./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx --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 534bdd637f5e5b671357d3ac8ec1b617321ae1d1d7a44132336275a64f61ed0f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:17,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:17,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:11:17,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:17,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:17,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:17,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:17,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:17,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:17,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:17,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:17,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:17,693 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:17,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:17,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:11:17,695 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:17,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:17,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:17,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:17,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:11:17,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:17,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:11:17,700 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:11:17,701 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:11:17,701 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:17,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:11:17,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:17,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:17,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:17,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:17,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:17,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:17,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:17,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:11:17,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:11:17,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:11:17,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:17,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:17,708 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:11:17,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:17,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:17,710 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_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 534bdd637f5e5b671357d3ac8ec1b617321ae1d1d7a44132336275a64f61ed0f [2023-11-21 22:11:18,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:18,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:18,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:18,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:18,055 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:18,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race-2.i [2023-11-21 22:11:21,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:21,486 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:21,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race-2.i [2023-11-21 22:11:21,505 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/data/4d6b4dedb/88405ef3d94742789a5611828eeef11d/FLAGb0f79cab2 [2023-11-21 22:11:21,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/data/4d6b4dedb/88405ef3d94742789a5611828eeef11d [2023-11-21 22:11:21,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:21,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:21,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:21,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:21,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:21,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:21" (1/1) ... [2023-11-21 22:11:21,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580a1572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:21, skipping insertion in model container [2023-11-21 22:11:21,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:21" (1/1) ... [2023-11-21 22:11:21,643 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:21,864 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:11:22,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:22,269 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:22,284 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:11:22,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:22,420 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:22,428 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:22,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22 WrapperNode [2023-11-21 22:11:22,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:22,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:22,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:22,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:22,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,500 INFO L138 Inliner]: procedures = 272, calls = 71, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2023-11-21 22:11:22,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:22,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:22,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:22,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:22,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:22,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:22,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:22,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:22,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (1/1) ... [2023-11-21 22:11:22,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:22,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:22,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:22,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458bcfe4-51ae-4c7f-979e-17ae9553f78c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:11:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:11:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:11:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:11:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:11:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:11:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:11:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:11:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure cleaner [2023-11-21 22:11:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cleaner [2023-11-21 22:11:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:11:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-21 22:11:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-21 22:11:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:22,676 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:11:22,848 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:22,851 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:23,586 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:23,636 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:23,636 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 22:11:23,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:23 BoogieIcfgContainer [2023-11-21 22:11:23,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:23,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:23,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:23,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:23,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:21" (1/3) ... [2023-11-21 22:11:23,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b656860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:23, skipping insertion in model container [2023-11-21 22:11:23,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:22" (2/3) ... [2023-11-21 22:11:23,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b656860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:23, skipping insertion in model container [2023-11-21 22:11:23,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:23" (3/3) ... [2023-11-21 22:11:23,648 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-join-counter-race-2.i [2023-11-21 22:11:23,657 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:11:23,668 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:23,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-11-21 22:11:23,669 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:11:23,776 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:11:23,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 416 places, 425 transitions, 864 flow [2023-11-21 22:11:24,123 INFO L124 PetriNetUnfolderBase]: 21/565 cut-off events. [2023-11-21 22:11:24,123 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:11:24,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 565 events. 21/565 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1271 event pairs, 0 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 445. Up to 6 conditions per place. [2023-11-21 22:11:24,143 INFO L82 GeneralOperation]: Start removeDead. Operand has 416 places, 425 transitions, 864 flow [2023-11-21 22:11:24,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 336 transitions, 682 flow [2023-11-21 22:11:24,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:24,186 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@3ef01b1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:24,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2023-11-21 22:11:24,207 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:11:24,207 INFO L124 PetriNetUnfolderBase]: 0/45 cut-off events. [2023-11-21 22:11:24,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:24,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:24,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:24,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:24,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:24,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1195398775, now seen corresponding path program 1 times [2023-11-21 22:11:24,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:24,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326282189] [2023-11-21 22:11:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:24,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:24,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:24,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326282189] [2023-11-21 22:11:24,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326282189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:24,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:24,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840853050] [2023-11-21 22:11:24,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:24,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:24,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:24,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 425 [2023-11-21 22:11:24,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 336 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:24,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:24,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 425 [2023-11-21 22:11:24,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:26,442 INFO L124 PetriNetUnfolderBase]: 630/5170 cut-off events. [2023-11-21 22:11:26,442 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-21 22:11:26,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6182 conditions, 5170 events. 630/5170 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 43498 event pairs, 497 based on Foata normal form. 168/4661 useless extension candidates. Maximal degree in co-relation 6042. Up to 982 conditions per place. [2023-11-21 22:11:26,502 INFO L140 encePairwiseOnDemand]: 415/425 looper letters, 28 selfloop transitions, 2 changer transitions 1/326 dead transitions. [2023-11-21 22:11:26,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 326 transitions, 722 flow [2023-11-21 22:11:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1172 transitions. [2023-11-21 22:11:26,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9192156862745098 [2023-11-21 22:11:26,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1172 transitions. [2023-11-21 22:11:26,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1172 transitions. [2023-11-21 22:11:26,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:26,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1172 transitions. [2023-11-21 22:11:26,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.6666666666667) internal successors, (1172), 3 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,546 INFO L175 Difference]: Start difference. First operand has 331 places, 336 transitions, 682 flow. Second operand 3 states and 1172 transitions. [2023-11-21 22:11:26,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 326 transitions, 722 flow [2023-11-21 22:11:26,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 326 transitions, 721 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:11:26,561 INFO L231 Difference]: Finished difference. Result has 328 places, 325 transitions, 663 flow [2023-11-21 22:11:26,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=663, PETRI_PLACES=328, PETRI_TRANSITIONS=325} [2023-11-21 22:11:26,568 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -3 predicate places. [2023-11-21 22:11:26,568 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 325 transitions, 663 flow [2023-11-21 22:11:26,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:26,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:26,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:26,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:26,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:26,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1794805873, now seen corresponding path program 1 times [2023-11-21 22:11:26,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:26,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731383686] [2023-11-21 22:11:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:26,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:26,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:26,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731383686] [2023-11-21 22:11:26,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731383686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:26,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:26,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:26,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280358365] [2023-11-21 22:11:26,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:26,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:26,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:26,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:26,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:26,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 425 [2023-11-21 22:11:26,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 325 transitions, 663 flow. Second operand has 3 states, 3 states have (on average 369.0) internal successors, (1107), 3 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:26,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 425 [2023-11-21 22:11:26,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:28,146 INFO L124 PetriNetUnfolderBase]: 718/5720 cut-off events. [2023-11-21 22:11:28,146 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-21 22:11:28,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6878 conditions, 5720 events. 718/5720 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 49705 event pairs, 582 based on Foata normal form. 0/5016 useless extension candidates. Maximal degree in co-relation 6823. Up to 1124 conditions per place. [2023-11-21 22:11:28,208 INFO L140 encePairwiseOnDemand]: 417/425 looper letters, 31 selfloop transitions, 1 changer transitions 0/318 dead transitions. [2023-11-21 22:11:28,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 318 transitions, 713 flow [2023-11-21 22:11:28,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:28,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:28,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1143 transitions. [2023-11-21 22:11:28,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8964705882352941 [2023-11-21 22:11:28,213 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1143 transitions. [2023-11-21 22:11:28,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1143 transitions. [2023-11-21 22:11:28,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:28,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1143 transitions. [2023-11-21 22:11:28,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,224 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,224 INFO L175 Difference]: Start difference. First operand has 328 places, 325 transitions, 663 flow. Second operand 3 states and 1143 transitions. [2023-11-21 22:11:28,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 318 transitions, 713 flow [2023-11-21 22:11:28,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 318 transitions, 709 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:28,237 INFO L231 Difference]: Finished difference. Result has 320 places, 318 transitions, 647 flow [2023-11-21 22:11:28,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=647, PETRI_PLACES=320, PETRI_TRANSITIONS=318} [2023-11-21 22:11:28,239 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -11 predicate places. [2023-11-21 22:11:28,239 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 318 transitions, 647 flow [2023-11-21 22:11:28,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.0) internal successors, (1107), 3 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:28,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:28,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:11:28,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:28,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:28,248 INFO L85 PathProgramCache]: Analyzing trace with hash -311942988, now seen corresponding path program 1 times [2023-11-21 22:11:28,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:28,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383276723] [2023-11-21 22:11:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:28,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:29,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:29,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383276723] [2023-11-21 22:11:29,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383276723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:29,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:29,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84782842] [2023-11-21 22:11:29,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:29,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:29,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:29,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:29,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:29,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 425 [2023-11-21 22:11:29,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 318 transitions, 647 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:29,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 425 [2023-11-21 22:11:29,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:36,689 INFO L124 PetriNetUnfolderBase]: 12453/33771 cut-off events. [2023-11-21 22:11:36,689 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2023-11-21 22:11:36,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52968 conditions, 33771 events. 12453/33771 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 362324 event pairs, 11729 based on Foata normal form. 0/30528 useless extension candidates. Maximal degree in co-relation 52912. Up to 19118 conditions per place. [2023-11-21 22:11:36,972 INFO L140 encePairwiseOnDemand]: 419/425 looper letters, 68 selfloop transitions, 5 changer transitions 0/317 dead transitions. [2023-11-21 22:11:36,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 317 transitions, 791 flow [2023-11-21 22:11:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1976 transitions. [2023-11-21 22:11:36,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7749019607843137 [2023-11-21 22:11:36,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1976 transitions. [2023-11-21 22:11:36,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1976 transitions. [2023-11-21 22:11:36,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:36,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1976 transitions. [2023-11-21 22:11:36,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,997 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,998 INFO L175 Difference]: Start difference. First operand has 320 places, 318 transitions, 647 flow. Second operand 6 states and 1976 transitions. [2023-11-21 22:11:36,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 317 transitions, 791 flow [2023-11-21 22:11:37,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 317 transitions, 790 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:11:37,010 INFO L231 Difference]: Finished difference. Result has 323 places, 317 transitions, 654 flow [2023-11-21 22:11:37,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=654, PETRI_PLACES=323, PETRI_TRANSITIONS=317} [2023-11-21 22:11:37,012 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -8 predicate places. [2023-11-21 22:11:37,012 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 317 transitions, 654 flow [2023-11-21 22:11:37,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:37,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:37,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:37,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:37,015 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:37,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:37,016 INFO L85 PathProgramCache]: Analyzing trace with hash -526160817, now seen corresponding path program 1 times [2023-11-21 22:11:37,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:37,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282251032] [2023-11-21 22:11:37,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:37,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:37,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282251032] [2023-11-21 22:11:37,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282251032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:37,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:37,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:37,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964112498] [2023-11-21 22:11:37,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:37,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:37,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:37,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:37,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:37,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 425 [2023-11-21 22:11:37,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 317 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:37,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:37,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 425 [2023-11-21 22:11:37,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:38,072 INFO L124 PetriNetUnfolderBase]: 798/5220 cut-off events. [2023-11-21 22:11:38,073 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-21 22:11:38,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6484 conditions, 5220 events. 798/5220 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 43917 event pairs, 617 based on Foata normal form. 0/4620 useless extension candidates. Maximal degree in co-relation 6429. Up to 1221 conditions per place. [2023-11-21 22:11:38,115 INFO L140 encePairwiseOnDemand]: 422/425 looper letters, 24 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2023-11-21 22:11:38,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 316 transitions, 704 flow [2023-11-21 22:11:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:38,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1170 transitions. [2023-11-21 22:11:38,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9176470588235294 [2023-11-21 22:11:38,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1170 transitions. [2023-11-21 22:11:38,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1170 transitions. [2023-11-21 22:11:38,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:38,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1170 transitions. [2023-11-21 22:11:38,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:38,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:38,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:38,134 INFO L175 Difference]: Start difference. First operand has 323 places, 317 transitions, 654 flow. Second operand 3 states and 1170 transitions. [2023-11-21 22:11:38,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 316 transitions, 704 flow [2023-11-21 22:11:38,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 316 transitions, 694 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:11:38,142 INFO L231 Difference]: Finished difference. Result has 319 places, 316 transitions, 646 flow [2023-11-21 22:11:38,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=319, PETRI_TRANSITIONS=316} [2023-11-21 22:11:38,145 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -12 predicate places. [2023-11-21 22:11:38,146 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 316 transitions, 646 flow [2023-11-21 22:11:38,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:38,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:38,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:38,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:11:38,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:38,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:38,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1515164163, now seen corresponding path program 1 times [2023-11-21 22:11:38,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:38,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127726073] [2023-11-21 22:11:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:38,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:39,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:39,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127726073] [2023-11-21 22:11:39,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127726073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:39,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:39,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:39,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943574753] [2023-11-21 22:11:39,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:39,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:39,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:39,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:39,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:39,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 425 [2023-11-21 22:11:39,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 316 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:39,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:39,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 425 [2023-11-21 22:11:39,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:45,547 INFO L124 PetriNetUnfolderBase]: 13352/33498 cut-off events. [2023-11-21 22:11:45,547 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-21 22:11:45,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53931 conditions, 33498 events. 13352/33498 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 793. Compared 346994 event pairs, 12369 based on Foata normal form. 0/31163 useless extension candidates. Maximal degree in co-relation 53875. Up to 20352 conditions per place. [2023-11-21 22:11:45,825 INFO L140 encePairwiseOnDemand]: 419/425 looper letters, 70 selfloop transitions, 5 changer transitions 0/315 dead transitions. [2023-11-21 22:11:45,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 315 transitions, 794 flow [2023-11-21 22:11:45,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1960 transitions. [2023-11-21 22:11:45,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7686274509803922 [2023-11-21 22:11:45,839 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1960 transitions. [2023-11-21 22:11:45,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1960 transitions. [2023-11-21 22:11:45,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:45,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1960 transitions. [2023-11-21 22:11:45,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 326.6666666666667) internal successors, (1960), 6 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,859 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,860 INFO L175 Difference]: Start difference. First operand has 319 places, 316 transitions, 646 flow. Second operand 6 states and 1960 transitions. [2023-11-21 22:11:45,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 315 transitions, 794 flow [2023-11-21 22:11:45,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 315 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:45,870 INFO L231 Difference]: Finished difference. Result has 321 places, 315 transitions, 650 flow [2023-11-21 22:11:45,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=321, PETRI_TRANSITIONS=315} [2023-11-21 22:11:45,874 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -10 predicate places. [2023-11-21 22:11:45,874 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 315 transitions, 650 flow [2023-11-21 22:11:45,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:45,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:45,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:45,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:45,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1702871076, now seen corresponding path program 1 times [2023-11-21 22:11:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:45,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372184344] [2023-11-21 22:11:45,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:45,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:46,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:46,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372184344] [2023-11-21 22:11:46,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372184344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:46,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:46,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:46,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103511321] [2023-11-21 22:11:46,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:46,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:47,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 425 [2023-11-21 22:11:47,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 315 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 340.5) internal successors, (2043), 6 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:47,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 425 [2023-11-21 22:11:47,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:50,981 INFO L124 PetriNetUnfolderBase]: 5907/18537 cut-off events. [2023-11-21 22:11:50,982 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2023-11-21 22:11:51,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27800 conditions, 18537 events. 5907/18537 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 182401 event pairs, 1318 based on Foata normal form. 0/16918 useless extension candidates. Maximal degree in co-relation 27745. Up to 5787 conditions per place. [2023-11-21 22:11:51,106 INFO L140 encePairwiseOnDemand]: 394/425 looper letters, 179 selfloop transitions, 44 changer transitions 0/479 dead transitions. [2023-11-21 22:11:51,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 479 transitions, 1438 flow [2023-11-21 22:11:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2256 transitions. [2023-11-21 22:11:51,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8847058823529412 [2023-11-21 22:11:51,115 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2256 transitions. [2023-11-21 22:11:51,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2256 transitions. [2023-11-21 22:11:51,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:51,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2256 transitions. [2023-11-21 22:11:51,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:51,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:51,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:51,133 INFO L175 Difference]: Start difference. First operand has 321 places, 315 transitions, 650 flow. Second operand 6 states and 2256 transitions. [2023-11-21 22:11:51,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 479 transitions, 1438 flow [2023-11-21 22:11:51,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 479 transitions, 1428 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:11:51,146 INFO L231 Difference]: Finished difference. Result has 325 places, 358 transitions, 962 flow [2023-11-21 22:11:51,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=325, PETRI_TRANSITIONS=358} [2023-11-21 22:11:51,147 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -6 predicate places. [2023-11-21 22:11:51,147 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 358 transitions, 962 flow [2023-11-21 22:11:51,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.5) internal successors, (2043), 6 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:51,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:51,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:51,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:11:51,150 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:51,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:51,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1230756068, now seen corresponding path program 1 times [2023-11-21 22:11:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:51,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113122739] [2023-11-21 22:11:51,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:51,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:51,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:51,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113122739] [2023-11-21 22:11:51,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113122739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:51,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:51,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:51,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083036195] [2023-11-21 22:11:51,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:51,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:51,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:51,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:51,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:51,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 425 [2023-11-21 22:11:51,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 358 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:51,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:51,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 425 [2023-11-21 22:11:51,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:54,767 INFO L124 PetriNetUnfolderBase]: 4125/23116 cut-off events. [2023-11-21 22:11:54,767 INFO L125 PetriNetUnfolderBase]: For 1000/1260 co-relation queries the response was YES. [2023-11-21 22:11:54,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34598 conditions, 23116 events. 4125/23116 cut-off events. For 1000/1260 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 256787 event pairs, 1110 based on Foata normal form. 0/20099 useless extension candidates. Maximal degree in co-relation 34540. Up to 2263 conditions per place. [2023-11-21 22:11:54,948 INFO L140 encePairwiseOnDemand]: 414/425 looper letters, 44 selfloop transitions, 8 changer transitions 0/382 dead transitions. [2023-11-21 22:11:54,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 382 transitions, 1120 flow [2023-11-21 22:11:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-21 22:11:54,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9325490196078431 [2023-11-21 22:11:54,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-21 22:11:54,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-21 22:11:54,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:54,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-21 22:11:54,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,962 INFO L175 Difference]: Start difference. First operand has 325 places, 358 transitions, 962 flow. Second operand 3 states and 1189 transitions. [2023-11-21 22:11:54,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 382 transitions, 1120 flow [2023-11-21 22:11:54,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 382 transitions, 1120 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:11:54,975 INFO L231 Difference]: Finished difference. Result has 329 places, 366 transitions, 1032 flow [2023-11-21 22:11:54,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1032, PETRI_PLACES=329, PETRI_TRANSITIONS=366} [2023-11-21 22:11:54,977 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -2 predicate places. [2023-11-21 22:11:54,977 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 366 transitions, 1032 flow [2023-11-21 22:11:54,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:54,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:54,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:11:54,979 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:11:54,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:54,979 INFO L85 PathProgramCache]: Analyzing trace with hash -863738136, now seen corresponding path program 1 times [2023-11-21 22:11:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:54,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268473989] [2023-11-21 22:11:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:54,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:55,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268473989] [2023-11-21 22:11:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268473989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:55,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:55,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031465060] [2023-11-21 22:11:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:55,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:55,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:55,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 425 [2023-11-21 22:11:55,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 366 transitions, 1032 flow. Second operand has 5 states, 5 states have (on average 382.8) internal successors, (1914), 5 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:55,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:55,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 425 [2023-11-21 22:11:55,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:00,013 INFO L124 PetriNetUnfolderBase]: 3837/26127 cut-off events. [2023-11-21 22:12:00,014 INFO L125 PetriNetUnfolderBase]: For 1628/2023 co-relation queries the response was YES. [2023-11-21 22:12:00,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40103 conditions, 26127 events. 3837/26127 cut-off events. For 1628/2023 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 311398 event pairs, 1641 based on Foata normal form. 3/23294 useless extension candidates. Maximal degree in co-relation 40040. Up to 2749 conditions per place. [2023-11-21 22:12:00,213 INFO L140 encePairwiseOnDemand]: 416/425 looper letters, 36 selfloop transitions, 8 changer transitions 0/381 dead transitions. [2023-11-21 22:12:00,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 381 transitions, 1152 flow [2023-11-21 22:12:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:12:00,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:12:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2331 transitions. [2023-11-21 22:12:00,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9141176470588235 [2023-11-21 22:12:00,221 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2331 transitions. [2023-11-21 22:12:00,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2331 transitions. [2023-11-21 22:12:00,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:00,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2331 transitions. [2023-11-21 22:12:00,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 388.5) internal successors, (2331), 6 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,237 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,238 INFO L175 Difference]: Start difference. First operand has 329 places, 366 transitions, 1032 flow. Second operand 6 states and 2331 transitions. [2023-11-21 22:12:00,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 381 transitions, 1152 flow [2023-11-21 22:12:00,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 381 transitions, 1136 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:00,252 INFO L231 Difference]: Finished difference. Result has 336 places, 371 transitions, 1066 flow [2023-11-21 22:12:00,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=1016, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1066, PETRI_PLACES=336, PETRI_TRANSITIONS=371} [2023-11-21 22:12:00,254 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, 5 predicate places. [2023-11-21 22:12:00,254 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 371 transitions, 1066 flow [2023-11-21 22:12:00,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 382.8) internal successors, (1914), 5 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:00,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:00,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:12:00,256 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting cleanerErr2ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:12:00,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:00,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1046908951, now seen corresponding path program 1 times [2023-11-21 22:12:00,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:00,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478762886] [2023-11-21 22:12:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:00,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:00,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:00,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478762886] [2023-11-21 22:12:00,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478762886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:00,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:00,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:00,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436622770] [2023-11-21 22:12:00,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:00,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:00,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:00,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:00,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:00,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 425 [2023-11-21 22:12:00,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 371 transitions, 1066 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:00,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 425 [2023-11-21 22:12:00,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:04,972 INFO L124 PetriNetUnfolderBase]: 4470/27095 cut-off events. [2023-11-21 22:12:04,972 INFO L125 PetriNetUnfolderBase]: For 1466/1737 co-relation queries the response was YES. [2023-11-21 22:12:05,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42273 conditions, 27095 events. 4470/27095 cut-off events. For 1466/1737 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 319422 event pairs, 1707 based on Foata normal form. 0/24572 useless extension candidates. Maximal degree in co-relation 42206. Up to 4259 conditions per place. [2023-11-21 22:12:05,198 INFO L140 encePairwiseOnDemand]: 420/425 looper letters, 35 selfloop transitions, 2 changer transitions 0/381 dead transitions. [2023-11-21 22:12:05,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 381 transitions, 1163 flow [2023-11-21 22:12:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1171 transitions. [2023-11-21 22:12:05,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9184313725490196 [2023-11-21 22:12:05,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1171 transitions. [2023-11-21 22:12:05,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1171 transitions. [2023-11-21 22:12:05,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:05,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1171 transitions. [2023-11-21 22:12:05,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.3333333333333) internal successors, (1171), 3 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:05,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:05,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:05,211 INFO L175 Difference]: Start difference. First operand has 336 places, 371 transitions, 1066 flow. Second operand 3 states and 1171 transitions. [2023-11-21 22:12:05,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 381 transitions, 1163 flow [2023-11-21 22:12:05,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 381 transitions, 1159 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:12:05,226 INFO L231 Difference]: Finished difference. Result has 335 places, 370 transitions, 1070 flow [2023-11-21 22:12:05,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=1056, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1070, PETRI_PLACES=335, PETRI_TRANSITIONS=370} [2023-11-21 22:12:05,228 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, 4 predicate places. [2023-11-21 22:12:05,228 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 370 transitions, 1070 flow [2023-11-21 22:12:05,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:05,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:05,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:05,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:12:05,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:12:05,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash -281259243, now seen corresponding path program 1 times [2023-11-21 22:12:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150359515] [2023-11-21 22:12:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:05,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:05,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:05,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150359515] [2023-11-21 22:12:05,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150359515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:05,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:05,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:12:05,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035178512] [2023-11-21 22:12:05,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:05,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:05,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:05,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:05,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:05,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 425 [2023-11-21 22:12:05,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 370 transitions, 1070 flow. Second operand has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:05,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:05,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 425 [2023-11-21 22:12:05,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:09,807 INFO L124 PetriNetUnfolderBase]: 3653/23750 cut-off events. [2023-11-21 22:12:09,807 INFO L125 PetriNetUnfolderBase]: For 1009/1328 co-relation queries the response was YES. [2023-11-21 22:12:09,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35327 conditions, 23750 events. 3653/23750 cut-off events. For 1009/1328 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 278012 event pairs, 1210 based on Foata normal form. 8/21047 useless extension candidates. Maximal degree in co-relation 35260. Up to 3358 conditions per place. [2023-11-21 22:12:10,057 INFO L140 encePairwiseOnDemand]: 421/425 looper letters, 33 selfloop transitions, 3 changer transitions 0/385 dead transitions. [2023-11-21 22:12:10,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 385 transitions, 1178 flow [2023-11-21 22:12:10,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1201 transitions. [2023-11-21 22:12:10,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419607843137255 [2023-11-21 22:12:10,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1201 transitions. [2023-11-21 22:12:10,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1201 transitions. [2023-11-21 22:12:10,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:10,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1201 transitions. [2023-11-21 22:12:10,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,071 INFO L175 Difference]: Start difference. First operand has 335 places, 370 transitions, 1070 flow. Second operand 3 states and 1201 transitions. [2023-11-21 22:12:10,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 385 transitions, 1178 flow [2023-11-21 22:12:10,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 385 transitions, 1178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:12:10,091 INFO L231 Difference]: Finished difference. Result has 338 places, 372 transitions, 1089 flow [2023-11-21 22:12:10,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1089, PETRI_PLACES=338, PETRI_TRANSITIONS=372} [2023-11-21 22:12:10,092 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, 7 predicate places. [2023-11-21 22:12:10,093 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 372 transitions, 1089 flow [2023-11-21 22:12:10,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:10,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:10,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:12:10,094 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting cleanerErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:12:10,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:10,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1587111150, now seen corresponding path program 1 times [2023-11-21 22:12:10,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:10,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940992660] [2023-11-21 22:12:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:10,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:10,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:10,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940992660] [2023-11-21 22:12:10,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940992660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:10,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:10,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:10,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6087593] [2023-11-21 22:12:10,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:10,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:10,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:10,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:10,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 425 [2023-11-21 22:12:10,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 372 transitions, 1089 flow. Second operand has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:10,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 425 [2023-11-21 22:12:10,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand