586 cut-off events. [2024-10-31 22:00:04,646 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:00:04,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 586 events. 33/586 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1247 event pairs, 0 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 436. Up to 2 conditions per place. [2024-10-31 22:00:04,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 566 places, 589 transitions, 1199 flow [2024-10-31 22:00:04,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 545 places, 566 transitions, 1150 flow [2024-10-31 22:00:04,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:04,715 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;@67cb631b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:04,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2024-10-31 22:00:04,729 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:04,730 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2024-10-31 22:00:04,731 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:04,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:04,732 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] [2024-10-31 22:00:04,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:04,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1756171046, now seen corresponding path program 1 times [2024-10-31 22:00:04,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346751908] [2024-10-31 22:00:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,858 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 22:00:05,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346751908] [2024-10-31 22:00:05,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346751908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:05,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:05,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:05,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055434608] [2024-10-31 22:00:05,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:05,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:05,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:05,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:06,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 493 out of 589 [2024-10-31 22:00:06,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 566 transitions, 1150 flow. Second operand has 6 states, 6 states have (on average 494.5) internal successors, (2967), 6 states have internal predecessors, (2967), 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 22:00:06,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:06,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 493 of 589 [2024-10-31 22:00:06,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:11,397 INFO L124 PetriNetUnfolderBase]: 2074/15191 cut-off events. [2024-10-31 22:00:11,398 INFO L125 PetriNetUnfolderBase]: For 631/633 co-relation queries the response was YES. [2024-10-31 22:00:11,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18394 conditions, 15191 events. 2074/15191 cut-off events. For 631/633 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 184180 event pairs, 1520 based on Foata normal form. 1015/13833 useless extension candidates. Maximal degree in co-relation 16163. Up to 2820 conditions per place. [2024-10-31 22:00:11,656 INFO L140 encePairwiseOnDemand]: 549/589 looper letters, 54 selfloop transitions, 15 changer transitions 7/541 dead transitions. [2024-10-31 22:00:11,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 541 transitions, 1238 flow [2024-10-31 22:00:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3052 transitions. [2024-10-31 22:00:11,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8636106395019808 [2024-10-31 22:00:11,701 INFO L175 Difference]: Start difference. First operand has 545 places, 566 transitions, 1150 flow. Second operand 6 states and 3052 transitions. [2024-10-31 22:00:11,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 541 transitions, 1238 flow [2024-10-31 22:00:11,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 541 transitions, 1226 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:00:11,744 INFO L231 Difference]: Finished difference. Result has 541 places, 534 transitions, 1104 flow [2024-10-31 22:00:11,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1104, PETRI_PLACES=541, PETRI_TRANSITIONS=534} [2024-10-31 22:00:11,754 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -4 predicate places. [2024-10-31 22:00:11,755 INFO L471 AbstractCegarLoop]: Abstraction has has 541 places, 534 transitions, 1104 flow [2024-10-31 22:00:11,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 494.5) internal successors, (2967), 6 states have internal predecessors, (2967), 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 22:00:11,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:11,760 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] [2024-10-31 22:00:11,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:11,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:11,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2135015568, now seen corresponding path program 1 times [2024-10-31 22:00:11,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260920868] [2024-10-31 22:00:11,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,825 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 22:00:11,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260920868] [2024-10-31 22:00:11,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260920868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:11,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:11,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:11,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59267036] [2024-10-31 22:00:11,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:11,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:11,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:11,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 589 [2024-10-31 22:00:11,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 534 transitions, 1104 flow. Second operand has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:11,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:11,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 589 [2024-10-31 22:00:11,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:12,188 INFO L124 PetriNetUnfolderBase]: 24/956 cut-off events. [2024-10-31 22:00:12,188 INFO L125 PetriNetUnfolderBase]: For 2/5 co-relation queries the response was YES. [2024-10-31 22:00:12,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 956 events. 24/956 cut-off events. For 2/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3936 event pairs, 7 based on Foata normal form. 0/828 useless extension candidates. Maximal degree in co-relation 959. Up to 25 conditions per place. [2024-10-31 22:00:12,209 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 11 selfloop transitions, 2 changer transitions 0/533 dead transitions. [2024-10-31 22:00:12,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 533 transitions, 1128 flow [2024-10-31 22:00:12,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:12,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2024-10-31 22:00:12,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9417091114883984 [2024-10-31 22:00:12,217 INFO L175 Difference]: Start difference. First operand has 541 places, 534 transitions, 1104 flow. Second operand 3 states and 1664 transitions. [2024-10-31 22:00:12,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 533 transitions, 1128 flow [2024-10-31 22:00:12,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 533 transitions, 1098 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:12,233 INFO L231 Difference]: Finished difference. Result has 530 places, 533 transitions, 1076 flow [2024-10-31 22:00:12,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1072, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1076, PETRI_PLACES=530, PETRI_TRANSITIONS=533} [2024-10-31 22:00:12,236 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -15 predicate places. [2024-10-31 22:00:12,236 INFO L471 AbstractCegarLoop]: Abstraction has has 530 places, 533 transitions, 1076 flow [2024-10-31 22:00:12,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:12,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:12,239 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] [2024-10-31 22:00:12,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:12,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:12,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1256574315, now seen corresponding path program 1 times [2024-10-31 22:00:12,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475567935] [2024-10-31 22:00:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,326 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 22:00:12,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475567935] [2024-10-31 22:00:12,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475567935] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:12,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:12,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:12,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638276252] [2024-10-31 22:00:12,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:12,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:12,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 589 [2024-10-31 22:00:12,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 533 transitions, 1076 flow. Second operand has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:12,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:12,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 589 [2024-10-31 22:00:12,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:12,640 INFO L124 PetriNetUnfolderBase]: 18/748 cut-off events. [2024-10-31 22:00:12,640 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-10-31 22:00:12,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 748 events. 18/748 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2600 event pairs, 5 based on Foata normal form. 0/655 useless extension candidates. Maximal degree in co-relation 708. Up to 22 conditions per place. [2024-10-31 22:00:12,654 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 11 selfloop transitions, 2 changer transitions 0/532 dead transitions. [2024-10-31 22:00:12,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 532 transitions, 1100 flow [2024-10-31 22:00:12,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2024-10-31 22:00:12,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9417091114883984 [2024-10-31 22:00:12,660 INFO L175 Difference]: Start difference. First operand has 530 places, 533 transitions, 1076 flow. Second operand 3 states and 1664 transitions. [2024-10-31 22:00:12,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 532 transitions, 1100 flow [2024-10-31 22:00:12,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 532 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:12,671 INFO L231 Difference]: Finished difference. Result has 529 places, 532 transitions, 1074 flow [2024-10-31 22:00:12,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1074, PETRI_PLACES=529, PETRI_TRANSITIONS=532} [2024-10-31 22:00:12,674 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -16 predicate places. [2024-10-31 22:00:12,675 INFO L471 AbstractCegarLoop]: Abstraction has has 529 places, 532 transitions, 1074 flow [2024-10-31 22:00:12,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:12,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:12,677 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] [2024-10-31 22:00:12,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:12,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:12,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1445982715, now seen corresponding path program 1 times [2024-10-31 22:00:12,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359882968] [2024-10-31 22:00:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,791 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 22:00:12,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359882968] [2024-10-31 22:00:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359882968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:12,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442978516] [2024-10-31 22:00:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:12,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:12,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 589 [2024-10-31 22:00:12,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 532 transitions, 1074 flow. Second operand has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:12,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:12,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 589 [2024-10-31 22:00:12,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:13,023 INFO L124 PetriNetUnfolderBase]: 18/645 cut-off events. [2024-10-31 22:00:13,024 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-10-31 22:00:13,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 645 events. 18/645 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1998 event pairs, 7 based on Foata normal form. 0/570 useless extension candidates. Maximal degree in co-relation 560. Up to 25 conditions per place. [2024-10-31 22:00:13,037 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 11 selfloop transitions, 2 changer transitions 0/531 dead transitions. [2024-10-31 22:00:13,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 531 transitions, 1098 flow [2024-10-31 22:00:13,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:13,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2024-10-31 22:00:13,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9417091114883984 [2024-10-31 22:00:13,042 INFO L175 Difference]: Start difference. First operand has 529 places, 532 transitions, 1074 flow. Second operand 3 states and 1664 transitions. [2024-10-31 22:00:13,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 531 transitions, 1098 flow [2024-10-31 22:00:13,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 531 transitions, 1094 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:13,053 INFO L231 Difference]: Finished difference. Result has 528 places, 531 transitions, 1072 flow [2024-10-31 22:00:13,054 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1072, PETRI_PLACES=528, PETRI_TRANSITIONS=531} [2024-10-31 22:00:13,056 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -17 predicate places. [2024-10-31 22:00:13,056 INFO L471 AbstractCegarLoop]: Abstraction has has 528 places, 531 transitions, 1072 flow [2024-10-31 22:00:13,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:13,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:13,058 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] [2024-10-31 22:00:13,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:13,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:13,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:13,060 INFO L85 PathProgramCache]: Analyzing trace with hash -464666885, now seen corresponding path program 1 times [2024-10-31 22:00:13,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:13,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753688064] [2024-10-31 22:00:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:13,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,166 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 22:00:13,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:13,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753688064] [2024-10-31 22:00:13,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753688064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:13,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:13,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:13,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244182680] [2024-10-31 22:00:13,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:13,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:13,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 589 [2024-10-31 22:00:13,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 531 transitions, 1072 flow. Second operand has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:13,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:13,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 589 [2024-10-31 22:00:13,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:13,605 INFO L124 PetriNetUnfolderBase]: 28/1131 cut-off events. [2024-10-31 22:00:13,606 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:00:13,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 1131 events. 28/1131 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5491 event pairs, 7 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 1002. Up to 25 conditions per place. [2024-10-31 22:00:13,622 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 11 selfloop transitions, 2 changer transitions 0/530 dead transitions. [2024-10-31 22:00:13,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 530 transitions, 1096 flow [2024-10-31 22:00:13,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:13,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2024-10-31 22:00:13,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9417091114883984 [2024-10-31 22:00:13,632 INFO L175 Difference]: Start difference. First operand has 528 places, 531 transitions, 1072 flow. Second operand 3 states and 1664 transitions. [2024-10-31 22:00:13,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 530 transitions, 1096 flow [2024-10-31 22:00:13,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 530 transitions, 1092 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:13,642 INFO L231 Difference]: Finished difference. Result has 527 places, 530 transitions, 1070 flow [2024-10-31 22:00:13,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1070, PETRI_PLACES=527, PETRI_TRANSITIONS=530} [2024-10-31 22:00:13,644 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -18 predicate places. [2024-10-31 22:00:13,644 INFO L471 AbstractCegarLoop]: Abstraction has has 527 places, 530 transitions, 1070 flow [2024-10-31 22:00:13,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:13,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:13,646 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] [2024-10-31 22:00:13,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:13,646 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:13,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:13,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1972077386, now seen corresponding path program 1 times [2024-10-31 22:00:13,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:13,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183136830] [2024-10-31 22:00:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:13,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,717 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 22:00:13,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:13,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183136830] [2024-10-31 22:00:13,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183136830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:13,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:13,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:13,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379432262] [2024-10-31 22:00:13,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:13,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:13,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:13,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 589 [2024-10-31 22:00:13,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 530 transitions, 1070 flow. Second operand has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:13,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:13,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 589 [2024-10-31 22:00:13,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:13,979 INFO L124 PetriNetUnfolderBase]: 22/941 cut-off events. [2024-10-31 22:00:13,979 INFO L125 PetriNetUnfolderBase]: For 5/10 co-relation queries the response was YES. [2024-10-31 22:00:13,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 941 events. 22/941 cut-off events. For 5/10 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3551 event pairs, 5 based on Foata normal form. 0/819 useless extension candidates. Maximal degree in co-relation 799. Up to 22 conditions per place. [2024-10-31 22:00:13,997 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 11 selfloop transitions, 2 changer transitions 0/529 dead transitions. [2024-10-31 22:00:13,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 529 transitions, 1094 flow [2024-10-31 22:00:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:13,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2024-10-31 22:00:14,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9417091114883984 [2024-10-31 22:00:14,002 INFO L175 Difference]: Start difference. First operand has 527 places, 530 transitions, 1070 flow. Second operand 3 states and 1664 transitions. [2024-10-31 22:00:14,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 529 transitions, 1094 flow [2024-10-31 22:00:14,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 529 transitions, 1090 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:14,012 INFO L231 Difference]: Finished difference. Result has 526 places, 529 transitions, 1068 flow [2024-10-31 22:00:14,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1068, PETRI_PLACES=526, PETRI_TRANSITIONS=529} [2024-10-31 22:00:14,015 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -19 predicate places. [2024-10-31 22:00:14,016 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 529 transitions, 1068 flow [2024-10-31 22:00:14,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:14,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:14,018 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] [2024-10-31 22:00:14,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:14,018 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:14,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:14,019 INFO L85 PathProgramCache]: Analyzing trace with hash -761241225, now seen corresponding path program 1 times [2024-10-31 22:00:14,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:14,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478280351] [2024-10-31 22:00:14,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:14,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,087 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 22:00:14,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478280351] [2024-10-31 22:00:14,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478280351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:14,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:14,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:14,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008957661] [2024-10-31 22:00:14,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:14,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:14,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:14,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:14,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:14,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 589 [2024-10-31 22:00:14,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 529 transitions, 1068 flow. Second operand has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:14,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:14,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 589 [2024-10-31 22:00:14,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:14,311 INFO L124 PetriNetUnfolderBase]: 24/906 cut-off events. [2024-10-31 22:00:14,311 INFO L125 PetriNetUnfolderBase]: For 6/15 co-relation queries the response was YES. [2024-10-31 22:00:14,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 906 events. 24/906 cut-off events. For 6/15 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3249 event pairs, 7 based on Foata normal form. 0/790 useless extension candidates. Maximal degree in co-relation 758. Up to 25 conditions per place. [2024-10-31 22:00:14,326 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 11 selfloop transitions, 2 changer transitions 0/528 dead transitions. [2024-10-31 22:00:14,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 528 transitions, 1092 flow [2024-10-31 22:00:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2024-10-31 22:00:14,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9417091114883984 [2024-10-31 22:00:14,331 INFO L175 Difference]: Start difference. First operand has 526 places, 529 transitions, 1068 flow. Second operand 3 states and 1664 transitions. [2024-10-31 22:00:14,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 528 transitions, 1092 flow [2024-10-31 22:00:14,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 528 transitions, 1088 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:14,340 INFO L231 Difference]: Finished difference. Result has 525 places, 528 transitions, 1066 flow [2024-10-31 22:00:14,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1066, PETRI_PLACES=525, PETRI_TRANSITIONS=528} [2024-10-31 22:00:14,342 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -20 predicate places. [2024-10-31 22:00:14,342 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 528 transitions, 1066 flow [2024-10-31 22:00:14,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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 22:00:14,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:14,344 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] [2024-10-31 22:00:14,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:00:14,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:14,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1859492096, now seen corresponding path program 1 times [2024-10-31 22:00:14,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:14,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922735147] [2024-10-31 22:00:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:14,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,417 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 22:00:14,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922735147] [2024-10-31 22:00:14,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922735147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:14,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:14,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:14,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68778430] [2024-10-31 22:00:14,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:14,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:14,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:14,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:14,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:14,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 552 out of 589 [2024-10-31 22:00:14,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 528 transitions, 1066 flow. Second operand has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:00:14,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:14,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 552 of 589 [2024-10-31 22:00:14,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:14,846 INFO L124 PetriNetUnfolderBase]: 45/1330 cut-off events. [2024-10-31 22:00:14,849 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:00:14,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1395 conditions, 1330 events. 45/1330 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7336 event pairs, 6 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 1204. Up to 43 conditions per place. [2024-10-31 22:00:14,876 INFO L140 encePairwiseOnDemand]: 585/589 looper letters, 13 selfloop transitions, 2 changer transitions 0/530 dead transitions. [2024-10-31 22:00:14,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 530 transitions, 1102 flow [2024-10-31 22:00:14,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1673 transitions. [2024-10-31 22:00:14,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468024900962083 [2024-10-31 22:00:14,882 INFO L175 Difference]: Start difference. First operand has 525 places, 528 transitions, 1066 flow. Second operand 3 states and 1673 transitions. [2024-10-31 22:00:14,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 530 transitions, 1102 flow [2024-10-31 22:00:14,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 530 transitions, 1098 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:14,898 INFO L231 Difference]: Finished difference. Result has 524 places, 528 transitions, 1072 flow [2024-10-31 22:00:14,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1072, PETRI_PLACES=524, PETRI_TRANSITIONS=528} [2024-10-31 22:00:14,900 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -21 predicate places. [2024-10-31 22:00:14,900 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 528 transitions, 1072 flow [2024-10-31 22:00:14,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:00:14,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:14,903 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] [2024-10-31 22:00:14,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:00:14,903 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:14,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:14,904 INFO L85 PathProgramCache]: Analyzing trace with hash -731927162, now seen corresponding path program 1 times [2024-10-31 22:00:14,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:14,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811054645] [2024-10-31 22:00:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,993 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 22:00:14,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811054645] [2024-10-31 22:00:14,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811054645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:14,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:14,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:14,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864378842] [2024-10-31 22:00:14,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:14,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:14,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:14,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:14,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:15,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 552 out of 589 [2024-10-31 22:00:15,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 528 transitions, 1072 flow. Second operand has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:00:15,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:15,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 552 of 589 [2024-10-31 22:00:15,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:15,465 INFO L124 PetriNetUnfolderBase]: 36/1203 cut-off events. [2024-10-31 22:00:15,465 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:00:15,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 1203 events. 36/1203 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5729 event pairs, 6 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 953. Up to 31 conditions per place. [2024-10-31 22:00:15,497 INFO L140 encePairwiseOnDemand]: 585/589 looper letters, 13 selfloop transitions, 2 changer transitions 0/530 dead transitions. [2024-10-31 22:00:15,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 530 transitions, 1108 flow [2024-10-31 22:00:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:15,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:15,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1673 transitions. [2024-10-31 22:00:15,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468024900962083 [2024-10-31 22:00:15,503 INFO L175 Difference]: Start difference. First operand has 524 places, 528 transitions, 1072 flow. Second operand 3 states and 1673 transitions. [2024-10-31 22:00:15,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 530 transitions, 1108 flow [2024-10-31 22:00:15,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 530 transitions, 1108 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:15,517 INFO L231 Difference]: Finished difference. Result has 525 places, 528 transitions, 1082 flow [2024-10-31 22:00:15,518 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=525, PETRI_TRANSITIONS=528} [2024-10-31 22:00:15,519 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -20 predicate places. [2024-10-31 22:00:15,520 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 528 transitions, 1082 flow [2024-10-31 22:00:15,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:00:15,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:15,522 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 22:00:15,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:00:15,522 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:15,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:15,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2007253713, now seen corresponding path program 1 times [2024-10-31 22:00:15,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:15,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751678308] [2024-10-31 22:00:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:15,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:15,604 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 22:00:15,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751678308] [2024-10-31 22:00:15,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751678308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:15,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:15,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:15,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426124531] [2024-10-31 22:00:15,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:15,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:15,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:15,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:15,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:15,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 549 out of 589 [2024-10-31 22:00:15,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 528 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 550.3333333333334) internal successors, (1651), 3 states have internal predecessors, (1651), 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 22:00:15,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:15,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 549 of 589 [2024-10-31 22:00:15,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:16,058 INFO L124 PetriNetUnfolderBase]: 39/1108 cut-off events. [2024-10-31 22:00:16,058 INFO L125 PetriNetUnfolderBase]: For 2/14 co-relation queries the response was YES. [2024-10-31 22:00:16,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 1108 events. 39/1108 cut-off events. For 2/14 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5604 event pairs, 12 based on Foata normal form. 1/971 useless extension candidates. Maximal degree in co-relation 891. Up to 38 conditions per place. [2024-10-31 22:00:16,087 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 15 selfloop transitions, 2 changer transitions 0/529 dead transitions. [2024-10-31 22:00:16,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 529 transitions, 1120 flow [2024-10-31 22:00:16,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:16,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2024-10-31 22:00:16,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9422750424448217 [2024-10-31 22:00:16,094 INFO L175 Difference]: Start difference. First operand has 525 places, 528 transitions, 1082 flow. Second operand 3 states and 1665 transitions. [2024-10-31 22:00:16,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 529 transitions, 1120 flow [2024-10-31 22:00:16,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 529 transitions, 1120 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:16,107 INFO L231 Difference]: Finished difference. Result has 526 places, 527 transitions, 1084 flow [2024-10-31 22:00:16,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=526, PETRI_TRANSITIONS=527} [2024-10-31 22:00:16,110 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -19 predicate places. [2024-10-31 22:00:16,111 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 527 transitions, 1084 flow [2024-10-31 22:00:16,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 550.3333333333334) internal successors, (1651), 3 states have internal predecessors, (1651), 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 22:00:16,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:16,113 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] [2024-10-31 22:00:16,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:00:16,113 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:16,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:16,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1969250575, now seen corresponding path program 1 times [2024-10-31 22:00:16,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:16,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462644357] [2024-10-31 22:00:16,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:16,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:16,234 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 22:00:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:16,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462644357] [2024-10-31 22:00:16,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462644357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:16,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:16,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:16,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618238678] [2024-10-31 22:00:16,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:16,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:16,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:16,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:16,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:16,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 552 out of 589 [2024-10-31 22:00:16,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 527 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 3 states have internal predecessors, (1661), 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 22:00:16,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:16,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 552 of 589 [2024-10-31 22:00:16,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:17,006 INFO L124 PetriNetUnfolderBase]: 77/2149 cut-off events. [2024-10-31 22:00:17,007 INFO L125 PetriNetUnfolderBase]: For 13/17 co-relation queries the response was YES. [2024-10-31 22:00:17,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2246 conditions, 2149 events. 77/2149 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 15002 event pairs, 16 based on Foata normal form. 0/1857 useless extension candidates. Maximal degree in co-relation 1651. Up to 66 conditions per place. [2024-10-31 22:00:17,051 INFO L140 encePairwiseOnDemand]: 585/589 looper letters, 13 selfloop transitions, 2 changer transitions 0/529 dead transitions. [2024-10-31 22:00:17,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 529 transitions, 1120 flow [2024-10-31 22:00:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:17,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1673 transitions. [2024-10-31 22:00:17,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468024900962083 [2024-10-31 22:00:17,057 INFO L175 Difference]: Start difference. First operand has 526 places, 527 transitions, 1084 flow. Second operand 3 states and 1673 transitions. [2024-10-31 22:00:17,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 529 transitions, 1120 flow [2024-10-31 22:00:17,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 529 transitions, 1116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:17,070 INFO L231 Difference]: Finished difference. Result has 525 places, 527 transitions, 1090 flow [2024-10-31 22:00:17,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1090, PETRI_PLACES=525, PETRI_TRANSITIONS=527} [2024-10-31 22:00:17,073 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -20 predicate places. [2024-10-31 22:00:17,074 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 527 transitions, 1090 flow [2024-10-31 22:00:17,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 3 states have internal predecessors, (1661), 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 22:00:17,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:17,075 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] [2024-10-31 22:00:17,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:00:17,077 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:17,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,077 INFO L85 PathProgramCache]: Analyzing trace with hash 21472046, now seen corresponding path program 1 times [2024-10-31 22:00:17,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338581875] [2024-10-31 22:00:17,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,200 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 22:00:17,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:17,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338581875] [2024-10-31 22:00:17,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338581875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:17,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:17,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:17,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675425861] [2024-10-31 22:00:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:17,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:17,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:17,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:17,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 552 out of 589 [2024-10-31 22:00:17,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 527 transitions, 1090 flow. Second operand has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:00:17,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:17,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 552 of 589 [2024-10-31 22:00:17,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:17,897 INFO L124 PetriNetUnfolderBase]: 77/1945 cut-off events. [2024-10-31 22:00:17,897 INFO L125 PetriNetUnfolderBase]: For 7/11 co-relation queries the response was YES. [2024-10-31 22:00:17,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 1945 events. 77/1945 cut-off events. For 7/11 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 12822 event pairs, 4 based on Foata normal form. 1/1687 useless extension candidates. Maximal degree in co-relation 1564. Up to 69 conditions per place. [2024-10-31 22:00:17,946 INFO L140 encePairwiseOnDemand]: 585/589 looper letters, 16 selfloop transitions, 2 changer transitions 0/532 dead transitions. [2024-10-31 22:00:17,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 532 transitions, 1141 flow [2024-10-31 22:00:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:17,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1676 transitions. [2024-10-31 22:00:17,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9485002829654782 [2024-10-31 22:00:17,950 INFO L175 Difference]: Start difference. First operand has 525 places, 527 transitions, 1090 flow. Second operand 3 states and 1676 transitions. [2024-10-31 22:00:17,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 532 transitions, 1141 flow [2024-10-31 22:00:17,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 532 transitions, 1141 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:17,960 INFO L231 Difference]: Finished difference. Result has 526 places, 527 transitions, 1100 flow [2024-10-31 22:00:17,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=526, PETRI_TRANSITIONS=527} [2024-10-31 22:00:17,963 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -19 predicate places. [2024-10-31 22:00:17,964 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 527 transitions, 1100 flow [2024-10-31 22:00:17,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:00:17,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:17,965 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] [2024-10-31 22:00:17,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:00:17,966 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:17,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 665665593, now seen corresponding path program 1 times [2024-10-31 22:00:17,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612260037] [2024-10-31 22:00:17,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:18,032 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 22:00:18,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:18,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612260037] [2024-10-31 22:00:18,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612260037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:18,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:18,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:18,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424260725] [2024-10-31 22:00:18,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:18,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:18,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:18,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:18,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:18,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 547 out of 589 [2024-10-31 22:00:18,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 527 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 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 22:00:18,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:18,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 547 of 589 [2024-10-31 22:00:18,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:18,771 INFO L124 PetriNetUnfolderBase]: 90/2599 cut-off events. [2024-10-31 22:00:18,772 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-31 22:00:18,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2789 conditions, 2599 events. 90/2599 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 17764 event pairs, 10 based on Foata normal form. 0/2265 useless extension candidates. Maximal degree in co-relation 2373. Up to 40 conditions per place. [2024-10-31 22:00:18,834 INFO L140 encePairwiseOnDemand]: 581/589 looper letters, 15 selfloop transitions, 5 changer transitions 0/529 dead transitions. [2024-10-31 22:00:18,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 529 transitions, 1146 flow [2024-10-31 22:00:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2024-10-31 22:00:18,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9417091114883984 [2024-10-31 22:00:18,838 INFO L175 Difference]: Start difference. First operand has 526 places, 527 transitions, 1100 flow. Second operand 3 states and 1664 transitions. [2024-10-31 22:00:18,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 529 transitions, 1146 flow [2024-10-31 22:00:18,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 529 transitions, 1146 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:18,848 INFO L231 Difference]: Finished difference. Result has 527 places, 527 transitions, 1126 flow [2024-10-31 22:00:18,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=527, PETRI_TRANSITIONS=527} [2024-10-31 22:00:18,850 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -18 predicate places. [2024-10-31 22:00:18,850 INFO L471 AbstractCegarLoop]: Abstraction has has 527 places, 527 transitions, 1126 flow [2024-10-31 22:00:18,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 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 22:00:18,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:18,852 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] [2024-10-31 22:00:18,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:00:18,853 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:18,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash -852237650, now seen corresponding path program 1 times [2024-10-31 22:00:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:18,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392957240] [2024-10-31 22:00:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:18,934 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 22:00:18,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:18,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392957240] [2024-10-31 22:00:18,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392957240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:18,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:18,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:18,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857744085] [2024-10-31 22:00:18,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:18,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:18,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:18,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:18,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:18,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 548 out of 589 [2024-10-31 22:00:18,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 527 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 3 states have internal predecessors, (1649), 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 22:00:18,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:18,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 548 of 589 [2024-10-31 22:00:18,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:19,514 INFO L124 PetriNetUnfolderBase]: 104/2074 cut-off events. [2024-10-31 22:00:19,514 INFO L125 PetriNetUnfolderBase]: For 31/63 co-relation queries the response was YES. [2024-10-31 22:00:19,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2326 conditions, 2074 events. 104/2074 cut-off events. For 31/63 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 13927 event pairs, 36 based on Foata normal form. 1/1806 useless extension candidates. Maximal degree in co-relation 1940. Up to 112 conditions per place. [2024-10-31 22:00:19,553 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 16 selfloop transitions, 2 changer transitions 0/528 dead transitions. [2024-10-31 22:00:19,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 528 transitions, 1166 flow [2024-10-31 22:00:19,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1663 transitions. [2024-10-31 22:00:19,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9411431805319751 [2024-10-31 22:00:19,557 INFO L175 Difference]: Start difference. First operand has 527 places, 527 transitions, 1126 flow. Second operand 3 states and 1663 transitions. [2024-10-31 22:00:19,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 528 transitions, 1166 flow [2024-10-31 22:00:19,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 528 transitions, 1156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:19,566 INFO L231 Difference]: Finished difference. Result has 526 places, 526 transitions, 1118 flow [2024-10-31 22:00:19,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=526, PETRI_TRANSITIONS=526} [2024-10-31 22:00:19,568 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -19 predicate places. [2024-10-31 22:00:19,568 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 526 transitions, 1118 flow [2024-10-31 22:00:19,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 3 states have internal predecessors, (1649), 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 22:00:19,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:19,570 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] [2024-10-31 22:00:19,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:00:19,570 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:19,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:19,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1010636245, now seen corresponding path program 1 times [2024-10-31 22:00:19,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:19,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530164681] [2024-10-31 22:00:19,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:19,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:19,665 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 22:00:19,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:19,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530164681] [2024-10-31 22:00:19,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530164681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:19,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:19,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:00:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499542205] [2024-10-31 22:00:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:19,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:19,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:19,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:19,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 551 out of 589 [2024-10-31 22:00:19,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 526 transitions, 1118 flow. Second operand has 4 states, 4 states have (on average 552.25) internal successors, (2209), 4 states have internal predecessors, (2209), 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 22:00:19,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:19,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 551 of 589 [2024-10-31 22:00:19,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:20,680 INFO L124 PetriNetUnfolderBase]: 99/3208 cut-off events. [2024-10-31 22:00:20,681 INFO L125 PetriNetUnfolderBase]: For 9/43 co-relation queries the response was YES. [2024-10-31 22:00:20,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3478 conditions, 3208 events. 99/3208 cut-off events. For 9/43 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 22079 event pairs, 15 based on Foata normal form. 4/2801 useless extension candidates. Maximal degree in co-relation 3059. Up to 50 conditions per place. [2024-10-31 22:00:20,756 INFO L140 encePairwiseOnDemand]: 584/589 looper letters, 27 selfloop transitions, 4 changer transitions 0/542 dead transitions. [2024-10-31 22:00:20,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 542 transitions, 1222 flow [2024-10-31 22:00:20,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:00:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2787 transitions. [2024-10-31 22:00:20,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9463497453310696 [2024-10-31 22:00:20,762 INFO L175 Difference]: Start difference. First operand has 526 places, 526 transitions, 1118 flow. Second operand 5 states and 2787 transitions. [2024-10-31 22:00:20,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 542 transitions, 1222 flow [2024-10-31 22:00:20,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 542 transitions, 1218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:20,772 INFO L231 Difference]: Finished difference. Result has 531 places, 528 transitions, 1139 flow [2024-10-31 22:00:20,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1139, PETRI_PLACES=531, PETRI_TRANSITIONS=528} [2024-10-31 22:00:20,774 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -14 predicate places. [2024-10-31 22:00:20,774 INFO L471 AbstractCegarLoop]: Abstraction has has 531 places, 528 transitions, 1139 flow [2024-10-31 22:00:20,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 552.25) internal successors, (2209), 4 states have internal predecessors, (2209), 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 22:00:20,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:20,776 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] [2024-10-31 22:00:20,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:00:20,776 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:20,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2101153416, now seen corresponding path program 1 times [2024-10-31 22:00:20,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:20,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392276439] [2024-10-31 22:00:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:20,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,846 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 22:00:20,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:20,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392276439] [2024-10-31 22:00:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392276439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:20,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265799713] [2024-10-31 22:00:20,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:20,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:20,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:20,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 549 out of 589 [2024-10-31 22:00:20,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 528 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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 22:00:20,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:20,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 549 of 589 [2024-10-31 22:00:20,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:22,040 INFO L124 PetriNetUnfolderBase]: 142/4425 cut-off events. [2024-10-31 22:00:22,041 INFO L125 PetriNetUnfolderBase]: For 43/90 co-relation queries the response was YES. [2024-10-31 22:00:22,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4796 conditions, 4425 events. 142/4425 cut-off events. For 43/90 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 35259 event pairs, 28 based on Foata normal form. 7/3863 useless extension candidates. Maximal degree in co-relation 4377. Up to 95 conditions per place. [2024-10-31 22:00:22,152 INFO L140 encePairwiseOnDemand]: 586/589 looper letters, 17 selfloop transitions, 2 changer transitions 0/529 dead transitions. [2024-10-31 22:00:22,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 529 transitions, 1181 flow [2024-10-31 22:00:22,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:22,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2024-10-31 22:00:22,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9422750424448217 [2024-10-31 22:00:22,156 INFO L175 Difference]: Start difference. First operand has 531 places, 528 transitions, 1139 flow. Second operand 3 states and 1665 transitions. [2024-10-31 22:00:22,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 529 transitions, 1181 flow [2024-10-31 22:00:22,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 529 transitions, 1181 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:22,167 INFO L231 Difference]: Finished difference. Result has 532 places, 527 transitions, 1141 flow [2024-10-31 22:00:22,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1141, PETRI_PLACES=532, PETRI_TRANSITIONS=527} [2024-10-31 22:00:22,169 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -13 predicate places. [2024-10-31 22:00:22,169 INFO L471 AbstractCegarLoop]: Abstraction has has 532 places, 527 transitions, 1141 flow [2024-10-31 22:00:22,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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 22:00:22,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:22,170 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] [2024-10-31 22:00:22,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:00:22,171 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:22,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:22,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1312894679, now seen corresponding path program 1 times [2024-10-31 22:00:22,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:22,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717814090] [2024-10-31 22:00:22,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:22,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:22,307 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 22:00:22,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:22,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717814090] [2024-10-31 22:00:22,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717814090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:22,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:22,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:22,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555487415] [2024-10-31 22:00:22,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:22,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:22,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:22,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:22,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:22,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 532 out of 589 [2024-10-31 22:00:22,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 527 transitions, 1141 flow. Second operand has 5 states, 5 states have (on average 537.0) internal successors, (2685), 5 states have internal predecessors, (2685), 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 22:00:22,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:22,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 532 of 589 [2024-10-31 22:00:22,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:22,972 INFO L124 PetriNetUnfolderBase]: 33/1365 cut-off events. [2024-10-31 22:00:22,972 INFO L125 PetriNetUnfolderBase]: For 11/25 co-relation queries the response was YES. [2024-10-31 22:00:22,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 1365 events. 33/1365 cut-off events. For 11/25 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6531 event pairs, 1 based on Foata normal form. 3/1218 useless extension candidates. Maximal degree in co-relation 1368. Up to 20 conditions per place. [2024-10-31 22:00:22,995 INFO L140 encePairwiseOnDemand]: 568/589 looper letters, 18 selfloop transitions, 18 changer transitions 0/530 dead transitions. [2024-10-31 22:00:22,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 530 transitions, 1219 flow [2024-10-31 22:00:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:22,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:00:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2699 transitions. [2024-10-31 22:00:23,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9164685908319186 [2024-10-31 22:00:23,001 INFO L175 Difference]: Start difference. First operand has 532 places, 527 transitions, 1141 flow. Second operand 5 states and 2699 transitions. [2024-10-31 22:00:23,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 530 transitions, 1219 flow [2024-10-31 22:00:23,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 530 transitions, 1215 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:23,011 INFO L231 Difference]: Finished difference. Result has 535 places, 530 transitions, 1197 flow [2024-10-31 22:00:23,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1197, PETRI_PLACES=535, PETRI_TRANSITIONS=530} [2024-10-31 22:00:23,012 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, -10 predicate places. [2024-10-31 22:00:23,012 INFO L471 AbstractCegarLoop]: Abstraction has has 535 places, 530 transitions, 1197 flow [2024-10-31 22:00:23,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 537.0) internal successors, (2685), 5 states have internal predecessors, (2685), 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 22:00:23,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:23,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:23,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:00:23,015 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:23,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash 386569357, now seen corresponding path program 1 times [2024-10-31 22:00:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:23,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719620170] [2024-10-31 22:00:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:23,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:00:23,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:23,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719620170] [2024-10-31 22:00:23,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719620170] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:23,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937570465] [2024-10-31 22:00:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:23,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:23,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:23,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:23,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:23,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:23,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:00:23,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:00:23,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937570465] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:23,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:23,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-10-31 22:00:23,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014132841] [2024-10-31 22:00:23,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:23,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:00:23,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:23,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:23,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:24,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 523 out of 589 [2024-10-31 22:00:24,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 530 transitions, 1197 flow. Second operand has 15 states, 15 states have (on average 526.4666666666667) internal successors, (7897), 15 states have internal predecessors, (7897), 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 22:00:24,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:24,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 523 of 589 [2024-10-31 22:00:24,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:25,306 INFO L124 PetriNetUnfolderBase]: 33/1416 cut-off events. [2024-10-31 22:00:25,306 INFO L125 PetriNetUnfolderBase]: For 23/37 co-relation queries the response was YES. [2024-10-31 22:00:25,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 1416 events. 33/1416 cut-off events. For 23/37 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6420 event pairs, 1 based on Foata normal form. 6/1272 useless extension candidates. Maximal degree in co-relation 1480. Up to 20 conditions per place. [2024-10-31 22:00:25,334 INFO L140 encePairwiseOnDemand]: 559/589 looper letters, 30 selfloop transitions, 39 changer transitions 0/554 dead transitions. [2024-10-31 22:00:25,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 554 transitions, 1389 flow [2024-10-31 22:00:25,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:00:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:00:25,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5828 transitions. [2024-10-31 22:00:25,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8995215311004785 [2024-10-31 22:00:25,343 INFO L175 Difference]: Start difference. First operand has 535 places, 530 transitions, 1197 flow. Second operand 11 states and 5828 transitions. [2024-10-31 22:00:25,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 554 transitions, 1389 flow [2024-10-31 22:00:25,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 554 transitions, 1359 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:00:25,354 INFO L231 Difference]: Finished difference. Result has 545 places, 548 transitions, 1347 flow [2024-10-31 22:00:25,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1167, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1347, PETRI_PLACES=545, PETRI_TRANSITIONS=548} [2024-10-31 22:00:25,355 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, 0 predicate places. [2024-10-31 22:00:25,356 INFO L471 AbstractCegarLoop]: Abstraction has has 545 places, 548 transitions, 1347 flow [2024-10-31 22:00:25,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 526.4666666666667) internal successors, (7897), 15 states have internal predecessors, (7897), 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 22:00:25,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:25,359 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:25,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:00:25,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 22:00:25,559 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:00:25,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:25,560 INFO L85 PathProgramCache]: Analyzing trace with hash 58646157, now seen corresponding path program 2 times [2024-10-31 22:00:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:25,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563400455] [2024-10-31 22:00:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:25,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-31 22:00:26,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:26,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563400455] [2024-10-31 22:00:26,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563400455] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:26,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790076701] [2024-10-31 22:00:26,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:26,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:26,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:26,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:26,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:26,388 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:00:26,388 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:26,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:00:26,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:26,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-31 22:00:26,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-31 22:00:26,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:00:26,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-31 22:00:26,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:00:26,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-31 22:00:26,638 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-31 22:00:26,639 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:26,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790076701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:26,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:26,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-10-31 22:00:26,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491629209] [2024-10-31 22:00:26,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:26,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:27,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 537 out of 589 [2024-10-31 22:00:27,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 548 transitions, 1347 flow. Second operand has 6 states, 6 states have (on average 540.5) internal successors, (3243), 6 states have internal predecessors, (3243), 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 22:00:27,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:27,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 537 of 589 [2024-10-31 22:00:27,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:28,313 INFO L124 PetriNetUnfolderBase]: 77/2316 cut-off events. [2024-10-31 22:00:28,313 INFO L125 PetriNetUnfolderBase]: For 50/92 co-relation queries the response was YES. [2024-10-31 22:00:28,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2705 conditions, 2316 events. 77/2316 cut-off events. For 50/92 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 14073 event pairs, 5 based on Foata normal form. 8/2072 useless extension candidates. Maximal degree in co-relation 2564. Up to 70 conditions per place. [2024-10-31 22:00:28,371 INFO L140 encePairwiseOnDemand]: 583/589 looper letters, 30 selfloop transitions, 6 changer transitions 0/555 dead transitions. [2024-10-31 22:00:28,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 555 transitions, 1441 flow [2024-10-31 22:00:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3258 transitions. [2024-10-31 22:00:28,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9219015280135824 [2024-10-31 22:00:28,381 INFO L175 Difference]: Start difference. First operand has 545 places, 548 transitions, 1347 flow. Second operand 6 states and 3258 transitions. [2024-10-31 22:00:28,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 555 transitions, 1441 flow [2024-10-31 22:00:28,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 555 transitions, 1405 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-31 22:00:28,394 INFO L231 Difference]: Finished difference. Result has 546 places, 547 transitions, 1321 flow [2024-10-31 22:00:28,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=589, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1321, PETRI_PLACES=546, PETRI_TRANSITIONS=547} [2024-10-31 22:00:28,395 INFO L277 CegarLoopForPetriNet]: 545 programPoint places, 1 predicate places. [2024-10-31 22:00:28,396 INFO L471 AbstractCegarLoop]: Abstraction has has 546 places, 547 transitions, 1321 flow [2024-10-31 22:00:28,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 540.5) internal successors, (3243), 6 states have internal predecessors, (3243), 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 22:00:28,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:28,398 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:28,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b66e365a-aed3-402b-87f8-9c45894bcebb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0