./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:08,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:08,834 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:07:08,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:08,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:08,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:08,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:08,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:08,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:07:08,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:07:08,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:08,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:08,895 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:08,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:08,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:07:08,899 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:07:08,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:08,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:07:08,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:08,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:07:08,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:07:08,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:07:08,901 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:07:08,902 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:08,902 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:08,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:07:08,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:07:08,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:08,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:08,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:08,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:07:08,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:08,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:08,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:07:08,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:07:08,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:08,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:07:08,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:07:08,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:07:08,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:07:08,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:07:08,911 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_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea [2024-10-31 22:07:09,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:09,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:09,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:09,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:09,354 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:09,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c Unable to find full path for "g++" [2024-10-31 22:07:11,418 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:11,723 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:11,723 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2024-10-31 22:07:11,733 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/data/029212530/9b981785d3a94673be45d4fb6e390d83/FLAG26528eafa [2024-10-31 22:07:11,753 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/data/029212530/9b981785d3a94673be45d4fb6e390d83 [2024-10-31 22:07:11,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:11,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:11,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:11,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:11,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:11,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:11" (1/1) ... [2024-10-31 22:07:11,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4d0cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:11, skipping insertion in model container [2024-10-31 22:07:11,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:11" (1/1) ... [2024-10-31 22:07:11,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:12,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:12,181 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:12,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:12,380 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:12,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12 WrapperNode [2024-10-31 22:07:12,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:12,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:12,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:12,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:12,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,542 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 29, calls inlined = 35, statements flattened = 838 [2024-10-31 22:07:12,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:12,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:12,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:12,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:12,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:12,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:12,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:12,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:12,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (1/1) ... [2024-10-31 22:07:12,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:12,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:12,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:12,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdeebda-e2fc-4af2-92d3-0c1fc5d919c5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:07:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:07:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:07:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 22:07:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:07:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:07:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:07:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:07:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:07:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:07:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:07:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:07:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:07:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:07:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:12,848 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:07:13,089 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:13,091 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:14,561 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:07:14,561 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:15,745 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:15,749 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-10-31 22:07:15,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:15 BoogieIcfgContainer [2024-10-31 22:07:15,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:15,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:15,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:15,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:15,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:07:11" (1/3) ... [2024-10-31 22:07:15,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f900be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:15, skipping insertion in model container [2024-10-31 22:07:15,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:12" (2/3) ... [2024-10-31 22:07:15,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f900be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:15, skipping insertion in model container [2024-10-31 22:07:15,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:15" (3/3) ... [2024-10-31 22:07:15,764 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2024-10-31 22:07:15,785 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:15,786 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 133 error locations. [2024-10-31 22:07:15,786 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:07:16,026 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:07:16,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 817 places, 852 transitions, 1725 flow [2024-10-31 22:07:16,537 INFO L124 PetriNetUnfolderBase]: 45/849 cut-off events. [2024-10-31 22:07:16,538 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:07:16,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 849 events. 45/849 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1598 event pairs, 0 based on Foata normal form. 0/671 useless extension candidates. Maximal degree in co-relation 605. Up to 2 conditions per place. [2024-10-31 22:07:16,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 817 places, 852 transitions, 1725 flow [2024-10-31 22:07:16,573 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 798 places, 832 transitions, 1682 flow [2024-10-31 22:07:16,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:16,590 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20836af4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:16,590 INFO L334 AbstractCegarLoop]: Starting to check reachability of 234 error locations. [2024-10-31 22:07:16,595 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:07:16,595 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-31 22:07:16,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:16,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:16,596 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:16,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:16,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:16,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1705745168, now seen corresponding path program 1 times [2024-10-31 22:07:16,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:16,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039952554] [2024-10-31 22:07:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:16,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:16,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:16,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039952554] [2024-10-31 22:07:16,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039952554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:16,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:16,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:16,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675599142] [2024-10-31 22:07:16,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:16,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:16,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:16,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:16,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:16,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 852 [2024-10-31 22:07:16,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 798 places, 832 transitions, 1682 flow. Second operand has 3 states, 3 states have (on average 754.3333333333334) internal successors, (2263), 3 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:16,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:16,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 852 [2024-10-31 22:07:16,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:17,531 INFO L124 PetriNetUnfolderBase]: 58/1094 cut-off events. [2024-10-31 22:07:17,532 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-10-31 22:07:17,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 1094 events. 58/1094 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3553 event pairs, 19 based on Foata normal form. 77/979 useless extension candidates. Maximal degree in co-relation 784. Up to 65 conditions per place. [2024-10-31 22:07:17,552 INFO L140 encePairwiseOnDemand]: 770/852 looper letters, 14 selfloop transitions, 2 changer transitions 12/752 dead transitions. [2024-10-31 22:07:17,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 748 places, 752 transitions, 1554 flow [2024-10-31 22:07:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2355 transitions. [2024-10-31 22:07:17,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9213615023474179 [2024-10-31 22:07:17,580 INFO L175 Difference]: Start difference. First operand has 798 places, 832 transitions, 1682 flow. Second operand 3 states and 2355 transitions. [2024-10-31 22:07:17,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 748 places, 752 transitions, 1554 flow [2024-10-31 22:07:17,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 742 places, 752 transitions, 1542 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:07:17,606 INFO L231 Difference]: Finished difference. Result has 742 places, 740 transitions, 1490 flow [2024-10-31 22:07:17,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1510, PETRI_DIFFERENCE_MINUEND_PLACES=740, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=750, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1490, PETRI_PLACES=742, PETRI_TRANSITIONS=740} [2024-10-31 22:07:17,613 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -56 predicate places. [2024-10-31 22:07:17,613 INFO L471 AbstractCegarLoop]: Abstraction has has 742 places, 740 transitions, 1490 flow [2024-10-31 22:07:17,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 754.3333333333334) internal successors, (2263), 3 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:17,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:17,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:17,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:07:17,616 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:17,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:17,617 INFO L85 PathProgramCache]: Analyzing trace with hash 740870238, now seen corresponding path program 1 times [2024-10-31 22:07:17,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:17,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831521639] [2024-10-31 22:07:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:17,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:17,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:17,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831521639] [2024-10-31 22:07:17,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831521639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:17,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:17,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776854959] [2024-10-31 22:07:17,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:17,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:17,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:17,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 746 out of 852 [2024-10-31 22:07:17,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 742 places, 740 transitions, 1490 flow. Second operand has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:17,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:17,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 746 of 852 [2024-10-31 22:07:17,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:18,238 INFO L124 PetriNetUnfolderBase]: 118/1177 cut-off events. [2024-10-31 22:07:18,238 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:07:18,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 1177 events. 118/1177 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4323 event pairs, 67 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1344. Up to 168 conditions per place. [2024-10-31 22:07:18,258 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 21 selfloop transitions, 2 changer transitions 0/739 dead transitions. [2024-10-31 22:07:18,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 731 places, 739 transitions, 1534 flow [2024-10-31 22:07:18,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:18,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2262 transitions. [2024-10-31 22:07:18,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8849765258215962 [2024-10-31 22:07:18,263 INFO L175 Difference]: Start difference. First operand has 742 places, 740 transitions, 1490 flow. Second operand 3 states and 2262 transitions. [2024-10-31 22:07:18,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 731 places, 739 transitions, 1534 flow [2024-10-31 22:07:18,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 729 places, 739 transitions, 1530 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:18,276 INFO L231 Difference]: Finished difference. Result has 729 places, 739 transitions, 1488 flow [2024-10-31 22:07:18,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1484, PETRI_DIFFERENCE_MINUEND_PLACES=727, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=739, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=737, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1488, PETRI_PLACES=729, PETRI_TRANSITIONS=739} [2024-10-31 22:07:18,278 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -69 predicate places. [2024-10-31 22:07:18,278 INFO L471 AbstractCegarLoop]: Abstraction has has 729 places, 739 transitions, 1488 flow [2024-10-31 22:07:18,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:18,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:18,280 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:18,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:07:18,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:18,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:18,282 INFO L85 PathProgramCache]: Analyzing trace with hash -457459096, now seen corresponding path program 1 times [2024-10-31 22:07:18,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:18,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979569063] [2024-10-31 22:07:18,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:18,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:18,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:18,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979569063] [2024-10-31 22:07:18,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979569063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:18,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:18,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:18,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634128292] [2024-10-31 22:07:18,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:18,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:18,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:18,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:18,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:18,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 740 out of 852 [2024-10-31 22:07:18,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 739 transitions, 1488 flow. Second operand has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:18,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:18,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 740 of 852 [2024-10-31 22:07:18,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:19,082 INFO L124 PetriNetUnfolderBase]: 172/1301 cut-off events. [2024-10-31 22:07:19,082 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:07:19,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 1301 events. 172/1301 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5345 event pairs, 99 based on Foata normal form. 0/1127 useless extension candidates. Maximal degree in co-relation 1564. Up to 235 conditions per place. [2024-10-31 22:07:19,116 INFO L140 encePairwiseOnDemand]: 843/852 looper letters, 27 selfloop transitions, 3 changer transitions 0/738 dead transitions. [2024-10-31 22:07:19,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 725 places, 738 transitions, 1548 flow [2024-10-31 22:07:19,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:19,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2256 transitions. [2024-10-31 22:07:19,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8826291079812206 [2024-10-31 22:07:19,122 INFO L175 Difference]: Start difference. First operand has 729 places, 739 transitions, 1488 flow. Second operand 3 states and 2256 transitions. [2024-10-31 22:07:19,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 725 places, 738 transitions, 1548 flow [2024-10-31 22:07:19,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 723 places, 738 transitions, 1544 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:19,136 INFO L231 Difference]: Finished difference. Result has 723 places, 733 transitions, 1478 flow [2024-10-31 22:07:19,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1472, PETRI_DIFFERENCE_MINUEND_PLACES=721, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=730, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1478, PETRI_PLACES=723, PETRI_TRANSITIONS=733} [2024-10-31 22:07:19,139 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -75 predicate places. [2024-10-31 22:07:19,139 INFO L471 AbstractCegarLoop]: Abstraction has has 723 places, 733 transitions, 1478 flow [2024-10-31 22:07:19,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:19,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:19,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:19,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:07:19,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:19,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:19,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1450475615, now seen corresponding path program 1 times [2024-10-31 22:07:19,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:19,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233689094] [2024-10-31 22:07:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:19,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:19,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:19,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233689094] [2024-10-31 22:07:19,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233689094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:19,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:19,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:19,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121714946] [2024-10-31 22:07:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:19,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:19,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:19,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:19,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:19,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 741 out of 852 [2024-10-31 22:07:19,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 723 places, 733 transitions, 1478 flow. Second operand has 3 states, 3 states have (on average 742.3333333333334) internal successors, (2227), 3 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:19,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:19,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 741 of 852 [2024-10-31 22:07:19,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:20,238 INFO L124 PetriNetUnfolderBase]: 418/2446 cut-off events. [2024-10-31 22:07:20,238 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-10-31 22:07:20,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 2446 events. 418/2446 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 13216 event pairs, 235 based on Foata normal form. 0/2001 useless extension candidates. Maximal degree in co-relation 1984. Up to 557 conditions per place. [2024-10-31 22:07:20,267 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 26 selfloop transitions, 2 changer transitions 0/732 dead transitions. [2024-10-31 22:07:20,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 724 places, 732 transitions, 1532 flow [2024-10-31 22:07:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2252 transitions. [2024-10-31 22:07:20,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8810641627543035 [2024-10-31 22:07:20,273 INFO L175 Difference]: Start difference. First operand has 723 places, 733 transitions, 1478 flow. Second operand 3 states and 2252 transitions. [2024-10-31 22:07:20,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 724 places, 732 transitions, 1532 flow [2024-10-31 22:07:20,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 722 places, 732 transitions, 1526 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:20,343 INFO L231 Difference]: Finished difference. Result has 722 places, 732 transitions, 1474 flow [2024-10-31 22:07:20,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1470, PETRI_DIFFERENCE_MINUEND_PLACES=720, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=730, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1474, PETRI_PLACES=722, PETRI_TRANSITIONS=732} [2024-10-31 22:07:20,347 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -76 predicate places. [2024-10-31 22:07:20,348 INFO L471 AbstractCegarLoop]: Abstraction has has 722 places, 732 transitions, 1474 flow [2024-10-31 22:07:20,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 742.3333333333334) internal successors, (2227), 3 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:20,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:20,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:20,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:07:20,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:20,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:20,352 INFO L85 PathProgramCache]: Analyzing trace with hash 16345224, now seen corresponding path program 1 times [2024-10-31 22:07:20,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:20,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814481921] [2024-10-31 22:07:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:20,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:20,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814481921] [2024-10-31 22:07:20,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814481921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:20,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:20,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:20,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739745566] [2024-10-31 22:07:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:20,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:20,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:20,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:20,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:20,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 751 out of 852 [2024-10-31 22:07:20,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 722 places, 732 transitions, 1474 flow. Second operand has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:20,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:20,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 751 of 852 [2024-10-31 22:07:20,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:20,908 INFO L124 PetriNetUnfolderBase]: 58/1053 cut-off events. [2024-10-31 22:07:20,909 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:07:20,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 1053 events. 58/1053 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3329 event pairs, 19 based on Foata normal form. 0/902 useless extension candidates. Maximal degree in co-relation 1080. Up to 67 conditions per place. [2024-10-31 22:07:20,928 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 16 selfloop transitions, 2 changer transitions 0/731 dead transitions. [2024-10-31 22:07:20,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 723 places, 731 transitions, 1508 flow [2024-10-31 22:07:20,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2272 transitions. [2024-10-31 22:07:20,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-10-31 22:07:20,936 INFO L175 Difference]: Start difference. First operand has 722 places, 732 transitions, 1474 flow. Second operand 3 states and 2272 transitions. [2024-10-31 22:07:20,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 723 places, 731 transitions, 1508 flow [2024-10-31 22:07:20,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 721 places, 731 transitions, 1504 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:20,955 INFO L231 Difference]: Finished difference. Result has 721 places, 731 transitions, 1472 flow [2024-10-31 22:07:20,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1468, PETRI_DIFFERENCE_MINUEND_PLACES=719, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=731, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1472, PETRI_PLACES=721, PETRI_TRANSITIONS=731} [2024-10-31 22:07:20,959 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -77 predicate places. [2024-10-31 22:07:20,959 INFO L471 AbstractCegarLoop]: Abstraction has has 721 places, 731 transitions, 1472 flow [2024-10-31 22:07:20,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:20,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:20,961 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:20,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:07:20,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:20,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:20,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1578952280, now seen corresponding path program 1 times [2024-10-31 22:07:20,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:20,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146990016] [2024-10-31 22:07:20,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:20,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:21,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:21,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146990016] [2024-10-31 22:07:21,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146990016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:21,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:21,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:21,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955208371] [2024-10-31 22:07:21,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:21,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:21,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:21,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:21,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:21,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 852 [2024-10-31 22:07:21,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 721 places, 731 transitions, 1472 flow. Second operand has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:21,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:21,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 852 [2024-10-31 22:07:21,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:21,437 INFO L124 PetriNetUnfolderBase]: 68/1036 cut-off events. [2024-10-31 22:07:21,437 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-31 22:07:21,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 1036 events. 68/1036 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3230 event pairs, 11 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 1077. Up to 47 conditions per place. [2024-10-31 22:07:21,493 INFO L140 encePairwiseOnDemand]: 847/852 looper letters, 21 selfloop transitions, 3 changer transitions 0/737 dead transitions. [2024-10-31 22:07:21,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 721 places, 737 transitions, 1536 flow [2024-10-31 22:07:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:21,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2285 transitions. [2024-10-31 22:07:21,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8939749608763693 [2024-10-31 22:07:21,499 INFO L175 Difference]: Start difference. First operand has 721 places, 731 transitions, 1472 flow. Second operand 3 states and 2285 transitions. [2024-10-31 22:07:21,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 721 places, 737 transitions, 1536 flow [2024-10-31 22:07:21,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 719 places, 737 transitions, 1532 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:21,514 INFO L231 Difference]: Finished difference. Result has 721 places, 731 transitions, 1484 flow [2024-10-31 22:07:21,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1464, PETRI_DIFFERENCE_MINUEND_PLACES=717, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1484, PETRI_PLACES=721, PETRI_TRANSITIONS=731} [2024-10-31 22:07:21,519 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -77 predicate places. [2024-10-31 22:07:21,520 INFO L471 AbstractCegarLoop]: Abstraction has has 721 places, 731 transitions, 1484 flow [2024-10-31 22:07:21,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:21,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:21,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:21,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:07:21,522 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:21,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:21,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1712700147, now seen corresponding path program 1 times [2024-10-31 22:07:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:21,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023953437] [2024-10-31 22:07:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:21,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:21,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023953437] [2024-10-31 22:07:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023953437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:21,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:21,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:21,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842333373] [2024-10-31 22:07:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:21,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:21,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:21,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 748 out of 852 [2024-10-31 22:07:21,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 721 places, 731 transitions, 1484 flow. Second operand has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:21,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:21,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 748 of 852 [2024-10-31 22:07:21,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:22,284 INFO L124 PetriNetUnfolderBase]: 230/1671 cut-off events. [2024-10-31 22:07:22,284 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-10-31 22:07:22,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1671 events. 230/1671 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 8144 event pairs, 131 based on Foata normal form. 0/1391 useless extension candidates. Maximal degree in co-relation 1443. Up to 310 conditions per place. [2024-10-31 22:07:22,313 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 20 selfloop transitions, 2 changer transitions 0/730 dead transitions. [2024-10-31 22:07:22,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 722 places, 730 transitions, 1526 flow [2024-10-31 22:07:22,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:22,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2266 transitions. [2024-10-31 22:07:22,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8865414710485133 [2024-10-31 22:07:22,323 INFO L175 Difference]: Start difference. First operand has 721 places, 731 transitions, 1484 flow. Second operand 3 states and 2266 transitions. [2024-10-31 22:07:22,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 722 places, 730 transitions, 1526 flow [2024-10-31 22:07:22,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 720 places, 730 transitions, 1520 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:22,345 INFO L231 Difference]: Finished difference. Result has 720 places, 730 transitions, 1480 flow [2024-10-31 22:07:22,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1476, PETRI_DIFFERENCE_MINUEND_PLACES=718, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1480, PETRI_PLACES=720, PETRI_TRANSITIONS=730} [2024-10-31 22:07:22,348 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -78 predicate places. [2024-10-31 22:07:22,348 INFO L471 AbstractCegarLoop]: Abstraction has has 720 places, 730 transitions, 1480 flow [2024-10-31 22:07:22,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:22,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:22,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:22,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:07:22,352 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:22,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:22,353 INFO L85 PathProgramCache]: Analyzing trace with hash 140338817, now seen corresponding path program 1 times [2024-10-31 22:07:22,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:22,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046042265] [2024-10-31 22:07:22,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:22,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:22,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:22,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:22,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046042265] [2024-10-31 22:07:22,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046042265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:22,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:22,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:22,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106190818] [2024-10-31 22:07:22,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:22,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:22,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:22,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:22,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 852 [2024-10-31 22:07:22,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 730 transitions, 1480 flow. Second operand has 3 states, 3 states have (on average 753.3333333333334) internal successors, (2260), 3 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:22,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:22,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 852 [2024-10-31 22:07:22,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:22,856 INFO L124 PetriNetUnfolderBase]: 70/1098 cut-off events. [2024-10-31 22:07:22,856 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-31 22:07:22,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 1098 events. 70/1098 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3761 event pairs, 27 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1148. Up to 86 conditions per place. [2024-10-31 22:07:22,874 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 16 selfloop transitions, 2 changer transitions 0/729 dead transitions. [2024-10-31 22:07:22,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 721 places, 729 transitions, 1514 flow [2024-10-31 22:07:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:22,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2274 transitions. [2024-10-31 22:07:22,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8896713615023474 [2024-10-31 22:07:22,881 INFO L175 Difference]: Start difference. First operand has 720 places, 730 transitions, 1480 flow. Second operand 3 states and 2274 transitions. [2024-10-31 22:07:22,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 721 places, 729 transitions, 1514 flow [2024-10-31 22:07:22,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 719 places, 729 transitions, 1510 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:22,894 INFO L231 Difference]: Finished difference. Result has 719 places, 729 transitions, 1478 flow [2024-10-31 22:07:22,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1474, PETRI_DIFFERENCE_MINUEND_PLACES=717, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=727, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1478, PETRI_PLACES=719, PETRI_TRANSITIONS=729} [2024-10-31 22:07:22,896 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -79 predicate places. [2024-10-31 22:07:22,896 INFO L471 AbstractCegarLoop]: Abstraction has has 719 places, 729 transitions, 1478 flow [2024-10-31 22:07:22,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 753.3333333333334) internal successors, (2260), 3 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:22,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:22,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:22,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:07:22,899 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:22,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:22,900 INFO L85 PathProgramCache]: Analyzing trace with hash -363127821, now seen corresponding path program 1 times [2024-10-31 22:07:22,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:22,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329280400] [2024-10-31 22:07:22,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:22,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:22,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:22,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329280400] [2024-10-31 22:07:22,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329280400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:22,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:22,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:22,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922792559] [2024-10-31 22:07:22,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:22,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:22,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:22,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:22,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:22,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 751 out of 852 [2024-10-31 22:07:22,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 719 places, 729 transitions, 1478 flow. Second operand has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:22,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:22,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 751 of 852 [2024-10-31 22:07:22,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:23,372 INFO L124 PetriNetUnfolderBase]: 110/1240 cut-off events. [2024-10-31 22:07:23,373 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-31 22:07:23,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 1240 events. 110/1240 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4978 event pairs, 53 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 1346. Up to 142 conditions per place. [2024-10-31 22:07:23,390 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 17 selfloop transitions, 2 changer transitions 0/728 dead transitions. [2024-10-31 22:07:23,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 720 places, 728 transitions, 1514 flow [2024-10-31 22:07:23,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:23,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2272 transitions. [2024-10-31 22:07:23,396 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-10-31 22:07:23,397 INFO L175 Difference]: Start difference. First operand has 719 places, 729 transitions, 1478 flow. Second operand 3 states and 2272 transitions. [2024-10-31 22:07:23,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 720 places, 728 transitions, 1514 flow [2024-10-31 22:07:23,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 718 places, 728 transitions, 1510 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:23,409 INFO L231 Difference]: Finished difference. Result has 718 places, 728 transitions, 1476 flow [2024-10-31 22:07:23,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1472, PETRI_DIFFERENCE_MINUEND_PLACES=716, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=728, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1476, PETRI_PLACES=718, PETRI_TRANSITIONS=728} [2024-10-31 22:07:23,411 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -80 predicate places. [2024-10-31 22:07:23,412 INFO L471 AbstractCegarLoop]: Abstraction has has 718 places, 728 transitions, 1476 flow [2024-10-31 22:07:23,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:23,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:23,414 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:23,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:07:23,415 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:23,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash -805091486, now seen corresponding path program 1 times [2024-10-31 22:07:23,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:23,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226283862] [2024-10-31 22:07:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:23,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:23,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226283862] [2024-10-31 22:07:23,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226283862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:23,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:23,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:23,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852400010] [2024-10-31 22:07:23,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:23,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:23,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:23,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:23,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:23,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 852 [2024-10-31 22:07:23,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 718 places, 728 transitions, 1476 flow. Second operand has 3 states, 3 states have (on average 748.3333333333334) internal successors, (2245), 3 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:23,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:23,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 852 [2024-10-31 22:07:23,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:24,025 INFO L124 PetriNetUnfolderBase]: 208/1516 cut-off events. [2024-10-31 22:07:24,026 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-31 22:07:24,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1888 conditions, 1516 events. 208/1516 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7094 event pairs, 129 based on Foata normal form. 0/1231 useless extension candidates. Maximal degree in co-relation 1797. Up to 291 conditions per place. [2024-10-31 22:07:24,047 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 21 selfloop transitions, 2 changer transitions 0/727 dead transitions. [2024-10-31 22:07:24,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 719 places, 727 transitions, 1520 flow [2024-10-31 22:07:24,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:24,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2264 transitions. [2024-10-31 22:07:24,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8857589984350548 [2024-10-31 22:07:24,053 INFO L175 Difference]: Start difference. First operand has 718 places, 728 transitions, 1476 flow. Second operand 3 states and 2264 transitions. [2024-10-31 22:07:24,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 719 places, 727 transitions, 1520 flow [2024-10-31 22:07:24,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 717 places, 727 transitions, 1516 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:24,065 INFO L231 Difference]: Finished difference. Result has 717 places, 727 transitions, 1474 flow [2024-10-31 22:07:24,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1470, PETRI_DIFFERENCE_MINUEND_PLACES=715, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=725, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1474, PETRI_PLACES=717, PETRI_TRANSITIONS=727} [2024-10-31 22:07:24,067 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -81 predicate places. [2024-10-31 22:07:24,067 INFO L471 AbstractCegarLoop]: Abstraction has has 717 places, 727 transitions, 1474 flow [2024-10-31 22:07:24,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 748.3333333333334) internal successors, (2245), 3 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:24,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:24,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:24,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:07:24,070 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:24,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:24,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1248222832, now seen corresponding path program 1 times [2024-10-31 22:07:24,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:24,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162353117] [2024-10-31 22:07:24,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:24,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:24,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:24,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162353117] [2024-10-31 22:07:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162353117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:24,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:24,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:24,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398193622] [2024-10-31 22:07:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:24,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:24,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:24,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:24,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 748 out of 852 [2024-10-31 22:07:24,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 717 places, 727 transitions, 1474 flow. Second operand has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:24,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:24,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 748 of 852 [2024-10-31 22:07:24,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:24,547 INFO L124 PetriNetUnfolderBase]: 110/1238 cut-off events. [2024-10-31 22:07:24,548 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-31 22:07:24,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1430 conditions, 1238 events. 110/1238 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4888 event pairs, 53 based on Foata normal form. 0/1053 useless extension candidates. Maximal degree in co-relation 1331. Up to 145 conditions per place. [2024-10-31 22:07:24,563 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 20 selfloop transitions, 2 changer transitions 0/726 dead transitions. [2024-10-31 22:07:24,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 718 places, 726 transitions, 1516 flow [2024-10-31 22:07:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2266 transitions. [2024-10-31 22:07:24,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8865414710485133 [2024-10-31 22:07:24,570 INFO L175 Difference]: Start difference. First operand has 717 places, 727 transitions, 1474 flow. Second operand 3 states and 2266 transitions. [2024-10-31 22:07:24,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 718 places, 726 transitions, 1516 flow [2024-10-31 22:07:24,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 716 places, 726 transitions, 1512 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:24,582 INFO L231 Difference]: Finished difference. Result has 716 places, 726 transitions, 1472 flow [2024-10-31 22:07:24,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1468, PETRI_DIFFERENCE_MINUEND_PLACES=714, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1472, PETRI_PLACES=716, PETRI_TRANSITIONS=726} [2024-10-31 22:07:24,584 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -82 predicate places. [2024-10-31 22:07:24,584 INFO L471 AbstractCegarLoop]: Abstraction has has 716 places, 726 transitions, 1472 flow [2024-10-31 22:07:24,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:24,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:24,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:24,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:07:24,588 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:24,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:24,589 INFO L85 PathProgramCache]: Analyzing trace with hash -808374088, now seen corresponding path program 1 times [2024-10-31 22:07:24,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:24,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477994630] [2024-10-31 22:07:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:24,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:24,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:24,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:24,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477994630] [2024-10-31 22:07:24,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477994630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:24,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:24,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:24,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187250443] [2024-10-31 22:07:24,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:24,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:24,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:24,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:24,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:24,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 751 out of 852 [2024-10-31 22:07:24,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 716 places, 726 transitions, 1472 flow. Second operand has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:24,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:24,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 751 of 852 [2024-10-31 22:07:24,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:25,041 INFO L124 PetriNetUnfolderBase]: 110/1237 cut-off events. [2024-10-31 22:07:25,041 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-31 22:07:25,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 1237 events. 110/1237 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4832 event pairs, 53 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 1319. Up to 142 conditions per place. [2024-10-31 22:07:25,061 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 17 selfloop transitions, 2 changer transitions 0/725 dead transitions. [2024-10-31 22:07:25,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 725 transitions, 1508 flow [2024-10-31 22:07:25,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:25,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2272 transitions. [2024-10-31 22:07:25,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-10-31 22:07:25,068 INFO L175 Difference]: Start difference. First operand has 716 places, 726 transitions, 1472 flow. Second operand 3 states and 2272 transitions. [2024-10-31 22:07:25,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 717 places, 725 transitions, 1508 flow [2024-10-31 22:07:25,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 715 places, 725 transitions, 1504 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:25,081 INFO L231 Difference]: Finished difference. Result has 715 places, 725 transitions, 1470 flow [2024-10-31 22:07:25,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1466, PETRI_DIFFERENCE_MINUEND_PLACES=713, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=723, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1470, PETRI_PLACES=715, PETRI_TRANSITIONS=725} [2024-10-31 22:07:25,082 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -83 predicate places. [2024-10-31 22:07:25,083 INFO L471 AbstractCegarLoop]: Abstraction has has 715 places, 725 transitions, 1470 flow [2024-10-31 22:07:25,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:25,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:25,085 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:25,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:07:25,085 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:25,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash 848015721, now seen corresponding path program 1 times [2024-10-31 22:07:25,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:25,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568478118] [2024-10-31 22:07:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:25,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:25,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:25,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:25,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568478118] [2024-10-31 22:07:25,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568478118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:25,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:25,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:25,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286339280] [2024-10-31 22:07:25,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:25,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:25,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 852 [2024-10-31 22:07:25,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 715 places, 725 transitions, 1470 flow. Second operand has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:25,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:25,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 852 [2024-10-31 22:07:25,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:26,569 INFO L124 PetriNetUnfolderBase]: 252/4879 cut-off events. [2024-10-31 22:07:26,569 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-31 22:07:26,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5148 conditions, 4879 events. 252/4879 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 35872 event pairs, 79 based on Foata normal form. 0/3903 useless extension candidates. Maximal degree in co-relation 5033. Up to 214 conditions per place. [2024-10-31 22:07:26,627 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 16 selfloop transitions, 1 changer transitions 0/723 dead transitions. [2024-10-31 22:07:26,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 715 places, 723 transitions, 1500 flow [2024-10-31 22:07:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2277 transitions. [2024-10-31 22:07:26,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8908450704225352 [2024-10-31 22:07:26,635 INFO L175 Difference]: Start difference. First operand has 715 places, 725 transitions, 1470 flow. Second operand 3 states and 2277 transitions. [2024-10-31 22:07:26,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 715 places, 723 transitions, 1500 flow [2024-10-31 22:07:26,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 723 transitions, 1496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:26,652 INFO L231 Difference]: Finished difference. Result has 713 places, 723 transitions, 1464 flow [2024-10-31 22:07:26,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1462, PETRI_DIFFERENCE_MINUEND_PLACES=711, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=722, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1464, PETRI_PLACES=713, PETRI_TRANSITIONS=723} [2024-10-31 22:07:26,655 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -85 predicate places. [2024-10-31 22:07:26,655 INFO L471 AbstractCegarLoop]: Abstraction has has 713 places, 723 transitions, 1464 flow [2024-10-31 22:07:26,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:26,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:26,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:26,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:07:26,658 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:26,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2104301585, now seen corresponding path program 1 times [2024-10-31 22:07:26,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:26,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100035086] [2024-10-31 22:07:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:26,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:27,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:27,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100035086] [2024-10-31 22:07:27,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100035086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:27,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:27,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:07:27,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756206990] [2024-10-31 22:07:27,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:27,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:07:27,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:27,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:07:27,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:07:28,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 670 out of 852 [2024-10-31 22:07:28,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 723 transitions, 1464 flow. Second operand has 6 states, 6 states have (on average 671.5) internal successors, (4029), 6 states have internal predecessors, (4029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:28,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:28,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 670 of 852 [2024-10-31 22:07:28,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:31,654 INFO L124 PetriNetUnfolderBase]: 2081/10266 cut-off events. [2024-10-31 22:07:31,655 INFO L125 PetriNetUnfolderBase]: For 690/690 co-relation queries the response was YES. [2024-10-31 22:07:31,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13600 conditions, 10266 events. 2081/10266 cut-off events. For 690/690 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 91800 event pairs, 1421 based on Foata normal form. 0/8441 useless extension candidates. Maximal degree in co-relation 13486. Up to 2842 conditions per place. [2024-10-31 22:07:31,820 INFO L140 encePairwiseOnDemand]: 828/852 looper letters, 78 selfloop transitions, 20 changer transitions 0/719 dead transitions. [2024-10-31 22:07:31,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 714 places, 719 transitions, 1652 flow [2024-10-31 22:07:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:07:31,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:07:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4121 transitions. [2024-10-31 22:07:31,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8061424100156495 [2024-10-31 22:07:31,835 INFO L175 Difference]: Start difference. First operand has 713 places, 723 transitions, 1464 flow. Second operand 6 states and 4121 transitions. [2024-10-31 22:07:31,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 714 places, 719 transitions, 1652 flow [2024-10-31 22:07:31,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 719 transitions, 1651 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:07:31,857 INFO L231 Difference]: Finished difference. Result has 713 places, 719 transitions, 1495 flow [2024-10-31 22:07:31,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1455, PETRI_DIFFERENCE_MINUEND_PLACES=708, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1495, PETRI_PLACES=713, PETRI_TRANSITIONS=719} [2024-10-31 22:07:31,860 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -85 predicate places. [2024-10-31 22:07:31,861 INFO L471 AbstractCegarLoop]: Abstraction has has 713 places, 719 transitions, 1495 flow [2024-10-31 22:07:31,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 671.5) internal successors, (4029), 6 states have internal predecessors, (4029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:31,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:31,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:31,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:07:31,866 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:31,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:31,866 INFO L85 PathProgramCache]: Analyzing trace with hash 446710845, now seen corresponding path program 1 times [2024-10-31 22:07:31,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:31,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371162929] [2024-10-31 22:07:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:31,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371162929] [2024-10-31 22:07:31,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371162929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:31,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:31,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:31,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4482984] [2024-10-31 22:07:31,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:31,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:31,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:31,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:31,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:32,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 852 [2024-10-31 22:07:32,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 719 transitions, 1495 flow. Second operand has 3 states, 3 states have (on average 751.3333333333334) internal successors, (2254), 3 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:32,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 852 [2024-10-31 22:07:32,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:32,719 INFO L124 PetriNetUnfolderBase]: 190/1516 cut-off events. [2024-10-31 22:07:32,719 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-31 22:07:32,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1851 conditions, 1516 events. 190/1516 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7149 event pairs, 105 based on Foata normal form. 0/1266 useless extension candidates. Maximal degree in co-relation 1787. Up to 253 conditions per place. [2024-10-31 22:07:32,738 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 18 selfloop transitions, 2 changer transitions 0/718 dead transitions. [2024-10-31 22:07:32,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 714 places, 718 transitions, 1533 flow [2024-10-31 22:07:32,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:32,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:32,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2270 transitions. [2024-10-31 22:07:32,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8881064162754304 [2024-10-31 22:07:32,744 INFO L175 Difference]: Start difference. First operand has 713 places, 719 transitions, 1495 flow. Second operand 3 states and 2270 transitions. [2024-10-31 22:07:32,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 714 places, 718 transitions, 1533 flow [2024-10-31 22:07:32,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 709 places, 718 transitions, 1493 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:07:32,757 INFO L231 Difference]: Finished difference. Result has 709 places, 718 transitions, 1457 flow [2024-10-31 22:07:32,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1453, PETRI_DIFFERENCE_MINUEND_PLACES=707, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1457, PETRI_PLACES=709, PETRI_TRANSITIONS=718} [2024-10-31 22:07:32,759 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -89 predicate places. [2024-10-31 22:07:32,759 INFO L471 AbstractCegarLoop]: Abstraction has has 709 places, 718 transitions, 1457 flow [2024-10-31 22:07:32,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 751.3333333333334) internal successors, (2254), 3 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:32,761 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:32,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:07:32,762 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:32,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1866721520, now seen corresponding path program 1 times [2024-10-31 22:07:32,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:32,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048349083] [2024-10-31 22:07:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:32,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:32,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:32,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048349083] [2024-10-31 22:07:32,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048349083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:32,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:32,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:32,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933874818] [2024-10-31 22:07:32,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:32,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:32,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:32,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:32,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 741 out of 852 [2024-10-31 22:07:32,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 709 places, 718 transitions, 1457 flow. Second operand has 3 states, 3 states have (on average 742.0) internal successors, (2226), 3 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:32,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 741 of 852 [2024-10-31 22:07:32,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:35,356 INFO L124 PetriNetUnfolderBase]: 681/9111 cut-off events. [2024-10-31 22:07:35,357 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-10-31 22:07:35,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9940 conditions, 9111 events. 681/9111 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 83806 event pairs, 287 based on Foata normal form. 0/7285 useless extension candidates. Maximal degree in co-relation 9825. Up to 689 conditions per place. [2024-10-31 22:07:35,427 INFO L140 encePairwiseOnDemand]: 845/852 looper letters, 24 selfloop transitions, 1 changer transitions 0/712 dead transitions. [2024-10-31 22:07:35,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 712 transitions, 1495 flow [2024-10-31 22:07:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:35,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:35,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2253 transitions. [2024-10-31 22:07:35,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8814553990610329 [2024-10-31 22:07:35,434 INFO L175 Difference]: Start difference. First operand has 709 places, 718 transitions, 1457 flow. Second operand 3 states and 2253 transitions. [2024-10-31 22:07:35,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 705 places, 712 transitions, 1495 flow [2024-10-31 22:07:35,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 703 places, 712 transitions, 1491 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:35,450 INFO L231 Difference]: Finished difference. Result has 703 places, 712 transitions, 1443 flow [2024-10-31 22:07:35,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1441, PETRI_DIFFERENCE_MINUEND_PLACES=701, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1443, PETRI_PLACES=703, PETRI_TRANSITIONS=712} [2024-10-31 22:07:35,452 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -95 predicate places. [2024-10-31 22:07:35,452 INFO L471 AbstractCegarLoop]: Abstraction has has 703 places, 712 transitions, 1443 flow [2024-10-31 22:07:35,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 742.0) internal successors, (2226), 3 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:35,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:35,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:35,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:07:35,454 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:35,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:35,454 INFO L85 PathProgramCache]: Analyzing trace with hash 780127852, now seen corresponding path program 1 times [2024-10-31 22:07:35,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:35,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068270871] [2024-10-31 22:07:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:35,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:35,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:35,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068270871] [2024-10-31 22:07:35,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068270871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:35,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:35,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:35,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357379014] [2024-10-31 22:07:35,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:35,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:35,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:35,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:35,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 751 out of 852 [2024-10-31 22:07:35,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 712 transitions, 1443 flow. Second operand has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:35,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:35,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 751 of 852 [2024-10-31 22:07:35,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:36,263 INFO L124 PetriNetUnfolderBase]: 131/1261 cut-off events. [2024-10-31 22:07:36,263 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-10-31 22:07:36,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 1261 events. 131/1261 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5006 event pairs, 71 based on Foata normal form. 0/1076 useless extension candidates. Maximal degree in co-relation 1379. Up to 175 conditions per place. [2024-10-31 22:07:36,283 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 17 selfloop transitions, 2 changer transitions 0/711 dead transitions. [2024-10-31 22:07:36,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 704 places, 711 transitions, 1479 flow [2024-10-31 22:07:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2272 transitions. [2024-10-31 22:07:36,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-10-31 22:07:36,291 INFO L175 Difference]: Start difference. First operand has 703 places, 712 transitions, 1443 flow. Second operand 3 states and 2272 transitions. [2024-10-31 22:07:36,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 704 places, 711 transitions, 1479 flow [2024-10-31 22:07:36,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 703 places, 711 transitions, 1478 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:07:36,308 INFO L231 Difference]: Finished difference. Result has 703 places, 711 transitions, 1444 flow [2024-10-31 22:07:36,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=701, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=709, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1444, PETRI_PLACES=703, PETRI_TRANSITIONS=711} [2024-10-31 22:07:36,310 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -95 predicate places. [2024-10-31 22:07:36,310 INFO L471 AbstractCegarLoop]: Abstraction has has 703 places, 711 transitions, 1444 flow [2024-10-31 22:07:36,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:36,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:36,312 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:36,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:07:36,312 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:36,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:36,313 INFO L85 PathProgramCache]: Analyzing trace with hash 936091404, now seen corresponding path program 1 times [2024-10-31 22:07:36,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:36,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228347254] [2024-10-31 22:07:36,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:36,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:36,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:36,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228347254] [2024-10-31 22:07:36,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228347254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:36,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:36,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249623385] [2024-10-31 22:07:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:36,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:36,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:36,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:36,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 756 out of 852 [2024-10-31 22:07:36,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 711 transitions, 1444 flow. Second operand has 3 states, 3 states have (on average 757.0) internal successors, (2271), 3 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:36,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:36,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 756 of 852 [2024-10-31 22:07:36,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:36,874 INFO L124 PetriNetUnfolderBase]: 70/1071 cut-off events. [2024-10-31 22:07:36,874 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-31 22:07:36,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 1071 events. 70/1071 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3634 event pairs, 27 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1080. Up to 83 conditions per place. [2024-10-31 22:07:36,886 INFO L140 encePairwiseOnDemand]: 850/852 looper letters, 14 selfloop transitions, 1 changer transitions 0/710 dead transitions. [2024-10-31 22:07:36,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 704 places, 710 transitions, 1472 flow [2024-10-31 22:07:36,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:36,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2283 transitions. [2024-10-31 22:07:36,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931924882629108 [2024-10-31 22:07:36,895 INFO L175 Difference]: Start difference. First operand has 703 places, 711 transitions, 1444 flow. Second operand 3 states and 2283 transitions. [2024-10-31 22:07:36,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 704 places, 710 transitions, 1472 flow [2024-10-31 22:07:36,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 702 places, 710 transitions, 1468 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:36,913 INFO L231 Difference]: Finished difference. Result has 702 places, 710 transitions, 1440 flow [2024-10-31 22:07:36,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=700, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=709, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1440, PETRI_PLACES=702, PETRI_TRANSITIONS=710} [2024-10-31 22:07:36,915 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -96 predicate places. [2024-10-31 22:07:36,915 INFO L471 AbstractCegarLoop]: Abstraction has has 702 places, 710 transitions, 1440 flow [2024-10-31 22:07:36,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 757.0) internal successors, (2271), 3 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:36,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:36,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:36,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:07:36,917 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:36,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:36,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1148610698, now seen corresponding path program 1 times [2024-10-31 22:07:36,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:36,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267104417] [2024-10-31 22:07:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:37,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:37,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:37,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267104417] [2024-10-31 22:07:37,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267104417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:37,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:37,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:37,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994124890] [2024-10-31 22:07:37,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:37,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:37,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:37,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:37,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:37,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 852 [2024-10-31 22:07:37,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 702 places, 710 transitions, 1440 flow. Second operand has 3 states, 3 states have (on average 754.3333333333334) internal successors, (2263), 3 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:37,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:37,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 852 [2024-10-31 22:07:37,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:37,364 INFO L124 PetriNetUnfolderBase]: 70/1070 cut-off events. [2024-10-31 22:07:37,364 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-31 22:07:37,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 1070 events. 70/1070 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3624 event pairs, 27 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1080. Up to 85 conditions per place. [2024-10-31 22:07:37,376 INFO L140 encePairwiseOnDemand]: 849/852 looper letters, 15 selfloop transitions, 2 changer transitions 0/709 dead transitions. [2024-10-31 22:07:37,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 709 transitions, 1472 flow [2024-10-31 22:07:37,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2276 transitions. [2024-10-31 22:07:37,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8904538341158059 [2024-10-31 22:07:37,381 INFO L175 Difference]: Start difference. First operand has 702 places, 710 transitions, 1440 flow. Second operand 3 states and 2276 transitions. [2024-10-31 22:07:37,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 703 places, 709 transitions, 1472 flow [2024-10-31 22:07:37,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 702 places, 709 transitions, 1471 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:07:37,398 INFO L231 Difference]: Finished difference. Result has 702 places, 709 transitions, 1441 flow [2024-10-31 22:07:37,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=1437, PETRI_DIFFERENCE_MINUEND_PLACES=700, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=707, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1441, PETRI_PLACES=702, PETRI_TRANSITIONS=709} [2024-10-31 22:07:37,399 INFO L277 CegarLoopForPetriNet]: 798 programPoint places, -96 predicate places. [2024-10-31 22:07:37,400 INFO L471 AbstractCegarLoop]: Abstraction has has 702 places, 709 transitions, 1441 flow [2024-10-31 22:07:37,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 754.3333333333334) internal successors, (2263), 3 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:37,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:37,401 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:37,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:07:37,402 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 230 more)] === [2024-10-31 22:07:37,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1102053112, now seen corresponding path program 1 times [2024-10-31 22:07:37,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:37,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060647440] [2024-10-31 22:07:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:37,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:37,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:37,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060647440] [2024-10-31 22:07:37,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060647440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:37,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:37,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:37,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681223463] [2024-10-31 22:07:37,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:37,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:37,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:37,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:37,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 852 [2024-10-31 22:07:37,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 702 places, 709 transitions, 1441 flow. Second operand has 3 states, 3 states have (on average 702.0) internal successors, (2106), 3 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:37,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:37,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 852 [2024-10-31 22:07:37,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand