./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.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_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/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_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/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_321758ad-b748-4b3a-9abf-ff06d813aa38/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 ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:41:00,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:41:01,032 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:41:01,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:41:01,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:41:01,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:41:01,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:41:01,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:41:01,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:41:01,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:41:01,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:41:01,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:41:01,097 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:41:01,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:41:01,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:41:01,098 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:41:01,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:41:01,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:41:01,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:41:01,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:41:01,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:41:01,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:41:01,109 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:41:01,109 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:41:01,110 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:41:01,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:41:01,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:41:01,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:41:01,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:41:01,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:41:01,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:41:01,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:41:01,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:41:01,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:41:01,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:41:01,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:41:01,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:41:01,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:41:01,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:41:01,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:41:01,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:41:01,116 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_321758ad-b748-4b3a-9abf-ff06d813aa38/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c [2024-11-08 17:41:01,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:41:01,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:41:01,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:41:01,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:41:01,530 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:41:01,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i Unable to find full path for "g++" [2024-11-08 17:41:03,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:41:04,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:41:04,287 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-11-08 17:41:04,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/data/6b82e820a/9c100575a7fc4223aea2f6719f07e950/FLAGe22b497f8 [2024-11-08 17:41:04,477 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/data/6b82e820a/9c100575a7fc4223aea2f6719f07e950 [2024-11-08 17:41:04,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:41:04,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:41:04,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:41:04,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:41:04,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:41:04,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:41:04" (1/1) ... [2024-11-08 17:41:04,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e8bd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:04, skipping insertion in model container [2024-11-08 17:41:04,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:41:04" (1/1) ... [2024-11-08 17:41:04,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:41:05,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:41:05,355 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:41:05,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:41:05,511 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:41:05,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05 WrapperNode [2024-11-08 17:41:05,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:41:05,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:41:05,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:41:05,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:41:05,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,605 INFO L138 Inliner]: procedures = 252, calls = 53, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 209 [2024-11-08 17:41:05,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:41:05,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:41:05,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:41:05,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:41:05,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,649 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:41:05,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:41:05,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:41:05,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:41:05,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (1/1) ... [2024-11-08 17:41:05,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:41:05,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:41:05,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:41:05,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:41:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:41:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:41:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:41:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:41:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:41:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:41:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:41:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:41:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:41:05,771 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 17:41:06,031 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:41:06,035 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:41:06,661 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:41:06,661 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:41:06,750 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:41:06,750 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-08 17:41:06,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:41:06 BoogieIcfgContainer [2024-11-08 17:41:06,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:41:06,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:41:06,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:41:06,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:41:06,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:41:04" (1/3) ... [2024-11-08 17:41:06,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f05042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:41:06, skipping insertion in model container [2024-11-08 17:41:06,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:41:05" (2/3) ... [2024-11-08 17:41:06,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f05042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:41:06, skipping insertion in model container [2024-11-08 17:41:06,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:41:06" (3/3) ... [2024-11-08 17:41:06,765 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2024-11-08 17:41:06,787 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:41:06,787 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-08 17:41:06,787 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:41:06,902 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:41:06,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 217 transitions, 441 flow [2024-11-08 17:41:07,127 INFO L124 PetriNetUnfolderBase]: 26/288 cut-off events. [2024-11-08 17:41:07,127 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:41:07,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 288 events. 26/288 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1009 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 178. Up to 4 conditions per place. [2024-11-08 17:41:07,138 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 217 transitions, 441 flow [2024-11-08 17:41:07,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 217 transitions, 441 flow [2024-11-08 17:41:07,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:41:07,182 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;@77300f4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:41:07,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-08 17:41:07,210 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:41:07,210 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-08 17:41:07,210 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:41:07,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:07,212 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] [2024-11-08 17:41:07,213 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 17:41:07,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:07,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1374932641, now seen corresponding path program 1 times [2024-11-08 17:41:07,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:07,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025814419] [2024-11-08 17:41:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:07,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:07,746 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 17:41:07,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:07,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025814419] [2024-11-08 17:41:07,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025814419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:07,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:07,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:07,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222856852] [2024-11-08 17:41:07,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:07,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:07,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:07,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:07,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:07,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-11-08 17:41:07,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 217 transitions, 441 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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 17:41:07,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:07,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-11-08 17:41:07,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:08,431 INFO L124 PetriNetUnfolderBase]: 148/1165 cut-off events. [2024-11-08 17:41:08,432 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 17:41:08,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1165 events. 148/1165 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7805 event pairs, 0 based on Foata normal form. 128/1172 useless extension candidates. Maximal degree in co-relation 1359. Up to 267 conditions per place. [2024-11-08 17:41:08,451 INFO L140 encePairwiseOnDemand]: 197/217 looper letters, 37 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2024-11-08 17:41:08,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 211 transitions, 507 flow [2024-11-08 17:41:08,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:41:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-11-08 17:41:08,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9032258064516129 [2024-11-08 17:41:08,482 INFO L175 Difference]: Start difference. First operand has 200 places, 217 transitions, 441 flow. Second operand 3 states and 588 transitions. [2024-11-08 17:41:08,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 211 transitions, 507 flow [2024-11-08 17:41:08,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 211 transitions, 507 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:41:08,501 INFO L231 Difference]: Finished difference. Result has 201 places, 199 transitions, 415 flow [2024-11-08 17:41:08,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=201, PETRI_TRANSITIONS=199} [2024-11-08 17:41:08,509 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 1 predicate places. [2024-11-08 17:41:08,510 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 199 transitions, 415 flow [2024-11-08 17:41:08,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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 17:41:08,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:08,512 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] [2024-11-08 17:41:08,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:41:08,513 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 17:41:08,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:08,514 INFO L85 PathProgramCache]: Analyzing trace with hash 643194718, now seen corresponding path program 1 times [2024-11-08 17:41:08,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:08,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209833676] [2024-11-08 17:41:08,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:08,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:09,444 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 17:41:09,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:09,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209833676] [2024-11-08 17:41:09,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209833676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:09,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:09,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:41:09,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057747885] [2024-11-08 17:41:09,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:09,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:41:09,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:09,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:41:09,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:41:09,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 217 [2024-11-08 17:41:09,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 199 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 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 17:41:09,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:09,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 217 [2024-11-08 17:41:09,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:10,273 INFO L124 PetriNetUnfolderBase]: 260/1425 cut-off events. [2024-11-08 17:41:10,273 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-08 17:41:10,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 1425 events. 260/1425 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10574 event pairs, 166 based on Foata normal form. 0/1286 useless extension candidates. Maximal degree in co-relation 1893. Up to 387 conditions per place. [2024-11-08 17:41:10,285 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 80 selfloop transitions, 5 changer transitions 0/246 dead transitions. [2024-11-08 17:41:10,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 246 transitions, 679 flow [2024-11-08 17:41:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:41:10,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:41:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1058 transitions. [2024-11-08 17:41:10,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8125960061443932 [2024-11-08 17:41:10,289 INFO L175 Difference]: Start difference. First operand has 201 places, 199 transitions, 415 flow. Second operand 6 states and 1058 transitions. [2024-11-08 17:41:10,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 246 transitions, 679 flow [2024-11-08 17:41:10,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 246 transitions, 675 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:41:10,341 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 419 flow [2024-11-08 17:41:10,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=419, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2024-11-08 17:41:10,343 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 3 predicate places. [2024-11-08 17:41:10,343 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 419 flow [2024-11-08 17:41:10,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 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 17:41:10,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:10,345 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:41:10,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:41:10,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 17:41:10,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1095221619, now seen corresponding path program 1 times [2024-11-08 17:41:10,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:10,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810835833] [2024-11-08 17:41:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:10,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:10,410 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 17:41:10,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:10,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810835833] [2024-11-08 17:41:10,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810835833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:10,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:10,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:41:10,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423968227] [2024-11-08 17:41:10,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:10,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:10,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:10,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 217 [2024-11-08 17:41:10,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 17:41:10,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:10,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 217 [2024-11-08 17:41:10,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:10,825 INFO L124 PetriNetUnfolderBase]: 187/1637 cut-off events. [2024-11-08 17:41:10,826 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 17:41:10,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1637 events. 187/1637 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 12706 event pairs, 12 based on Foata normal form. 0/1452 useless extension candidates. Maximal degree in co-relation 1955. Up to 189 conditions per place. [2024-11-08 17:41:10,839 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 41 selfloop transitions, 3 changer transitions 0/218 dead transitions. [2024-11-08 17:41:10,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 218 transitions, 550 flow [2024-11-08 17:41:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:41:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2024-11-08 17:41:10,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.880184331797235 [2024-11-08 17:41:10,842 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 419 flow. Second operand 3 states and 573 transitions. [2024-11-08 17:41:10,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 218 transitions, 550 flow [2024-11-08 17:41:10,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 540 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:41:10,849 INFO L231 Difference]: Finished difference. Result has 202 places, 200 transitions, 431 flow [2024-11-08 17:41:10,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=202, PETRI_TRANSITIONS=200} [2024-11-08 17:41:10,852 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 2 predicate places. [2024-11-08 17:41:10,852 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 200 transitions, 431 flow [2024-11-08 17:41:10,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 17:41:10,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:10,854 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] [2024-11-08 17:41:10,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:41:10,855 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 17:41:10,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:10,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1881179445, now seen corresponding path program 1 times [2024-11-08 17:41:10,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:10,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897734691] [2024-11-08 17:41:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:10,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:11,051 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 17:41:11,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:11,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897734691] [2024-11-08 17:41:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897734691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:41:11,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064707754] [2024-11-08 17:41:11,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:11,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:41:11,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:41:11,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:41:11,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:41:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:11,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:41:11,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:41:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:41:11,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:41:11,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064707754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:11,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:41:11,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-08 17:41:11,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590136363] [2024-11-08 17:41:11,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:11,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:11,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:11,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:41:11,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 217 [2024-11-08 17:41:11,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 200 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 17:41:11,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:11,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 217 [2024-11-08 17:41:11,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:11,798 INFO L124 PetriNetUnfolderBase]: 308/2202 cut-off events. [2024-11-08 17:41:11,798 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-08 17:41:11,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2872 conditions, 2202 events. 308/2202 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 18311 event pairs, 204 based on Foata normal form. 0/1910 useless extension candidates. Maximal degree in co-relation 2797. Up to 497 conditions per place. [2024-11-08 17:41:11,816 INFO L140 encePairwiseOnDemand]: 212/217 looper letters, 39 selfloop transitions, 5 changer transitions 0/215 dead transitions. [2024-11-08 17:41:11,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 215 transitions, 553 flow [2024-11-08 17:41:11,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:41:11,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-08 17:41:11,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602150537634409 [2024-11-08 17:41:11,819 INFO L175 Difference]: Start difference. First operand has 202 places, 200 transitions, 431 flow. Second operand 3 states and 560 transitions. [2024-11-08 17:41:11,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 215 transitions, 553 flow [2024-11-08 17:41:11,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 215 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:41:11,824 INFO L231 Difference]: Finished difference. Result has 204 places, 203 transitions, 461 flow [2024-11-08 17:41:11,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=461, PETRI_PLACES=204, PETRI_TRANSITIONS=203} [2024-11-08 17:41:11,825 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 4 predicate places. [2024-11-08 17:41:11,826 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 203 transitions, 461 flow [2024-11-08 17:41:11,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 17:41:11,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:11,827 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, 1, 1, 1, 1] [2024-11-08 17:41:11,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:41:12,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:41:12,031 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 17:41:12,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:12,031 INFO L85 PathProgramCache]: Analyzing trace with hash -646128701, now seen corresponding path program 1 times [2024-11-08 17:41:12,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:12,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336231963] [2024-11-08 17:41:12,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:12,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:41:12,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:41:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:41:12,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:41:12,148 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:41:12,150 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-08 17:41:12,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-08 17:41:12,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-08 17:41:12,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-08 17:41:12,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-08 17:41:12,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-08 17:41:12,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-08 17:41:12,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-08 17:41:12,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-08 17:41:12,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-08 17:41:12,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-08 17:41:12,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-08 17:41:12,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-08 17:41:12,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-08 17:41:12,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-08 17:41:12,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-08 17:41:12,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-08 17:41:12,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-08 17:41:12,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-08 17:41:12,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-08 17:41:12,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-08 17:41:12,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-08 17:41:12,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-08 17:41:12,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:41:12,161 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 17:41:12,165 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:41:12,166 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:41:12,254 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:41:12,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 323 transitions, 662 flow [2024-11-08 17:41:12,375 INFO L124 PetriNetUnfolderBase]: 48/494 cut-off events. [2024-11-08 17:41:12,376 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:41:12,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 494 events. 48/494 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2084 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 305. Up to 8 conditions per place. [2024-11-08 17:41:12,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 323 transitions, 662 flow [2024-11-08 17:41:12,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 323 transitions, 662 flow [2024-11-08 17:41:12,399 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:41:12,401 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;@77300f4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:41:12,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-08 17:41:12,408 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:41:12,408 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-08 17:41:12,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:41:12,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:12,409 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] [2024-11-08 17:41:12,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-08 17:41:12,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:12,410 INFO L85 PathProgramCache]: Analyzing trace with hash 849635428, now seen corresponding path program 1 times [2024-11-08 17:41:12,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:12,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150639498] [2024-11-08 17:41:12,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:12,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:12,472 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 17:41:12,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:12,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150639498] [2024-11-08 17:41:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150639498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:12,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:12,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:12,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467205077] [2024-11-08 17:41:12,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:12,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:12,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:12,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:12,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:12,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 323 [2024-11-08 17:41:12,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 323 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 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 17:41:12,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:12,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 323 [2024-11-08 17:41:12,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:16,406 INFO L124 PetriNetUnfolderBase]: 3840/17608 cut-off events. [2024-11-08 17:41:16,406 INFO L125 PetriNetUnfolderBase]: For 282/282 co-relation queries the response was YES. [2024-11-08 17:41:16,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23341 conditions, 17608 events. 3840/17608 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 216081 event pairs, 3267 based on Foata normal form. 2885/18611 useless extension candidates. Maximal degree in co-relation 20004. Up to 5647 conditions per place. [2024-11-08 17:41:16,614 INFO L140 encePairwiseOnDemand]: 291/323 looper letters, 52 selfloop transitions, 2 changer transitions 0/306 dead transitions. [2024-11-08 17:41:16,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 306 transitions, 736 flow [2024-11-08 17:41:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:41:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 855 transitions. [2024-11-08 17:41:16,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2024-11-08 17:41:16,617 INFO L175 Difference]: Start difference. First operand has 294 places, 323 transitions, 662 flow. Second operand 3 states and 855 transitions. [2024-11-08 17:41:16,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 306 transitions, 736 flow [2024-11-08 17:41:16,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 306 transitions, 736 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:41:16,638 INFO L231 Difference]: Finished difference. Result has 295 places, 294 transitions, 616 flow [2024-11-08 17:41:16,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=295, PETRI_TRANSITIONS=294} [2024-11-08 17:41:16,641 INFO L277 CegarLoopForPetriNet]: 294 programPoint places, 1 predicate places. [2024-11-08 17:41:16,643 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 294 transitions, 616 flow [2024-11-08 17:41:16,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 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 17:41:16,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:16,644 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] [2024-11-08 17:41:16,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:41:16,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-08 17:41:16,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:16,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1919897698, now seen corresponding path program 1 times [2024-11-08 17:41:16,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:16,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455812778] [2024-11-08 17:41:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:16,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:17,089 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 17:41:17,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:17,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455812778] [2024-11-08 17:41:17,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455812778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:17,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:17,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:41:17,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838784859] [2024-11-08 17:41:17,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:17,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:41:17,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:41:17,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:41:17,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 323 [2024-11-08 17:41:17,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 294 transitions, 616 flow. Second operand has 6 states, 6 states have (on average 243.5) internal successors, (1461), 6 states have internal predecessors, (1461), 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 17:41:17,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:17,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 323 [2024-11-08 17:41:17,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:22,929 INFO L124 PetriNetUnfolderBase]: 7014/28124 cut-off events. [2024-11-08 17:41:22,929 INFO L125 PetriNetUnfolderBase]: For 341/380 co-relation queries the response was YES. [2024-11-08 17:41:23,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39124 conditions, 28124 events. 7014/28124 cut-off events. For 341/380 co-relation queries the response was YES. Maximal size of possible extension queue 703. Compared 367462 event pairs, 3202 based on Foata normal form. 0/25212 useless extension candidates. Maximal degree in co-relation 35949. Up to 7816 conditions per place. [2024-11-08 17:41:23,257 INFO L140 encePairwiseOnDemand]: 317/323 looper letters, 142 selfloop transitions, 6 changer transitions 0/389 dead transitions. [2024-11-08 17:41:23,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 389 transitions, 1102 flow [2024-11-08 17:41:23,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:41:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:41:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1600 transitions. [2024-11-08 17:41:23,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8255933952528379 [2024-11-08 17:41:23,263 INFO L175 Difference]: Start difference. First operand has 295 places, 294 transitions, 616 flow. Second operand 6 states and 1600 transitions. [2024-11-08 17:41:23,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 389 transitions, 1102 flow [2024-11-08 17:41:23,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 389 transitions, 1100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:41:23,273 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 624 flow [2024-11-08 17:41:23,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=624, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-11-08 17:41:23,275 INFO L277 CegarLoopForPetriNet]: 294 programPoint places, 4 predicate places. [2024-11-08 17:41:23,275 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 624 flow [2024-11-08 17:41:23,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.5) internal successors, (1461), 6 states have internal predecessors, (1461), 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 17:41:23,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:23,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:41:23,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:41:23,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-08 17:41:23,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:23,278 INFO L85 PathProgramCache]: Analyzing trace with hash -256888898, now seen corresponding path program 1 times [2024-11-08 17:41:23,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:23,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666749266] [2024-11-08 17:41:23,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:23,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:23,333 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 17:41:23,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:23,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666749266] [2024-11-08 17:41:23,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666749266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:23,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:23,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:41:23,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291640745] [2024-11-08 17:41:23,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:23,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:23,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:23,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:23,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:23,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 323 [2024-11-08 17:41:23,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 17:41:23,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:23,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 323 [2024-11-08 17:41:23,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:28,579 INFO L124 PetriNetUnfolderBase]: 6506/31560 cut-off events. [2024-11-08 17:41:28,579 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2024-11-08 17:41:28,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41520 conditions, 31560 events. 6506/31560 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 756. Compared 433522 event pairs, 2376 based on Foata normal form. 0/27952 useless extension candidates. Maximal degree in co-relation 32500. Up to 5556 conditions per place. [2024-11-08 17:41:28,866 INFO L140 encePairwiseOnDemand]: 316/323 looper letters, 74 selfloop transitions, 5 changer transitions 0/331 dead transitions. [2024-11-08 17:41:28,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 331 transitions, 869 flow [2024-11-08 17:41:28,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:41:28,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2024-11-08 17:41:28,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8668730650154799 [2024-11-08 17:41:28,875 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 624 flow. Second operand 3 states and 840 transitions. [2024-11-08 17:41:28,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 331 transitions, 869 flow [2024-11-08 17:41:28,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 331 transitions, 857 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:41:28,888 INFO L231 Difference]: Finished difference. Result has 297 places, 298 transitions, 656 flow [2024-11-08 17:41:28,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=297, PETRI_TRANSITIONS=298} [2024-11-08 17:41:28,891 INFO L277 CegarLoopForPetriNet]: 294 programPoint places, 3 predicate places. [2024-11-08 17:41:28,892 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 298 transitions, 656 flow [2024-11-08 17:41:28,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 17:41:28,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:28,893 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] [2024-11-08 17:41:28,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:41:28,894 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-08 17:41:28,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:28,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1764208205, now seen corresponding path program 1 times [2024-11-08 17:41:28,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:28,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019574260] [2024-11-08 17:41:28,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:28,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:29,016 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 17:41:29,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:29,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019574260] [2024-11-08 17:41:29,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019574260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:41:29,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492100919] [2024-11-08 17:41:29,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:29,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:41:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:41:29,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:41:29,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:41:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:29,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:41:29,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:41:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:41:29,174 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:41:29,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492100919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:29,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:41:29,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-08 17:41:29,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522979934] [2024-11-08 17:41:29,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:29,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:29,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:29,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:29,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:41:29,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 323 [2024-11-08 17:41:29,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 298 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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 17:41:29,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:29,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 323 [2024-11-08 17:41:29,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:35,763 INFO L124 PetriNetUnfolderBase]: 10028/42636 cut-off events. [2024-11-08 17:41:35,763 INFO L125 PetriNetUnfolderBase]: For 2189/2218 co-relation queries the response was YES. [2024-11-08 17:41:35,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59850 conditions, 42636 events. 10028/42636 cut-off events. For 2189/2218 co-relation queries the response was YES. Maximal size of possible extension queue 1090. Compared 599522 event pairs, 7040 based on Foata normal form. 24/37616 useless extension candidates. Maximal degree in co-relation 56889. Up to 12782 conditions per place. [2024-11-08 17:41:36,176 INFO L140 encePairwiseOnDemand]: 317/323 looper letters, 68 selfloop transitions, 8 changer transitions 0/328 dead transitions. [2024-11-08 17:41:36,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 328 transitions, 880 flow [2024-11-08 17:41:36,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:36,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:41:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2024-11-08 17:41:36,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8513931888544891 [2024-11-08 17:41:36,181 INFO L175 Difference]: Start difference. First operand has 297 places, 298 transitions, 656 flow. Second operand 3 states and 825 transitions. [2024-11-08 17:41:36,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 328 transitions, 880 flow [2024-11-08 17:41:36,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 328 transitions, 866 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:41:36,199 INFO L231 Difference]: Finished difference. Result has 299 places, 304 transitions, 712 flow [2024-11-08 17:41:36,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=299, PETRI_TRANSITIONS=304} [2024-11-08 17:41:36,200 INFO L277 CegarLoopForPetriNet]: 294 programPoint places, 5 predicate places. [2024-11-08 17:41:36,201 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 304 transitions, 712 flow [2024-11-08 17:41:36,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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 17:41:36,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:36,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:41:36,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:41:36,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:41:36,408 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-08 17:41:36,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2086623232, now seen corresponding path program 1 times [2024-11-08 17:41:36,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:36,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331714214] [2024-11-08 17:41:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:36,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:36,566 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 17:41:36,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:36,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331714214] [2024-11-08 17:41:36,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331714214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:41:36,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380257478] [2024-11-08 17:41:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:36,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:41:36,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:41:36,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:41:36,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:41:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:36,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:41:36,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:41:36,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 17:41:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:41:36,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:41:36,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380257478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:36,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:41:36,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-08 17:41:36,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401172272] [2024-11-08 17:41:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:36,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:36,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:36,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:36,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:41:36,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 323 [2024-11-08 17:41:36,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 304 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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 17:41:36,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:36,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 323 [2024-11-08 17:41:36,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:41:40,062 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1017] L906-->L906-3: Formula: (and (= (store |v_#pthreadsMutex_138| |v_~#fm~0.base_25| (store (select |v_#pthreadsMutex_138| |v_~#fm~0.base_25|) |v_~#fm~0.offset_25| 0)) |v_#pthreadsMutex_137|) (= |v_t_funThread2of2ForFork0_#t~ret23#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_138|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_137|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|, t_funThread2of2ForFork0_#t~ret23#1=|v_t_funThread2of2ForFork0_#t~ret23#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, t_funThread2of2ForFork0_#t~ret23#1][261], [289#L916-12true, 485#true, Black: 482#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet29#1|), Black: 307#true, 157#L906-3true, 312#true, 198#L893-35true, Black: 299#(= |ULTIMATE.start_main_~i~0#1| 0), 295#true, 293#true]) [2024-11-08 17:41:40,062 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is cut-off event [2024-11-08 17:41:40,062 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is cut-off event [2024-11-08 17:41:40,062 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is cut-off event [2024-11-08 17:41:40,063 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is cut-off event [2024-11-08 17:41:40,170 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1017] L906-->L906-3: Formula: (and (= (store |v_#pthreadsMutex_138| |v_~#fm~0.base_25| (store (select |v_#pthreadsMutex_138| |v_~#fm~0.base_25|) |v_~#fm~0.offset_25| 0)) |v_#pthreadsMutex_137|) (= |v_t_funThread2of2ForFork0_#t~ret23#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_138|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_137|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|, t_funThread2of2ForFork0_#t~ret23#1=|v_t_funThread2of2ForFork0_#t~ret23#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, t_funThread2of2ForFork0_#t~ret23#1][261], [177#L897-35true, 289#L916-12true, 485#true, Black: 482#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet29#1|), Black: 307#true, 157#L906-3true, 312#true, Black: 299#(= |ULTIMATE.start_main_~i~0#1| 0), 295#true, 293#true]) [2024-11-08 17:41:40,171 INFO L294 olderBase$Statistics]: this new event has 136 ancestors and is cut-off event [2024-11-08 17:41:40,171 INFO L297 olderBase$Statistics]: existing Event has 136 ancestors and is cut-off event [2024-11-08 17:41:40,171 INFO L297 olderBase$Statistics]: existing Event has 136 ancestors and is cut-off event [2024-11-08 17:41:40,171 INFO L297 olderBase$Statistics]: existing Event has 136 ancestors and is cut-off event [2024-11-08 17:41:40,244 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1017] L906-->L906-3: Formula: (and (= (store |v_#pthreadsMutex_138| |v_~#fm~0.base_25| (store (select |v_#pthreadsMutex_138| |v_~#fm~0.base_25|) |v_~#fm~0.offset_25| 0)) |v_#pthreadsMutex_137|) (= |v_t_funThread2of2ForFork0_#t~ret23#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_138|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_137|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|, t_funThread2of2ForFork0_#t~ret23#1=|v_t_funThread2of2ForFork0_#t~ret23#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, t_funThread2of2ForFork0_#t~ret23#1][261], [485#true, Black: 482#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet29#1|), Black: 307#true, 157#L906-3true, 312#true, 13#L917-2true, 198#L893-35true, Black: 299#(= |ULTIMATE.start_main_~i~0#1| 0), 295#true, 293#true]) [2024-11-08 17:41:40,244 INFO L294 olderBase$Statistics]: this new event has 137 ancestors and is cut-off event [2024-11-08 17:41:40,244 INFO L297 olderBase$Statistics]: existing Event has 137 ancestors and is cut-off event [2024-11-08 17:41:40,244 INFO L297 olderBase$Statistics]: existing Event has 137 ancestors and is cut-off event [2024-11-08 17:41:40,244 INFO L297 olderBase$Statistics]: existing Event has 137 ancestors and is cut-off event [2024-11-08 17:41:40,336 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1017] L906-->L906-3: Formula: (and (= (store |v_#pthreadsMutex_138| |v_~#fm~0.base_25| (store (select |v_#pthreadsMutex_138| |v_~#fm~0.base_25|) |v_~#fm~0.offset_25| 0)) |v_#pthreadsMutex_137|) (= |v_t_funThread2of2ForFork0_#t~ret23#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_138|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_137|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|, t_funThread2of2ForFork0_#t~ret23#1=|v_t_funThread2of2ForFork0_#t~ret23#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, t_funThread2of2ForFork0_#t~ret23#1][261], [177#L897-35true, 485#true, Black: 482#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet29#1|), Black: 307#true, 157#L906-3true, 312#true, 13#L917-2true, Black: 299#(= |ULTIMATE.start_main_~i~0#1| 0), 295#true, 293#true]) [2024-11-08 17:41:40,336 INFO L294 olderBase$Statistics]: this new event has 139 ancestors and is cut-off event [2024-11-08 17:41:40,337 INFO L297 olderBase$Statistics]: existing Event has 139 ancestors and is cut-off event [2024-11-08 17:41:40,337 INFO L297 olderBase$Statistics]: existing Event has 139 ancestors and is cut-off event [2024-11-08 17:41:40,337 INFO L297 olderBase$Statistics]: existing Event has 139 ancestors and is cut-off event [2024-11-08 17:41:41,338 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1017] L906-->L906-3: Formula: (and (= (store |v_#pthreadsMutex_138| |v_~#fm~0.base_25| (store (select |v_#pthreadsMutex_138| |v_~#fm~0.base_25|) |v_~#fm~0.offset_25| 0)) |v_#pthreadsMutex_137|) (= |v_t_funThread2of2ForFork0_#t~ret23#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_138|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_137|, ~#fm~0.base=|v_~#fm~0.base_25|, ~#fm~0.offset=|v_~#fm~0.offset_25|, t_funThread2of2ForFork0_#t~ret23#1=|v_t_funThread2of2ForFork0_#t~ret23#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, t_funThread2of2ForFork0_#t~ret23#1][261], [485#true, Black: 482#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet29#1|), 292#true, Black: 307#true, 157#L906-3true, 76#L918-11true, 312#true, Black: 299#(= |ULTIMATE.start_main_~i~0#1| 0), 295#true]) [2024-11-08 17:41:41,338 INFO L294 olderBase$Statistics]: this new event has 155 ancestors and is cut-off event [2024-11-08 17:41:41,338 INFO L297 olderBase$Statistics]: existing Event has 155 ancestors and is cut-off event [2024-11-08 17:41:41,338 INFO L297 olderBase$Statistics]: existing Event has 155 ancestors and is cut-off event [2024-11-08 17:41:41,339 INFO L297 olderBase$Statistics]: existing Event has 155 ancestors and is cut-off event [2024-11-08 17:41:41,929 INFO L124 PetriNetUnfolderBase]: 5275/29685 cut-off events. [2024-11-08 17:41:41,929 INFO L125 PetriNetUnfolderBase]: For 1177/1225 co-relation queries the response was YES. [2024-11-08 17:41:42,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39823 conditions, 29685 events. 5275/29685 cut-off events. For 1177/1225 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 420821 event pairs, 3007 based on Foata normal form. 68/27105 useless extension candidates. Maximal degree in co-relation 37948. Up to 7081 conditions per place. [2024-11-08 17:41:42,232 INFO L140 encePairwiseOnDemand]: 305/323 looper letters, 47 selfloop transitions, 18 changer transitions 0/332 dead transitions. [2024-11-08 17:41:42,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 332 transitions, 897 flow [2024-11-08 17:41:42,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:41:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 845 transitions. [2024-11-08 17:41:42,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8720330237358102 [2024-11-08 17:41:42,237 INFO L175 Difference]: Start difference. First operand has 299 places, 304 transitions, 712 flow. Second operand 3 states and 845 transitions. [2024-11-08 17:41:42,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 332 transitions, 897 flow [2024-11-08 17:41:42,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 332 transitions, 885 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:41:42,255 INFO L231 Difference]: Finished difference. Result has 300 places, 317 transitions, 798 flow [2024-11-08 17:41:42,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=300, PETRI_TRANSITIONS=317} [2024-11-08 17:41:42,256 INFO L277 CegarLoopForPetriNet]: 294 programPoint places, 6 predicate places. [2024-11-08 17:41:42,257 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 317 transitions, 798 flow [2024-11-08 17:41:42,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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 17:41:42,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:41:42,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:41:42,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:41:42,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321758ad-b748-4b3a-9abf-ff06d813aa38/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:41:42,464 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-08 17:41:42,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:42,465 INFO L85 PathProgramCache]: Analyzing trace with hash 96056833, now seen corresponding path program 1 times [2024-11-08 17:41:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523865167] [2024-11-08 17:41:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:42,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:42,548 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 17:41:42,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:42,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523865167] [2024-11-08 17:41:42,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523865167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:42,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:42,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:41:42,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784973218] [2024-11-08 17:41:42,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:42,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:42,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:42,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:42,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 323 [2024-11-08 17:41:42,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 317 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 17:41:42,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:41:42,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 323 [2024-11-08 17:41:42,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:05,017 INFO L124 PetriNetUnfolderBase]: 40115/136846 cut-off events. [2024-11-08 17:42:05,018 INFO L125 PetriNetUnfolderBase]: For 23535/24194 co-relation queries the response was YES. [2024-11-08 17:42:05,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228058 conditions, 136846 events. 40115/136846 cut-off events. For 23535/24194 co-relation queries the response was YES. Maximal size of possible extension queue 3508. Compared 2119351 event pairs, 13598 based on Foata normal form. 24/122879 useless extension candidates. Maximal degree in co-relation 223383. Up to 32979 conditions per place. [2024-11-08 17:42:06,025 INFO L140 encePairwiseOnDemand]: 288/323 looper letters, 132 selfloop transitions, 26 changer transitions 0/391 dead transitions. [2024-11-08 17:42:06,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 391 transitions, 1357 flow [2024-11-08 17:42:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:06,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:42:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2024-11-08 17:42:06,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8379772961816305 [2024-11-08 17:42:06,030 INFO L175 Difference]: Start difference. First operand has 300 places, 317 transitions, 798 flow. Second operand 3 states and 812 transitions. [2024-11-08 17:42:06,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 391 transitions, 1357 flow [2024-11-08 17:42:06,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 391 transitions, 1321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:42:06,085 INFO L231 Difference]: Finished difference. Result has 303 places, 343 transitions, 1006 flow [2024-11-08 17:42:06,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1006, PETRI_PLACES=303, PETRI_TRANSITIONS=343} [2024-11-08 17:42:06,087 INFO L277 CegarLoopForPetriNet]: 294 programPoint places, 9 predicate places. [2024-11-08 17:42:06,087 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 343 transitions, 1006 flow [2024-11-08 17:42:06,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 17:42:06,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:06,088 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:06,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:42:06,088 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-08 17:42:06,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:06,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1902976766, now seen corresponding path program 1 times [2024-11-08 17:42:06,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:06,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133487440] [2024-11-08 17:42:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:06,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:06,148 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 17:42:06,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:06,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133487440] [2024-11-08 17:42:06,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133487440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:06,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:06,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:42:06,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634499316] [2024-11-08 17:42:06,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:06,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:06,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:06,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:06,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 323 [2024-11-08 17:42:06,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 343 transitions, 1006 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:06,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:06,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 323 [2024-11-08 17:42:06,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand