./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya --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 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:30:48,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:30:48,931 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 06:30:48,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:30:48,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:30:48,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:30:48,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:30:48,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:30:48,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:30:48,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:30:48,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:30:48,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:30:48,960 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:30:48,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:30:48,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:30:48,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:30:48,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:30:48,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:30:48,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:30:48,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:30:48,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:30:48,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:30:48,972 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 06:30:48,972 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:30:48,973 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:30:48,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:30:48,973 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:30:48,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:30:48,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:30:48,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:30:48,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:30:48,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:30:48,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:30:48,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:30:48,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:30:48,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:30:48,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:30:48,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:30:48,977 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:30:48,977 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:30:48,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:30:48,978 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_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f [2023-11-29 06:30:49,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:30:49,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:30:49,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:30:49,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:30:49,233 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:30:49,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-29 06:30:51,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:30:54,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:30:54,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-29 06:30:54,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/data/32c612160/ba953dbb3725448fb34ff95bdc2cd9a4/FLAG54fb95d29 [2023-11-29 06:30:54,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/data/32c612160/ba953dbb3725448fb34ff95bdc2cd9a4 [2023-11-29 06:30:54,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:30:54,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:30:54,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:30:54,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:30:54,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:30:54,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f29fb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54, skipping insertion in model container [2023-11-29 06:30:54,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:30:54,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:30:54,544 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:30:54,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:30:54,599 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:30:54,599 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:30:54,607 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:30:54,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54 WrapperNode [2023-11-29 06:30:54,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:30:54,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:30:54,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:30:54,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:30:54,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,668 INFO L138 Inliner]: procedures = 25, calls = 99, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 550 [2023-11-29 06:30:54,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:30:54,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:30:54,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:30:54,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:30:54,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:30:54,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:30:54,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:30:54,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:30:54,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (1/1) ... [2023-11-29 06:30:54,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:30:54,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:30:54,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:30:54,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28eef0bc-b144-47a4-8c87-e1d01625bf56/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 06:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 06:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 06:30:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 06:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 06:30:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 06:30:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 06:30:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 06:30:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-29 06:30:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-29 06:30:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 06:30:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-29 06:30:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-29 06:30:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-29 06:30:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-29 06:30:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 06:30:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 06:30:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:30:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:30:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:30:54,791 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:30:54,938 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:30:54,941 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:30:55,541 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:30:55,717 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:30:55,717 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:30:55,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:55 BoogieIcfgContainer [2023-11-29 06:30:55,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:30:55,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:30:55,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:30:55,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:30:55,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:30:54" (1/3) ... [2023-11-29 06:30:55,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee1ec8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:30:55, skipping insertion in model container [2023-11-29 06:30:55,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:54" (2/3) ... [2023-11-29 06:30:55,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee1ec8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:30:55, skipping insertion in model container [2023-11-29 06:30:55,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:55" (3/3) ... [2023-11-29 06:30:55,728 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-11-29 06:30:55,737 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:30:55,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:30:55,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-29 06:30:55,748 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:30:55,897 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-29 06:30:55,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 486 places, 481 transitions, 1028 flow [2023-11-29 06:30:56,079 INFO L124 PetriNetUnfolderBase]: 14/441 cut-off events. [2023-11-29 06:30:56,080 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 06:30:56,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 441 events. 14/441 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 784 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 368. Up to 3 conditions per place. [2023-11-29 06:30:56,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 486 places, 481 transitions, 1028 flow [2023-11-29 06:30:56,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 417 transitions, 882 flow [2023-11-29 06:30:56,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:30:56,118 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;@2754b96e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:30:56,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2023-11-29 06:30:56,122 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:30:56,123 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-29 06:30:56,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:30:56,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:30:56,123 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] [2023-11-29 06:30:56,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:30:56,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:30:56,128 INFO L85 PathProgramCache]: Analyzing trace with hash 324629262, now seen corresponding path program 1 times [2023-11-29 06:30:56,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:30:56,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263025505] [2023-11-29 06:30:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:30:56,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:30:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:30:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:30:56,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:30:56,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263025505] [2023-11-29 06:30:56,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263025505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:30:56,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:30:56,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:30:56,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981217943] [2023-11-29 06:30:56,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:30:56,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:30:56,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:30:56,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:30:56,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:30:56,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-29 06:30:56,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 417 transitions, 882 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:30:56,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:30:56,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-29 06:30:56,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:01,764 INFO L124 PetriNetUnfolderBase]: 11752/20435 cut-off events. [2023-11-29 06:31:01,764 INFO L125 PetriNetUnfolderBase]: For 4521/5009 co-relation queries the response was YES. [2023-11-29 06:31:01,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41065 conditions, 20435 events. 11752/20435 cut-off events. For 4521/5009 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 158738 event pairs, 10673 based on Foata normal form. 84/18982 useless extension candidates. Maximal degree in co-relation 40241. Up to 16165 conditions per place. [2023-11-29 06:31:02,106 INFO L140 encePairwiseOnDemand]: 435/485 looper letters, 46 selfloop transitions, 2 changer transitions 1/369 dead transitions. [2023-11-29 06:31:02,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 369 transitions, 882 flow [2023-11-29 06:31:02,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:02,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1230 transitions. [2023-11-29 06:31:02,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.845360824742268 [2023-11-29 06:31:02,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1230 transitions. [2023-11-29 06:31:02,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1230 transitions. [2023-11-29 06:31:02,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:02,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1230 transitions. [2023-11-29 06:31:02,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:02,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:02,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:02,151 INFO L175 Difference]: Start difference. First operand has 424 places, 417 transitions, 882 flow. Second operand 3 states and 1230 transitions. [2023-11-29 06:31:02,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 369 transitions, 882 flow [2023-11-29 06:31:02,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 369 transitions, 850 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-29 06:31:02,293 INFO L231 Difference]: Finished difference. Result has 369 places, 368 transitions, 756 flow [2023-11-29 06:31:02,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=369, PETRI_TRANSITIONS=368} [2023-11-29 06:31:02,300 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -55 predicate places. [2023-11-29 06:31:02,300 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 368 transitions, 756 flow [2023-11-29 06:31:02,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:02,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:02,302 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] [2023-11-29 06:31:02,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:31:02,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:02,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:02,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1735873499, now seen corresponding path program 1 times [2023-11-29 06:31:02,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:02,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853181686] [2023-11-29 06:31:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:02,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:02,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:02,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:02,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853181686] [2023-11-29 06:31:02,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853181686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:02,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:02,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:02,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913685395] [2023-11-29 06:31:02,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:02,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:02,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:02,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:02,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:02,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-29 06:31:02,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 368 transitions, 756 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:02,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:02,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-29 06:31:02,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:06,180 INFO L124 PetriNetUnfolderBase]: 11752/20498 cut-off events. [2023-11-29 06:31:06,180 INFO L125 PetriNetUnfolderBase]: For 1130/1618 co-relation queries the response was YES. [2023-11-29 06:31:06,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37800 conditions, 20498 events. 11752/20498 cut-off events. For 1130/1618 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 158272 event pairs, 10673 based on Foata normal form. 0/18938 useless extension candidates. Maximal degree in co-relation 37763. Up to 16165 conditions per place. [2023-11-29 06:31:06,380 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 46 selfloop transitions, 2 changer transitions 0/367 dead transitions. [2023-11-29 06:31:06,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 367 transitions, 850 flow [2023-11-29 06:31:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2023-11-29 06:31:06,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8130584192439863 [2023-11-29 06:31:06,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2023-11-29 06:31:06,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2023-11-29 06:31:06,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:06,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2023-11-29 06:31:06,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:06,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:06,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:06,397 INFO L175 Difference]: Start difference. First operand has 369 places, 368 transitions, 756 flow. Second operand 3 states and 1183 transitions. [2023-11-29 06:31:06,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 367 transitions, 850 flow [2023-11-29 06:31:06,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 367 transitions, 846 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:06,408 INFO L231 Difference]: Finished difference. Result has 367 places, 367 transitions, 754 flow [2023-11-29 06:31:06,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=367, PETRI_TRANSITIONS=367} [2023-11-29 06:31:06,410 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -57 predicate places. [2023-11-29 06:31:06,410 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 367 transitions, 754 flow [2023-11-29 06:31:06,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:06,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:06,412 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] [2023-11-29 06:31:06,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:31:06,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:06,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash -839739627, now seen corresponding path program 1 times [2023-11-29 06:31:06,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226413394] [2023-11-29 06:31:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:06,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:06,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:06,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226413394] [2023-11-29 06:31:06,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226413394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:06,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:06,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:06,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152138671] [2023-11-29 06:31:06,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:06,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:06,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:06,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:06,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:06,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 485 [2023-11-29 06:31:06,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 367 transitions, 754 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:06,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:06,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 485 [2023-11-29 06:31:06,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:10,209 INFO L124 PetriNetUnfolderBase]: 11752/20497 cut-off events. [2023-11-29 06:31:10,209 INFO L125 PetriNetUnfolderBase]: For 1130/1618 co-relation queries the response was YES. [2023-11-29 06:31:10,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37797 conditions, 20497 events. 11752/20497 cut-off events. For 1130/1618 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 159206 event pairs, 10673 based on Foata normal form. 0/18937 useless extension candidates. Maximal degree in co-relation 37752. Up to 16163 conditions per place. [2023-11-29 06:31:10,411 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 44 selfloop transitions, 2 changer transitions 0/366 dead transitions. [2023-11-29 06:31:10,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 366 transitions, 844 flow [2023-11-29 06:31:10,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:10,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:10,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2023-11-29 06:31:10,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815807560137457 [2023-11-29 06:31:10,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1187 transitions. [2023-11-29 06:31:10,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1187 transitions. [2023-11-29 06:31:10,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:10,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1187 transitions. [2023-11-29 06:31:10,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:10,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:10,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:10,424 INFO L175 Difference]: Start difference. First operand has 367 places, 367 transitions, 754 flow. Second operand 3 states and 1187 transitions. [2023-11-29 06:31:10,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 366 transitions, 844 flow [2023-11-29 06:31:10,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 366 transitions, 840 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:10,430 INFO L231 Difference]: Finished difference. Result has 366 places, 366 transitions, 752 flow [2023-11-29 06:31:10,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=752, PETRI_PLACES=366, PETRI_TRANSITIONS=366} [2023-11-29 06:31:10,431 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -58 predicate places. [2023-11-29 06:31:10,431 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 366 transitions, 752 flow [2023-11-29 06:31:10,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:10,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:10,432 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] [2023-11-29 06:31:10,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:31:10,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:10,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:10,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2063185978, now seen corresponding path program 1 times [2023-11-29 06:31:10,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:10,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487386289] [2023-11-29 06:31:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:10,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:10,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487386289] [2023-11-29 06:31:10,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487386289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:10,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:10,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:10,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215507563] [2023-11-29 06:31:10,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:10,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:10,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:10,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:10,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:10,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 485 [2023-11-29 06:31:10,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 366 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:10,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:10,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 485 [2023-11-29 06:31:10,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:14,348 INFO L124 PetriNetUnfolderBase]: 11752/20496 cut-off events. [2023-11-29 06:31:14,348 INFO L125 PetriNetUnfolderBase]: For 1130/1618 co-relation queries the response was YES. [2023-11-29 06:31:14,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37796 conditions, 20496 events. 11752/20496 cut-off events. For 1130/1618 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 159172 event pairs, 10673 based on Foata normal form. 0/18937 useless extension candidates. Maximal degree in co-relation 37744. Up to 16163 conditions per place. [2023-11-29 06:31:14,561 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 44 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2023-11-29 06:31:14,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 365 transitions, 842 flow [2023-11-29 06:31:14,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:14,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2023-11-29 06:31:14,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815807560137457 [2023-11-29 06:31:14,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1187 transitions. [2023-11-29 06:31:14,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1187 transitions. [2023-11-29 06:31:14,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:14,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1187 transitions. [2023-11-29 06:31:14,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:14,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:14,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:14,572 INFO L175 Difference]: Start difference. First operand has 366 places, 366 transitions, 752 flow. Second operand 3 states and 1187 transitions. [2023-11-29 06:31:14,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 365 transitions, 842 flow [2023-11-29 06:31:14,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 365 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:14,577 INFO L231 Difference]: Finished difference. Result has 365 places, 365 transitions, 750 flow [2023-11-29 06:31:14,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=365, PETRI_TRANSITIONS=365} [2023-11-29 06:31:14,579 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -59 predicate places. [2023-11-29 06:31:14,579 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 365 transitions, 750 flow [2023-11-29 06:31:14,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:14,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:14,580 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] [2023-11-29 06:31:14,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:31:14,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:14,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:14,581 INFO L85 PathProgramCache]: Analyzing trace with hash -656767274, now seen corresponding path program 1 times [2023-11-29 06:31:14,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:14,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446783628] [2023-11-29 06:31:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:14,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446783628] [2023-11-29 06:31:14,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446783628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:14,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:14,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:14,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089182706] [2023-11-29 06:31:14,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:14,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:14,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:14,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:14,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:14,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 485 [2023-11-29 06:31:14,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 365 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:14,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:14,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 485 [2023-11-29 06:31:14,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:18,423 INFO L124 PetriNetUnfolderBase]: 11629/20204 cut-off events. [2023-11-29 06:31:18,423 INFO L125 PetriNetUnfolderBase]: For 1122/1605 co-relation queries the response was YES. [2023-11-29 06:31:18,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37308 conditions, 20204 events. 11629/20204 cut-off events. For 1122/1605 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 156365 event pairs, 10560 based on Foata normal form. 0/18670 useless extension candidates. Maximal degree in co-relation 37249. Up to 15976 conditions per place. [2023-11-29 06:31:18,618 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 43 selfloop transitions, 2 changer transitions 0/364 dead transitions. [2023-11-29 06:31:18,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 364 transitions, 838 flow [2023-11-29 06:31:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-29 06:31:18,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8171821305841924 [2023-11-29 06:31:18,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-29 06:31:18,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-29 06:31:18,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:18,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-29 06:31:18,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:18,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:18,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:18,632 INFO L175 Difference]: Start difference. First operand has 365 places, 365 transitions, 750 flow. Second operand 3 states and 1189 transitions. [2023-11-29 06:31:18,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 364 transitions, 838 flow [2023-11-29 06:31:18,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 364 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:18,640 INFO L231 Difference]: Finished difference. Result has 364 places, 364 transitions, 748 flow [2023-11-29 06:31:18,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=364, PETRI_TRANSITIONS=364} [2023-11-29 06:31:18,642 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -60 predicate places. [2023-11-29 06:31:18,642 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 364 transitions, 748 flow [2023-11-29 06:31:18,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:18,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:18,643 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] [2023-11-29 06:31:18,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:31:18,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:18,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash -872235529, now seen corresponding path program 1 times [2023-11-29 06:31:18,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:18,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960420599] [2023-11-29 06:31:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:18,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:18,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:18,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960420599] [2023-11-29 06:31:18,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960420599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:18,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:18,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:18,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411946666] [2023-11-29 06:31:18,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:18,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:18,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:18,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 485 [2023-11-29 06:31:18,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 364 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:18,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:18,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 485 [2023-11-29 06:31:18,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:22,561 INFO L124 PetriNetUnfolderBase]: 11629/20203 cut-off events. [2023-11-29 06:31:22,561 INFO L125 PetriNetUnfolderBase]: For 1122/1605 co-relation queries the response was YES. [2023-11-29 06:31:22,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37307 conditions, 20203 events. 11629/20203 cut-off events. For 1122/1605 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 156588 event pairs, 10560 based on Foata normal form. 0/18670 useless extension candidates. Maximal degree in co-relation 37240. Up to 15976 conditions per place. [2023-11-29 06:31:22,798 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 43 selfloop transitions, 2 changer transitions 0/363 dead transitions. [2023-11-29 06:31:22,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 363 transitions, 836 flow [2023-11-29 06:31:22,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-29 06:31:22,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8171821305841924 [2023-11-29 06:31:22,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-29 06:31:22,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-29 06:31:22,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:22,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-29 06:31:22,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:22,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:22,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:22,812 INFO L175 Difference]: Start difference. First operand has 364 places, 364 transitions, 748 flow. Second operand 3 states and 1189 transitions. [2023-11-29 06:31:22,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 363 transitions, 836 flow [2023-11-29 06:31:22,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 363 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:22,820 INFO L231 Difference]: Finished difference. Result has 363 places, 363 transitions, 746 flow [2023-11-29 06:31:22,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=746, PETRI_PLACES=363, PETRI_TRANSITIONS=363} [2023-11-29 06:31:22,821 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -61 predicate places. [2023-11-29 06:31:22,822 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 363 transitions, 746 flow [2023-11-29 06:31:22,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:22,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:22,823 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] [2023-11-29 06:31:22,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:31:22,823 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:22,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:22,824 INFO L85 PathProgramCache]: Analyzing trace with hash -494994177, now seen corresponding path program 1 times [2023-11-29 06:31:22,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:22,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573646781] [2023-11-29 06:31:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:22,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:22,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:22,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:22,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573646781] [2023-11-29 06:31:22,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573646781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:22,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:22,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:22,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980022783] [2023-11-29 06:31:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:22,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:22,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:22,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:22,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:22,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-29 06:31:22,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 363 transitions, 746 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:22,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:22,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-29 06:31:22,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:26,581 INFO L124 PetriNetUnfolderBase]: 11750/20437 cut-off events. [2023-11-29 06:31:26,581 INFO L125 PetriNetUnfolderBase]: For 1131/1619 co-relation queries the response was YES. [2023-11-29 06:31:26,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37738 conditions, 20437 events. 11750/20437 cut-off events. For 1131/1619 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 158376 event pairs, 10673 based on Foata normal form. 0/18891 useless extension candidates. Maximal degree in co-relation 37663. Up to 16165 conditions per place. [2023-11-29 06:31:26,779 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 46 selfloop transitions, 2 changer transitions 0/362 dead transitions. [2023-11-29 06:31:26,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 362 transitions, 840 flow [2023-11-29 06:31:26,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:26,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:26,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2023-11-29 06:31:26,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8130584192439863 [2023-11-29 06:31:26,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2023-11-29 06:31:26,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2023-11-29 06:31:26,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:26,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2023-11-29 06:31:26,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:26,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:26,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:26,791 INFO L175 Difference]: Start difference. First operand has 363 places, 363 transitions, 746 flow. Second operand 3 states and 1183 transitions. [2023-11-29 06:31:26,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 362 transitions, 840 flow [2023-11-29 06:31:26,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 362 transitions, 836 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:26,800 INFO L231 Difference]: Finished difference. Result has 362 places, 362 transitions, 744 flow [2023-11-29 06:31:26,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=362, PETRI_TRANSITIONS=362} [2023-11-29 06:31:26,802 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -62 predicate places. [2023-11-29 06:31:26,802 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 362 transitions, 744 flow [2023-11-29 06:31:26,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:26,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:26,803 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] [2023-11-29 06:31:26,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:31:26,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:26,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:26,804 INFO L85 PathProgramCache]: Analyzing trace with hash 302945398, now seen corresponding path program 1 times [2023-11-29 06:31:26,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:26,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134000507] [2023-11-29 06:31:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:26,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:26,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:26,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134000507] [2023-11-29 06:31:26,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134000507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:26,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:26,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:26,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742454823] [2023-11-29 06:31:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:26,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:26,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:26,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:26,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:26,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 485 [2023-11-29 06:31:26,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 362 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:26,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:26,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 485 [2023-11-29 06:31:26,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:30,448 INFO L124 PetriNetUnfolderBase]: 11629/20201 cut-off events. [2023-11-29 06:31:30,449 INFO L125 PetriNetUnfolderBase]: For 1122/1605 co-relation queries the response was YES. [2023-11-29 06:31:30,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37305 conditions, 20201 events. 11629/20201 cut-off events. For 1122/1605 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 156331 event pairs, 10560 based on Foata normal form. 0/18670 useless extension candidates. Maximal degree in co-relation 37222. Up to 15976 conditions per place. [2023-11-29 06:31:30,821 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 43 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2023-11-29 06:31:30,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 361 transitions, 832 flow [2023-11-29 06:31:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:30,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-29 06:31:30,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8171821305841924 [2023-11-29 06:31:30,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-29 06:31:30,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-29 06:31:30,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:30,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-29 06:31:30,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,833 INFO L175 Difference]: Start difference. First operand has 362 places, 362 transitions, 744 flow. Second operand 3 states and 1189 transitions. [2023-11-29 06:31:30,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 361 transitions, 832 flow [2023-11-29 06:31:30,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 361 transitions, 828 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:30,841 INFO L231 Difference]: Finished difference. Result has 361 places, 361 transitions, 742 flow [2023-11-29 06:31:30,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=361, PETRI_TRANSITIONS=361} [2023-11-29 06:31:30,842 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -63 predicate places. [2023-11-29 06:31:30,843 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 361 transitions, 742 flow [2023-11-29 06:31:30,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:30,844 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] [2023-11-29 06:31:30,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:31:30,844 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:30,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:30,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1216241820, now seen corresponding path program 1 times [2023-11-29 06:31:30,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:30,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414083140] [2023-11-29 06:31:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:30,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:30,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:30,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414083140] [2023-11-29 06:31:30,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414083140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:30,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:30,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:30,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113085373] [2023-11-29 06:31:30,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:30,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:30,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:30,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:30,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:30,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 485 [2023-11-29 06:31:30,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 361 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:30,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 485 [2023-11-29 06:31:30,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:34,448 INFO L124 PetriNetUnfolderBase]: 11750/20435 cut-off events. [2023-11-29 06:31:34,448 INFO L125 PetriNetUnfolderBase]: For 1131/1619 co-relation queries the response was YES. [2023-11-29 06:31:34,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37734 conditions, 20435 events. 11750/20435 cut-off events. For 1131/1619 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 158415 event pairs, 10673 based on Foata normal form. 0/18850 useless extension candidates. Maximal degree in co-relation 37643. Up to 16163 conditions per place. [2023-11-29 06:31:34,665 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 44 selfloop transitions, 2 changer transitions 0/360 dead transitions. [2023-11-29 06:31:34,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 360 transitions, 832 flow [2023-11-29 06:31:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:34,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2023-11-29 06:31:34,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815807560137457 [2023-11-29 06:31:34,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1187 transitions. [2023-11-29 06:31:34,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1187 transitions. [2023-11-29 06:31:34,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:34,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1187 transitions. [2023-11-29 06:31:34,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,676 INFO L175 Difference]: Start difference. First operand has 361 places, 361 transitions, 742 flow. Second operand 3 states and 1187 transitions. [2023-11-29 06:31:34,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 360 transitions, 832 flow [2023-11-29 06:31:34,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 360 transitions, 828 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:34,686 INFO L231 Difference]: Finished difference. Result has 360 places, 360 transitions, 740 flow [2023-11-29 06:31:34,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=360, PETRI_TRANSITIONS=360} [2023-11-29 06:31:34,687 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -64 predicate places. [2023-11-29 06:31:34,687 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 360 transitions, 740 flow [2023-11-29 06:31:34,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:34,689 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] [2023-11-29 06:31:34,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:31:34,689 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:34,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:34,689 INFO L85 PathProgramCache]: Analyzing trace with hash 749015056, now seen corresponding path program 1 times [2023-11-29 06:31:34,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:34,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984090860] [2023-11-29 06:31:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:34,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:34,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:34,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984090860] [2023-11-29 06:31:34,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984090860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:34,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:34,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:34,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563412079] [2023-11-29 06:31:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:34,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:34,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:34,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:34,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:34,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 485 [2023-11-29 06:31:34,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 360 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:34,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 485 [2023-11-29 06:31:34,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:38,483 INFO L124 PetriNetUnfolderBase]: 11750/20434 cut-off events. [2023-11-29 06:31:38,483 INFO L125 PetriNetUnfolderBase]: For 1131/1619 co-relation queries the response was YES. [2023-11-29 06:31:38,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37733 conditions, 20434 events. 11750/20434 cut-off events. For 1131/1619 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 158365 event pairs, 10673 based on Foata normal form. 0/18843 useless extension candidates. Maximal degree in co-relation 37635. Up to 16163 conditions per place. [2023-11-29 06:31:38,671 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 44 selfloop transitions, 2 changer transitions 0/359 dead transitions. [2023-11-29 06:31:38,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 359 transitions, 830 flow [2023-11-29 06:31:38,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:38,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2023-11-29 06:31:38,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815807560137457 [2023-11-29 06:31:38,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1187 transitions. [2023-11-29 06:31:38,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1187 transitions. [2023-11-29 06:31:38,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:38,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1187 transitions. [2023-11-29 06:31:38,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,680 INFO L175 Difference]: Start difference. First operand has 360 places, 360 transitions, 740 flow. Second operand 3 states and 1187 transitions. [2023-11-29 06:31:38,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 359 transitions, 830 flow [2023-11-29 06:31:38,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 359 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:38,685 INFO L231 Difference]: Finished difference. Result has 359 places, 359 transitions, 738 flow [2023-11-29 06:31:38,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=359, PETRI_TRANSITIONS=359} [2023-11-29 06:31:38,686 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -65 predicate places. [2023-11-29 06:31:38,687 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 359 transitions, 738 flow [2023-11-29 06:31:38,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:38,687 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] [2023-11-29 06:31:38,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 06:31:38,688 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:38,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash 328930661, now seen corresponding path program 1 times [2023-11-29 06:31:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:38,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297427765] [2023-11-29 06:31:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:38,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:38,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:38,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297427765] [2023-11-29 06:31:38,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297427765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:38,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:38,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:38,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164394334] [2023-11-29 06:31:38,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:38,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:38,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:38,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:38,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:38,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 485 [2023-11-29 06:31:38,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 359 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:38,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 485 [2023-11-29 06:31:38,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:42,563 INFO L124 PetriNetUnfolderBase]: 11629/20198 cut-off events. [2023-11-29 06:31:42,563 INFO L125 PetriNetUnfolderBase]: For 1122/1605 co-relation queries the response was YES. [2023-11-29 06:31:42,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37302 conditions, 20198 events. 11629/20198 cut-off events. For 1122/1605 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 156654 event pairs, 10560 based on Foata normal form. 0/18670 useless extension candidates. Maximal degree in co-relation 37197. Up to 15976 conditions per place. [2023-11-29 06:31:42,747 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 43 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2023-11-29 06:31:42,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 358 transitions, 826 flow [2023-11-29 06:31:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-29 06:31:42,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8171821305841924 [2023-11-29 06:31:42,750 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-29 06:31:42,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-29 06:31:42,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:42,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-29 06:31:42,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,755 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,755 INFO L175 Difference]: Start difference. First operand has 359 places, 359 transitions, 738 flow. Second operand 3 states and 1189 transitions. [2023-11-29 06:31:42,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 358 transitions, 826 flow [2023-11-29 06:31:42,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 358 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:42,760 INFO L231 Difference]: Finished difference. Result has 358 places, 358 transitions, 736 flow [2023-11-29 06:31:42,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=358, PETRI_TRANSITIONS=358} [2023-11-29 06:31:42,761 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -66 predicate places. [2023-11-29 06:31:42,761 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 358 transitions, 736 flow [2023-11-29 06:31:42,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:42,762 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] [2023-11-29 06:31:42,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:31:42,762 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:42,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1098630170, now seen corresponding path program 1 times [2023-11-29 06:31:42,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:42,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385706172] [2023-11-29 06:31:42,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:42,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:42,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:42,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385706172] [2023-11-29 06:31:42,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385706172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:42,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:42,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:42,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839747290] [2023-11-29 06:31:42,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:42,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:42,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:42,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 485 [2023-11-29 06:31:42,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 358 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:42,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 485 [2023-11-29 06:31:42,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:46,637 INFO L124 PetriNetUnfolderBase]: 11629/20197 cut-off events. [2023-11-29 06:31:46,637 INFO L125 PetriNetUnfolderBase]: For 1122/1605 co-relation queries the response was YES. [2023-11-29 06:31:46,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37301 conditions, 20197 events. 11629/20197 cut-off events. For 1122/1605 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 156596 event pairs, 10560 based on Foata normal form. 0/18670 useless extension candidates. Maximal degree in co-relation 37188. Up to 15976 conditions per place. [2023-11-29 06:31:46,830 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 43 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2023-11-29 06:31:46,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 357 transitions, 824 flow [2023-11-29 06:31:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:46,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-29 06:31:46,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8171821305841924 [2023-11-29 06:31:46,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-29 06:31:46,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-29 06:31:46,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:46,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-29 06:31:46,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,838 INFO L175 Difference]: Start difference. First operand has 358 places, 358 transitions, 736 flow. Second operand 3 states and 1189 transitions. [2023-11-29 06:31:46,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 357 transitions, 824 flow [2023-11-29 06:31:46,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 357 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:46,843 INFO L231 Difference]: Finished difference. Result has 357 places, 357 transitions, 734 flow [2023-11-29 06:31:46,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=357, PETRI_TRANSITIONS=357} [2023-11-29 06:31:46,844 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -67 predicate places. [2023-11-29 06:31:46,844 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 357 transitions, 734 flow [2023-11-29 06:31:46,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:46,844 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] [2023-11-29 06:31:46,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:31:46,845 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:46,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:46,845 INFO L85 PathProgramCache]: Analyzing trace with hash -649075978, now seen corresponding path program 1 times [2023-11-29 06:31:46,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:46,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552810710] [2023-11-29 06:31:46,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:46,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:46,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:46,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552810710] [2023-11-29 06:31:46,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552810710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:46,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:46,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:46,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940029422] [2023-11-29 06:31:46,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:46,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:46,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:46,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:46,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:46,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-29 06:31:46,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 357 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:46,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-29 06:31:46,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:51,195 INFO L124 PetriNetUnfolderBase]: 13116/25552 cut-off events. [2023-11-29 06:31:51,195 INFO L125 PetriNetUnfolderBase]: For 1260/3432 co-relation queries the response was YES. [2023-11-29 06:31:51,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44816 conditions, 25552 events. 13116/25552 cut-off events. For 1260/3432 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 229744 event pairs, 4957 based on Foata normal form. 12/23363 useless extension candidates. Maximal degree in co-relation 44695. Up to 12838 conditions per place. [2023-11-29 06:31:51,480 INFO L140 encePairwiseOnDemand]: 476/485 looper letters, 75 selfloop transitions, 6 changer transitions 0/388 dead transitions. [2023-11-29 06:31:51,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 388 transitions, 968 flow [2023-11-29 06:31:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1218 transitions. [2023-11-29 06:31:51,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8371134020618557 [2023-11-29 06:31:51,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1218 transitions. [2023-11-29 06:31:51,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1218 transitions. [2023-11-29 06:31:51,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:51,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1218 transitions. [2023-11-29 06:31:51,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,490 INFO L175 Difference]: Start difference. First operand has 357 places, 357 transitions, 734 flow. Second operand 3 states and 1218 transitions. [2023-11-29 06:31:51,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 388 transitions, 968 flow [2023-11-29 06:31:51,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 388 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:51,502 INFO L231 Difference]: Finished difference. Result has 356 places, 358 transitions, 764 flow [2023-11-29 06:31:51,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=356, PETRI_TRANSITIONS=358} [2023-11-29 06:31:51,503 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -68 predicate places. [2023-11-29 06:31:51,503 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 358 transitions, 764 flow [2023-11-29 06:31:51,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:51,504 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] [2023-11-29 06:31:51,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 06:31:51,504 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:51,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:51,505 INFO L85 PathProgramCache]: Analyzing trace with hash -991713067, now seen corresponding path program 1 times [2023-11-29 06:31:51,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:51,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835664338] [2023-11-29 06:31:51,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:51,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:51,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835664338] [2023-11-29 06:31:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835664338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:51,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:51,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089345598] [2023-11-29 06:31:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:51,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:51,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:51,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:51,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:51,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-29 06:31:51,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 358 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:51,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-29 06:31:51,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:56,027 INFO L124 PetriNetUnfolderBase]: 14516/27372 cut-off events. [2023-11-29 06:31:56,027 INFO L125 PetriNetUnfolderBase]: For 6949/9578 co-relation queries the response was YES. [2023-11-29 06:31:56,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53270 conditions, 27372 events. 14516/27372 cut-off events. For 6949/9578 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 239900 event pairs, 5407 based on Foata normal form. 41/25021 useless extension candidates. Maximal degree in co-relation 40317. Up to 14003 conditions per place. [2023-11-29 06:31:56,341 INFO L140 encePairwiseOnDemand]: 476/485 looper letters, 83 selfloop transitions, 6 changer transitions 0/393 dead transitions. [2023-11-29 06:31:56,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 393 transitions, 1046 flow [2023-11-29 06:31:56,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:31:56,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:31:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1218 transitions. [2023-11-29 06:31:56,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8371134020618557 [2023-11-29 06:31:56,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1218 transitions. [2023-11-29 06:31:56,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1218 transitions. [2023-11-29 06:31:56,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:56,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1218 transitions. [2023-11-29 06:31:56,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:56,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:56,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:56,351 INFO L175 Difference]: Start difference. First operand has 356 places, 358 transitions, 764 flow. Second operand 3 states and 1218 transitions. [2023-11-29 06:31:56,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 393 transitions, 1046 flow [2023-11-29 06:31:56,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 393 transitions, 1026 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:56,369 INFO L231 Difference]: Finished difference. Result has 355 places, 359 transitions, 786 flow [2023-11-29 06:31:56,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=786, PETRI_PLACES=355, PETRI_TRANSITIONS=359} [2023-11-29 06:31:56,371 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -69 predicate places. [2023-11-29 06:31:56,371 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 359 transitions, 786 flow [2023-11-29 06:31:56,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:56,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:56,371 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] [2023-11-29 06:31:56,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:31:56,372 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:31:56,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:56,372 INFO L85 PathProgramCache]: Analyzing trace with hash -393133900, now seen corresponding path program 1 times [2023-11-29 06:31:56,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:56,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112555537] [2023-11-29 06:31:56,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:56,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:56,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:56,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112555537] [2023-11-29 06:31:56,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112555537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:56,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:56,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:56,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757997588] [2023-11-29 06:31:56,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:56,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:31:56,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:56,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:31:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:31:56,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-29 06:31:56,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 359 transitions, 786 flow. Second operand has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:56,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:56,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-29 06:31:56,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:01,808 INFO L124 PetriNetUnfolderBase]: 16052/29833 cut-off events. [2023-11-29 06:32:01,808 INFO L125 PetriNetUnfolderBase]: For 7353/9279 co-relation queries the response was YES. [2023-11-29 06:32:01,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61393 conditions, 29833 events. 16052/29833 cut-off events. For 7353/9279 co-relation queries the response was YES. Maximal size of possible extension queue 1018. Compared 256188 event pairs, 8959 based on Foata normal form. 0/27184 useless extension candidates. Maximal degree in co-relation 56368. Up to 14830 conditions per place. [2023-11-29 06:32:02,164 INFO L140 encePairwiseOnDemand]: 475/485 looper letters, 89 selfloop transitions, 7 changer transitions 0/397 dead transitions. [2023-11-29 06:32:02,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 397 transitions, 1099 flow [2023-11-29 06:32:02,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:32:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:32:02,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2023-11-29 06:32:02,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8384879725085911 [2023-11-29 06:32:02,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2023-11-29 06:32:02,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2023-11-29 06:32:02,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:02,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2023-11-29 06:32:02,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,172 INFO L175 Difference]: Start difference. First operand has 355 places, 359 transitions, 786 flow. Second operand 3 states and 1220 transitions. [2023-11-29 06:32:02,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 397 transitions, 1099 flow [2023-11-29 06:32:02,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 397 transitions, 1079 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:32:02,221 INFO L231 Difference]: Finished difference. Result has 354 places, 361 transitions, 816 flow [2023-11-29 06:32:02,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=354, PETRI_TRANSITIONS=361} [2023-11-29 06:32:02,222 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -70 predicate places. [2023-11-29 06:32:02,222 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 361 transitions, 816 flow [2023-11-29 06:32:02,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:02,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:02,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 06:32:02,223 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:32:02,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:02,223 INFO L85 PathProgramCache]: Analyzing trace with hash 155477187, now seen corresponding path program 1 times [2023-11-29 06:32:02,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:02,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095666237] [2023-11-29 06:32:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:02,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:02,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:02,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095666237] [2023-11-29 06:32:02,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095666237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:02,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:02,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:32:02,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570484929] [2023-11-29 06:32:02,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:02,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:32:02,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:02,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:32:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:32:02,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 485 [2023-11-29 06:32:02,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 361 transitions, 816 flow. Second operand has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:02,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 485 [2023-11-29 06:32:02,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:07,665 INFO L124 PetriNetUnfolderBase]: 18021/32225 cut-off events. [2023-11-29 06:32:07,665 INFO L125 PetriNetUnfolderBase]: For 13092/13530 co-relation queries the response was YES. [2023-11-29 06:32:07,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70768 conditions, 32225 events. 18021/32225 cut-off events. For 13092/13530 co-relation queries the response was YES. Maximal size of possible extension queue 1166. Compared 269691 event pairs, 7607 based on Foata normal form. 3/29496 useless extension candidates. Maximal degree in co-relation 51064. Up to 16414 conditions per place. [2023-11-29 06:32:08,055 INFO L140 encePairwiseOnDemand]: 475/485 looper letters, 95 selfloop transitions, 6 changer transitions 11/404 dead transitions. [2023-11-29 06:32:08,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 404 transitions, 1170 flow [2023-11-29 06:32:08,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:32:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:32:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1222 transitions. [2023-11-29 06:32:08,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8398625429553265 [2023-11-29 06:32:08,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1222 transitions. [2023-11-29 06:32:08,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1222 transitions. [2023-11-29 06:32:08,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:08,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1222 transitions. [2023-11-29 06:32:08,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:08,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:08,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:08,062 INFO L175 Difference]: Start difference. First operand has 354 places, 361 transitions, 816 flow. Second operand 3 states and 1222 transitions. [2023-11-29 06:32:08,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 404 transitions, 1170 flow [2023-11-29 06:32:08,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 404 transitions, 1148 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:32:08,076 INFO L231 Difference]: Finished difference. Result has 353 places, 352 transitions, 811 flow [2023-11-29 06:32:08,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=353, PETRI_TRANSITIONS=352} [2023-11-29 06:32:08,076 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -71 predicate places. [2023-11-29 06:32:08,077 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 352 transitions, 811 flow [2023-11-29 06:32:08,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:08,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:08,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:08,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 06:32:08,077 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:32:08,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:08,078 INFO L85 PathProgramCache]: Analyzing trace with hash -465735731, now seen corresponding path program 1 times [2023-11-29 06:32:08,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:08,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435613547] [2023-11-29 06:32:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:08,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:08,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:08,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435613547] [2023-11-29 06:32:08,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435613547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:08,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:08,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:32:08,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933608432] [2023-11-29 06:32:08,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:08,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:32:08,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:08,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:32:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:32:08,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 485 [2023-11-29 06:32:08,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 352 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:08,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:08,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 485 [2023-11-29 06:32:08,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:14,827 INFO L124 PetriNetUnfolderBase]: 22111/40690 cut-off events. [2023-11-29 06:32:14,827 INFO L125 PetriNetUnfolderBase]: For 17806/18548 co-relation queries the response was YES. [2023-11-29 06:32:15,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92101 conditions, 40690 events. 22111/40690 cut-off events. For 17806/18548 co-relation queries the response was YES. Maximal size of possible extension queue 1383. Compared 367690 event pairs, 5286 based on Foata normal form. 0/37494 useless extension candidates. Maximal degree in co-relation 54276. Up to 22753 conditions per place. [2023-11-29 06:32:15,346 INFO L140 encePairwiseOnDemand]: 480/485 looper letters, 94 selfloop transitions, 4 changer transitions 0/391 dead transitions. [2023-11-29 06:32:15,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 391 transitions, 1148 flow [2023-11-29 06:32:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:32:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:32:15,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1226 transitions. [2023-11-29 06:32:15,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8426116838487973 [2023-11-29 06:32:15,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1226 transitions. [2023-11-29 06:32:15,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1226 transitions. [2023-11-29 06:32:15,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:15,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1226 transitions. [2023-11-29 06:32:15,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,357 INFO L175 Difference]: Start difference. First operand has 353 places, 352 transitions, 811 flow. Second operand 3 states and 1226 transitions. [2023-11-29 06:32:15,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 391 transitions, 1148 flow [2023-11-29 06:32:15,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 391 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:32:15,381 INFO L231 Difference]: Finished difference. Result has 343 places, 354 transitions, 825 flow [2023-11-29 06:32:15,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=825, PETRI_PLACES=343, PETRI_TRANSITIONS=354} [2023-11-29 06:32:15,382 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -81 predicate places. [2023-11-29 06:32:15,382 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 354 transitions, 825 flow [2023-11-29 06:32:15,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:15,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:15,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 06:32:15,383 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:32:15,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:15,383 INFO L85 PathProgramCache]: Analyzing trace with hash -894439055, now seen corresponding path program 1 times [2023-11-29 06:32:15,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:15,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227291192] [2023-11-29 06:32:15,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:15,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:15,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:15,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227291192] [2023-11-29 06:32:15,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227291192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:15,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:15,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:32:15,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722876647] [2023-11-29 06:32:15,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:15,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:32:15,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:15,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:32:15,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:32:15,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 485 [2023-11-29 06:32:15,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 354 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:15,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 485 [2023-11-29 06:32:15,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:24,707 INFO L124 PetriNetUnfolderBase]: 30030/51967 cut-off events. [2023-11-29 06:32:24,707 INFO L125 PetriNetUnfolderBase]: For 26654/27493 co-relation queries the response was YES. [2023-11-29 06:32:25,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125110 conditions, 51967 events. 30030/51967 cut-off events. For 26654/27493 co-relation queries the response was YES. Maximal size of possible extension queue 1790. Compared 457182 event pairs, 16119 based on Foata normal form. 5/47934 useless extension candidates. Maximal degree in co-relation 59410. Up to 28380 conditions per place. [2023-11-29 06:32:25,402 INFO L140 encePairwiseOnDemand]: 480/485 looper letters, 99 selfloop transitions, 5 changer transitions 0/396 dead transitions. [2023-11-29 06:32:25,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 396 transitions, 1186 flow [2023-11-29 06:32:25,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:32:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:32:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1228 transitions. [2023-11-29 06:32:25,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8439862542955326 [2023-11-29 06:32:25,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1228 transitions. [2023-11-29 06:32:25,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1228 transitions. [2023-11-29 06:32:25,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:25,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1228 transitions. [2023-11-29 06:32:25,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:25,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:25,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:25,409 INFO L175 Difference]: Start difference. First operand has 343 places, 354 transitions, 825 flow. Second operand 3 states and 1228 transitions. [2023-11-29 06:32:25,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 396 transitions, 1186 flow [2023-11-29 06:32:25,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 396 transitions, 1174 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:32:25,434 INFO L231 Difference]: Finished difference. Result has 344 places, 356 transitions, 851 flow [2023-11-29 06:32:25,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=344, PETRI_TRANSITIONS=356} [2023-11-29 06:32:25,435 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -80 predicate places. [2023-11-29 06:32:25,435 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 356 transitions, 851 flow [2023-11-29 06:32:25,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:25,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:25,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:25,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 06:32:25,436 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-29 06:32:25,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:25,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1517719421, now seen corresponding path program 1 times [2023-11-29 06:32:25,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:25,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386890757] [2023-11-29 06:32:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:25,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:26,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:26,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386890757] [2023-11-29 06:32:26,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386890757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:26,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:26,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:32:26,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31282024] [2023-11-29 06:32:26,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:26,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:32:26,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:26,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:32:26,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:32:26,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-29 06:32:26,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 356 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:26,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:26,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-29 06:32:26,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand