./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx --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 af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:32,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:32,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:00:32,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:32,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:32,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:32,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:32,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:32,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:32,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:32,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:32,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:32,424 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:32,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:32,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:32,426 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:00:32,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:32,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:00:32,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:32,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:32,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:32,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:32,430 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:00:32,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:00:32,431 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:00:32,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:32,432 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:32,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:32,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:32,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:32,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:32,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:32,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:32,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:32,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:32,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:00:32,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:32,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:32,437 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:32,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:32,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:32,438 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_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 [2023-11-21 21:00:32,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:32,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:32,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:32,734 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:32,735 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:32,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2023-11-21 21:00:35,851 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:36,076 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:36,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2023-11-21 21:00:36,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/data/6d5235539/c588291c962b4cb68632d524a398a349/FLAG22bd5d368 [2023-11-21 21:00:36,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/data/6d5235539/c588291c962b4cb68632d524a398a349 [2023-11-21 21:00:36,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:36,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:36,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:36,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:36,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:36,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ac079f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36, skipping insertion in model container [2023-11-21 21:00:36,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:36,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:36,374 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:36,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:36,472 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:36,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36 WrapperNode [2023-11-21 21:00:36,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:36,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:36,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:36,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:36,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,561 INFO L138 Inliner]: procedures = 20, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2023-11-21 21:00:36,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:36,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:36,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:36,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:36,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:36,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:36,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:36,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:36,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (1/1) ... [2023-11-21 21:00:36,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:36,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:36,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:36,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a97e8f-cb57-4cdc-ad91-8ca7c311e1f4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 21:00:36,758 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 21:00:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 21:00:36,758 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 21:00:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 21:00:36,759 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 21:00:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-21 21:00:36,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-21 21:00:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:00:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:00:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:00:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:36,766 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 21:00:36,941 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:36,949 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:37,768 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:37,795 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:37,795 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 21:00:37,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:37 BoogieIcfgContainer [2023-11-21 21:00:37,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:37,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:37,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:37,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:37,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:36" (1/3) ... [2023-11-21 21:00:37,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fdd517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:37, skipping insertion in model container [2023-11-21 21:00:37,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:36" (2/3) ... [2023-11-21 21:00:37,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fdd517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:37, skipping insertion in model container [2023-11-21 21:00:37,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:37" (3/3) ... [2023-11-21 21:00:37,808 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2023-11-21 21:00:37,817 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:00:37,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:37,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2023-11-21 21:00:37,829 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:00:38,002 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-21 21:00:38,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 587 transitions, 1202 flow [2023-11-21 21:00:38,448 INFO L124 PetriNetUnfolderBase]: 14/583 cut-off events. [2023-11-21 21:00:38,449 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 21:00:38,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 583 events. 14/583 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1923 event pairs, 0 based on Foata normal form. 0/458 useless extension candidates. Maximal degree in co-relation 423. Up to 2 conditions per place. [2023-11-21 21:00:38,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 587 transitions, 1202 flow [2023-11-21 21:00:38,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 556 places, 555 transitions, 1134 flow [2023-11-21 21:00:38,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:38,527 INFO L357 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, mHoare=true, 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;@7ba0bc56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:38,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 207 error locations. [2023-11-21 21:00:38,533 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:00:38,534 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-21 21:00:38,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:00:38,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:38,535 INFO L208 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] [2023-11-21 21:00:38,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:38,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2134399332, now seen corresponding path program 1 times [2023-11-21 21:00:38,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:38,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506347155] [2023-11-21 21:00:38,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:38,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:38,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:38,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506347155] [2023-11-21 21:00:38,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506347155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:38,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:38,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:38,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189903438] [2023-11-21 21:00:38,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:38,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:38,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:38,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:38,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:39,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 587 [2023-11-21 21:00:39,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 555 transitions, 1134 flow. Second operand has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-21 21:00:39,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:39,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 587 [2023-11-21 21:00:39,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:39,584 INFO L124 PetriNetUnfolderBase]: 76/900 cut-off events. [2023-11-21 21:00:39,584 INFO L125 PetriNetUnfolderBase]: For 82/84 co-relation queries the response was YES. [2023-11-21 21:00:39,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 900 events. 76/900 cut-off events. For 82/84 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4989 event pairs, 66 based on Foata normal form. 145/853 useless extension candidates. Maximal degree in co-relation 1056. Up to 172 conditions per place. [2023-11-21 21:00:39,636 INFO L140 encePairwiseOnDemand]: 579/587 looper letters, 36 selfloop transitions, 2 changer transitions 1/549 dead transitions. [2023-11-21 21:00:39,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 549 transitions, 1198 flow [2023-11-21 21:00:39,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:39,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:39,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2023-11-21 21:00:39,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9449176604202157 [2023-11-21 21:00:39,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1664 transitions. [2023-11-21 21:00:39,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1664 transitions. [2023-11-21 21:00:39,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:39,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1664 transitions. [2023-11-21 21:00:39,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 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) [2023-11-21 21:00:39,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:39,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:39,690 INFO L175 Difference]: Start difference. First operand has 556 places, 555 transitions, 1134 flow. Second operand 3 states and 1664 transitions. [2023-11-21 21:00:39,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 549 transitions, 1198 flow [2023-11-21 21:00:39,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 549 transitions, 1182 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-21 21:00:39,713 INFO L231 Difference]: Finished difference. Result has 549 places, 548 transitions, 1108 flow [2023-11-21 21:00:39,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=549, PETRI_TRANSITIONS=548} [2023-11-21 21:00:39,720 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -7 predicate places. [2023-11-21 21:00:39,720 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 548 transitions, 1108 flow [2023-11-21 21:00:39,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-21 21:00:39,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:39,722 INFO L208 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] [2023-11-21 21:00:39,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:00:39,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:39,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash -570196397, now seen corresponding path program 1 times [2023-11-21 21:00:39,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:39,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637908439] [2023-11-21 21:00:39,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:39,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:39,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637908439] [2023-11-21 21:00:39,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637908439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:39,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:39,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:39,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722564324] [2023-11-21 21:00:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:39,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:39,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:39,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:39,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 541 out of 587 [2023-11-21 21:00:39,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 548 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-21 21:00:39,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:39,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 541 of 587 [2023-11-21 21:00:39,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:40,430 INFO L124 PetriNetUnfolderBase]: 76/898 cut-off events. [2023-11-21 21:00:40,431 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-21 21:00:40,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 898 events. 76/898 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5328 event pairs, 66 based on Foata normal form. 0/707 useless extension candidates. Maximal degree in co-relation 1093. Up to 171 conditions per place. [2023-11-21 21:00:40,490 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 35 selfloop transitions, 2 changer transitions 0/547 dead transitions. [2023-11-21 21:00:40,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 547 transitions, 1180 flow [2023-11-21 21:00:40,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:40,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1661 transitions. [2023-11-21 21:00:40,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432140829074389 [2023-11-21 21:00:40,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1661 transitions. [2023-11-21 21:00:40,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1661 transitions. [2023-11-21 21:00:40,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:40,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1661 transitions. [2023-11-21 21:00:40,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-21 21:00:40,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:40,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:40,514 INFO L175 Difference]: Start difference. First operand has 549 places, 548 transitions, 1108 flow. Second operand 3 states and 1661 transitions. [2023-11-21 21:00:40,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 547 transitions, 1180 flow [2023-11-21 21:00:40,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 547 transitions, 1176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:40,528 INFO L231 Difference]: Finished difference. Result has 547 places, 547 transitions, 1106 flow [2023-11-21 21:00:40,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1106, PETRI_PLACES=547, PETRI_TRANSITIONS=547} [2023-11-21 21:00:40,530 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -9 predicate places. [2023-11-21 21:00:40,531 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 547 transitions, 1106 flow [2023-11-21 21:00:40,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-21 21:00:40,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:40,537 INFO L208 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] [2023-11-21 21:00:40,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:00:40,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:40,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash 772372103, now seen corresponding path program 1 times [2023-11-21 21:00:40,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:40,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410355732] [2023-11-21 21:00:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:40,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:40,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:40,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410355732] [2023-11-21 21:00:40,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410355732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:40,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:40,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:40,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283390250] [2023-11-21 21:00:40,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:40,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:40,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:40,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:40,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:40,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 587 [2023-11-21 21:00:40,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 547 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-21 21:00:40,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:40,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 587 [2023-11-21 21:00:40,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:41,210 INFO L124 PetriNetUnfolderBase]: 76/897 cut-off events. [2023-11-21 21:00:41,211 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-21 21:00:41,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 897 events. 76/897 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5396 event pairs, 66 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 1064. Up to 172 conditions per place. [2023-11-21 21:00:41,268 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/546 dead transitions. [2023-11-21 21:00:41,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 546 transitions, 1180 flow [2023-11-21 21:00:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:41,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1659 transitions. [2023-11-21 21:00:41,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9420783645655877 [2023-11-21 21:00:41,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1659 transitions. [2023-11-21 21:00:41,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1659 transitions. [2023-11-21 21:00:41,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:41,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1659 transitions. [2023-11-21 21:00:41,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 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) [2023-11-21 21:00:41,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:41,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:41,290 INFO L175 Difference]: Start difference. First operand has 547 places, 547 transitions, 1106 flow. Second operand 3 states and 1659 transitions. [2023-11-21 21:00:41,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 546 transitions, 1180 flow [2023-11-21 21:00:41,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 546 transitions, 1176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:41,304 INFO L231 Difference]: Finished difference. Result has 546 places, 546 transitions, 1104 flow [2023-11-21 21:00:41,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=546, PETRI_TRANSITIONS=546} [2023-11-21 21:00:41,308 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -10 predicate places. [2023-11-21 21:00:41,309 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 546 transitions, 1104 flow [2023-11-21 21:00:41,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-21 21:00:41,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:41,311 INFO L208 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] [2023-11-21 21:00:41,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:00:41,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:41,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1297497789, now seen corresponding path program 1 times [2023-11-21 21:00:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831847609] [2023-11-21 21:00:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:41,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:41,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:41,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831847609] [2023-11-21 21:00:41,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831847609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:41,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:41,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447036320] [2023-11-21 21:00:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:41,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:41,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 541 out of 587 [2023-11-21 21:00:41,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 546 transitions, 1104 flow. Second operand has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-21 21:00:41,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:41,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 541 of 587 [2023-11-21 21:00:41,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:41,963 INFO L124 PetriNetUnfolderBase]: 76/896 cut-off events. [2023-11-21 21:00:41,964 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-21 21:00:41,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 896 events. 76/896 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5337 event pairs, 66 based on Foata normal form. 0/705 useless extension candidates. Maximal degree in co-relation 1033. Up to 171 conditions per place. [2023-11-21 21:00:42,008 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 35 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2023-11-21 21:00:42,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 545 transitions, 1176 flow [2023-11-21 21:00:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1661 transitions. [2023-11-21 21:00:42,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432140829074389 [2023-11-21 21:00:42,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1661 transitions. [2023-11-21 21:00:42,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1661 transitions. [2023-11-21 21:00:42,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:42,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1661 transitions. [2023-11-21 21:00:42,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-21 21:00:42,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:42,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:42,031 INFO L175 Difference]: Start difference. First operand has 546 places, 546 transitions, 1104 flow. Second operand 3 states and 1661 transitions. [2023-11-21 21:00:42,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 545 transitions, 1176 flow [2023-11-21 21:00:42,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 545 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:42,046 INFO L231 Difference]: Finished difference. Result has 545 places, 545 transitions, 1102 flow [2023-11-21 21:00:42,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1102, PETRI_PLACES=545, PETRI_TRANSITIONS=545} [2023-11-21 21:00:42,049 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -11 predicate places. [2023-11-21 21:00:42,049 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 545 transitions, 1102 flow [2023-11-21 21:00:42,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-21 21:00:42,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:42,051 INFO L208 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] [2023-11-21 21:00:42,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:00:42,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:42,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1038763546, now seen corresponding path program 1 times [2023-11-21 21:00:42,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:42,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835631730] [2023-11-21 21:00:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:42,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:42,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:42,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:42,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835631730] [2023-11-21 21:00:42,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835631730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:42,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:42,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:42,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736212070] [2023-11-21 21:00:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:42,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:42,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:42,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:42,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:42,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 587 [2023-11-21 21:00:42,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 545 transitions, 1102 flow. Second operand has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 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) [2023-11-21 21:00:42,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:42,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 587 [2023-11-21 21:00:42,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:43,282 INFO L124 PetriNetUnfolderBase]: 102/3486 cut-off events. [2023-11-21 21:00:43,283 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2023-11-21 21:00:43,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3651 conditions, 3486 events. 102/3486 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 31363 event pairs, 51 based on Foata normal form. 0/2629 useless extension candidates. Maximal degree in co-relation 3600. Up to 144 conditions per place. [2023-11-21 21:00:43,401 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 15 selfloop transitions, 2 changer transitions 0/544 dead transitions. [2023-11-21 21:00:43,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 544 transitions, 1134 flow [2023-11-21 21:00:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:43,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1701 transitions. [2023-11-21 21:00:43,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9659284497444633 [2023-11-21 21:00:43,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1701 transitions. [2023-11-21 21:00:43,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1701 transitions. [2023-11-21 21:00:43,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:43,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1701 transitions. [2023-11-21 21:00:43,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 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) [2023-11-21 21:00:43,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:43,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:43,424 INFO L175 Difference]: Start difference. First operand has 545 places, 545 transitions, 1102 flow. Second operand 3 states and 1701 transitions. [2023-11-21 21:00:43,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 544 transitions, 1134 flow [2023-11-21 21:00:43,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 544 transitions, 1130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:43,439 INFO L231 Difference]: Finished difference. Result has 544 places, 544 transitions, 1100 flow [2023-11-21 21:00:43,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=544, PETRI_TRANSITIONS=544} [2023-11-21 21:00:43,443 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -12 predicate places. [2023-11-21 21:00:43,443 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 544 transitions, 1100 flow [2023-11-21 21:00:43,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 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) [2023-11-21 21:00:43,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:43,445 INFO L208 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] [2023-11-21 21:00:43,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:00:43,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:43,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash 379827550, now seen corresponding path program 1 times [2023-11-21 21:00:43,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:43,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300919956] [2023-11-21 21:00:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:43,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:43,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:43,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300919956] [2023-11-21 21:00:43,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300919956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:43,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:43,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:43,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103357925] [2023-11-21 21:00:43,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:43,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:43,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:43,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:43,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:43,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 587 [2023-11-21 21:00:43,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 544 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-21 21:00:43,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:43,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 587 [2023-11-21 21:00:43,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:44,013 INFO L124 PetriNetUnfolderBase]: 121/878 cut-off events. [2023-11-21 21:00:44,014 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-11-21 21:00:44,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 878 events. 121/878 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5173 event pairs, 90 based on Foata normal form. 0/751 useless extension candidates. Maximal degree in co-relation 1218. Up to 228 conditions per place. [2023-11-21 21:00:44,056 INFO L140 encePairwiseOnDemand]: 554/587 looper letters, 41 selfloop transitions, 15 changer transitions 0/530 dead transitions. [2023-11-21 21:00:44,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 530 transitions, 1187 flow [2023-11-21 21:00:44,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:44,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1604 transitions. [2023-11-21 21:00:44,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9108461101646792 [2023-11-21 21:00:44,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1604 transitions. [2023-11-21 21:00:44,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1604 transitions. [2023-11-21 21:00:44,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:44,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1604 transitions. [2023-11-21 21:00:44,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.6666666666666) internal successors, (1604), 3 states have internal predecessors, (1604), 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) [2023-11-21 21:00:44,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:44,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:44,077 INFO L175 Difference]: Start difference. First operand has 544 places, 544 transitions, 1100 flow. Second operand 3 states and 1604 transitions. [2023-11-21 21:00:44,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 530 transitions, 1187 flow [2023-11-21 21:00:44,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 530 transitions, 1183 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:44,092 INFO L231 Difference]: Finished difference. Result has 527 places, 527 transitions, 1109 flow [2023-11-21 21:00:44,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=527, PETRI_TRANSITIONS=527} [2023-11-21 21:00:44,097 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -29 predicate places. [2023-11-21 21:00:44,097 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 527 transitions, 1109 flow [2023-11-21 21:00:44,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-21 21:00:44,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:44,100 INFO L208 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] [2023-11-21 21:00:44,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:00:44,100 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:44,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:44,101 INFO L85 PathProgramCache]: Analyzing trace with hash -57904542, now seen corresponding path program 1 times [2023-11-21 21:00:44,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579015472] [2023-11-21 21:00:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:44,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:44,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:44,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579015472] [2023-11-21 21:00:44,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579015472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:44,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:44,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:44,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698515230] [2023-11-21 21:00:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:44,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:44,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:44,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:44,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:44,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 587 [2023-11-21 21:00:44,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 527 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-21 21:00:44,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:44,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 587 [2023-11-21 21:00:44,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:44,752 INFO L124 PetriNetUnfolderBase]: 121/862 cut-off events. [2023-11-21 21:00:44,752 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-21 21:00:44,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 862 events. 121/862 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5321 event pairs, 90 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 1098. Up to 226 conditions per place. [2023-11-21 21:00:44,806 INFO L140 encePairwiseOnDemand]: 555/587 looper letters, 39 selfloop transitions, 15 changer transitions 0/514 dead transitions. [2023-11-21 21:00:44,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 514 transitions, 1194 flow [2023-11-21 21:00:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:44,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1610 transitions. [2023-11-21 21:00:44,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9142532651902329 [2023-11-21 21:00:44,813 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1610 transitions. [2023-11-21 21:00:44,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1610 transitions. [2023-11-21 21:00:44,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:44,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1610 transitions. [2023-11-21 21:00:44,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 536.6666666666666) internal successors, (1610), 3 states have internal predecessors, (1610), 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) [2023-11-21 21:00:44,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:44,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:44,827 INFO L175 Difference]: Start difference. First operand has 527 places, 527 transitions, 1109 flow. Second operand 3 states and 1610 transitions. [2023-11-21 21:00:44,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 514 transitions, 1194 flow [2023-11-21 21:00:44,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 514 transitions, 1179 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:00:44,843 INFO L231 Difference]: Finished difference. Result has 512 places, 511 transitions, 1109 flow [2023-11-21 21:00:44,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=512, PETRI_TRANSITIONS=511} [2023-11-21 21:00:44,845 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -44 predicate places. [2023-11-21 21:00:44,845 INFO L495 AbstractCegarLoop]: Abstraction has has 512 places, 511 transitions, 1109 flow [2023-11-21 21:00:44,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-21 21:00:44,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:44,847 INFO L208 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] [2023-11-21 21:00:44,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 21:00:44,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:44,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash 117963085, now seen corresponding path program 1 times [2023-11-21 21:00:44,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:44,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803442756] [2023-11-21 21:00:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:44,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:44,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:44,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:44,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803442756] [2023-11-21 21:00:44,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803442756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:44,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:44,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:44,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481434467] [2023-11-21 21:00:44,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:44,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:44,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:44,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 587 [2023-11-21 21:00:45,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 511 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-21 21:00:45,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:45,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 587 [2023-11-21 21:00:45,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:45,570 INFO L124 PetriNetUnfolderBase]: 129/1358 cut-off events. [2023-11-21 21:00:45,571 INFO L125 PetriNetUnfolderBase]: For 94/98 co-relation queries the response was YES. [2023-11-21 21:00:45,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 1358 events. 129/1358 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9356 event pairs, 51 based on Foata normal form. 0/1171 useless extension candidates. Maximal degree in co-relation 1537. Up to 232 conditions per place. [2023-11-21 21:00:45,638 INFO L140 encePairwiseOnDemand]: 553/587 looper letters, 44 selfloop transitions, 16 changer transitions 0/501 dead transitions. [2023-11-21 21:00:45,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 501 transitions, 1215 flow [2023-11-21 21:00:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1608 transitions. [2023-11-21 21:00:45,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9131175468483816 [2023-11-21 21:00:45,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1608 transitions. [2023-11-21 21:00:45,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1608 transitions. [2023-11-21 21:00:45,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:45,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1608 transitions. [2023-11-21 21:00:45,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 536.0) internal successors, (1608), 3 states have internal predecessors, (1608), 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) [2023-11-21 21:00:45,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:45,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:45,655 INFO L175 Difference]: Start difference. First operand has 512 places, 511 transitions, 1109 flow. Second operand 3 states and 1608 transitions. [2023-11-21 21:00:45,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 501 transitions, 1215 flow [2023-11-21 21:00:45,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 501 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:00:45,668 INFO L231 Difference]: Finished difference. Result has 496 places, 495 transitions, 1114 flow [2023-11-21 21:00:45,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=496, PETRI_TRANSITIONS=495} [2023-11-21 21:00:45,670 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -60 predicate places. [2023-11-21 21:00:45,671 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 495 transitions, 1114 flow [2023-11-21 21:00:45,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-21 21:00:45,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:45,672 INFO L208 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] [2023-11-21 21:00:45,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 21:00:45,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:45,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:45,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1693413895, now seen corresponding path program 1 times [2023-11-21 21:00:45,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:45,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570024248] [2023-11-21 21:00:45,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:45,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:45,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:45,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570024248] [2023-11-21 21:00:45,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570024248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:45,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:45,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:00:45,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421182804] [2023-11-21 21:00:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:45,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:00:45,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:00:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:00:45,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 587 [2023-11-21 21:00:45,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 495 transitions, 1114 flow. Second operand has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 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) [2023-11-21 21:00:45,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:45,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 587 [2023-11-21 21:00:45,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:46,081 INFO L124 PetriNetUnfolderBase]: 12/846 cut-off events. [2023-11-21 21:00:46,082 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-21 21:00:46,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 846 events. 12/846 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4003 event pairs, 0 based on Foata normal form. 0/740 useless extension candidates. Maximal degree in co-relation 687. Up to 26 conditions per place. [2023-11-21 21:00:46,106 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 19 selfloop transitions, 5 changer transitions 0/500 dead transitions. [2023-11-21 21:00:46,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 500 transitions, 1172 flow [2023-11-21 21:00:46,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:00:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 21:00:46,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2825 transitions. [2023-11-21 21:00:46,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9625212947189097 [2023-11-21 21:00:46,117 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2825 transitions. [2023-11-21 21:00:46,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2825 transitions. [2023-11-21 21:00:46,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:46,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2825 transitions. [2023-11-21 21:00:46,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 565.0) internal successors, (2825), 5 states have internal predecessors, (2825), 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) [2023-11-21 21:00:46,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 587.0) internal successors, (3522), 6 states have internal predecessors, (3522), 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) [2023-11-21 21:00:46,136 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 587.0) internal successors, (3522), 6 states have internal predecessors, (3522), 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) [2023-11-21 21:00:46,137 INFO L175 Difference]: Start difference. First operand has 496 places, 495 transitions, 1114 flow. Second operand 5 states and 2825 transitions. [2023-11-21 21:00:46,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 500 transitions, 1172 flow [2023-11-21 21:00:46,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 500 transitions, 1156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:00:46,153 INFO L231 Difference]: Finished difference. Result has 503 places, 499 transitions, 1136 flow [2023-11-21 21:00:46,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1136, PETRI_PLACES=503, PETRI_TRANSITIONS=499} [2023-11-21 21:00:46,156 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -53 predicate places. [2023-11-21 21:00:46,156 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 499 transitions, 1136 flow [2023-11-21 21:00:46,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 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) [2023-11-21 21:00:46,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:46,158 INFO L208 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] [2023-11-21 21:00:46,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 21:00:46,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:46,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash 563466835, now seen corresponding path program 1 times [2023-11-21 21:00:46,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:46,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872857881] [2023-11-21 21:00:46,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:46,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872857881] [2023-11-21 21:00:46,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872857881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:46,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:46,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393141476] [2023-11-21 21:00:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:46,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:46,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:46,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:46,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:46,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 587 [2023-11-21 21:00:46,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 499 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-21 21:00:46,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:46,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 587 [2023-11-21 21:00:46,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:47,010 INFO L124 PetriNetUnfolderBase]: 208/1851 cut-off events. [2023-11-21 21:00:47,010 INFO L125 PetriNetUnfolderBase]: For 198/202 co-relation queries the response was YES. [2023-11-21 21:00:47,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1851 events. 208/1851 cut-off events. For 198/202 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 14364 event pairs, 91 based on Foata normal form. 1/1662 useless extension candidates. Maximal degree in co-relation 1996. Up to 380 conditions per place. [2023-11-21 21:00:47,064 INFO L140 encePairwiseOnDemand]: 555/587 looper letters, 40 selfloop transitions, 15 changer transitions 11/490 dead transitions. [2023-11-21 21:00:47,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 490 transitions, 1239 flow [2023-11-21 21:00:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:47,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:47,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1613 transitions. [2023-11-21 21:00:47,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9159568427030097 [2023-11-21 21:00:47,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1613 transitions. [2023-11-21 21:00:47,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1613 transitions. [2023-11-21 21:00:47,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:47,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1613 transitions. [2023-11-21 21:00:47,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 537.6666666666666) internal successors, (1613), 3 states have internal predecessors, (1613), 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) [2023-11-21 21:00:47,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:47,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:47,084 INFO L175 Difference]: Start difference. First operand has 503 places, 499 transitions, 1136 flow. Second operand 3 states and 1613 transitions. [2023-11-21 21:00:47,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 490 transitions, 1239 flow [2023-11-21 21:00:47,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 490 transitions, 1239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:00:47,097 INFO L231 Difference]: Finished difference. Result has 489 places, 472 transitions, 1128 flow [2023-11-21 21:00:47,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=489, PETRI_TRANSITIONS=472} [2023-11-21 21:00:47,099 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -67 predicate places. [2023-11-21 21:00:47,099 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 472 transitions, 1128 flow [2023-11-21 21:00:47,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-21 21:00:47,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:47,100 INFO L208 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] [2023-11-21 21:00:47,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 21:00:47,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:47,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:47,101 INFO L85 PathProgramCache]: Analyzing trace with hash 471700510, now seen corresponding path program 1 times [2023-11-21 21:00:47,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:47,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257017023] [2023-11-21 21:00:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:47,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:47,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:47,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257017023] [2023-11-21 21:00:47,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257017023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:47,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:47,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:47,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100233945] [2023-11-21 21:00:47,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:47,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:47,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:47,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:47,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 559 out of 587 [2023-11-21 21:00:47,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 472 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 3 states have internal predecessors, (1681), 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) [2023-11-21 21:00:47,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:47,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 559 of 587 [2023-11-21 21:00:47,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:50,546 INFO L124 PetriNetUnfolderBase]: 746/14537 cut-off events. [2023-11-21 21:00:50,546 INFO L125 PetriNetUnfolderBase]: For 439/471 co-relation queries the response was YES. [2023-11-21 21:00:50,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18525 conditions, 14537 events. 746/14537 cut-off events. For 439/471 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 189349 event pairs, 276 based on Foata normal form. 3/12991 useless extension candidates. Maximal degree in co-relation 14079. Up to 1027 conditions per place. [2023-11-21 21:00:50,853 INFO L140 encePairwiseOnDemand]: 579/587 looper letters, 19 selfloop transitions, 4 changer transitions 0/475 dead transitions. [2023-11-21 21:00:50,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 475 transitions, 1183 flow [2023-11-21 21:00:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:50,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2023-11-21 21:00:50,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9676320272572402 [2023-11-21 21:00:50,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1704 transitions. [2023-11-21 21:00:50,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1704 transitions. [2023-11-21 21:00:50,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:50,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1704 transitions. [2023-11-21 21:00:50,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2023-11-21 21:00:50,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:50,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:50,874 INFO L175 Difference]: Start difference. First operand has 489 places, 472 transitions, 1128 flow. Second operand 3 states and 1704 transitions. [2023-11-21 21:00:50,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 475 transitions, 1183 flow [2023-11-21 21:00:50,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 475 transitions, 1168 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:00:50,900 INFO L231 Difference]: Finished difference. Result has 476 places, 472 transitions, 1133 flow [2023-11-21 21:00:50,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1105, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1133, PETRI_PLACES=476, PETRI_TRANSITIONS=472} [2023-11-21 21:00:50,902 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -80 predicate places. [2023-11-21 21:00:50,902 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 472 transitions, 1133 flow [2023-11-21 21:00:50,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 3 states have internal predecessors, (1681), 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) [2023-11-21 21:00:50,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:50,903 INFO L208 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] [2023-11-21 21:00:50,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 21:00:50,904 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:50,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:50,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1751667583, now seen corresponding path program 1 times [2023-11-21 21:00:50,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:50,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945247678] [2023-11-21 21:00:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:50,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945247678] [2023-11-21 21:00:50,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945247678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:50,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:50,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:50,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203765210] [2023-11-21 21:00:50,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:50,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:50,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:50,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:50,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:51,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:00:51,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 472 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 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) [2023-11-21 21:00:51,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:51,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:00:51,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:52,431 INFO L124 PetriNetUnfolderBase]: 365/4440 cut-off events. [2023-11-21 21:00:52,431 INFO L125 PetriNetUnfolderBase]: For 169/175 co-relation queries the response was YES. [2023-11-21 21:00:52,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6180 conditions, 4440 events. 365/4440 cut-off events. For 169/175 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 44070 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 4239. Up to 528 conditions per place. [2023-11-21 21:00:52,580 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/474 dead transitions. [2023-11-21 21:00:52,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 474 transitions, 1218 flow [2023-11-21 21:00:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:52,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:00:52,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:00:52,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:00:52,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:00:52,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:52,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:00:52,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:00:52,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:52,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:52,599 INFO L175 Difference]: Start difference. First operand has 476 places, 472 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:00:52,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 474 transitions, 1218 flow [2023-11-21 21:00:52,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 474 transitions, 1218 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:00:52,613 INFO L231 Difference]: Finished difference. Result has 477 places, 471 transitions, 1135 flow [2023-11-21 21:00:52,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1131, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1135, PETRI_PLACES=477, PETRI_TRANSITIONS=471} [2023-11-21 21:00:52,615 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -79 predicate places. [2023-11-21 21:00:52,615 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 471 transitions, 1135 flow [2023-11-21 21:00:52,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 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) [2023-11-21 21:00:52,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:52,617 INFO L208 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] [2023-11-21 21:00:52,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 21:00:52,617 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:52,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash 467621995, now seen corresponding path program 1 times [2023-11-21 21:00:52,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:52,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139701493] [2023-11-21 21:00:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:52,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:52,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:52,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139701493] [2023-11-21 21:00:52,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139701493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:52,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:52,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:52,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302027742] [2023-11-21 21:00:52,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:52,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:52,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:52,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:00:52,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 471 transitions, 1135 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-21 21:00:52,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:52,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:00:52,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:55,144 INFO L124 PetriNetUnfolderBase]: 689/6161 cut-off events. [2023-11-21 21:00:55,145 INFO L125 PetriNetUnfolderBase]: For 586/589 co-relation queries the response was YES. [2023-11-21 21:00:55,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9023 conditions, 6161 events. 689/6161 cut-off events. For 586/589 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 67635 event pairs, 499 based on Foata normal form. 0/5569 useless extension candidates. Maximal degree in co-relation 8714. Up to 1234 conditions per place. [2023-11-21 21:00:55,370 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2023-11-21 21:00:55,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 473 transitions, 1218 flow [2023-11-21 21:00:55,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:55,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-21 21:00:55,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-21 21:00:55,379 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-21 21:00:55,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-21 21:00:55,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:55,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-21 21:00:55,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-21 21:00:55,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:55,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:55,392 INFO L175 Difference]: Start difference. First operand has 477 places, 471 transitions, 1135 flow. Second operand 3 states and 1667 transitions. [2023-11-21 21:00:55,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 473 transitions, 1218 flow [2023-11-21 21:00:55,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 473 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:55,408 INFO L231 Difference]: Finished difference. Result has 476 places, 470 transitions, 1133 flow [2023-11-21 21:00:55,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1129, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1133, PETRI_PLACES=476, PETRI_TRANSITIONS=470} [2023-11-21 21:00:55,410 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -80 predicate places. [2023-11-21 21:00:55,410 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 470 transitions, 1133 flow [2023-11-21 21:00:55,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-21 21:00:55,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:55,413 INFO L208 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] [2023-11-21 21:00:55,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 21:00:55,413 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:55,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:55,414 INFO L85 PathProgramCache]: Analyzing trace with hash 206523210, now seen corresponding path program 1 times [2023-11-21 21:00:55,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:55,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703890790] [2023-11-21 21:00:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:55,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:55,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:55,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703890790] [2023-11-21 21:00:55,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703890790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:55,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:55,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:55,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965390366] [2023-11-21 21:00:55,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:55,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:55,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:55,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:55,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:00:55,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 470 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 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) [2023-11-21 21:00:55,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:55,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:00:55,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:56,860 INFO L124 PetriNetUnfolderBase]: 365/4416 cut-off events. [2023-11-21 21:00:56,861 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-21 21:00:56,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6181 conditions, 4416 events. 365/4416 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 43835 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5149. Up to 528 conditions per place. [2023-11-21 21:00:56,971 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/472 dead transitions. [2023-11-21 21:00:56,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 472 transitions, 1218 flow [2023-11-21 21:00:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:00:56,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:00:56,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:00:56,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:00:56,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:56,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:00:56,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:00:56,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:56,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:00:56,989 INFO L175 Difference]: Start difference. First operand has 476 places, 470 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:00:56,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 472 transitions, 1218 flow [2023-11-21 21:00:56,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 472 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:57,003 INFO L231 Difference]: Finished difference. Result has 475 places, 469 transitions, 1131 flow [2023-11-21 21:00:57,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1131, PETRI_PLACES=475, PETRI_TRANSITIONS=469} [2023-11-21 21:00:57,004 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -81 predicate places. [2023-11-21 21:00:57,005 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 469 transitions, 1131 flow [2023-11-21 21:00:57,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 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) [2023-11-21 21:00:57,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:57,006 INFO L208 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] [2023-11-21 21:00:57,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 21:00:57,006 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:57,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:57,007 INFO L85 PathProgramCache]: Analyzing trace with hash -490192753, now seen corresponding path program 1 times [2023-11-21 21:00:57,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:57,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205192387] [2023-11-21 21:00:57,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:57,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:57,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:57,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205192387] [2023-11-21 21:00:57,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205192387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:57,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:57,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:00:57,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938855585] [2023-11-21 21:00:57,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:57,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:00:57,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:57,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:00:57,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:00:58,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 587 [2023-11-21 21:00:58,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 469 transitions, 1131 flow. Second operand has 6 states, 6 states have (on average 563.8333333333334) internal successors, (3383), 6 states have internal predecessors, (3383), 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) [2023-11-21 21:00:58,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:58,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 587 [2023-11-21 21:00:58,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:58,892 INFO L124 PetriNetUnfolderBase]: 88/2701 cut-off events. [2023-11-21 21:00:58,892 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-21 21:00:58,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3341 conditions, 2701 events. 88/2701 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 22624 event pairs, 8 based on Foata normal form. 0/2427 useless extension candidates. Maximal degree in co-relation 3090. Up to 112 conditions per place. [2023-11-21 21:00:58,954 INFO L140 encePairwiseOnDemand]: 582/587 looper letters, 10 selfloop transitions, 4 changer transitions 0/468 dead transitions. [2023-11-21 21:00:58,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 468 transitions, 1157 flow [2023-11-21 21:00:58,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:00:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:00:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3387 transitions. [2023-11-21 21:00:59,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616695059625213 [2023-11-21 21:00:59,100 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3387 transitions. [2023-11-21 21:00:59,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3387 transitions. [2023-11-21 21:00:59,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:59,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3387 transitions. [2023-11-21 21:00:59,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 564.5) internal successors, (3387), 6 states have internal predecessors, (3387), 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) [2023-11-21 21:00:59,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-21 21:00:59,135 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-21 21:00:59,135 INFO L175 Difference]: Start difference. First operand has 475 places, 469 transitions, 1131 flow. Second operand 6 states and 3387 transitions. [2023-11-21 21:00:59,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 468 transitions, 1157 flow [2023-11-21 21:00:59,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 468 transitions, 1153 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:59,148 INFO L231 Difference]: Finished difference. Result has 477 places, 468 transitions, 1133 flow [2023-11-21 21:00:59,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1133, PETRI_PLACES=477, PETRI_TRANSITIONS=468} [2023-11-21 21:00:59,151 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -79 predicate places. [2023-11-21 21:00:59,151 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 468 transitions, 1133 flow [2023-11-21 21:00:59,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 563.8333333333334) internal successors, (3383), 6 states have internal predecessors, (3383), 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) [2023-11-21 21:00:59,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:59,152 INFO L208 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] [2023-11-21 21:00:59,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 21:00:59,153 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:00:59,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash -228441037, now seen corresponding path program 1 times [2023-11-21 21:00:59,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:59,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407973359] [2023-11-21 21:00:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:59,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:59,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407973359] [2023-11-21 21:00:59,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407973359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:59,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:59,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:59,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130269971] [2023-11-21 21:00:59,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:59,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:59,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:59,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:59,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:59,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:00:59,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 468 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 545.3333333333334) internal successors, (1636), 3 states have internal predecessors, (1636), 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) [2023-11-21 21:00:59,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:59,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:00:59,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:01,153 INFO L124 PetriNetUnfolderBase]: 464/4571 cut-off events. [2023-11-21 21:01:01,154 INFO L125 PetriNetUnfolderBase]: For 481/490 co-relation queries the response was YES. [2023-11-21 21:01:01,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6582 conditions, 4571 events. 464/4571 cut-off events. For 481/490 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 46770 event pairs, 316 based on Foata normal form. 0/4139 useless extension candidates. Maximal degree in co-relation 4788. Up to 853 conditions per place. [2023-11-21 21:01:01,249 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2023-11-21 21:01:01,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 470 transitions, 1220 flow [2023-11-21 21:01:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:01:01,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:01:01,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:01:01,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:01:01,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:01,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:01:01,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:01:01,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:01,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:01,268 INFO L175 Difference]: Start difference. First operand has 477 places, 468 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:01:01,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 470 transitions, 1220 flow [2023-11-21 21:01:01,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 470 transitions, 1213 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 21:01:01,282 INFO L231 Difference]: Finished difference. Result has 474 places, 467 transitions, 1128 flow [2023-11-21 21:01:01,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=474, PETRI_TRANSITIONS=467} [2023-11-21 21:01:01,283 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -82 predicate places. [2023-11-21 21:01:01,283 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 467 transitions, 1128 flow [2023-11-21 21:01:01,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 545.3333333333334) internal successors, (1636), 3 states have internal predecessors, (1636), 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) [2023-11-21 21:01:01,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:01,285 INFO L208 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] [2023-11-21 21:01:01,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 21:01:01,285 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:01,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:01,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1243029442, now seen corresponding path program 1 times [2023-11-21 21:01:01,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:01,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564131837] [2023-11-21 21:01:01,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:01,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:01,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:01,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564131837] [2023-11-21 21:01:01,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564131837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:01,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:01,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:01,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842188267] [2023-11-21 21:01:01,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:01,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:01,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:01,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:01,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:01,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:01:01,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 467 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-21 21:01:01,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:01,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:01:01,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:03,643 INFO L124 PetriNetUnfolderBase]: 704/6230 cut-off events. [2023-11-21 21:01:03,643 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-21 21:01:03,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9186 conditions, 6230 events. 704/6230 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 68623 event pairs, 499 based on Foata normal form. 0/5680 useless extension candidates. Maximal degree in co-relation 7990. Up to 1234 conditions per place. [2023-11-21 21:01:03,791 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2023-11-21 21:01:03,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 469 transitions, 1211 flow [2023-11-21 21:01:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:03,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:03,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-21 21:01:03,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-21 21:01:03,797 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-21 21:01:03,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-21 21:01:03,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:03,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-21 21:01:03,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-21 21:01:03,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:03,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:03,807 INFO L175 Difference]: Start difference. First operand has 474 places, 467 transitions, 1128 flow. Second operand 3 states and 1667 transitions. [2023-11-21 21:01:03,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 469 transitions, 1211 flow [2023-11-21 21:01:03,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 469 transitions, 1207 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:03,822 INFO L231 Difference]: Finished difference. Result has 473 places, 466 transitions, 1126 flow [2023-11-21 21:01:03,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=473, PETRI_TRANSITIONS=466} [2023-11-21 21:01:03,823 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -83 predicate places. [2023-11-21 21:01:03,824 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 466 transitions, 1126 flow [2023-11-21 21:01:03,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-21 21:01:03,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:03,825 INFO L208 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] [2023-11-21 21:01:03,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 21:01:03,825 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:03,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1598153195, now seen corresponding path program 1 times [2023-11-21 21:01:03,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:03,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386243589] [2023-11-21 21:01:03,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:03,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:03,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:03,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386243589] [2023-11-21 21:01:03,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386243589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:03,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:03,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:03,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353970850] [2023-11-21 21:01:03,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:03,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:03,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:03,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:03,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:03,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:01:03,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 466 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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) [2023-11-21 21:01:03,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:03,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:01:03,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:05,202 INFO L124 PetriNetUnfolderBase]: 365/4376 cut-off events. [2023-11-21 21:01:05,203 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-21 21:01:05,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6144 conditions, 4376 events. 365/4376 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 43225 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5256. Up to 528 conditions per place. [2023-11-21 21:01:05,294 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2023-11-21 21:01:05,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 468 transitions, 1211 flow [2023-11-21 21:01:05,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:01:05,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:01:05,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:01:05,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:01:05,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:05,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:01:05,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:01:05,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:05,309 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:05,309 INFO L175 Difference]: Start difference. First operand has 473 places, 466 transitions, 1126 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:01:05,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 468 transitions, 1211 flow [2023-11-21 21:01:05,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 468 transitions, 1207 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:05,323 INFO L231 Difference]: Finished difference. Result has 472 places, 465 transitions, 1124 flow [2023-11-21 21:01:05,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=472, PETRI_TRANSITIONS=465} [2023-11-21 21:01:05,325 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -84 predicate places. [2023-11-21 21:01:05,325 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 465 transitions, 1124 flow [2023-11-21 21:01:05,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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) [2023-11-21 21:01:05,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:05,326 INFO L208 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] [2023-11-21 21:01:05,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 21:01:05,326 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:05,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:05,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2003421738, now seen corresponding path program 1 times [2023-11-21 21:01:05,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:05,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431742447] [2023-11-21 21:01:05,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:05,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:05,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:05,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431742447] [2023-11-21 21:01:05,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431742447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:05,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:05,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:05,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63053398] [2023-11-21 21:01:05,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:05,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:05,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:05,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:05,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:01:05,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 465 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 3 states have internal predecessors, (1640), 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) [2023-11-21 21:01:05,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:05,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:01:05,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:06,404 INFO L124 PetriNetUnfolderBase]: 264/3598 cut-off events. [2023-11-21 21:01:06,404 INFO L125 PetriNetUnfolderBase]: For 342/347 co-relation queries the response was YES. [2023-11-21 21:01:06,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4887 conditions, 3598 events. 264/3598 cut-off events. For 342/347 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 33997 event pairs, 156 based on Foata normal form. 0/3271 useless extension candidates. Maximal degree in co-relation 4672. Up to 480 conditions per place. [2023-11-21 21:01:06,526 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2023-11-21 21:01:06,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 467 transitions, 1207 flow [2023-11-21 21:01:06,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:06,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-21 21:01:06,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-21 21:01:06,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-21 21:01:06,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-21 21:01:06,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:06,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-21 21:01:06,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-21 21:01:06,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:06,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:06,541 INFO L175 Difference]: Start difference. First operand has 472 places, 465 transitions, 1124 flow. Second operand 3 states and 1667 transitions. [2023-11-21 21:01:06,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 467 transitions, 1207 flow [2023-11-21 21:01:06,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 467 transitions, 1203 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:06,556 INFO L231 Difference]: Finished difference. Result has 471 places, 464 transitions, 1122 flow [2023-11-21 21:01:06,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1122, PETRI_PLACES=471, PETRI_TRANSITIONS=464} [2023-11-21 21:01:06,557 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -85 predicate places. [2023-11-21 21:01:06,557 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 464 transitions, 1122 flow [2023-11-21 21:01:06,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 3 states have internal predecessors, (1640), 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) [2023-11-21 21:01:06,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:06,558 INFO L208 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] [2023-11-21 21:01:06,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 21:01:06,559 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:06,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:06,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1670809046, now seen corresponding path program 1 times [2023-11-21 21:01:06,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:06,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020174421] [2023-11-21 21:01:06,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:06,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:06,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:06,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020174421] [2023-11-21 21:01:06,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020174421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:06,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:06,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:06,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112090231] [2023-11-21 21:01:06,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:06,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:06,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:06,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:06,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:06,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:01:06,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 464 transitions, 1122 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-21 21:01:06,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:06,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:01:06,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:08,124 INFO L124 PetriNetUnfolderBase]: 464/4543 cut-off events. [2023-11-21 21:01:08,124 INFO L125 PetriNetUnfolderBase]: For 488/497 co-relation queries the response was YES. [2023-11-21 21:01:08,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6563 conditions, 4543 events. 464/4543 cut-off events. For 488/497 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 46312 event pairs, 316 based on Foata normal form. 0/4155 useless extension candidates. Maximal degree in co-relation 5792. Up to 853 conditions per place. [2023-11-21 21:01:08,253 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2023-11-21 21:01:08,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 466 transitions, 1209 flow [2023-11-21 21:01:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:08,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:01:08,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:01:08,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:01:08,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:01:08,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:08,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:01:08,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:01:08,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:08,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:08,270 INFO L175 Difference]: Start difference. First operand has 471 places, 464 transitions, 1122 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:01:08,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 466 transitions, 1209 flow [2023-11-21 21:01:08,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 466 transitions, 1205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:08,286 INFO L231 Difference]: Finished difference. Result has 470 places, 463 transitions, 1120 flow [2023-11-21 21:01:08,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1120, PETRI_PLACES=470, PETRI_TRANSITIONS=463} [2023-11-21 21:01:08,288 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -86 predicate places. [2023-11-21 21:01:08,288 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 463 transitions, 1120 flow [2023-11-21 21:01:08,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-21 21:01:08,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:08,290 INFO L208 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] [2023-11-21 21:01:08,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 21:01:08,290 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:08,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:08,291 INFO L85 PathProgramCache]: Analyzing trace with hash -890867753, now seen corresponding path program 1 times [2023-11-21 21:01:08,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:08,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469696722] [2023-11-21 21:01:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:08,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:08,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469696722] [2023-11-21 21:01:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469696722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:08,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:08,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:08,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683257141] [2023-11-21 21:01:08,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:08,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:08,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:08,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:08,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:01:08,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 463 transitions, 1120 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) [2023-11-21 21:01:08,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:08,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:01:08,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:10,924 INFO L124 PetriNetUnfolderBase]: 716/6519 cut-off events. [2023-11-21 21:01:10,925 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-21 21:01:11,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9535 conditions, 6519 events. 716/6519 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 72173 event pairs, 499 based on Foata normal form. 0/5995 useless extension candidates. Maximal degree in co-relation 8501. Up to 1234 conditions per place. [2023-11-21 21:01:11,189 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2023-11-21 21:01:11,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 465 transitions, 1203 flow [2023-11-21 21:01:11,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-21 21:01:11,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-21 21:01:11,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-21 21:01:11,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-21 21:01:11,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:11,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-21 21:01:11,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-21 21:01:11,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:11,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:11,201 INFO L175 Difference]: Start difference. First operand has 470 places, 463 transitions, 1120 flow. Second operand 3 states and 1667 transitions. [2023-11-21 21:01:11,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 465 transitions, 1203 flow [2023-11-21 21:01:11,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 465 transitions, 1199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:11,220 INFO L231 Difference]: Finished difference. Result has 469 places, 462 transitions, 1118 flow [2023-11-21 21:01:11,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=469, PETRI_TRANSITIONS=462} [2023-11-21 21:01:11,221 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -87 predicate places. [2023-11-21 21:01:11,222 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 462 transitions, 1118 flow [2023-11-21 21:01:11,222 INFO L496 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) [2023-11-21 21:01:11,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:11,223 INFO L208 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] [2023-11-21 21:01:11,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 21:01:11,223 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:11,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:11,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1220487798, now seen corresponding path program 1 times [2023-11-21 21:01:11,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:11,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834960054] [2023-11-21 21:01:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:11,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:11,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:11,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834960054] [2023-11-21 21:01:11,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834960054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:11,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:11,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:11,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711576873] [2023-11-21 21:01:11,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:11,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:11,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:11,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:11,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:11,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:01:11,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 462 transitions, 1118 flow. Second operand has 3 states, 3 states have (on average 548.0) internal successors, (1644), 3 states have internal predecessors, (1644), 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) [2023-11-21 21:01:11,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:11,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:01:11,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:12,558 INFO L124 PetriNetUnfolderBase]: 365/4328 cut-off events. [2023-11-21 21:01:12,559 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-21 21:01:12,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6096 conditions, 4328 events. 365/4328 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 42586 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5352. Up to 528 conditions per place. [2023-11-21 21:01:12,670 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2023-11-21 21:01:12,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 464 transitions, 1203 flow [2023-11-21 21:01:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:01:12,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:01:12,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:01:12,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:01:12,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:12,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:01:12,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:01:12,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:12,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:12,682 INFO L175 Difference]: Start difference. First operand has 469 places, 462 transitions, 1118 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:01:12,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 464 transitions, 1203 flow [2023-11-21 21:01:12,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 464 transitions, 1199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:12,697 INFO L231 Difference]: Finished difference. Result has 468 places, 461 transitions, 1116 flow [2023-11-21 21:01:12,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=468, PETRI_TRANSITIONS=461} [2023-11-21 21:01:12,698 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -88 predicate places. [2023-11-21 21:01:12,698 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 461 transitions, 1116 flow [2023-11-21 21:01:12,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.0) internal successors, (1644), 3 states have internal predecessors, (1644), 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) [2023-11-21 21:01:12,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:12,699 INFO L208 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] [2023-11-21 21:01:12,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 21:01:12,699 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread4Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:12,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:12,700 INFO L85 PathProgramCache]: Analyzing trace with hash -759395341, now seen corresponding path program 1 times [2023-11-21 21:01:12,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:12,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730604354] [2023-11-21 21:01:12,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:12,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:12,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:12,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730604354] [2023-11-21 21:01:12,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730604354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:12,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:12,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:12,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887671189] [2023-11-21 21:01:12,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:12,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:12,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:12,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:12,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:12,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:01:12,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 461 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 3 states have internal predecessors, (1643), 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) [2023-11-21 21:01:12,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:12,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:01:12,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:13,762 INFO L124 PetriNetUnfolderBase]: 264/3559 cut-off events. [2023-11-21 21:01:13,762 INFO L125 PetriNetUnfolderBase]: For 342/347 co-relation queries the response was YES. [2023-11-21 21:01:13,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 3559 events. 264/3559 cut-off events. For 342/347 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 33318 event pairs, 156 based on Foata normal form. 0/3271 useless extension candidates. Maximal degree in co-relation 4669. Up to 480 conditions per place. [2023-11-21 21:01:13,873 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2023-11-21 21:01:13,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 463 transitions, 1199 flow [2023-11-21 21:01:13,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-21 21:01:13,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-21 21:01:13,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-21 21:01:13,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-21 21:01:13,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:13,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-21 21:01:13,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-21 21:01:13,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:13,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:13,887 INFO L175 Difference]: Start difference. First operand has 468 places, 461 transitions, 1116 flow. Second operand 3 states and 1667 transitions. [2023-11-21 21:01:13,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 463 transitions, 1199 flow [2023-11-21 21:01:13,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 463 transitions, 1195 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:13,901 INFO L231 Difference]: Finished difference. Result has 467 places, 460 transitions, 1114 flow [2023-11-21 21:01:13,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=467, PETRI_TRANSITIONS=460} [2023-11-21 21:01:13,902 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -89 predicate places. [2023-11-21 21:01:13,902 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 460 transitions, 1114 flow [2023-11-21 21:01:13,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 3 states have internal predecessors, (1643), 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) [2023-11-21 21:01:13,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:13,903 INFO L208 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] [2023-11-21 21:01:13,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 21:01:13,903 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:13,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:13,904 INFO L85 PathProgramCache]: Analyzing trace with hash -38665850, now seen corresponding path program 1 times [2023-11-21 21:01:13,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:13,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788620808] [2023-11-21 21:01:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:13,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:14,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:14,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788620808] [2023-11-21 21:01:14,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788620808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:14,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:14,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:01:14,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186058706] [2023-11-21 21:01:14,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:14,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:01:14,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:14,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:01:14,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:01:14,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 587 [2023-11-21 21:01:14,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 460 transitions, 1114 flow. Second operand has 6 states, 6 states have (on average 564.0) internal successors, (3384), 6 states have internal predecessors, (3384), 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) [2023-11-21 21:01:14,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:14,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 587 [2023-11-21 21:01:14,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:15,780 INFO L124 PetriNetUnfolderBase]: 88/2640 cut-off events. [2023-11-21 21:01:15,780 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-21 21:01:15,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3291 conditions, 2640 events. 88/2640 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 21781 event pairs, 8 based on Foata normal form. 0/2427 useless extension candidates. Maximal degree in co-relation 2772. Up to 112 conditions per place. [2023-11-21 21:01:15,871 INFO L140 encePairwiseOnDemand]: 582/587 looper letters, 10 selfloop transitions, 4 changer transitions 0/459 dead transitions. [2023-11-21 21:01:15,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 459 transitions, 1140 flow [2023-11-21 21:01:15,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:01:15,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:01:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3387 transitions. [2023-11-21 21:01:15,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616695059625213 [2023-11-21 21:01:15,883 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3387 transitions. [2023-11-21 21:01:15,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3387 transitions. [2023-11-21 21:01:15,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:15,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3387 transitions. [2023-11-21 21:01:15,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 564.5) internal successors, (3387), 6 states have internal predecessors, (3387), 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) [2023-11-21 21:01:15,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-21 21:01:15,900 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-21 21:01:15,901 INFO L175 Difference]: Start difference. First operand has 467 places, 460 transitions, 1114 flow. Second operand 6 states and 3387 transitions. [2023-11-21 21:01:15,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 459 transitions, 1140 flow [2023-11-21 21:01:15,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 459 transitions, 1136 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:15,916 INFO L231 Difference]: Finished difference. Result has 469 places, 459 transitions, 1116 flow [2023-11-21 21:01:15,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=469, PETRI_TRANSITIONS=459} [2023-11-21 21:01:15,917 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -87 predicate places. [2023-11-21 21:01:15,918 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 459 transitions, 1116 flow [2023-11-21 21:01:15,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 564.0) internal successors, (3384), 6 states have internal predecessors, (3384), 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) [2023-11-21 21:01:15,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:15,919 INFO L208 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] [2023-11-21 21:01:15,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-21 21:01:15,919 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:15,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:15,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1625987681, now seen corresponding path program 1 times [2023-11-21 21:01:15,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:15,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624767981] [2023-11-21 21:01:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:15,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:15,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624767981] [2023-11-21 21:01:15,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624767981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:15,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:15,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:15,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168178238] [2023-11-21 21:01:15,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:15,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:15,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:15,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:15,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:16,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:01:16,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 459 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-21 21:01:16,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:16,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:01:16,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:17,847 INFO L124 PetriNetUnfolderBase]: 464/4510 cut-off events. [2023-11-21 21:01:17,847 INFO L125 PetriNetUnfolderBase]: For 479/488 co-relation queries the response was YES. [2023-11-21 21:01:17,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6596 conditions, 4510 events. 464/4510 cut-off events. For 479/488 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 45779 event pairs, 316 based on Foata normal form. 0/4185 useless extension candidates. Maximal degree in co-relation 5791. Up to 853 conditions per place. [2023-11-21 21:01:18,032 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2023-11-21 21:01:18,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 461 transitions, 1203 flow [2023-11-21 21:01:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:01:18,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:01:18,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:01:18,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:01:18,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:18,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:01:18,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:01:18,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:18,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:18,045 INFO L175 Difference]: Start difference. First operand has 469 places, 459 transitions, 1116 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:01:18,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 461 transitions, 1203 flow [2023-11-21 21:01:18,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 461 transitions, 1196 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 21:01:18,061 INFO L231 Difference]: Finished difference. Result has 466 places, 458 transitions, 1111 flow [2023-11-21 21:01:18,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1111, PETRI_PLACES=466, PETRI_TRANSITIONS=458} [2023-11-21 21:01:18,062 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -90 predicate places. [2023-11-21 21:01:18,062 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 458 transitions, 1111 flow [2023-11-21 21:01:18,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-21 21:01:18,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:18,063 INFO L208 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] [2023-11-21 21:01:18,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-21 21:01:18,064 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:18,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1783977578, now seen corresponding path program 1 times [2023-11-21 21:01:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:18,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41080937] [2023-11-21 21:01:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:18,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:18,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:18,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41080937] [2023-11-21 21:01:18,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41080937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:18,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:18,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:18,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770240113] [2023-11-21 21:01:18,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:18,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:18,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:18,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:18,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:18,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:01:18,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 458 transitions, 1111 flow. Second operand has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 3 states have internal predecessors, (1648), 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) [2023-11-21 21:01:18,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:18,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:01:18,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:20,490 INFO L124 PetriNetUnfolderBase]: 728/6751 cut-off events. [2023-11-21 21:01:20,490 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-21 21:01:20,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 6751 events. 728/6751 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 74624 event pairs, 499 based on Foata normal form. 0/6310 useless extension candidates. Maximal degree in co-relation 9006. Up to 1234 conditions per place. [2023-11-21 21:01:20,721 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2023-11-21 21:01:20,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 460 transitions, 1194 flow [2023-11-21 21:01:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-21 21:01:20,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-21 21:01:20,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-21 21:01:20,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-21 21:01:20,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:20,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-21 21:01:20,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-21 21:01:20,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:20,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:20,729 INFO L175 Difference]: Start difference. First operand has 466 places, 458 transitions, 1111 flow. Second operand 3 states and 1667 transitions. [2023-11-21 21:01:20,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 460 transitions, 1194 flow [2023-11-21 21:01:20,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 460 transitions, 1190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:20,743 INFO L231 Difference]: Finished difference. Result has 465 places, 457 transitions, 1109 flow [2023-11-21 21:01:20,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1105, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=465, PETRI_TRANSITIONS=457} [2023-11-21 21:01:20,744 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -91 predicate places. [2023-11-21 21:01:20,744 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 457 transitions, 1109 flow [2023-11-21 21:01:20,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 3 states have internal predecessors, (1648), 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) [2023-11-21 21:01:20,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:20,745 INFO L208 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] [2023-11-21 21:01:20,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-21 21:01:20,745 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:20,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:20,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1766475863, now seen corresponding path program 1 times [2023-11-21 21:01:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:20,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106988073] [2023-11-21 21:01:20,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:20,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:20,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:20,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106988073] [2023-11-21 21:01:20,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106988073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:20,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:20,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:20,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027972447] [2023-11-21 21:01:20,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:20,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:20,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:20,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:20,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:20,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:01:20,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 457 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 549.0) internal successors, (1647), 3 states have internal predecessors, (1647), 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) [2023-11-21 21:01:20,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:20,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:01:20,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:22,093 INFO L124 PetriNetUnfolderBase]: 365/4277 cut-off events. [2023-11-21 21:01:22,093 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-21 21:01:22,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6048 conditions, 4277 events. 365/4277 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 41875 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5448. Up to 528 conditions per place. [2023-11-21 21:01:22,256 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2023-11-21 21:01:22,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 459 transitions, 1194 flow [2023-11-21 21:01:22,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:22,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:01:22,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:01:22,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:01:22,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:01:22,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:22,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:01:22,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:01:22,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:22,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:22,275 INFO L175 Difference]: Start difference. First operand has 465 places, 457 transitions, 1109 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:01:22,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 459 transitions, 1194 flow [2023-11-21 21:01:22,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 459 transitions, 1190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:22,291 INFO L231 Difference]: Finished difference. Result has 464 places, 456 transitions, 1107 flow [2023-11-21 21:01:22,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1107, PETRI_PLACES=464, PETRI_TRANSITIONS=456} [2023-11-21 21:01:22,293 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -92 predicate places. [2023-11-21 21:01:22,293 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 456 transitions, 1107 flow [2023-11-21 21:01:22,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 549.0) internal successors, (1647), 3 states have internal predecessors, (1647), 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) [2023-11-21 21:01:22,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:22,294 INFO L208 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] [2023-11-21 21:01:22,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-21 21:01:22,295 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread4Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:22,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:22,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1298120834, now seen corresponding path program 1 times [2023-11-21 21:01:22,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:22,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866813865] [2023-11-21 21:01:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:22,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:22,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:22,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866813865] [2023-11-21 21:01:22,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866813865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:22,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:22,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:22,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407644635] [2023-11-21 21:01:22,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:22,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:22,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:22,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:22,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:22,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:01:22,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 456 transitions, 1107 flow. Second operand has 3 states, 3 states have (on average 548.6666666666666) internal successors, (1646), 3 states have internal predecessors, (1646), 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) [2023-11-21 21:01:22,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:22,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:01:22,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:23,596 INFO L124 PetriNetUnfolderBase]: 264/3517 cut-off events. [2023-11-21 21:01:23,596 INFO L125 PetriNetUnfolderBase]: For 342/347 co-relation queries the response was YES. [2023-11-21 21:01:23,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4809 conditions, 3517 events. 264/3517 cut-off events. For 342/347 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 32799 event pairs, 156 based on Foata normal form. 0/3271 useless extension candidates. Maximal degree in co-relation 4666. Up to 480 conditions per place. [2023-11-21 21:01:23,674 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/458 dead transitions. [2023-11-21 21:01:23,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 458 transitions, 1190 flow [2023-11-21 21:01:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:23,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-21 21:01:23,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-21 21:01:23,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-21 21:01:23,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-21 21:01:23,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:23,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-21 21:01:23,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-21 21:01:23,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:23,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:23,686 INFO L175 Difference]: Start difference. First operand has 464 places, 456 transitions, 1107 flow. Second operand 3 states and 1667 transitions. [2023-11-21 21:01:23,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 458 transitions, 1190 flow [2023-11-21 21:01:23,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 458 transitions, 1186 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:23,702 INFO L231 Difference]: Finished difference. Result has 463 places, 455 transitions, 1105 flow [2023-11-21 21:01:23,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1105, PETRI_PLACES=463, PETRI_TRANSITIONS=455} [2023-11-21 21:01:23,704 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -93 predicate places. [2023-11-21 21:01:23,704 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 455 transitions, 1105 flow [2023-11-21 21:01:23,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.6666666666666) internal successors, (1646), 3 states have internal predecessors, (1646), 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) [2023-11-21 21:01:23,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:23,705 INFO L208 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] [2023-11-21 21:01:23,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-21 21:01:23,705 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:23,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:23,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1706937854, now seen corresponding path program 1 times [2023-11-21 21:01:23,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:23,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506186071] [2023-11-21 21:01:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:23,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:23,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:23,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506186071] [2023-11-21 21:01:23,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506186071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:23,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:23,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:23,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620066595] [2023-11-21 21:01:23,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:23,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:23,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:23,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:23,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:23,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-21 21:01:23,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 455 transitions, 1105 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) [2023-11-21 21:01:23,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:23,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-21 21:01:23,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:25,386 INFO L124 PetriNetUnfolderBase]: 464/4492 cut-off events. [2023-11-21 21:01:25,386 INFO L125 PetriNetUnfolderBase]: For 488/497 co-relation queries the response was YES. [2023-11-21 21:01:25,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6539 conditions, 4492 events. 464/4492 cut-off events. For 488/497 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 45390 event pairs, 316 based on Foata normal form. 0/4215 useless extension candidates. Maximal degree in co-relation 5984. Up to 853 conditions per place. [2023-11-21 21:01:25,494 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/457 dead transitions. [2023-11-21 21:01:25,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 457 transitions, 1192 flow [2023-11-21 21:01:25,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-21 21:01:25,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-21 21:01:25,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-21 21:01:25,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-21 21:01:25,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:25,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-21 21:01:25,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-21 21:01:25,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:25,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-21 21:01:25,506 INFO L175 Difference]: Start difference. First operand has 463 places, 455 transitions, 1105 flow. Second operand 3 states and 1665 transitions. [2023-11-21 21:01:25,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 457 transitions, 1192 flow [2023-11-21 21:01:25,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 457 transitions, 1188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:25,522 INFO L231 Difference]: Finished difference. Result has 462 places, 454 transitions, 1103 flow [2023-11-21 21:01:25,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1099, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1103, PETRI_PLACES=462, PETRI_TRANSITIONS=454} [2023-11-21 21:01:25,524 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -94 predicate places. [2023-11-21 21:01:25,524 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 454 transitions, 1103 flow [2023-11-21 21:01:25,524 INFO L496 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) [2023-11-21 21:01:25,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:25,525 INFO L208 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] [2023-11-21 21:01:25,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-21 21:01:25,525 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-21 21:01:25,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:25,526 INFO L85 PathProgramCache]: Analyzing trace with hash -366207165, now seen corresponding path program 1 times [2023-11-21 21:01:25,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:25,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7437745] [2023-11-21 21:01:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:25,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:25,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:25,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7437745] [2023-11-21 21:01:25,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7437745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:25,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:25,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:25,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683572858] [2023-11-21 21:01:25,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:25,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:25,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:25,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:25,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:25,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-21 21:01:25,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 454 transitions, 1103 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) [2023-11-21 21:01:25,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:25,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-21 21:01:25,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand