./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.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_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/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_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/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_8c0d4a49-6095-43da-a18e-55334ec33037/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 ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:26:30,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:26:31,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:26:31,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:26:31,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:26:31,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:26:31,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:26:31,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:26:31,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:26:31,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:26:31,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:26:31,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:26:31,062 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:26:31,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:26:31,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:26:31,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:26:31,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:26:31,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:26:31,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:26:31,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:26:31,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:26:31,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:26:31,077 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:26:31,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:26:31,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:26:31,079 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:26:31,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:26:31,080 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:26:31,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:26:31,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:26:31,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:26:31,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:26:31,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:26:31,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:26:31,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:26:31,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:26:31,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:26:31,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:26:31,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:26:31,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:26:31,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:26:31,087 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_8c0d4a49-6095-43da-a18e-55334ec33037/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca [2024-11-08 17:26:31,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:26:31,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:26:31,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:26:31,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:26:31,465 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:26:31,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i Unable to find full path for "g++" [2024-11-08 17:26:33,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:26:34,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:26:34,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i [2024-11-08 17:26:34,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/data/7f0f4c8bc/61301fc81a2b44538a609ae5b0d99fd7/FLAGa8105cb74 [2024-11-08 17:26:34,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/data/7f0f4c8bc/61301fc81a2b44538a609ae5b0d99fd7 [2024-11-08 17:26:34,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:26:34,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:26:34,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:26:34,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:26:34,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:26:34,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:26:34" (1/1) ... [2024-11-08 17:26:34,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643a35dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:34, skipping insertion in model container [2024-11-08 17:26:34,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:26:34" (1/1) ... [2024-11-08 17:26:34,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:26:35,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:26:35,428 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:26:35,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:26:35,580 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:26:35,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35 WrapperNode [2024-11-08 17:26:35,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:26:35,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:26:35,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:26:35,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:26:35,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,648 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-11-08 17:26:35,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:26:35,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:26:35,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:26:35,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:26:35,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:26:35,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:26:35,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:26:35,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:26:35,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:26:35,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:26:35,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:26:35,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:26:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:26:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:26:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:26:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:26:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:26:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:26:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:26:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:26:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-08 17:26:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-08 17:26:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:26:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:26:35,836 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 17:26:36,084 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:26:36,088 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:26:36,448 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:26:36,448 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:26:36,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:26:36,483 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:26:36,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:36 BoogieIcfgContainer [2024-11-08 17:26:36,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:26:36,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:26:36,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:26:36,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:26:36,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:26:34" (1/3) ... [2024-11-08 17:26:36,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117ca7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:26:36, skipping insertion in model container [2024-11-08 17:26:36,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35" (2/3) ... [2024-11-08 17:26:36,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117ca7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:26:36, skipping insertion in model container [2024-11-08 17:26:36,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:36" (3/3) ... [2024-11-08 17:26:36,495 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race.i [2024-11-08 17:26:36,518 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:26:36,519 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-08 17:26:36,519 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:26:36,607 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:26:36,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 93 transitions, 193 flow [2024-11-08 17:26:36,764 INFO L124 PetriNetUnfolderBase]: 6/129 cut-off events. [2024-11-08 17:26:36,764 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:26:36,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 129 events. 6/129 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 216 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-11-08 17:26:36,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 93 transitions, 193 flow [2024-11-08 17:26:36,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 93 transitions, 193 flow [2024-11-08 17:26:36,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:26:36,806 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;@20b74270, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:26:36,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 17:26:36,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:26:36,824 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 17:26:36,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:26:36,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:36,825 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 17:26:36,826 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 17:26:36,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1412889626, now seen corresponding path program 1 times [2024-11-08 17:26:36,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:36,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211726235] [2024-11-08 17:26:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:36,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:37,147 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 17:26:37,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:37,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211726235] [2024-11-08 17:26:37,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211726235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:37,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:37,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:37,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286846677] [2024-11-08 17:26:37,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:37,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:37,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:37,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:37,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:37,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 93 [2024-11-08 17:26:37,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 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 17:26:37,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:37,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 93 [2024-11-08 17:26:37,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:37,355 INFO L124 PetriNetUnfolderBase]: 12/171 cut-off events. [2024-11-08 17:26:37,355 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-08 17:26:37,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 171 events. 12/171 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 433 event pairs, 1 based on Foata normal form. 1/151 useless extension candidates. Maximal degree in co-relation 126. Up to 16 conditions per place. [2024-11-08 17:26:37,360 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 8 selfloop transitions, 3 changer transitions 2/96 dead transitions. [2024-11-08 17:26:37,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 223 flow [2024-11-08 17:26:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:37,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:26:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2024-11-08 17:26:37,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953405017921147 [2024-11-08 17:26:37,386 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 193 flow. Second operand 3 states and 266 transitions. [2024-11-08 17:26:37,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 223 flow [2024-11-08 17:26:37,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 96 transitions, 223 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:26:37,402 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 211 flow [2024-11-08 17:26:37,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-11-08 17:26:37,415 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 4 predicate places. [2024-11-08 17:26:37,416 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 211 flow [2024-11-08 17:26:37,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 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 17:26:37,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:37,417 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 17:26:37,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:26:37,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 17:26:37,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:37,421 INFO L85 PathProgramCache]: Analyzing trace with hash 784575455, now seen corresponding path program 1 times [2024-11-08 17:26:37,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:37,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837327472] [2024-11-08 17:26:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:37,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:37,774 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 17:26:37,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:37,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837327472] [2024-11-08 17:26:37,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837327472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:37,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:37,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:26:37,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133978030] [2024-11-08 17:26:37,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:37,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:26:37,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:37,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:26:37,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:26:37,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 93 [2024-11-08 17:26:37,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 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 17:26:37,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:37,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 93 [2024-11-08 17:26:37,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:38,150 INFO L124 PetriNetUnfolderBase]: 27/254 cut-off events. [2024-11-08 17:26:38,154 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 17:26:38,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 254 events. 27/254 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 902 event pairs, 1 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 252. Up to 58 conditions per place. [2024-11-08 17:26:38,157 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 17 selfloop transitions, 2 changer transitions 6/101 dead transitions. [2024-11-08 17:26:38,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 101 transitions, 277 flow [2024-11-08 17:26:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:26:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:26:38,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 476 transitions. [2024-11-08 17:26:38,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8530465949820788 [2024-11-08 17:26:38,170 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 211 flow. Second operand 6 states and 476 transitions. [2024-11-08 17:26:38,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 101 transitions, 277 flow [2024-11-08 17:26:38,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 101 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:26:38,178 INFO L231 Difference]: Finished difference. Result has 102 places, 93 transitions, 225 flow [2024-11-08 17:26:38,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2024-11-08 17:26:38,179 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 10 predicate places. [2024-11-08 17:26:38,181 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 225 flow [2024-11-08 17:26:38,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 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 17:26:38,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:38,183 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 17:26:38,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:26:38,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 17:26:38,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:38,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1159940498, now seen corresponding path program 1 times [2024-11-08 17:26:38,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:38,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688251443] [2024-11-08 17:26:38,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:38,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:38,916 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 17:26:38,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:38,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688251443] [2024-11-08 17:26:38,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688251443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:38,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:38,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:26:38,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238284043] [2024-11-08 17:26:38,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:38,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:26:38,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:38,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:26:38,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:26:39,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 93 [2024-11-08 17:26:39,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 17:26:39,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:39,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 93 [2024-11-08 17:26:39,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:39,322 INFO L124 PetriNetUnfolderBase]: 37/257 cut-off events. [2024-11-08 17:26:39,323 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-08 17:26:39,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 257 events. 37/257 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1053 event pairs, 11 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 311. Up to 61 conditions per place. [2024-11-08 17:26:39,330 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 24 selfloop transitions, 5 changer transitions 0/100 dead transitions. [2024-11-08 17:26:39,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 100 transitions, 297 flow [2024-11-08 17:26:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:26:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:26:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 450 transitions. [2024-11-08 17:26:39,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8064516129032258 [2024-11-08 17:26:39,339 INFO L175 Difference]: Start difference. First operand has 102 places, 93 transitions, 225 flow. Second operand 6 states and 450 transitions. [2024-11-08 17:26:39,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 100 transitions, 297 flow [2024-11-08 17:26:39,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 100 transitions, 283 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-08 17:26:39,346 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 219 flow [2024-11-08 17:26:39,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-11-08 17:26:39,348 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 6 predicate places. [2024-11-08 17:26:39,349 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 219 flow [2024-11-08 17:26:39,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 17:26:39,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:39,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:39,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:26:39,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 17:26:39,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:39,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1129985790, now seen corresponding path program 1 times [2024-11-08 17:26:39,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:39,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157440881] [2024-11-08 17:26:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:39,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:39,433 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 17:26:39,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:39,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157440881] [2024-11-08 17:26:39,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157440881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:39,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:39,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:39,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553099978] [2024-11-08 17:26:39,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:39,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:39,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:39,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:39,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:39,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 93 [2024-11-08 17:26:39,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 17:26:39,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:39,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 93 [2024-11-08 17:26:39,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:39,516 INFO L124 PetriNetUnfolderBase]: 8/176 cut-off events. [2024-11-08 17:26:39,516 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-11-08 17:26:39,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 176 events. 8/176 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 489 event pairs, 3 based on Foata normal form. 1/163 useless extension candidates. Maximal degree in co-relation 182. Up to 25 conditions per place. [2024-11-08 17:26:39,518 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 8 selfloop transitions, 4 changer transitions 3/95 dead transitions. [2024-11-08 17:26:39,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 255 flow [2024-11-08 17:26:39,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:26:39,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-11-08 17:26:39,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931899641577061 [2024-11-08 17:26:39,522 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 219 flow. Second operand 3 states and 260 transitions. [2024-11-08 17:26:39,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 255 flow [2024-11-08 17:26:39,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 95 transitions, 245 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:26:39,528 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 231 flow [2024-11-08 17:26:39,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-11-08 17:26:39,531 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 5 predicate places. [2024-11-08 17:26:39,532 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 231 flow [2024-11-08 17:26:39,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 17:26:39,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:39,533 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] [2024-11-08 17:26:39,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:26:39,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 17:26:39,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:39,537 INFO L85 PathProgramCache]: Analyzing trace with hash 720555243, now seen corresponding path program 1 times [2024-11-08 17:26:39,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:39,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942172298] [2024-11-08 17:26:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:39,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:39,812 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 17:26:39,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:39,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942172298] [2024-11-08 17:26:39,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942172298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:26:39,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670568446] [2024-11-08 17:26:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:39,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:26:39,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:26:39,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:26:39,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:26:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:39,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:26:39,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:26:40,146 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 17:26:40,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:26:40,304 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 17:26:40,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670568446] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:26:40,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:26:40,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-08 17:26:40,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831942111] [2024-11-08 17:26:40,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:26:40,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:26:40,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:40,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:26:40,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:26:40,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2024-11-08 17:26:40,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 231 flow. Second operand has 11 states, 11 states have (on average 71.18181818181819) internal successors, (783), 11 states have internal predecessors, (783), 0 states have call successors, (0), 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 17:26:40,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:40,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2024-11-08 17:26:40,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:40,874 INFO L124 PetriNetUnfolderBase]: 26/204 cut-off events. [2024-11-08 17:26:40,875 INFO L125 PetriNetUnfolderBase]: For 22/26 co-relation queries the response was YES. [2024-11-08 17:26:40,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 204 events. 26/204 cut-off events. For 22/26 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 783 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 279. Up to 15 conditions per place. [2024-11-08 17:26:40,877 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 20 selfloop transitions, 10 changer transitions 4/93 dead transitions. [2024-11-08 17:26:40,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 93 transitions, 298 flow [2024-11-08 17:26:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:26:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:26:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 656 transitions. [2024-11-08 17:26:40,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7837514934289128 [2024-11-08 17:26:40,881 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 231 flow. Second operand 9 states and 656 transitions. [2024-11-08 17:26:40,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 93 transitions, 298 flow [2024-11-08 17:26:40,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 93 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:26:40,886 INFO L231 Difference]: Finished difference. Result has 90 places, 77 transitions, 210 flow [2024-11-08 17:26:40,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=210, PETRI_PLACES=90, PETRI_TRANSITIONS=77} [2024-11-08 17:26:40,887 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, -2 predicate places. [2024-11-08 17:26:40,888 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 77 transitions, 210 flow [2024-11-08 17:26:40,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 71.18181818181819) internal successors, (783), 11 states have internal predecessors, (783), 0 states have call successors, (0), 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 17:26:40,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:40,889 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-08 17:26:40,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:26:41,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:26:41,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 17:26:41,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:41,096 INFO L85 PathProgramCache]: Analyzing trace with hash 711923915, now seen corresponding path program 1 times [2024-11-08 17:26:41,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:41,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104250761] [2024-11-08 17:26:41,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:41,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:26:41,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:26:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:26:41,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:26:41,184 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:26:41,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-08 17:26:41,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-08 17:26:41,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-08 17:26:41,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-08 17:26:41,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-08 17:26:41,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-08 17:26:41,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:26:41,191 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 17:26:41,195 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:26:41,195 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:26:41,230 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:26:41,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 111 transitions, 238 flow [2024-11-08 17:26:41,287 INFO L124 PetriNetUnfolderBase]: 11/219 cut-off events. [2024-11-08 17:26:41,287 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:26:41,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 219 events. 11/219 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 454 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 131. Up to 8 conditions per place. [2024-11-08 17:26:41,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 111 transitions, 238 flow [2024-11-08 17:26:41,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 111 transitions, 238 flow [2024-11-08 17:26:41,293 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:26:41,296 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;@20b74270, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:26:41,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 17:26:41,308 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:26:41,309 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 17:26:41,309 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:26:41,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:41,309 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 17:26:41,311 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:26:41,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:41,311 INFO L85 PathProgramCache]: Analyzing trace with hash 495724538, now seen corresponding path program 1 times [2024-11-08 17:26:41,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:41,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136387948] [2024-11-08 17:26:41,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:41,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:41,362 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 17:26:41,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:41,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136387948] [2024-11-08 17:26:41,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136387948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:41,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:41,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:41,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396025590] [2024-11-08 17:26:41,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:41,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:41,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:41,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:41,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-08 17:26:41,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 17:26:41,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:41,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-08 17:26:41,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:41,587 INFO L124 PetriNetUnfolderBase]: 129/751 cut-off events. [2024-11-08 17:26:41,587 INFO L125 PetriNetUnfolderBase]: For 44/70 co-relation queries the response was YES. [2024-11-08 17:26:41,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 751 events. 129/751 cut-off events. For 44/70 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4290 event pairs, 50 based on Foata normal form. 1/657 useless extension candidates. Maximal degree in co-relation 761. Up to 139 conditions per place. [2024-11-08 17:26:41,594 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 16 selfloop transitions, 4 changer transitions 1/117 dead transitions. [2024-11-08 17:26:41,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 117 transitions, 290 flow [2024-11-08 17:26:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:41,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:26:41,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2024-11-08 17:26:41,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.93993993993994 [2024-11-08 17:26:41,598 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 238 flow. Second operand 3 states and 313 transitions. [2024-11-08 17:26:41,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 117 transitions, 290 flow [2024-11-08 17:26:41,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:26:41,604 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 264 flow [2024-11-08 17:26:41,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=115, PETRI_TRANSITIONS=112} [2024-11-08 17:26:41,605 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 4 predicate places. [2024-11-08 17:26:41,605 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 264 flow [2024-11-08 17:26:41,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 17:26:41,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:41,606 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 17:26:41,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:26:41,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:26:41,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:41,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2101486222, now seen corresponding path program 1 times [2024-11-08 17:26:41,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:41,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486747507] [2024-11-08 17:26:41,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:41,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:41,736 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 17:26:41,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486747507] [2024-11-08 17:26:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486747507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:41,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:41,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:26:41,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241780816] [2024-11-08 17:26:41,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:41,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:26:41,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:41,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:26:41,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:26:41,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2024-11-08 17:26:41,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 112 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 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 17:26:41,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:41,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2024-11-08 17:26:41,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:42,222 INFO L124 PetriNetUnfolderBase]: 220/1333 cut-off events. [2024-11-08 17:26:42,223 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-08 17:26:42,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1882 conditions, 1333 events. 220/1333 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9699 event pairs, 84 based on Foata normal form. 1/1212 useless extension candidates. Maximal degree in co-relation 1274. Up to 347 conditions per place. [2024-11-08 17:26:42,234 INFO L140 encePairwiseOnDemand]: 102/111 looper letters, 22 selfloop transitions, 2 changer transitions 6/121 dead transitions. [2024-11-08 17:26:42,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 121 transitions, 342 flow [2024-11-08 17:26:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:26:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:26:42,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 565 transitions. [2024-11-08 17:26:42,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8483483483483484 [2024-11-08 17:26:42,237 INFO L175 Difference]: Start difference. First operand has 115 places, 112 transitions, 264 flow. Second operand 6 states and 565 transitions. [2024-11-08 17:26:42,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 121 transitions, 342 flow [2024-11-08 17:26:42,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 121 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:26:42,244 INFO L231 Difference]: Finished difference. Result has 121 places, 113 transitions, 280 flow [2024-11-08 17:26:42,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=280, PETRI_PLACES=121, PETRI_TRANSITIONS=113} [2024-11-08 17:26:42,247 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 10 predicate places. [2024-11-08 17:26:42,247 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 113 transitions, 280 flow [2024-11-08 17:26:42,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 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 17:26:42,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:42,252 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 17:26:42,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:26:42,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:26:42,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash 156970269, now seen corresponding path program 1 times [2024-11-08 17:26:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:42,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987201809] [2024-11-08 17:26:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:42,666 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 17:26:42,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:42,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987201809] [2024-11-08 17:26:42,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987201809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:42,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:42,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:26:42,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631892716] [2024-11-08 17:26:42,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:42,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:26:42,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:26:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:26:42,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2024-11-08 17:26:42,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 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 17:26:42,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:42,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2024-11-08 17:26:42,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:43,233 INFO L124 PetriNetUnfolderBase]: 329/1345 cut-off events. [2024-11-08 17:26:43,233 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-08 17:26:43,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2160 conditions, 1345 events. 329/1345 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 9999 event pairs, 130 based on Foata normal form. 0/1228 useless extension candidates. Maximal degree in co-relation 999. Up to 371 conditions per place. [2024-11-08 17:26:43,246 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 37 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-11-08 17:26:43,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 128 transitions, 394 flow [2024-11-08 17:26:43,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:26:43,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:26:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions. [2024-11-08 17:26:43,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8198198198198198 [2024-11-08 17:26:43,250 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 280 flow. Second operand 6 states and 546 transitions. [2024-11-08 17:26:43,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 128 transitions, 394 flow [2024-11-08 17:26:43,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 128 transitions, 382 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 17:26:43,258 INFO L231 Difference]: Finished difference. Result has 118 places, 112 transitions, 276 flow [2024-11-08 17:26:43,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=118, PETRI_TRANSITIONS=112} [2024-11-08 17:26:43,260 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 7 predicate places. [2024-11-08 17:26:43,260 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 112 transitions, 276 flow [2024-11-08 17:26:43,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 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 17:26:43,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:43,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:43,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:26:43,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:26:43,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:43,264 INFO L85 PathProgramCache]: Analyzing trace with hash -257255359, now seen corresponding path program 1 times [2024-11-08 17:26:43,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:43,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974312887] [2024-11-08 17:26:43,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:43,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:43,333 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 17:26:43,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:43,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974312887] [2024-11-08 17:26:43,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974312887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:43,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:43,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:43,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469278716] [2024-11-08 17:26:43,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:43,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:43,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:43,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:43,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 111 [2024-11-08 17:26:43,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 112 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 17:26:43,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:43,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 111 [2024-11-08 17:26:43,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:43,570 INFO L124 PetriNetUnfolderBase]: 176/1020 cut-off events. [2024-11-08 17:26:43,570 INFO L125 PetriNetUnfolderBase]: For 164/318 co-relation queries the response was YES. [2024-11-08 17:26:43,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1592 conditions, 1020 events. 176/1020 cut-off events. For 164/318 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7305 event pairs, 88 based on Foata normal form. 3/898 useless extension candidates. Maximal degree in co-relation 1298. Up to 269 conditions per place. [2024-11-08 17:26:43,578 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 19 selfloop transitions, 7 changer transitions 0/121 dead transitions. [2024-11-08 17:26:43,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 121 transitions, 360 flow [2024-11-08 17:26:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:26:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2024-11-08 17:26:43,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9279279279279279 [2024-11-08 17:26:43,580 INFO L175 Difference]: Start difference. First operand has 118 places, 112 transitions, 276 flow. Second operand 3 states and 309 transitions. [2024-11-08 17:26:43,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 121 transitions, 360 flow [2024-11-08 17:26:43,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 121 transitions, 350 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:26:43,585 INFO L231 Difference]: Finished difference. Result has 117 places, 117 transitions, 322 flow [2024-11-08 17:26:43,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=117, PETRI_TRANSITIONS=117} [2024-11-08 17:26:43,586 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2024-11-08 17:26:43,586 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 117 transitions, 322 flow [2024-11-08 17:26:43,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 17:26:43,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:43,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:43,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:26:43,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:26:43,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:43,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1413458774, now seen corresponding path program 1 times [2024-11-08 17:26:43,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:43,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728695808] [2024-11-08 17:26:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:43,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:43,794 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 17:26:43,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:43,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728695808] [2024-11-08 17:26:43,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728695808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:26:43,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339651951] [2024-11-08 17:26:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:43,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:26:43,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:26:43,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:26:43,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:26:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:43,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:26:43,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:26:44,030 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 17:26:44,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:26:44,148 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 17:26:44,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339651951] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:26:44,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:26:44,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-08 17:26:44,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296617957] [2024-11-08 17:26:44,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:26:44,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:26:44,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:44,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:26:44,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:26:44,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 111 [2024-11-08 17:26:44,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 117 transitions, 322 flow. Second operand has 11 states, 11 states have (on average 85.18181818181819) internal successors, (937), 11 states have internal predecessors, (937), 0 states have call successors, (0), 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 17:26:44,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:44,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 111 [2024-11-08 17:26:44,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:44,987 INFO L124 PetriNetUnfolderBase]: 414/1746 cut-off events. [2024-11-08 17:26:44,987 INFO L125 PetriNetUnfolderBase]: For 249/289 co-relation queries the response was YES. [2024-11-08 17:26:44,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2935 conditions, 1746 events. 414/1746 cut-off events. For 249/289 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 13665 event pairs, 42 based on Foata normal form. 0/1535 useless extension candidates. Maximal degree in co-relation 1519. Up to 513 conditions per place. [2024-11-08 17:26:45,003 INFO L140 encePairwiseOnDemand]: 98/111 looper letters, 45 selfloop transitions, 14 changer transitions 2/150 dead transitions. [2024-11-08 17:26:45,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 150 transitions, 514 flow [2024-11-08 17:26:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:26:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:26:45,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 892 transitions. [2024-11-08 17:26:45,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8036036036036036 [2024-11-08 17:26:45,007 INFO L175 Difference]: Start difference. First operand has 117 places, 117 transitions, 322 flow. Second operand 10 states and 892 transitions. [2024-11-08 17:26:45,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 150 transitions, 514 flow [2024-11-08 17:26:45,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 150 transitions, 500 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:26:45,013 INFO L231 Difference]: Finished difference. Result has 131 places, 126 transitions, 399 flow [2024-11-08 17:26:45,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=399, PETRI_PLACES=131, PETRI_TRANSITIONS=126} [2024-11-08 17:26:45,014 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 20 predicate places. [2024-11-08 17:26:45,014 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 126 transitions, 399 flow [2024-11-08 17:26:45,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 85.18181818181819) internal successors, (937), 11 states have internal predecessors, (937), 0 states have call successors, (0), 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 17:26:45,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:45,016 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] [2024-11-08 17:26:45,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:26:45,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:26:45,218 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:26:45,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1333698415, now seen corresponding path program 1 times [2024-11-08 17:26:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:45,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500706921] [2024-11-08 17:26:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:45,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:26:45,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:26:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:26:45,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:26:45,277 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:26:45,277 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-08 17:26:45,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-08 17:26:45,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-08 17:26:45,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-08 17:26:45,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-08 17:26:45,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-08 17:26:45,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-08 17:26:45,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:26:45,279 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 17:26:45,331 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-08 17:26:45,331 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:26:45,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:26:45 BasicIcfg [2024-11-08 17:26:45,339 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:26:45,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:26:45,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:26:45,341 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:26:45,341 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:36" (3/4) ... [2024-11-08 17:26:45,343 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 17:26:45,414 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:26:45,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:26:45,415 INFO L158 Benchmark]: Toolchain (without parser) took 10841.16ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 155.5MB in the beginning and 184.0MB in the end (delta: -28.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-11-08 17:26:45,415 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:26:45,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1005.96ms. Allocated memory is still 188.7MB. Free memory was 155.5MB in the beginning and 123.8MB in the end (delta: 31.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-08 17:26:45,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.65ms. Allocated memory is still 188.7MB. Free memory was 123.8MB in the beginning and 121.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:26:45,416 INFO L158 Benchmark]: Boogie Preprocessor took 41.88ms. Allocated memory is still 188.7MB. Free memory was 121.2MB in the beginning and 119.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:26:45,417 INFO L158 Benchmark]: RCFGBuilder took 790.88ms. Allocated memory is still 188.7MB. Free memory was 119.7MB in the beginning and 152.9MB in the end (delta: -33.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 17:26:45,417 INFO L158 Benchmark]: TraceAbstraction took 8852.72ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 151.8MB in the beginning and 191.4MB in the end (delta: -39.6MB). Peak memory consumption was 133.7MB. Max. memory is 16.1GB. [2024-11-08 17:26:45,418 INFO L158 Benchmark]: Witness Printer took 74.04ms. Allocated memory is still 232.8MB. Free memory was 191.4MB in the beginning and 184.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 17:26:45,421 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1005.96ms. Allocated memory is still 188.7MB. Free memory was 155.5MB in the beginning and 123.8MB in the end (delta: 31.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.65ms. Allocated memory is still 188.7MB. Free memory was 123.8MB in the beginning and 121.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.88ms. Allocated memory is still 188.7MB. Free memory was 121.2MB in the beginning and 119.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 790.88ms. Allocated memory is still 188.7MB. Free memory was 119.7MB in the beginning and 152.9MB in the end (delta: -33.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8852.72ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 151.8MB in the beginning and 191.4MB in the end (delta: -39.6MB). Peak memory consumption was 133.7MB. Max. memory is 16.1GB. * Witness Printer took 74.04ms. Allocated memory is still 232.8MB. Free memory was 191.4MB in the beginning and 184.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1023]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 int data = 0; VAL [data=0] [L1020] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L1028] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_total=1] [L1029] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}] [L1029] RET 0 assume_abort_if_not(threads_total >= 0) [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, data_mutex={1:0}, threads_total=1, tids={-2:0}] [L1031] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1031] COND FALSE 0 !(i < threads_total) VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=1, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=1, tids={-2:0}] [L1034] 0 int i = 0; VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1034] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1038] 0 return data; VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=1, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [1038] and C: data = __VERIFIER_nondet_int() [1023] - UnprovableResult [Line: 1038]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 464 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 330 mSDsluCounter, 351 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 721 IncrementalHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 43 mSDtfsCounter, 721 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 108 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 6 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 124 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 512 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 377 mSDsluCounter, 362 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 307 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 846 IncrementalHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 55 mSDtfsCounter, 846 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 108 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=399occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 6 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-08 17:26:45,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0d4a49-6095-43da-a18e-55334ec33037/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE