./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:20:01,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:20:01,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:20:01,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:20:01,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:20:01,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:20:01,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:20:01,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:20:01,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:20:01,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:20:01,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:20:01,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:20:01,858 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:20:01,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:20:01,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:20:01,860 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:20:01,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:20:01,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:20:01,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:20:01,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:20:01,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:20:01,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:20:01,867 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:20:01,867 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:20:01,868 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:20:01,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:20:01,869 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:20:01,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:20:01,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:20:01,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:20:01,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:01,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:20:01,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:20:01,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:20:01,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:20:01,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:20:01,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:20:01,875 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:20:01,876 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:20:01,876 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:20:01,877 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:20:01,877 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_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2023-11-06 22:20:02,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:20:02,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:20:02,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:20:02,254 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:20:02,255 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:20:02,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-06 22:20:05,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:20:05,686 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:20:05,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-06 22:20:05,705 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/data/b6ed28fc9/310e75539d9648a7b9232764f59738b7/FLAGb87f87b75 [2023-11-06 22:20:05,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/data/b6ed28fc9/310e75539d9648a7b9232764f59738b7 [2023-11-06 22:20:05,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:20:05,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:20:05,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:05,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:20:05,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:20:05,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:05" (1/1) ... [2023-11-06 22:20:05,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ad8976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:05, skipping insertion in model container [2023-11-06 22:20:05,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:05" (1/1) ... [2023-11-06 22:20:05,787 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:20:06,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:06,098 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:20:06,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:06,178 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:06,178 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:06,186 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:20:06,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06 WrapperNode [2023-11-06 22:20:06,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:06,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:06,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:20:06,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:20:06,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,255 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 272 [2023-11-06 22:20:06,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:06,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:20:06,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:20:06,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:20:06,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,333 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:20:06,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:20:06,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:20:06,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:20:06,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (1/1) ... [2023-11-06 22:20:06,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:06,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:06,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:20:06,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394c4207-741c-4779-8379-5b05ac8b5cea/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:20:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:20:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:20:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:20:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:20:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:20:06,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:20:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:20:06,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:20:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:20:06,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:20:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-06 22:20:06,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-06 22:20:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:20:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-06 22:20:06,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-06 22:20:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:20:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:20:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:20:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:20:06,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:20:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:20:06,446 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:20:06,627 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:20:06,629 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:20:07,421 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:20:07,882 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:20:07,882 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 22:20:07,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:07 BoogieIcfgContainer [2023-11-06 22:20:07,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:20:07,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:20:07,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:20:07,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:20:07,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:20:05" (1/3) ... [2023-11-06 22:20:07,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36384b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:07, skipping insertion in model container [2023-11-06 22:20:07,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:06" (2/3) ... [2023-11-06 22:20:07,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36384b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:07, skipping insertion in model container [2023-11-06 22:20:07,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:07" (3/3) ... [2023-11-06 22:20:07,901 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2023-11-06 22:20:07,912 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:20:07,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:20:07,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2023-11-06 22:20:07,924 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:20:08,070 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-06 22:20:08,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 309 places, 307 transitions, 649 flow [2023-11-06 22:20:08,304 INFO L124 PetriNetUnfolderBase]: 14/302 cut-off events. [2023-11-06 22:20:08,305 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 22:20:08,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 302 events. 14/302 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 456 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 224. Up to 2 conditions per place. [2023-11-06 22:20:08,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 309 places, 307 transitions, 649 flow [2023-11-06 22:20:08,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 275 transitions, 580 flow [2023-11-06 22:20:08,329 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:20:08,338 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 275 transitions, 580 flow [2023-11-06 22:20:08,341 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 275 transitions, 580 flow [2023-11-06 22:20:08,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 275 transitions, 580 flow [2023-11-06 22:20:08,413 INFO L124 PetriNetUnfolderBase]: 13/275 cut-off events. [2023-11-06 22:20:08,413 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 22:20:08,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 275 events. 13/275 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 457 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 224. Up to 2 conditions per place. [2023-11-06 22:20:08,432 INFO L119 LiptonReduction]: Number of co-enabled transitions 15554 [2023-11-06 22:20:26,916 INFO L134 LiptonReduction]: Checked pairs total: 111505 [2023-11-06 22:20:26,917 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-11-06 22:20:26,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:20:26,939 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5407373b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:20:26,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2023-11-06 22:20:26,942 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:20:26,942 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:20:26,942 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:20:26,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:26,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:20:26,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:20:26,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:26,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1539, now seen corresponding path program 1 times [2023-11-06 22:20:26,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:26,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463083128] [2023-11-06 22:20:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:26,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:27,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:27,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463083128] [2023-11-06 22:20:27,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463083128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:27,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:27,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:20:27,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209145789] [2023-11-06 22:20:27,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:27,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:20:27,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:20:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:20:27,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 525 [2023-11-06 22:20:27,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 240.5) internal successors, (481), 2 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:27,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:27,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 525 [2023-11-06 22:20:27,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:29,632 INFO L124 PetriNetUnfolderBase]: 7982/12999 cut-off events. [2023-11-06 22:20:29,632 INFO L125 PetriNetUnfolderBase]: For 611/611 co-relation queries the response was YES. [2023-11-06 22:20:29,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23706 conditions, 12999 events. 7982/12999 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 89423 event pairs, 5205 based on Foata normal form. 2697/13051 useless extension candidates. Maximal degree in co-relation 19722. Up to 9858 conditions per place. [2023-11-06 22:20:29,788 INFO L140 encePairwiseOnDemand]: 476/525 looper letters, 34 selfloop transitions, 0 changer transitions 3/73 dead transitions. [2023-11-06 22:20:29,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 250 flow [2023-11-06 22:20:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:20:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:20:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions. [2023-11-06 22:20:29,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.539047619047619 [2023-11-06 22:20:29,813 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 566 transitions. [2023-11-06 22:20:29,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 566 transitions. [2023-11-06 22:20:29,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:29,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 566 transitions. [2023-11-06 22:20:29,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 283.0) internal successors, (566), 2 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:29,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 525.0) internal successors, (1575), 3 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:29,839 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 525.0) internal successors, (1575), 3 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:29,841 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 274 flow. Second operand 2 states and 566 transitions. [2023-11-06 22:20:29,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 73 transitions, 250 flow [2023-11-06 22:20:29,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 73 transitions, 230 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-11-06 22:20:29,940 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 148 flow [2023-11-06 22:20:29,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=148, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2023-11-06 22:20:29,947 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -54 predicate places. [2023-11-06 22:20:29,948 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 148 flow [2023-11-06 22:20:29,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 240.5) internal successors, (481), 2 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:29,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:29,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:29,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:20:29,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:20:29,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:29,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1575812123, now seen corresponding path program 1 times [2023-11-06 22:20:29,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:29,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097002131] [2023-11-06 22:20:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:29,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:30,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:30,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:30,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097002131] [2023-11-06 22:20:30,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097002131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:30,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:30,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:30,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454033916] [2023-11-06 22:20:30,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:30,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:30,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:30,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:30,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:30,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 525 [2023-11-06 22:20:30,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:30,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:30,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 525 [2023-11-06 22:20:30,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:34,646 INFO L124 PetriNetUnfolderBase]: 24840/35726 cut-off events. [2023-11-06 22:20:34,646 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2023-11-06 22:20:34,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68168 conditions, 35726 events. 24840/35726 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 1158. Compared 215188 event pairs, 20304 based on Foata normal form. 0/30116 useless extension candidates. Maximal degree in co-relation 68165. Up to 31316 conditions per place. [2023-11-06 22:20:35,015 INFO L140 encePairwiseOnDemand]: 520/525 looper letters, 39 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2023-11-06 22:20:35,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 220 flow [2023-11-06 22:20:35,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:35,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2023-11-06 22:20:35,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4488888888888889 [2023-11-06 22:20:35,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2023-11-06 22:20:35,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2023-11-06 22:20:35,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:35,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2023-11-06 22:20:35,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:35,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 525.0) internal successors, (2100), 4 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:35,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 525.0) internal successors, (2100), 4 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:35,045 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 148 flow. Second operand 3 states and 707 transitions. [2023-11-06 22:20:35,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 220 flow [2023-11-06 22:20:35,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 66 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:20:35,050 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 142 flow [2023-11-06 22:20:35,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2023-11-06 22:20:35,051 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -59 predicate places. [2023-11-06 22:20:35,052 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 142 flow [2023-11-06 22:20:35,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:35,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:35,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:35,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:20:35,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:20:35,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:35,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1822114370, now seen corresponding path program 1 times [2023-11-06 22:20:35,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:35,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543731190] [2023-11-06 22:20:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:35,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:35,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:35,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543731190] [2023-11-06 22:20:35,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543731190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:35,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:35,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:35,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316099186] [2023-11-06 22:20:35,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:35,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:35,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:35,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:35,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:35,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 525 [2023-11-06 22:20:35,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:35,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:35,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 525 [2023-11-06 22:20:35,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:37,468 INFO L124 PetriNetUnfolderBase]: 7980/14143 cut-off events. [2023-11-06 22:20:37,469 INFO L125 PetriNetUnfolderBase]: For 150/150 co-relation queries the response was YES. [2023-11-06 22:20:37,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24344 conditions, 14143 events. 7980/14143 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 110370 event pairs, 5203 based on Foata normal form. 0/11460 useless extension candidates. Maximal degree in co-relation 24340. Up to 9851 conditions per place. [2023-11-06 22:20:37,587 INFO L140 encePairwiseOnDemand]: 522/525 looper letters, 33 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2023-11-06 22:20:37,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 214 flow [2023-11-06 22:20:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:37,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 732 transitions. [2023-11-06 22:20:37,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46476190476190476 [2023-11-06 22:20:37,591 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 732 transitions. [2023-11-06 22:20:37,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 732 transitions. [2023-11-06 22:20:37,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:37,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 732 transitions. [2023-11-06 22:20:37,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:37,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 525.0) internal successors, (2100), 4 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:37,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 525.0) internal successors, (2100), 4 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:37,603 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 142 flow. Second operand 3 states and 732 transitions. [2023-11-06 22:20:37,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 214 flow [2023-11-06 22:20:37,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 67 transitions, 213 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:37,607 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 153 flow [2023-11-06 22:20:37,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2023-11-06 22:20:37,609 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -57 predicate places. [2023-11-06 22:20:37,610 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 153 flow [2023-11-06 22:20:37,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:37,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:37,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:37,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:20:37,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:20:37,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:37,618 INFO L85 PathProgramCache]: Analyzing trace with hash 660528067, now seen corresponding path program 1 times [2023-11-06 22:20:37,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:37,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957519272] [2023-11-06 22:20:37,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:37,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:20:38,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:38,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957519272] [2023-11-06 22:20:38,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957519272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:38,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:20:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360008560] [2023-11-06 22:20:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:38,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:20:38,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:38,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:20:38,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:20:38,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 525 [2023-11-06 22:20:38,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:38,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:38,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 525 [2023-11-06 22:20:38,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:43,765 INFO L124 PetriNetUnfolderBase]: 33842/44073 cut-off events. [2023-11-06 22:20:43,765 INFO L125 PetriNetUnfolderBase]: For 168/182 co-relation queries the response was YES. [2023-11-06 22:20:43,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85458 conditions, 44073 events. 33842/44073 cut-off events. For 168/182 co-relation queries the response was YES. Maximal size of possible extension queue 1950. Compared 245143 event pairs, 12039 based on Foata normal form. 4/37688 useless extension candidates. Maximal degree in co-relation 85453. Up to 27012 conditions per place. [2023-11-06 22:20:44,136 INFO L140 encePairwiseOnDemand]: 517/525 looper letters, 98 selfloop transitions, 13 changer transitions 0/137 dead transitions. [2023-11-06 22:20:44,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 137 transitions, 518 flow [2023-11-06 22:20:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:20:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:20:44,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1467 transitions. [2023-11-06 22:20:44,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4657142857142857 [2023-11-06 22:20:44,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1467 transitions. [2023-11-06 22:20:44,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1467 transitions. [2023-11-06 22:20:44,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:44,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1467 transitions. [2023-11-06 22:20:44,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.5) internal successors, (1467), 6 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:44,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 525.0) internal successors, (3675), 7 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:44,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 525.0) internal successors, (3675), 7 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:44,163 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 153 flow. Second operand 6 states and 1467 transitions. [2023-11-06 22:20:44,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 137 transitions, 518 flow [2023-11-06 22:20:44,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 137 transitions, 514 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:44,172 INFO L231 Difference]: Finished difference. Result has 81 places, 79 transitions, 239 flow [2023-11-06 22:20:44,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=81, PETRI_TRANSITIONS=79} [2023-11-06 22:20:44,176 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -48 predicate places. [2023-11-06 22:20:44,176 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 79 transitions, 239 flow [2023-11-06 22:20:44,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:44,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:44,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:44,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:20:44,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:20:44,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:44,179 INFO L85 PathProgramCache]: Analyzing trace with hash 97681545, now seen corresponding path program 1 times [2023-11-06 22:20:44,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:44,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558127173] [2023-11-06 22:20:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:44,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:44,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:20:44,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:44,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558127173] [2023-11-06 22:20:44,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558127173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:44,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:44,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:20:44,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335410652] [2023-11-06 22:20:44,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:44,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:20:44,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:44,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:20:44,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:20:45,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 525 [2023-11-06 22:20:45,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 239 flow. Second operand has 9 states, 9 states have (on average 223.22222222222223) internal successors, (2009), 9 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:45,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:45,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 525 [2023-11-06 22:20:45,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:50,822 INFO L124 PetriNetUnfolderBase]: 31662/41689 cut-off events. [2023-11-06 22:20:50,822 INFO L125 PetriNetUnfolderBase]: For 6832/7272 co-relation queries the response was YES. [2023-11-06 22:20:50,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95448 conditions, 41689 events. 31662/41689 cut-off events. For 6832/7272 co-relation queries the response was YES. Maximal size of possible extension queue 1814. Compared 232087 event pairs, 4713 based on Foata normal form. 440/36464 useless extension candidates. Maximal degree in co-relation 95439. Up to 13828 conditions per place. [2023-11-06 22:20:51,112 INFO L140 encePairwiseOnDemand]: 518/525 looper letters, 103 selfloop transitions, 9 changer transitions 0/138 dead transitions. [2023-11-06 22:20:51,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 138 transitions, 595 flow [2023-11-06 22:20:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:20:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:20:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1868 transitions. [2023-11-06 22:20:51,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44476190476190475 [2023-11-06 22:20:51,122 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1868 transitions. [2023-11-06 22:20:51,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1868 transitions. [2023-11-06 22:20:51,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:51,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1868 transitions. [2023-11-06 22:20:51,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 233.5) internal successors, (1868), 8 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:51,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 525.0) internal successors, (4725), 9 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:51,146 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 525.0) internal successors, (4725), 9 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:51,146 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 239 flow. Second operand 8 states and 1868 transitions. [2023-11-06 22:20:51,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 138 transitions, 595 flow [2023-11-06 22:20:51,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 138 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:51,680 INFO L231 Difference]: Finished difference. Result has 86 places, 78 transitions, 249 flow [2023-11-06 22:20:51,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=249, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2023-11-06 22:20:51,682 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -43 predicate places. [2023-11-06 22:20:51,682 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 249 flow [2023-11-06 22:20:51,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 223.22222222222223) internal successors, (2009), 9 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:51,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:51,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:51,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:20:51,684 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:20:51,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1727609369, now seen corresponding path program 1 times [2023-11-06 22:20:51,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:51,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076336962] [2023-11-06 22:20:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:51,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:20:51,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:51,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076336962] [2023-11-06 22:20:51,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076336962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:51,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:51,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:20:51,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108209789] [2023-11-06 22:20:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:51,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:51,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:51,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 525 [2023-11-06 22:20:51,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 238.5) internal successors, (954), 4 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:51,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:51,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 525 [2023-11-06 22:20:51,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:56,391 INFO L124 PetriNetUnfolderBase]: 22559/35447 cut-off events. [2023-11-06 22:20:56,391 INFO L125 PetriNetUnfolderBase]: For 13318/13823 co-relation queries the response was YES. [2023-11-06 22:20:56,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79551 conditions, 35447 events. 22559/35447 cut-off events. For 13318/13823 co-relation queries the response was YES. Maximal size of possible extension queue 1556. Compared 271513 event pairs, 9959 based on Foata normal form. 962/32101 useless extension candidates. Maximal degree in co-relation 79542. Up to 21399 conditions per place. [2023-11-06 22:20:56,773 INFO L140 encePairwiseOnDemand]: 521/525 looper letters, 69 selfloop transitions, 3 changer transitions 0/107 dead transitions. [2023-11-06 22:20:56,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 107 transitions, 489 flow [2023-11-06 22:20:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:20:56,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:20:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 992 transitions. [2023-11-06 22:20:56,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4723809523809524 [2023-11-06 22:20:56,779 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 992 transitions. [2023-11-06 22:20:56,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 992 transitions. [2023-11-06 22:20:56,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:56,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 992 transitions. [2023-11-06 22:20:56,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:56,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 525.0) internal successors, (2625), 5 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:56,790 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 525.0) internal successors, (2625), 5 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:56,790 INFO L175 Difference]: Start difference. First operand has 86 places, 78 transitions, 249 flow. Second operand 4 states and 992 transitions. [2023-11-06 22:20:56,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 107 transitions, 489 flow [2023-11-06 22:20:57,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 473 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:20:57,182 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 247 flow [2023-11-06 22:20:57,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2023-11-06 22:20:57,183 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -45 predicate places. [2023-11-06 22:20:57,184 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 247 flow [2023-11-06 22:20:57,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 238.5) internal successors, (954), 4 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:57,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:57,185 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:57,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:20:57,185 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:20:57,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:57,186 INFO L85 PathProgramCache]: Analyzing trace with hash -3400645, now seen corresponding path program 1 times [2023-11-06 22:20:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:57,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933114642] [2023-11-06 22:20:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:57,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:20:57,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:57,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933114642] [2023-11-06 22:20:57,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933114642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:57,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:57,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:20:57,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127064691] [2023-11-06 22:20:57,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:57,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:20:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:57,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:20:57,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:20:58,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 525 [2023-11-06 22:20:58,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:58,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:58,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 525 [2023-11-06 22:20:58,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:03,481 INFO L124 PetriNetUnfolderBase]: 28836/41544 cut-off events. [2023-11-06 22:21:03,481 INFO L125 PetriNetUnfolderBase]: For 18886/19450 co-relation queries the response was YES. [2023-11-06 22:21:03,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98359 conditions, 41544 events. 28836/41544 cut-off events. For 18886/19450 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 281008 event pairs, 13386 based on Foata normal form. 4/36180 useless extension candidates. Maximal degree in co-relation 98349. Up to 29469 conditions per place. [2023-11-06 22:21:03,941 INFO L140 encePairwiseOnDemand]: 517/525 looper letters, 89 selfloop transitions, 21 changer transitions 0/139 dead transitions. [2023-11-06 22:21:03,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 139 transitions, 629 flow [2023-11-06 22:21:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:03,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:21:03,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1449 transitions. [2023-11-06 22:21:03,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46 [2023-11-06 22:21:03,948 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1449 transitions. [2023-11-06 22:21:03,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1449 transitions. [2023-11-06 22:21:03,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:03,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1449 transitions. [2023-11-06 22:21:03,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.5) internal successors, (1449), 6 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:03,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 525.0) internal successors, (3675), 7 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:03,961 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 525.0) internal successors, (3675), 7 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:03,962 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 247 flow. Second operand 6 states and 1449 transitions. [2023-11-06 22:21:03,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 139 transitions, 629 flow [2023-11-06 22:21:04,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 139 transitions, 625 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:21:04,314 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 425 flow [2023-11-06 22:21:04,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=425, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2023-11-06 22:21:04,315 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -37 predicate places. [2023-11-06 22:21:04,315 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 425 flow [2023-11-06 22:21:04,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:04,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:04,316 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:04,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:21:04,316 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:21:04,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:04,317 INFO L85 PathProgramCache]: Analyzing trace with hash 183560515, now seen corresponding path program 1 times [2023-11-06 22:21:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:04,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160037118] [2023-11-06 22:21:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:04,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:04,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:04,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160037118] [2023-11-06 22:21:04,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160037118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:05,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:05,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:21:05,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663299691] [2023-11-06 22:21:05,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:05,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:21:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:05,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:21:05,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:21:05,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 525 [2023-11-06 22:21:05,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 425 flow. Second operand has 9 states, 9 states have (on average 223.88888888888889) internal successors, (2015), 9 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:05,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:05,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 525 [2023-11-06 22:21:05,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:21:11,319 INFO L124 PetriNetUnfolderBase]: 28401/41255 cut-off events. [2023-11-06 22:21:11,319 INFO L125 PetriNetUnfolderBase]: For 31154/32254 co-relation queries the response was YES. [2023-11-06 22:21:11,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106974 conditions, 41255 events. 28401/41255 cut-off events. For 31154/32254 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 281227 event pairs, 12090 based on Foata normal form. 110/36187 useless extension candidates. Maximal degree in co-relation 106960. Up to 25057 conditions per place. [2023-11-06 22:21:11,652 INFO L140 encePairwiseOnDemand]: 518/525 looper letters, 104 selfloop transitions, 9 changer transitions 0/142 dead transitions. [2023-11-06 22:21:11,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 142 transitions, 767 flow [2023-11-06 22:21:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:21:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:21:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1852 transitions. [2023-11-06 22:21:11,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44095238095238093 [2023-11-06 22:21:11,660 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1852 transitions. [2023-11-06 22:21:11,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1852 transitions. [2023-11-06 22:21:11,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:11,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1852 transitions. [2023-11-06 22:21:11,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 231.5) internal successors, (1852), 8 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:11,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 525.0) internal successors, (4725), 9 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:11,677 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 525.0) internal successors, (4725), 9 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:11,677 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 425 flow. Second operand 8 states and 1852 transitions. [2023-11-06 22:21:11,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 142 transitions, 767 flow [2023-11-06 22:21:12,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 142 transitions, 761 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:21:12,198 INFO L231 Difference]: Finished difference. Result has 97 places, 98 transitions, 433 flow [2023-11-06 22:21:12,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=433, PETRI_PLACES=97, PETRI_TRANSITIONS=98} [2023-11-06 22:21:12,199 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -32 predicate places. [2023-11-06 22:21:12,200 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 98 transitions, 433 flow [2023-11-06 22:21:12,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 223.88888888888889) internal successors, (2015), 9 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:12,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:21:12,201 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:21:12,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-06 22:21:12,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash -75198610, now seen corresponding path program 1 times [2023-11-06 22:21:12,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:12,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394574637] [2023-11-06 22:21:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:12,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:12,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394574637] [2023-11-06 22:21:12,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394574637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:12,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:12,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:12,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469393511] [2023-11-06 22:21:12,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:12,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:21:12,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:12,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 525 [2023-11-06 22:21:12,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 98 transitions, 433 flow. Second operand has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:12,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:21:12,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 525 [2023-11-06 22:21:12,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand