./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:26:24,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:26:24,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:26:24,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:26:24,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:26:24,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:26:24,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:26:24,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:26:24,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:26:24,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:26:24,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:26:24,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:26:24,972 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:26:24,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:26:24,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:26:24,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:26:24,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:26:24,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:26:24,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:26:24,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:26:24,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:26:24,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:26:24,981 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:26:24,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:26:24,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:26:24,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:26:24,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:26:24,982 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:26:24,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:26:24,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:26:24,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:26:24,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:26:24,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:26:24,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:26:24,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:26:24,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:26:24,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:26:24,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:26:24,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:26:24,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:26:24,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:26:24,989 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_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de [2024-11-08 18:26:25,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:26:25,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:26:25,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:26:25,326 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:26:25,327 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:26:25,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i Unable to find full path for "g++" [2024-11-08 18:26:27,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:26:27,814 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:26:27,815 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-11-08 18:26:27,833 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/data/3abcab39b/15ad2ca1c4714892be654a6c841520f5/FLAGce369b894 [2024-11-08 18:26:27,857 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/data/3abcab39b/15ad2ca1c4714892be654a6c841520f5 [2024-11-08 18:26:27,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:26:27,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:26:27,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:26:27,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:26:27,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:26:27,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:26:27" (1/1) ... [2024-11-08 18:26:27,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b13d1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:27, skipping insertion in model container [2024-11-08 18:26:27,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:26:27" (1/1) ... [2024-11-08 18:26:27,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:26:28,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:26:28,627 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:26:28,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:26:28,757 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:26:28,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28 WrapperNode [2024-11-08 18:26:28,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:26:28,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:26:28,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:26:28,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:26:28,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,819 INFO L138 Inliner]: procedures = 267, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2024-11-08 18:26:28,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:26:28,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:26:28,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:26:28,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:26:28,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:26:28,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:26:28,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:26:28,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:26:28,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (1/1) ... [2024-11-08 18:26:28,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:26:28,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:26:28,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:26:28,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:26:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 18:26:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:26:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:26:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 18:26:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 18:26:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:26:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:26:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:26:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 18:26:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 18:26:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-08 18:26:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-08 18:26:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:26:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:26:28,982 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:26:29,236 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:26:29,239 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:26:29,617 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:26:29,618 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:26:29,644 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:26:29,644 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:26:29,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:26:29 BoogieIcfgContainer [2024-11-08 18:26:29,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:26:29,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:26:29,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:26:29,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:26:29,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:26:27" (1/3) ... [2024-11-08 18:26:29,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee9b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:26:29, skipping insertion in model container [2024-11-08 18:26:29,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:28" (2/3) ... [2024-11-08 18:26:29,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee9b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:26:29, skipping insertion in model container [2024-11-08 18:26:29,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:26:29" (3/3) ... [2024-11-08 18:26:29,655 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid-join.i [2024-11-08 18:26:29,682 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:26:29,684 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-08 18:26:29,684 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:26:29,780 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:26:29,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 123 transitions, 253 flow [2024-11-08 18:26:29,914 INFO L124 PetriNetUnfolderBase]: 6/178 cut-off events. [2024-11-08 18:26:29,914 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:26:29,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 178 events. 6/178 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 249 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-11-08 18:26:29,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 123 transitions, 253 flow [2024-11-08 18:26:29,926 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 123 transitions, 253 flow [2024-11-08 18:26:29,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:26:29,945 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cca1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:26:29,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 18:26:29,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:26:29,961 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 18:26:29,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:26:29,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:29,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:29,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:29,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash -212167596, now seen corresponding path program 1 times [2024-11-08 18:26:29,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430638390] [2024-11-08 18:26:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:30,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:30,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430638390] [2024-11-08 18:26:30,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430638390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:30,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:30,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:26:30,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836384516] [2024-11-08 18:26:30,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:30,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:30,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:30,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:30,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 123 [2024-11-08 18:26:30,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:30,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:30,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 123 [2024-11-08 18:26:30,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:30,434 INFO L124 PetriNetUnfolderBase]: 12/220 cut-off events. [2024-11-08 18:26:30,434 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-08 18:26:30,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 220 events. 12/220 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 544 event pairs, 1 based on Foata normal form. 1/194 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2024-11-08 18:26:30,437 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 8 selfloop transitions, 3 changer transitions 2/126 dead transitions. [2024-11-08 18:26:30,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 126 transitions, 283 flow [2024-11-08 18:26:30,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:30,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-08 18:26:30,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.964769647696477 [2024-11-08 18:26:30,457 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 253 flow. Second operand 3 states and 356 transitions. [2024-11-08 18:26:30,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 126 transitions, 283 flow [2024-11-08 18:26:30,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 126 transitions, 283 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:26:30,467 INFO L231 Difference]: Finished difference. Result has 126 places, 123 transitions, 271 flow [2024-11-08 18:26:30,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=126, PETRI_TRANSITIONS=123} [2024-11-08 18:26:30,474 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 4 predicate places. [2024-11-08 18:26:30,474 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 123 transitions, 271 flow [2024-11-08 18:26:30,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:30,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:30,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:30,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:26:30,476 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:30,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash -341364987, now seen corresponding path program 1 times [2024-11-08 18:26:30,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:30,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113650432] [2024-11-08 18:26:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:30,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:30,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:30,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113650432] [2024-11-08 18:26:30,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113650432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:30,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:30,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:30,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721410099] [2024-11-08 18:26:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:30,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:26:30,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:26:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:26:31,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 123 [2024-11-08 18:26:31,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 106.6) internal successors, (533), 5 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:31,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:31,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 123 [2024-11-08 18:26:31,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:31,169 INFO L124 PetriNetUnfolderBase]: 27/318 cut-off events. [2024-11-08 18:26:31,169 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 18:26:31,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 318 events. 27/318 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1110 event pairs, 8 based on Foata normal form. 1/296 useless extension candidates. Maximal degree in co-relation 316. Up to 58 conditions per place. [2024-11-08 18:26:31,172 INFO L140 encePairwiseOnDemand]: 114/123 looper letters, 17 selfloop transitions, 2 changer transitions 6/131 dead transitions. [2024-11-08 18:26:31,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 131 transitions, 337 flow [2024-11-08 18:26:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 656 transitions. [2024-11-08 18:26:31,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-08 18:26:31,177 INFO L175 Difference]: Start difference. First operand has 126 places, 123 transitions, 271 flow. Second operand 6 states and 656 transitions. [2024-11-08 18:26:31,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 131 transitions, 337 flow [2024-11-08 18:26:31,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 131 transitions, 331 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:26:31,182 INFO L231 Difference]: Finished difference. Result has 132 places, 123 transitions, 285 flow [2024-11-08 18:26:31,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=132, PETRI_TRANSITIONS=123} [2024-11-08 18:26:31,184 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-11-08 18:26:31,184 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 123 transitions, 285 flow [2024-11-08 18:26:31,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.6) internal successors, (533), 5 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:31,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:31,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:31,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:26:31,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:31,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:31,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1037974092, now seen corresponding path program 1 times [2024-11-08 18:26:31,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:31,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134461543] [2024-11-08 18:26:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:31,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:31,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:31,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:31,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134461543] [2024-11-08 18:26:31,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134461543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:31,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:31,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:31,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223719955] [2024-11-08 18:26:31,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:31,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:31,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:31,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:31,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:32,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 123 [2024-11-08 18:26:32,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 123 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:32,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:32,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 123 [2024-11-08 18:26:32,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:32,341 INFO L124 PetriNetUnfolderBase]: 49/427 cut-off events. [2024-11-08 18:26:32,341 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 18:26:32,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 427 events. 49/427 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1916 event pairs, 35 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 517. Up to 117 conditions per place. [2024-11-08 18:26:32,345 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 36 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2024-11-08 18:26:32,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 130 transitions, 381 flow [2024-11-08 18:26:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:32,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 570 transitions. [2024-11-08 18:26:32,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7723577235772358 [2024-11-08 18:26:32,349 INFO L175 Difference]: Start difference. First operand has 132 places, 123 transitions, 285 flow. Second operand 6 states and 570 transitions. [2024-11-08 18:26:32,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 130 transitions, 381 flow [2024-11-08 18:26:32,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 130 transitions, 367 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:32,354 INFO L231 Difference]: Finished difference. Result has 128 places, 122 transitions, 279 flow [2024-11-08 18:26:32,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=128, PETRI_TRANSITIONS=122} [2024-11-08 18:26:32,355 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 6 predicate places. [2024-11-08 18:26:32,356 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 122 transitions, 279 flow [2024-11-08 18:26:32,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:32,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:32,357 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:32,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:26:32,358 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:32,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 174724955, now seen corresponding path program 1 times [2024-11-08 18:26:32,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:32,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261884133] [2024-11-08 18:26:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:32,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:32,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:32,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:32,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261884133] [2024-11-08 18:26:32,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261884133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:32,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:32,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:32,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002452975] [2024-11-08 18:26:32,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:32,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:32,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:32,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:32,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:33,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2024-11-08 18:26:33,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 122 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 92.0) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:33,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:33,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2024-11-08 18:26:33,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:33,171 INFO L124 PetriNetUnfolderBase]: 53/361 cut-off events. [2024-11-08 18:26:33,171 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 18:26:33,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 361 events. 53/361 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1614 event pairs, 19 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 422. Up to 112 conditions per place. [2024-11-08 18:26:33,174 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 34 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2024-11-08 18:26:33,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 129 transitions, 371 flow [2024-11-08 18:26:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:33,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 580 transitions. [2024-11-08 18:26:33,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7859078590785907 [2024-11-08 18:26:33,177 INFO L175 Difference]: Start difference. First operand has 128 places, 122 transitions, 279 flow. Second operand 6 states and 580 transitions. [2024-11-08 18:26:33,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 129 transitions, 371 flow [2024-11-08 18:26:33,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 129 transitions, 361 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:33,186 INFO L231 Difference]: Finished difference. Result has 127 places, 121 transitions, 277 flow [2024-11-08 18:26:33,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2024-11-08 18:26:33,187 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2024-11-08 18:26:33,187 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 277 flow [2024-11-08 18:26:33,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.0) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:33,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:33,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:33,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:26:33,190 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:33,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:33,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2072114385, now seen corresponding path program 1 times [2024-11-08 18:26:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:33,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584821687] [2024-11-08 18:26:33,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:33,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:33,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:33,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:33,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584821687] [2024-11-08 18:26:33,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584821687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:33,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:33,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:26:33,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168549855] [2024-11-08 18:26:33,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:33,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:33,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:33,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:33,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 123 [2024-11-08 18:26:33,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:33,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:33,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 123 [2024-11-08 18:26:33,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:33,321 INFO L124 PetriNetUnfolderBase]: 8/223 cut-off events. [2024-11-08 18:26:33,321 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-11-08 18:26:33,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 223 events. 8/223 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 617 event pairs, 3 based on Foata normal form. 1/207 useless extension candidates. Maximal degree in co-relation 219. Up to 25 conditions per place. [2024-11-08 18:26:33,323 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 8 selfloop transitions, 4 changer transitions 3/124 dead transitions. [2024-11-08 18:26:33,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 124 transitions, 313 flow [2024-11-08 18:26:33,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-08 18:26:33,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948509485094851 [2024-11-08 18:26:33,325 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 277 flow. Second operand 3 states and 350 transitions. [2024-11-08 18:26:33,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 124 transitions, 313 flow [2024-11-08 18:26:33,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 124 transitions, 303 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:33,331 INFO L231 Difference]: Finished difference. Result has 126 places, 121 transitions, 289 flow [2024-11-08 18:26:33,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=126, PETRI_TRANSITIONS=121} [2024-11-08 18:26:33,333 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 4 predicate places. [2024-11-08 18:26:33,334 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 121 transitions, 289 flow [2024-11-08 18:26:33,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:33,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:33,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:33,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:26:33,336 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:33,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:33,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1420126046, now seen corresponding path program 1 times [2024-11-08 18:26:33,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:33,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670123863] [2024-11-08 18:26:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:33,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:26:33,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:33,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670123863] [2024-11-08 18:26:33,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670123863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:33,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:33,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:33,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817348981] [2024-11-08 18:26:33,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:33,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:33,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:34,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 123 [2024-11-08 18:26:34,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 121 transitions, 289 flow. Second operand has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:34,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:34,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 123 [2024-11-08 18:26:34,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:34,309 INFO L124 PetriNetUnfolderBase]: 36/413 cut-off events. [2024-11-08 18:26:34,310 INFO L125 PetriNetUnfolderBase]: For 67/70 co-relation queries the response was YES. [2024-11-08 18:26:34,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 413 events. 36/413 cut-off events. For 67/70 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1837 event pairs, 23 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 516. Up to 79 conditions per place. [2024-11-08 18:26:34,312 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 31 selfloop transitions, 5 changer transitions 0/127 dead transitions. [2024-11-08 18:26:34,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 127 transitions, 373 flow [2024-11-08 18:26:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:34,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 590 transitions. [2024-11-08 18:26:34,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7994579945799458 [2024-11-08 18:26:34,315 INFO L175 Difference]: Start difference. First operand has 126 places, 121 transitions, 289 flow. Second operand 6 states and 590 transitions. [2024-11-08 18:26:34,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 127 transitions, 373 flow [2024-11-08 18:26:34,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 127 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:26:34,319 INFO L231 Difference]: Finished difference. Result has 127 places, 119 transitions, 287 flow [2024-11-08 18:26:34,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=287, PETRI_PLACES=127, PETRI_TRANSITIONS=119} [2024-11-08 18:26:34,320 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2024-11-08 18:26:34,320 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 119 transitions, 287 flow [2024-11-08 18:26:34,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:34,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:34,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:34,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:26:34,322 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:34,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:34,322 INFO L85 PathProgramCache]: Analyzing trace with hash -630141341, now seen corresponding path program 1 times [2024-11-08 18:26:34,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:34,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006084252] [2024-11-08 18:26:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:34,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:34,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:34,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:34,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006084252] [2024-11-08 18:26:34,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006084252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:26:34,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454281949] [2024-11-08 18:26:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:34,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:26:34,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:26:34,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:26:34,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:26:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:34,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:26:34,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:26:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:34,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:26:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:34,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454281949] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:26:34,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:26:34,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-08 18:26:34,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949393215] [2024-11-08 18:26:34,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:26:34,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:26:34,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:34,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:26:34,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:26:35,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 123 [2024-11-08 18:26:35,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 287 flow. Second operand has 9 states, 9 states have (on average 103.44444444444444) internal successors, (931), 9 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:35,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:35,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 123 [2024-11-08 18:26:35,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:35,507 INFO L124 PetriNetUnfolderBase]: 19/257 cut-off events. [2024-11-08 18:26:35,507 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 18:26:35,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 257 events. 19/257 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 663 event pairs, 3 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 249. Up to 23 conditions per place. [2024-11-08 18:26:35,509 INFO L140 encePairwiseOnDemand]: 111/123 looper letters, 18 selfloop transitions, 9 changer transitions 9/124 dead transitions. [2024-11-08 18:26:35,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 124 transitions, 345 flow [2024-11-08 18:26:35,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:26:35,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:26:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 841 transitions. [2024-11-08 18:26:35,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8546747967479674 [2024-11-08 18:26:35,512 INFO L175 Difference]: Start difference. First operand has 127 places, 119 transitions, 287 flow. Second operand 8 states and 841 transitions. [2024-11-08 18:26:35,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 124 transitions, 345 flow [2024-11-08 18:26:35,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 124 transitions, 321 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-08 18:26:35,516 INFO L231 Difference]: Finished difference. Result has 125 places, 107 transitions, 258 flow [2024-11-08 18:26:35,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=258, PETRI_PLACES=125, PETRI_TRANSITIONS=107} [2024-11-08 18:26:35,517 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2024-11-08 18:26:35,517 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 107 transitions, 258 flow [2024-11-08 18:26:35,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 103.44444444444444) internal successors, (931), 9 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:35,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:35,519 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:35,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:26:35,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:26:35,720 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:35,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1884738628, now seen corresponding path program 1 times [2024-11-08 18:26:35,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:35,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571876948] [2024-11-08 18:26:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:26:36,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:36,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571876948] [2024-11-08 18:26:36,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571876948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:36,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:36,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:36,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431267347] [2024-11-08 18:26:36,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:36,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:36,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:36,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:36,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:36,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 123 [2024-11-08 18:26:36,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 107 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 102.66666666666667) internal successors, (616), 6 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:36,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:36,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 123 [2024-11-08 18:26:36,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:36,655 INFO L124 PetriNetUnfolderBase]: 29/304 cut-off events. [2024-11-08 18:26:36,655 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-08 18:26:36,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 304 events. 29/304 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1048 event pairs, 18 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 311. Up to 60 conditions per place. [2024-11-08 18:26:36,657 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 12 selfloop transitions, 0 changer transitions 41/114 dead transitions. [2024-11-08 18:26:36,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 328 flow [2024-11-08 18:26:36,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 629 transitions. [2024-11-08 18:26:36,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8523035230352304 [2024-11-08 18:26:36,661 INFO L175 Difference]: Start difference. First operand has 125 places, 107 transitions, 258 flow. Second operand 6 states and 629 transitions. [2024-11-08 18:26:36,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 328 flow [2024-11-08 18:26:36,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 114 transitions, 314 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:36,665 INFO L231 Difference]: Finished difference. Result has 115 places, 73 transitions, 158 flow [2024-11-08 18:26:36,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=115, PETRI_TRANSITIONS=73} [2024-11-08 18:26:36,667 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -7 predicate places. [2024-11-08 18:26:36,667 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 73 transitions, 158 flow [2024-11-08 18:26:36,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.66666666666667) internal successors, (616), 6 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:36,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:36,668 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 18:26:36,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:26:36,669 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 18:26:36,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:36,670 INFO L85 PathProgramCache]: Analyzing trace with hash 303151971, now seen corresponding path program 1 times [2024-11-08 18:26:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:36,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915316399] [2024-11-08 18:26:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:36,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:26:36,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:26:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:26:36,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:26:36,798 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:26:36,800 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-08 18:26:36,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-08 18:26:36,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-08 18:26:36,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-08 18:26:36,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-08 18:26:36,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-08 18:26:36,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-08 18:26:36,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-08 18:26:36,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-08 18:26:36,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:26:36,808 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:36,812 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:26:36,812 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:26:36,851 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:26:36,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 141 transitions, 298 flow [2024-11-08 18:26:36,921 INFO L124 PetriNetUnfolderBase]: 11/315 cut-off events. [2024-11-08 18:26:36,921 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:26:36,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 315 events. 11/315 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 580 event pairs, 0 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 180. Up to 8 conditions per place. [2024-11-08 18:26:36,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 141 transitions, 298 flow [2024-11-08 18:26:36,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 141 transitions, 298 flow [2024-11-08 18:26:36,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:26:36,928 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cca1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:26:36,928 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-08 18:26:36,933 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:26:36,933 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 18:26:36,933 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:26:36,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:36,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:36,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:36,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:36,934 INFO L85 PathProgramCache]: Analyzing trace with hash 596148212, now seen corresponding path program 1 times [2024-11-08 18:26:36,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:36,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042143323] [2024-11-08 18:26:36,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:36,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:36,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:36,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042143323] [2024-11-08 18:26:36,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042143323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:36,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:36,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:26:36,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502384690] [2024-11-08 18:26:36,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:36,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:36,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:36,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:36,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:36,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 141 [2024-11-08 18:26:36,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:36,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:36,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 141 [2024-11-08 18:26:36,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:37,167 INFO L124 PetriNetUnfolderBase]: 129/898 cut-off events. [2024-11-08 18:26:37,167 INFO L125 PetriNetUnfolderBase]: For 56/113 co-relation queries the response was YES. [2024-11-08 18:26:37,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 898 events. 129/898 cut-off events. For 56/113 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4798 event pairs, 50 based on Foata normal form. 1/782 useless extension candidates. Maximal degree in co-relation 849. Up to 139 conditions per place. [2024-11-08 18:26:37,175 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 16 selfloop transitions, 4 changer transitions 1/147 dead transitions. [2024-11-08 18:26:37,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 350 flow [2024-11-08 18:26:37,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:37,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:37,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2024-11-08 18:26:37,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9527186761229315 [2024-11-08 18:26:37,177 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 298 flow. Second operand 3 states and 403 transitions. [2024-11-08 18:26:37,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 350 flow [2024-11-08 18:26:37,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 147 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:26:37,180 INFO L231 Difference]: Finished difference. Result has 145 places, 142 transitions, 324 flow [2024-11-08 18:26:37,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=145, PETRI_TRANSITIONS=142} [2024-11-08 18:26:37,182 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 4 predicate places. [2024-11-08 18:26:37,182 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 142 transitions, 324 flow [2024-11-08 18:26:37,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:37,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:37,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:37,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:26:37,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:37,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1686617518, now seen corresponding path program 1 times [2024-11-08 18:26:37,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699535603] [2024-11-08 18:26:37,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:37,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:37,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699535603] [2024-11-08 18:26:37,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699535603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:37,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:37,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:37,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795764075] [2024-11-08 18:26:37,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:37,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:26:37,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:26:37,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:26:37,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 141 [2024-11-08 18:26:37,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 142 transitions, 324 flow. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:37,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:37,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 141 [2024-11-08 18:26:37,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:37,756 INFO L124 PetriNetUnfolderBase]: 231/1492 cut-off events. [2024-11-08 18:26:37,756 INFO L125 PetriNetUnfolderBase]: For 72/73 co-relation queries the response was YES. [2024-11-08 18:26:37,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2047 conditions, 1492 events. 231/1492 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10419 event pairs, 147 based on Foata normal form. 1/1369 useless extension candidates. Maximal degree in co-relation 1446. Up to 362 conditions per place. [2024-11-08 18:26:37,770 INFO L140 encePairwiseOnDemand]: 132/141 looper letters, 22 selfloop transitions, 2 changer transitions 6/151 dead transitions. [2024-11-08 18:26:37,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 151 transitions, 402 flow [2024-11-08 18:26:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2024-11-08 18:26:37,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8806146572104019 [2024-11-08 18:26:37,774 INFO L175 Difference]: Start difference. First operand has 145 places, 142 transitions, 324 flow. Second operand 6 states and 745 transitions. [2024-11-08 18:26:37,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 151 transitions, 402 flow [2024-11-08 18:26:37,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 151 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:26:37,779 INFO L231 Difference]: Finished difference. Result has 151 places, 143 transitions, 340 flow [2024-11-08 18:26:37,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=151, PETRI_TRANSITIONS=143} [2024-11-08 18:26:37,780 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 10 predicate places. [2024-11-08 18:26:37,780 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 143 transitions, 340 flow [2024-11-08 18:26:37,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:37,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:37,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:37,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:26:37,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:37,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2010148564, now seen corresponding path program 1 times [2024-11-08 18:26:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:37,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971974310] [2024-11-08 18:26:37,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:38,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:38,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971974310] [2024-11-08 18:26:38,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971974310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:38,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:38,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:38,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654291835] [2024-11-08 18:26:38,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:38,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:38,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:38,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:38,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:38,409 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 141 [2024-11-08 18:26:38,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 143 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:38,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:38,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 141 [2024-11-08 18:26:38,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:38,924 INFO L124 PetriNetUnfolderBase]: 458/2434 cut-off events. [2024-11-08 18:26:38,924 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-08 18:26:38,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3541 conditions, 2434 events. 458/2434 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 19928 event pairs, 342 based on Foata normal form. 0/2158 useless extension candidates. Maximal degree in co-relation 3428. Up to 657 conditions per place. [2024-11-08 18:26:38,942 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 49 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2024-11-08 18:26:38,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 158 transitions, 478 flow [2024-11-08 18:26:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 666 transitions. [2024-11-08 18:26:38,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7872340425531915 [2024-11-08 18:26:38,945 INFO L175 Difference]: Start difference. First operand has 151 places, 143 transitions, 340 flow. Second operand 6 states and 666 transitions. [2024-11-08 18:26:38,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 158 transitions, 478 flow [2024-11-08 18:26:38,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 158 transitions, 466 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 18:26:38,949 INFO L231 Difference]: Finished difference. Result has 148 places, 142 transitions, 336 flow [2024-11-08 18:26:38,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=148, PETRI_TRANSITIONS=142} [2024-11-08 18:26:38,951 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 7 predicate places. [2024-11-08 18:26:38,951 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 142 transitions, 336 flow [2024-11-08 18:26:38,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:38,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:38,952 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:38,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:26:38,953 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:38,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash 138255963, now seen corresponding path program 1 times [2024-11-08 18:26:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:38,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72160815] [2024-11-08 18:26:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:38,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:39,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:39,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72160815] [2024-11-08 18:26:39,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72160815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:39,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:39,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:39,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036294479] [2024-11-08 18:26:39,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:39,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:39,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:39,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:39,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 141 [2024-11-08 18:26:39,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 142 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:39,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:39,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 141 [2024-11-08 18:26:39,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:39,981 INFO L124 PetriNetUnfolderBase]: 488/1824 cut-off events. [2024-11-08 18:26:39,981 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-08 18:26:39,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 1824 events. 488/1824 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 13716 event pairs, 64 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 1011. Up to 690 conditions per place. [2024-11-08 18:26:39,995 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 46 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-08 18:26:39,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 157 transitions, 468 flow [2024-11-08 18:26:39,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 676 transitions. [2024-11-08 18:26:39,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7990543735224587 [2024-11-08 18:26:39,998 INFO L175 Difference]: Start difference. First operand has 148 places, 142 transitions, 336 flow. Second operand 6 states and 676 transitions. [2024-11-08 18:26:39,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 157 transitions, 468 flow [2024-11-08 18:26:40,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 157 transitions, 458 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:40,002 INFO L231 Difference]: Finished difference. Result has 147 places, 141 transitions, 334 flow [2024-11-08 18:26:40,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=147, PETRI_TRANSITIONS=141} [2024-11-08 18:26:40,004 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 6 predicate places. [2024-11-08 18:26:40,004 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 141 transitions, 334 flow [2024-11-08 18:26:40,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:40,005 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:40,005 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:40,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:26:40,005 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:40,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash -33215425, now seen corresponding path program 1 times [2024-11-08 18:26:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:40,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897440580] [2024-11-08 18:26:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:40,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:40,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897440580] [2024-11-08 18:26:40,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897440580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:40,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:40,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:26:40,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471796295] [2024-11-08 18:26:40,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:40,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:40,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:40,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:40,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:40,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 141 [2024-11-08 18:26:40,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 141 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:40,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:40,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 141 [2024-11-08 18:26:40,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:40,352 INFO L124 PetriNetUnfolderBase]: 176/1212 cut-off events. [2024-11-08 18:26:40,352 INFO L125 PetriNetUnfolderBase]: For 190/422 co-relation queries the response was YES. [2024-11-08 18:26:40,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1782 conditions, 1212 events. 176/1212 cut-off events. For 190/422 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8176 event pairs, 88 based on Foata normal form. 3/1070 useless extension candidates. Maximal degree in co-relation 1442. Up to 269 conditions per place. [2024-11-08 18:26:40,361 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 19 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-11-08 18:26:40,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 150 transitions, 418 flow [2024-11-08 18:26:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2024-11-08 18:26:40,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9432624113475178 [2024-11-08 18:26:40,364 INFO L175 Difference]: Start difference. First operand has 147 places, 141 transitions, 334 flow. Second operand 3 states and 399 transitions. [2024-11-08 18:26:40,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 150 transitions, 418 flow [2024-11-08 18:26:40,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 408 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:40,368 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 380 flow [2024-11-08 18:26:40,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2024-11-08 18:26:40,370 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2024-11-08 18:26:40,370 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 380 flow [2024-11-08 18:26:40,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:40,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:40,371 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:40,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:26:40,371 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:40,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1308253281, now seen corresponding path program 1 times [2024-11-08 18:26:40,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:40,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242439925] [2024-11-08 18:26:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:40,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:26:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:40,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242439925] [2024-11-08 18:26:40,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242439925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:40,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:40,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:40,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232306334] [2024-11-08 18:26:40,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:40,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:40,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:40,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:40,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:41,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 141 [2024-11-08 18:26:41,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:41,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:41,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 141 [2024-11-08 18:26:41,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:41,742 INFO L124 PetriNetUnfolderBase]: 471/2615 cut-off events. [2024-11-08 18:26:41,742 INFO L125 PetriNetUnfolderBase]: For 410/468 co-relation queries the response was YES. [2024-11-08 18:26:41,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4143 conditions, 2615 events. 471/2615 cut-off events. For 410/468 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 22491 event pairs, 252 based on Foata normal form. 3/2393 useless extension candidates. Maximal degree in co-relation 3264. Up to 490 conditions per place. [2024-11-08 18:26:41,762 INFO L140 encePairwiseOnDemand]: 134/141 looper letters, 43 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2024-11-08 18:26:41,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 160 transitions, 504 flow [2024-11-08 18:26:41,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:41,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:41,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 686 transitions. [2024-11-08 18:26:41,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8108747044917257 [2024-11-08 18:26:41,765 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 380 flow. Second operand 6 states and 686 transitions. [2024-11-08 18:26:41,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 160 transitions, 504 flow [2024-11-08 18:26:41,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 160 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:26:41,771 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 372 flow [2024-11-08 18:26:41,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2024-11-08 18:26:41,773 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 6 predicate places. [2024-11-08 18:26:41,773 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 372 flow [2024-11-08 18:26:41,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:41,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:41,774 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:41,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:26:41,774 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:41,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:41,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1486831873, now seen corresponding path program 1 times [2024-11-08 18:26:41,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:41,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426805044] [2024-11-08 18:26:41,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:41,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:41,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426805044] [2024-11-08 18:26:41,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426805044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:26:41,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483900444] [2024-11-08 18:26:41,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:41,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:26:41,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:26:41,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:26:41,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:26:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:42,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:26:42,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:26:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:42,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:26:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:42,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483900444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:26:42,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:26:42,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-08 18:26:42,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785584467] [2024-11-08 18:26:42,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:26:42,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:26:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:42,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:26:42,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:26:42,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2024-11-08 18:26:42,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 372 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:42,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:42,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2024-11-08 18:26:42,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:43,079 INFO L124 PetriNetUnfolderBase]: 217/1511 cut-off events. [2024-11-08 18:26:43,080 INFO L125 PetriNetUnfolderBase]: For 146/173 co-relation queries the response was YES. [2024-11-08 18:26:43,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2259 conditions, 1511 events. 217/1511 cut-off events. For 146/173 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10291 event pairs, 45 based on Foata normal form. 0/1397 useless extension candidates. Maximal degree in co-relation 1287. Up to 188 conditions per place. [2024-11-08 18:26:43,090 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 36 selfloop transitions, 11 changer transitions 3/167 dead transitions. [2024-11-08 18:26:43,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 167 transitions, 522 flow [2024-11-08 18:26:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:26:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:26:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 973 transitions. [2024-11-08 18:26:43,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8625886524822695 [2024-11-08 18:26:43,094 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 372 flow. Second operand 8 states and 973 transitions. [2024-11-08 18:26:43,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 167 transitions, 522 flow [2024-11-08 18:26:43,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 167 transitions, 510 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:43,099 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 401 flow [2024-11-08 18:26:43,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=401, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-11-08 18:26:43,100 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 11 predicate places. [2024-11-08 18:26:43,100 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 401 flow [2024-11-08 18:26:43,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:43,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:43,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:43,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:26:43,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 18:26:43,306 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:43,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:43,306 INFO L85 PathProgramCache]: Analyzing trace with hash -918853023, now seen corresponding path program 1 times [2024-11-08 18:26:43,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:43,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776990603] [2024-11-08 18:26:43,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:43,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:26:43,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:43,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776990603] [2024-11-08 18:26:43,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776990603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:43,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:43,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:43,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217471864] [2024-11-08 18:26:43,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:43,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:43,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:43,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:43,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:44,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 141 [2024-11-08 18:26:44,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 401 flow. Second operand has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:44,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:44,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 141 [2024-11-08 18:26:44,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:44,413 INFO L124 PetriNetUnfolderBase]: 331/1897 cut-off events. [2024-11-08 18:26:44,414 INFO L125 PetriNetUnfolderBase]: For 153/188 co-relation queries the response was YES. [2024-11-08 18:26:44,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2968 conditions, 1897 events. 331/1897 cut-off events. For 153/188 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 14560 event pairs, 186 based on Foata normal form. 0/1768 useless extension candidates. Maximal degree in co-relation 2213. Up to 364 conditions per place. [2024-11-08 18:26:44,430 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 36 selfloop transitions, 5 changer transitions 1/160 dead transitions. [2024-11-08 18:26:44,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 160 transitions, 513 flow [2024-11-08 18:26:44,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:44,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:44,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-11-08 18:26:44,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8581560283687943 [2024-11-08 18:26:44,433 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 401 flow. Second operand 6 states and 726 transitions. [2024-11-08 18:26:44,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 160 transitions, 513 flow [2024-11-08 18:26:44,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 160 transitions, 506 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:26:44,438 INFO L231 Difference]: Finished difference. Result has 153 places, 143 transitions, 397 flow [2024-11-08 18:26:44,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=153, PETRI_TRANSITIONS=143} [2024-11-08 18:26:44,440 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 12 predicate places. [2024-11-08 18:26:44,440 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 143 transitions, 397 flow [2024-11-08 18:26:44,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:44,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:44,442 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-11-08 18:26:44,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:26:44,442 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:44,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:44,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1262160319, now seen corresponding path program 1 times [2024-11-08 18:26:44,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:44,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128745631] [2024-11-08 18:26:44,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:44,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 18:26:44,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:44,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128745631] [2024-11-08 18:26:44,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128745631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:44,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:44,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:26:44,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108588080] [2024-11-08 18:26:44,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:44,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:44,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:44,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:44,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 141 [2024-11-08 18:26:44,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 143 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:44,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:44,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 141 [2024-11-08 18:26:44,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:44,736 INFO L124 PetriNetUnfolderBase]: 58/899 cut-off events. [2024-11-08 18:26:44,737 INFO L125 PetriNetUnfolderBase]: For 248/613 co-relation queries the response was YES. [2024-11-08 18:26:44,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 899 events. 58/899 cut-off events. For 248/613 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5397 event pairs, 30 based on Foata normal form. 2/871 useless extension candidates. Maximal degree in co-relation 1209. Up to 119 conditions per place. [2024-11-08 18:26:44,742 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 19 selfloop transitions, 7 changer transitions 1/150 dead transitions. [2024-11-08 18:26:44,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 150 transitions, 474 flow [2024-11-08 18:26:44,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2024-11-08 18:26:44,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9408983451536643 [2024-11-08 18:26:44,744 INFO L175 Difference]: Start difference. First operand has 153 places, 143 transitions, 397 flow. Second operand 3 states and 398 transitions. [2024-11-08 18:26:44,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 150 transitions, 474 flow [2024-11-08 18:26:44,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 150 transitions, 464 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:44,749 INFO L231 Difference]: Finished difference. Result has 152 places, 146 transitions, 437 flow [2024-11-08 18:26:44,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=437, PETRI_PLACES=152, PETRI_TRANSITIONS=146} [2024-11-08 18:26:44,750 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 11 predicate places. [2024-11-08 18:26:44,750 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 146 transitions, 437 flow [2024-11-08 18:26:44,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:44,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:44,751 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:44,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:26:44,752 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:44,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:44,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1688769397, now seen corresponding path program 1 times [2024-11-08 18:26:44,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:44,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861213991] [2024-11-08 18:26:44,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:44,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 18:26:44,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:44,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861213991] [2024-11-08 18:26:44,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861213991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:44,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:44,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:26:44,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30911074] [2024-11-08 18:26:44,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:44,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:44,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:44,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:44,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 141 [2024-11-08 18:26:44,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 146 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:44,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:44,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 141 [2024-11-08 18:26:44,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:45,027 INFO L124 PetriNetUnfolderBase]: 15/552 cut-off events. [2024-11-08 18:26:45,028 INFO L125 PetriNetUnfolderBase]: For 129/150 co-relation queries the response was YES. [2024-11-08 18:26:45,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 552 events. 15/552 cut-off events. For 129/150 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2323 event pairs, 2 based on Foata normal form. 4/549 useless extension candidates. Maximal degree in co-relation 590. Up to 29 conditions per place. [2024-11-08 18:26:45,030 INFO L140 encePairwiseOnDemand]: 137/141 looper letters, 8 selfloop transitions, 4 changer transitions 4/147 dead transitions. [2024-11-08 18:26:45,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 147 transitions, 458 flow [2024-11-08 18:26:45,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2024-11-08 18:26:45,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9621749408983451 [2024-11-08 18:26:45,033 INFO L175 Difference]: Start difference. First operand has 152 places, 146 transitions, 437 flow. Second operand 3 states and 407 transitions. [2024-11-08 18:26:45,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 147 transitions, 458 flow [2024-11-08 18:26:45,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 147 transitions, 446 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 18:26:45,037 INFO L231 Difference]: Finished difference. Result has 152 places, 140 transitions, 397 flow [2024-11-08 18:26:45,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=152, PETRI_TRANSITIONS=140} [2024-11-08 18:26:45,038 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 11 predicate places. [2024-11-08 18:26:45,038 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 140 transitions, 397 flow [2024-11-08 18:26:45,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:45,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:45,039 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 18:26:45,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:26:45,040 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-08 18:26:45,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:45,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2017345022, now seen corresponding path program 1 times [2024-11-08 18:26:45,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:45,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228450801] [2024-11-08 18:26:45,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:45,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:26:45,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:26:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:26:45,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:26:45,159 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:26:45,159 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-08 18:26:45,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-08 18:26:45,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-08 18:26:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-08 18:26:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-08 18:26:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-08 18:26:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-08 18:26:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-08 18:26:45,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-08 18:26:45,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-08 18:26:45,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:26:45,161 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:45,162 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:26:45,162 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 18:26:45,185 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 18:26:45,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 159 transitions, 345 flow [2024-11-08 18:26:45,258 INFO L124 PetriNetUnfolderBase]: 21/539 cut-off events. [2024-11-08 18:26:45,259 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 18:26:45,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 539 events. 21/539 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1316 event pairs, 1 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 323. Up to 16 conditions per place. [2024-11-08 18:26:45,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 159 transitions, 345 flow [2024-11-08 18:26:45,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 159 transitions, 345 flow [2024-11-08 18:26:45,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:26:45,264 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cca1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:26:45,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-08 18:26:45,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:26:45,268 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 18:26:45,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:26:45,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:45,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:45,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:26:45,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:45,269 INFO L85 PathProgramCache]: Analyzing trace with hash -137227820, now seen corresponding path program 1 times [2024-11-08 18:26:45,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:45,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323714740] [2024-11-08 18:26:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:45,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:45,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:45,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323714740] [2024-11-08 18:26:45,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323714740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:45,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:45,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:26:45,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679337895] [2024-11-08 18:26:45,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:45,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:45,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:45,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:45,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:45,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 159 [2024-11-08 18:26:45,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 159 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:45,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:45,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 159 [2024-11-08 18:26:45,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:46,313 INFO L124 PetriNetUnfolderBase]: 1107/4819 cut-off events. [2024-11-08 18:26:46,314 INFO L125 PetriNetUnfolderBase]: For 394/941 co-relation queries the response was YES. [2024-11-08 18:26:46,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6734 conditions, 4819 events. 1107/4819 cut-off events. For 394/941 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 42252 event pairs, 542 based on Foata normal form. 1/4251 useless extension candidates. Maximal degree in co-relation 5272. Up to 1110 conditions per place. [2024-11-08 18:26:46,346 INFO L140 encePairwiseOnDemand]: 152/159 looper letters, 23 selfloop transitions, 5 changer transitions 1/168 dead transitions. [2024-11-08 18:26:46,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 168 transitions, 419 flow [2024-11-08 18:26:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2024-11-08 18:26:46,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9433962264150944 [2024-11-08 18:26:46,348 INFO L175 Difference]: Start difference. First operand has 160 places, 159 transitions, 345 flow. Second operand 3 states and 450 transitions. [2024-11-08 18:26:46,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 168 transitions, 419 flow [2024-11-08 18:26:46,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 168 transitions, 419 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:26:46,352 INFO L231 Difference]: Finished difference. Result has 164 places, 161 transitions, 379 flow [2024-11-08 18:26:46,353 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=164, PETRI_TRANSITIONS=161} [2024-11-08 18:26:46,353 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 4 predicate places. [2024-11-08 18:26:46,353 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 161 transitions, 379 flow [2024-11-08 18:26:46,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:46,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:46,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:46,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:26:46,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:26:46,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:46,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1193194191, now seen corresponding path program 1 times [2024-11-08 18:26:46,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957767399] [2024-11-08 18:26:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:46,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:46,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957767399] [2024-11-08 18:26:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957767399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903294068] [2024-11-08 18:26:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:46,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:26:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:46,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:26:46,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:26:46,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 159 [2024-11-08 18:26:46,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 161 transitions, 379 flow. Second operand has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:46,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:46,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 159 [2024-11-08 18:26:46,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:47,895 INFO L124 PetriNetUnfolderBase]: 1513/7370 cut-off events. [2024-11-08 18:26:47,896 INFO L125 PetriNetUnfolderBase]: For 408/416 co-relation queries the response was YES. [2024-11-08 18:26:47,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10464 conditions, 7370 events. 1513/7370 cut-off events. For 408/416 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 71989 event pairs, 844 based on Foata normal form. 1/6517 useless extension candidates. Maximal degree in co-relation 6819. Up to 1944 conditions per place. [2024-11-08 18:26:47,955 INFO L140 encePairwiseOnDemand]: 150/159 looper letters, 26 selfloop transitions, 2 changer transitions 6/170 dead transitions. [2024-11-08 18:26:47,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 170 transitions, 465 flow [2024-11-08 18:26:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:47,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 833 transitions. [2024-11-08 18:26:47,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8731656184486373 [2024-11-08 18:26:47,960 INFO L175 Difference]: Start difference. First operand has 164 places, 161 transitions, 379 flow. Second operand 6 states and 833 transitions. [2024-11-08 18:26:47,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 170 transitions, 465 flow [2024-11-08 18:26:47,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 170 transitions, 455 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:26:47,974 INFO L231 Difference]: Finished difference. Result has 170 places, 162 transitions, 393 flow [2024-11-08 18:26:47,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=393, PETRI_PLACES=170, PETRI_TRANSITIONS=162} [2024-11-08 18:26:47,974 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 10 predicate places. [2024-11-08 18:26:47,975 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 162 transitions, 393 flow [2024-11-08 18:26:47,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:47,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:47,975 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:47,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:26:47,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:26:47,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:47,976 INFO L85 PathProgramCache]: Analyzing trace with hash 401072844, now seen corresponding path program 1 times [2024-11-08 18:26:47,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:47,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202170963] [2024-11-08 18:26:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:47,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:48,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202170963] [2024-11-08 18:26:48,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202170963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:48,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:48,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:48,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311025417] [2024-11-08 18:26:48,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:48,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:48,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 159 [2024-11-08 18:26:48,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 162 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:48,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:48,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 159 [2024-11-08 18:26:48,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:50,875 INFO L124 PetriNetUnfolderBase]: 3186/13259 cut-off events. [2024-11-08 18:26:50,875 INFO L125 PetriNetUnfolderBase]: For 507/508 co-relation queries the response was YES. [2024-11-08 18:26:50,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19407 conditions, 13259 events. 3186/13259 cut-off events. For 507/508 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 142953 event pairs, 2460 based on Foata normal form. 0/11565 useless extension candidates. Maximal degree in co-relation 19293. Up to 3699 conditions per place. [2024-11-08 18:26:50,977 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 61 selfloop transitions, 5 changer transitions 0/185 dead transitions. [2024-11-08 18:26:50,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 185 transitions, 571 flow [2024-11-08 18:26:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 762 transitions. [2024-11-08 18:26:50,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7987421383647799 [2024-11-08 18:26:50,980 INFO L175 Difference]: Start difference. First operand has 170 places, 162 transitions, 393 flow. Second operand 6 states and 762 transitions. [2024-11-08 18:26:50,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 185 transitions, 571 flow [2024-11-08 18:26:50,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 185 transitions, 559 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 18:26:50,991 INFO L231 Difference]: Finished difference. Result has 167 places, 161 transitions, 389 flow [2024-11-08 18:26:50,991 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=389, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2024-11-08 18:26:50,992 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 7 predicate places. [2024-11-08 18:26:50,992 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 389 flow [2024-11-08 18:26:50,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:50,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:50,993 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:50,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:26:50,993 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:26:50,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:50,994 INFO L85 PathProgramCache]: Analyzing trace with hash 97131355, now seen corresponding path program 1 times [2024-11-08 18:26:50,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:50,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198629716] [2024-11-08 18:26:50,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:50,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:51,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:51,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198629716] [2024-11-08 18:26:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198629716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:51,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:51,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:51,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644643367] [2024-11-08 18:26:51,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:51,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:51,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:51,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:51,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:51,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 159 [2024-11-08 18:26:51,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:51,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:51,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 159 [2024-11-08 18:26:51,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:53,742 INFO L124 PetriNetUnfolderBase]: 3228/13298 cut-off events. [2024-11-08 18:26:53,742 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-11-08 18:26:53,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19346 conditions, 13298 events. 3228/13298 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 143566 event pairs, 1610 based on Foata normal form. 0/11539 useless extension candidates. Maximal degree in co-relation 12588. Up to 3627 conditions per place. [2024-11-08 18:26:53,828 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 58 selfloop transitions, 5 changer transitions 0/184 dead transitions. [2024-11-08 18:26:53,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 184 transitions, 561 flow [2024-11-08 18:26:53,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:53,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:53,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2024-11-08 18:26:53,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8092243186582809 [2024-11-08 18:26:53,831 INFO L175 Difference]: Start difference. First operand has 167 places, 161 transitions, 389 flow. Second operand 6 states and 772 transitions. [2024-11-08 18:26:53,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 184 transitions, 561 flow [2024-11-08 18:26:53,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 184 transitions, 551 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:53,837 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 387 flow [2024-11-08 18:26:53,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2024-11-08 18:26:53,838 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 6 predicate places. [2024-11-08 18:26:53,838 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 387 flow [2024-11-08 18:26:53,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:53,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:53,839 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:53,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:26:53,839 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:26:53,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:53,840 INFO L85 PathProgramCache]: Analyzing trace with hash 246292143, now seen corresponding path program 1 times [2024-11-08 18:26:53,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:53,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211584268] [2024-11-08 18:26:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:53,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:53,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:53,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211584268] [2024-11-08 18:26:53,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211584268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:53,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:53,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:26:53,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732292224] [2024-11-08 18:26:53,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:53,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:26:53,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:53,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:26:53,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:26:53,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 159 [2024-11-08 18:26:53,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:53,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:53,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 159 [2024-11-08 18:26:53,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:55,428 INFO L124 PetriNetUnfolderBase]: 1838/8332 cut-off events. [2024-11-08 18:26:55,428 INFO L125 PetriNetUnfolderBase]: For 1537/3542 co-relation queries the response was YES. [2024-11-08 18:26:55,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12719 conditions, 8332 events. 1838/8332 cut-off events. For 1537/3542 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 86068 event pairs, 859 based on Foata normal form. 13/7169 useless extension candidates. Maximal degree in co-relation 5066. Up to 2252 conditions per place. [2024-11-08 18:26:55,483 INFO L140 encePairwiseOnDemand]: 152/159 looper letters, 29 selfloop transitions, 9 changer transitions 0/175 dead transitions. [2024-11-08 18:26:55,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 175 transitions, 521 flow [2024-11-08 18:26:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:26:55,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:26:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2024-11-08 18:26:55,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.939203354297694 [2024-11-08 18:26:55,485 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 387 flow. Second operand 3 states and 448 transitions. [2024-11-08 18:26:55,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 175 transitions, 521 flow [2024-11-08 18:26:55,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 175 transitions, 511 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:26:55,490 INFO L231 Difference]: Finished difference. Result has 165 places, 167 transitions, 453 flow [2024-11-08 18:26:55,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=165, PETRI_TRANSITIONS=167} [2024-11-08 18:26:55,491 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 5 predicate places. [2024-11-08 18:26:55,491 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 167 transitions, 453 flow [2024-11-08 18:26:55,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:55,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:55,492 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:55,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 18:26:55,492 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:26:55,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2096278638, now seen corresponding path program 1 times [2024-11-08 18:26:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:55,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347631460] [2024-11-08 18:26:55,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:55,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:26:55,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:55,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347631460] [2024-11-08 18:26:55,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347631460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:26:55,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:26:55,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:26:55,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138902141] [2024-11-08 18:26:55,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:26:55,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:26:55,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:55,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:26:55,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:26:56,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 159 [2024-11-08 18:26:56,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 167 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:56,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:56,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 159 [2024-11-08 18:26:56,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:26:58,412 INFO L124 PetriNetUnfolderBase]: 3805/14605 cut-off events. [2024-11-08 18:26:58,412 INFO L125 PetriNetUnfolderBase]: For 2129/2680 co-relation queries the response was YES. [2024-11-08 18:26:58,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23875 conditions, 14605 events. 3805/14605 cut-off events. For 2129/2680 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 164260 event pairs, 1888 based on Foata normal form. 17/13047 useless extension candidates. Maximal degree in co-relation 18621. Up to 2793 conditions per place. [2024-11-08 18:26:58,507 INFO L140 encePairwiseOnDemand]: 152/159 looper letters, 55 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2024-11-08 18:26:58,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 189 transitions, 617 flow [2024-11-08 18:26:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:26:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:26:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 782 transitions. [2024-11-08 18:26:58,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8197064989517819 [2024-11-08 18:26:58,510 INFO L175 Difference]: Start difference. First operand has 165 places, 167 transitions, 453 flow. Second operand 6 states and 782 transitions. [2024-11-08 18:26:58,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 189 transitions, 617 flow [2024-11-08 18:26:58,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 189 transitions, 599 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:26:58,529 INFO L231 Difference]: Finished difference. Result has 166 places, 165 transitions, 441 flow [2024-11-08 18:26:58,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=166, PETRI_TRANSITIONS=165} [2024-11-08 18:26:58,530 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 6 predicate places. [2024-11-08 18:26:58,531 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 165 transitions, 441 flow [2024-11-08 18:26:58,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:58,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:26:58,531 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:58,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:26:58,532 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:26:58,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:58,532 INFO L85 PathProgramCache]: Analyzing trace with hash -360080751, now seen corresponding path program 1 times [2024-11-08 18:26:58,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:26:58,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413689682] [2024-11-08 18:26:58,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:58,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:26:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:58,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:26:58,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413689682] [2024-11-08 18:26:58,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413689682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:26:58,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608293884] [2024-11-08 18:26:58,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:58,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:26:58,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:26:58,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:26:58,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:26:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:26:58,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:26:58,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:26:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:58,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:26:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:26:58,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608293884] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:26:58,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:26:58,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-08 18:26:58,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672512519] [2024-11-08 18:26:58,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:26:58,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:26:58,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:26:58,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:26:58,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:26:59,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 159 [2024-11-08 18:26:59,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 165 transitions, 441 flow. Second operand has 9 states, 9 states have (on average 131.44444444444446) internal successors, (1183), 9 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:26:59,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:26:59,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 159 [2024-11-08 18:26:59,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:00,522 INFO L124 PetriNetUnfolderBase]: 1819/8912 cut-off events. [2024-11-08 18:27:00,522 INFO L125 PetriNetUnfolderBase]: For 1016/1273 co-relation queries the response was YES. [2024-11-08 18:27:00,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13831 conditions, 8912 events. 1819/8912 cut-off events. For 1016/1273 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 91059 event pairs, 542 based on Foata normal form. 1/7987 useless extension candidates. Maximal degree in co-relation 6559. Up to 1196 conditions per place. [2024-11-08 18:27:00,564 INFO L140 encePairwiseOnDemand]: 147/159 looper letters, 52 selfloop transitions, 11 changer transitions 0/198 dead transitions. [2024-11-08 18:27:00,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 198 transitions, 644 flow [2024-11-08 18:27:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:27:00,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:27:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1098 transitions. [2024-11-08 18:27:00,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8632075471698113 [2024-11-08 18:27:00,568 INFO L175 Difference]: Start difference. First operand has 166 places, 165 transitions, 441 flow. Second operand 8 states and 1098 transitions. [2024-11-08 18:27:00,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 198 transitions, 644 flow [2024-11-08 18:27:00,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 198 transitions, 632 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:27:00,576 INFO L231 Difference]: Finished difference. Result has 171 places, 167 transitions, 476 flow [2024-11-08 18:27:00,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=476, PETRI_PLACES=171, PETRI_TRANSITIONS=167} [2024-11-08 18:27:00,577 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-08 18:27:00,577 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 167 transitions, 476 flow [2024-11-08 18:27:00,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.44444444444446) internal successors, (1183), 9 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:00,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:00,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:00,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:27:00,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea97b00-84ee-4b50-b832-4495b5f67aac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-08 18:27:00,779 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:27:00,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:00,779 INFO L85 PathProgramCache]: Analyzing trace with hash -20303984, now seen corresponding path program 1 times [2024-11-08 18:27:00,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:00,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148649091] [2024-11-08 18:27:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:00,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:27:01,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:01,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148649091] [2024-11-08 18:27:01,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148649091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:01,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:01,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:27:01,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447087669] [2024-11-08 18:27:01,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:01,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:27:01,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:01,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:27:01,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:27:01,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 159 [2024-11-08 18:27:01,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 167 transitions, 476 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:01,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:01,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 159 [2024-11-08 18:27:01,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:03,595 INFO L124 PetriNetUnfolderBase]: 2705/10649 cut-off events. [2024-11-08 18:27:03,595 INFO L125 PetriNetUnfolderBase]: For 1028/1441 co-relation queries the response was YES. [2024-11-08 18:27:03,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17322 conditions, 10649 events. 2705/10649 cut-off events. For 1028/1441 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 113422 event pairs, 1410 based on Foata normal form. 6/9602 useless extension candidates. Maximal degree in co-relation 12771. Up to 2113 conditions per place. [2024-11-08 18:27:03,667 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 48 selfloop transitions, 5 changer transitions 0/190 dead transitions. [2024-11-08 18:27:03,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 190 transitions, 628 flow [2024-11-08 18:27:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:27:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:27:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 822 transitions. [2024-11-08 18:27:03,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8616352201257862 [2024-11-08 18:27:03,672 INFO L175 Difference]: Start difference. First operand has 171 places, 167 transitions, 476 flow. Second operand 6 states and 822 transitions. [2024-11-08 18:27:03,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 190 transitions, 628 flow [2024-11-08 18:27:03,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 190 transitions, 621 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:27:03,681 INFO L231 Difference]: Finished difference. Result has 172 places, 166 transitions, 477 flow [2024-11-08 18:27:03,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=172, PETRI_TRANSITIONS=166} [2024-11-08 18:27:03,682 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 12 predicate places. [2024-11-08 18:27:03,682 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 166 transitions, 477 flow [2024-11-08 18:27:03,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:03,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:03,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-11-08 18:27:03,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 18:27:03,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:27:03,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:03,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1531899743, now seen corresponding path program 1 times [2024-11-08 18:27:03,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:03,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995307380] [2024-11-08 18:27:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:03,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 18:27:03,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995307380] [2024-11-08 18:27:03,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995307380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:03,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:03,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:27:03,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388631053] [2024-11-08 18:27:03,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:03,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:27:03,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:03,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:27:03,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:27:03,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 159 [2024-11-08 18:27:03,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 166 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:03,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:03,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 159 [2024-11-08 18:27:03,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:04,884 INFO L124 PetriNetUnfolderBase]: 1090/6698 cut-off events. [2024-11-08 18:27:04,884 INFO L125 PetriNetUnfolderBase]: For 2488/4226 co-relation queries the response was YES. [2024-11-08 18:27:04,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11366 conditions, 6698 events. 1090/6698 cut-off events. For 2488/4226 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 70588 event pairs, 545 based on Foata normal form. 17/6134 useless extension candidates. Maximal degree in co-relation 10064. Up to 1429 conditions per place. [2024-11-08 18:27:04,922 INFO L140 encePairwiseOnDemand]: 152/159 looper letters, 31 selfloop transitions, 13 changer transitions 0/182 dead transitions. [2024-11-08 18:27:04,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 182 transitions, 638 flow [2024-11-08 18:27:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:27:04,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:27:04,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2024-11-08 18:27:04,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9371069182389937 [2024-11-08 18:27:04,924 INFO L175 Difference]: Start difference. First operand has 172 places, 166 transitions, 477 flow. Second operand 3 states and 447 transitions. [2024-11-08 18:27:04,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 182 transitions, 638 flow [2024-11-08 18:27:04,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 182 transitions, 628 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:27:04,929 INFO L231 Difference]: Finished difference. Result has 171 places, 175 transitions, 585 flow [2024-11-08 18:27:04,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=585, PETRI_PLACES=171, PETRI_TRANSITIONS=175} [2024-11-08 18:27:04,930 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-08 18:27:04,930 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 175 transitions, 585 flow [2024-11-08 18:27:04,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:04,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:04,931 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:04,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:27:04,932 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:27:04,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:04,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1357440789, now seen corresponding path program 1 times [2024-11-08 18:27:04,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:04,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557465358] [2024-11-08 18:27:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:04,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 18:27:05,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:05,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557465358] [2024-11-08 18:27:05,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557465358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:05,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:05,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:27:05,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901649540] [2024-11-08 18:27:05,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:05,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:27:05,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:27:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:27:05,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 159 [2024-11-08 18:27:05,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 175 transitions, 585 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:05,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:05,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 159 [2024-11-08 18:27:05,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:05,546 INFO L124 PetriNetUnfolderBase]: 130/2195 cut-off events. [2024-11-08 18:27:05,547 INFO L125 PetriNetUnfolderBase]: For 731/854 co-relation queries the response was YES. [2024-11-08 18:27:05,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3377 conditions, 2195 events. 130/2195 cut-off events. For 731/854 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 17424 event pairs, 20 based on Foata normal form. 26/2144 useless extension candidates. Maximal degree in co-relation 1313. Up to 142 conditions per place. [2024-11-08 18:27:05,560 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 12 selfloop transitions, 6 changer transitions 0/170 dead transitions. [2024-11-08 18:27:05,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 170 transitions, 558 flow [2024-11-08 18:27:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:27:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:27:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2024-11-08 18:27:05,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9559748427672956 [2024-11-08 18:27:05,562 INFO L175 Difference]: Start difference. First operand has 171 places, 175 transitions, 585 flow. Second operand 3 states and 456 transitions. [2024-11-08 18:27:05,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 170 transitions, 558 flow [2024-11-08 18:27:05,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 170 transitions, 544 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-08 18:27:05,569 INFO L231 Difference]: Finished difference. Result has 171 places, 165 transitions, 489 flow [2024-11-08 18:27:05,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=489, PETRI_PLACES=171, PETRI_TRANSITIONS=165} [2024-11-08 18:27:05,570 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-08 18:27:05,571 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 165 transitions, 489 flow [2024-11-08 18:27:05,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:05,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:05,572 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 18:27:05,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:27:05,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:27:05,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash 223970354, now seen corresponding path program 1 times [2024-11-08 18:27:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:05,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399985379] [2024-11-08 18:27:05,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-08 18:27:05,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:05,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399985379] [2024-11-08 18:27:05,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399985379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:05,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:05,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:27:05,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205739056] [2024-11-08 18:27:05,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:05,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:27:05,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:05,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:27:05,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:27:05,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 159 [2024-11-08 18:27:05,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 165 transitions, 489 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:05,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:05,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 159 [2024-11-08 18:27:05,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:06,205 INFO L124 PetriNetUnfolderBase]: 206/2168 cut-off events. [2024-11-08 18:27:06,205 INFO L125 PetriNetUnfolderBase]: For 1365/1875 co-relation queries the response was YES. [2024-11-08 18:27:06,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3867 conditions, 2168 events. 206/2168 cut-off events. For 1365/1875 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 17806 event pairs, 134 based on Foata normal form. 3/2016 useless extension candidates. Maximal degree in co-relation 3150. Up to 435 conditions per place. [2024-11-08 18:27:06,218 INFO L140 encePairwiseOnDemand]: 154/159 looper letters, 25 selfloop transitions, 5 changer transitions 0/170 dead transitions. [2024-11-08 18:27:06,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 170 transitions, 571 flow [2024-11-08 18:27:06,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:27:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:27:06,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2024-11-08 18:27:06,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9224318658280922 [2024-11-08 18:27:06,220 INFO L175 Difference]: Start difference. First operand has 171 places, 165 transitions, 489 flow. Second operand 3 states and 440 transitions. [2024-11-08 18:27:06,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 170 transitions, 571 flow [2024-11-08 18:27:06,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 565 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:27:06,226 INFO L231 Difference]: Finished difference. Result has 174 places, 168 transitions, 523 flow [2024-11-08 18:27:06,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=174, PETRI_TRANSITIONS=168} [2024-11-08 18:27:06,227 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 14 predicate places. [2024-11-08 18:27:06,227 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 168 transitions, 523 flow [2024-11-08 18:27:06,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:06,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:06,228 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:06,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 18:27:06,228 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 18:27:06,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash 974544012, now seen corresponding path program 1 times [2024-11-08 18:27:06,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:06,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187573230] [2024-11-08 18:27:06,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:06,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:27:06,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:27:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:27:06,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:27:06,369 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:27:06,369 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-08 18:27:06,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-08 18:27:06,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-08 18:27:06,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-08 18:27:06,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-08 18:27:06,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-08 18:27:06,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-08 18:27:06,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-08 18:27:06,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-08 18:27:06,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-08 18:27:06,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-08 18:27:06,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 18:27:06,372 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:06,372 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:27:06,373 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-08 18:27:06,405 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 18:27:06,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 177 transitions, 394 flow [2024-11-08 18:27:06,628 INFO L124 PetriNetUnfolderBase]: 43/939 cut-off events. [2024-11-08 18:27:06,628 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-08 18:27:06,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 939 events. 43/939 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3099 event pairs, 6 based on Foata normal form. 0/819 useless extension candidates. Maximal degree in co-relation 559. Up to 32 conditions per place. [2024-11-08 18:27:06,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 177 transitions, 394 flow [2024-11-08 18:27:06,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 177 transitions, 394 flow [2024-11-08 18:27:06,638 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:27:06,640 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cca1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:27:06,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-08 18:27:06,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:27:06,646 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 18:27:06,646 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:27:06,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:06,646 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:06,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:27:06,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:06,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1882671604, now seen corresponding path program 1 times [2024-11-08 18:27:06,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:06,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048572483] [2024-11-08 18:27:06,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:06,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:06,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:27:06,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:06,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048572483] [2024-11-08 18:27:06,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048572483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:06,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:06,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:27:06,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910445669] [2024-11-08 18:27:06,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:06,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:27:06,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:27:06,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:27:06,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 177 [2024-11-08 18:27:06,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 177 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:06,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:06,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 177 [2024-11-08 18:27:06,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:11,288 INFO L124 PetriNetUnfolderBase]: 8021/26862 cut-off events. [2024-11-08 18:27:11,288 INFO L125 PetriNetUnfolderBase]: For 2959/6674 co-relation queries the response was YES. [2024-11-08 18:27:11,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39212 conditions, 26862 events. 8021/26862 cut-off events. For 2959/6674 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 307082 event pairs, 4292 based on Foata normal form. 1/23959 useless extension candidates. Maximal degree in co-relation 31103. Up to 7653 conditions per place. [2024-11-08 18:27:11,464 INFO L140 encePairwiseOnDemand]: 169/177 looper letters, 30 selfloop transitions, 6 changer transitions 1/189 dead transitions. [2024-11-08 18:27:11,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 189 transitions, 490 flow [2024-11-08 18:27:11,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:27:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:27:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2024-11-08 18:27:11,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.935969868173258 [2024-11-08 18:27:11,467 INFO L175 Difference]: Start difference. First operand has 179 places, 177 transitions, 394 flow. Second operand 3 states and 497 transitions. [2024-11-08 18:27:11,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 189 transitions, 490 flow [2024-11-08 18:27:11,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 189 transitions, 490 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:27:11,473 INFO L231 Difference]: Finished difference. Result has 183 places, 180 transitions, 436 flow [2024-11-08 18:27:11,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=183, PETRI_TRANSITIONS=180} [2024-11-08 18:27:11,474 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 4 predicate places. [2024-11-08 18:27:11,475 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 180 transitions, 436 flow [2024-11-08 18:27:11,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:11,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:11,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:11,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 18:27:11,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:27:11,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:11,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1138904994, now seen corresponding path program 1 times [2024-11-08 18:27:11,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:11,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606606495] [2024-11-08 18:27:11,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:11,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:27:11,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:11,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606606495] [2024-11-08 18:27:11,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606606495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:11,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:11,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:27:11,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629678244] [2024-11-08 18:27:11,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:11,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:27:11,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:11,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:27:11,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:27:11,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 177 [2024-11-08 18:27:11,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 180 transitions, 436 flow. Second operand has 5 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:11,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:11,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 177 [2024-11-08 18:27:11,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:18,368 INFO L124 PetriNetUnfolderBase]: 9876/37966 cut-off events. [2024-11-08 18:27:18,368 INFO L125 PetriNetUnfolderBase]: For 2372/2469 co-relation queries the response was YES. [2024-11-08 18:27:18,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55811 conditions, 37966 events. 9876/37966 cut-off events. For 2372/2469 co-relation queries the response was YES. Maximal size of possible extension queue 925. Compared 470254 event pairs, 6369 based on Foata normal form. 1/32986 useless extension candidates. Maximal degree in co-relation 33936. Up to 11124 conditions per place. [2024-11-08 18:27:18,640 INFO L140 encePairwiseOnDemand]: 168/177 looper letters, 30 selfloop transitions, 2 changer transitions 6/189 dead transitions. [2024-11-08 18:27:18,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 189 transitions, 530 flow [2024-11-08 18:27:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:27:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:27:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 921 transitions. [2024-11-08 18:27:18,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.867231638418079 [2024-11-08 18:27:18,643 INFO L175 Difference]: Start difference. First operand has 183 places, 180 transitions, 436 flow. Second operand 6 states and 921 transitions. [2024-11-08 18:27:18,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 189 transitions, 530 flow [2024-11-08 18:27:18,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 189 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:27:18,765 INFO L231 Difference]: Finished difference. Result has 189 places, 181 transitions, 448 flow [2024-11-08 18:27:18,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=448, PETRI_PLACES=189, PETRI_TRANSITIONS=181} [2024-11-08 18:27:18,766 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 10 predicate places. [2024-11-08 18:27:18,766 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 181 transitions, 448 flow [2024-11-08 18:27:18,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:18,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:18,767 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:18,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 18:27:18,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:27:18,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:18,768 INFO L85 PathProgramCache]: Analyzing trace with hash -318296276, now seen corresponding path program 1 times [2024-11-08 18:27:18,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:18,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810234623] [2024-11-08 18:27:18,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:18,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:27:19,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:19,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810234623] [2024-11-08 18:27:19,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810234623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:19,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:19,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:27:19,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918264314] [2024-11-08 18:27:19,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:19,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:27:19,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:19,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:27:19,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:27:19,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 177 [2024-11-08 18:27:19,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 181 transitions, 448 flow. Second operand has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:19,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:19,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 177 [2024-11-08 18:27:19,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:27:33,451 INFO L124 PetriNetUnfolderBase]: 20619/70505 cut-off events. [2024-11-08 18:27:33,451 INFO L125 PetriNetUnfolderBase]: For 2766/2782 co-relation queries the response was YES. [2024-11-08 18:27:33,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105387 conditions, 70505 events. 20619/70505 cut-off events. For 2766/2782 co-relation queries the response was YES. Maximal size of possible extension queue 1675. Compared 934271 event pairs, 16424 based on Foata normal form. 0/60579 useless extension candidates. Maximal degree in co-relation 105272. Up to 21481 conditions per place. [2024-11-08 18:27:34,150 INFO L140 encePairwiseOnDemand]: 171/177 looper letters, 73 selfloop transitions, 5 changer transitions 0/212 dead transitions. [2024-11-08 18:27:34,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 212 transitions, 666 flow [2024-11-08 18:27:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:27:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:27:34,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2024-11-08 18:27:34,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.807909604519774 [2024-11-08 18:27:34,154 INFO L175 Difference]: Start difference. First operand has 189 places, 181 transitions, 448 flow. Second operand 6 states and 858 transitions. [2024-11-08 18:27:34,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 212 transitions, 666 flow [2024-11-08 18:27:34,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 212 transitions, 654 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 18:27:34,254 INFO L231 Difference]: Finished difference. Result has 186 places, 180 transitions, 444 flow [2024-11-08 18:27:34,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=186, PETRI_TRANSITIONS=180} [2024-11-08 18:27:34,255 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 7 predicate places. [2024-11-08 18:27:34,255 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 180 transitions, 444 flow [2024-11-08 18:27:34,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:34,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:27:34,256 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:34,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 18:27:34,256 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:27:34,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:34,257 INFO L85 PathProgramCache]: Analyzing trace with hash 51351131, now seen corresponding path program 1 times [2024-11-08 18:27:34,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:34,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218939849] [2024-11-08 18:27:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:34,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:27:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:27:34,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:27:34,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218939849] [2024-11-08 18:27:34,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218939849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:27:34,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:27:34,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:27:34,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671939617] [2024-11-08 18:27:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:27:34,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:27:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:27:34,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:27:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:27:34,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 177 [2024-11-08 18:27:34,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 180 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:27:34,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:27:34,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 177 [2024-11-08 18:27:34,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand