./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:18,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:18,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:22:18,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:18,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:18,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:18,526 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:18,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:18,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:18,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:18,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:18,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:18,531 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:18,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:18,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:18,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:22:18,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:18,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:22:18,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:18,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:18,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:18,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:18,539 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:22:18,540 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:18,540 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:22:18,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:18,542 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:18,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:18,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:18,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:18,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:18,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:18,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:18,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:18,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:18,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:18,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:18,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:18,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:18,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:18,550 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:18,550 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_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2023-11-06 22:22:18,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:18,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:18,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:18,892 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:18,893 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:18,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2023-11-06 22:22:22,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:22,653 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:22,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2023-11-06 22:22:22,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/data/586812cfa/ffbc8994a6454e77b9c932977161d0f4/FLAG84b338798 [2023-11-06 22:22:22,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/data/586812cfa/ffbc8994a6454e77b9c932977161d0f4 [2023-11-06 22:22:22,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:22,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:22,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:22,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:22,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:22,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:22" (1/1) ... [2023-11-06 22:22:22,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a01c208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:22, skipping insertion in model container [2023-11-06 22:22:22,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:22" (1/1) ... [2023-11-06 22:22:22,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:23,085 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:22:23,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:23,500 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:23,524 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:22:23,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:23,707 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:23,717 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:23,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23 WrapperNode [2023-11-06 22:22:23,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:23,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:23,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:23,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:23,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:23,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:23,892 INFO L138 Inliner]: procedures = 174, calls = 89, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 878 [2023-11-06 22:22:23,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:23,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:23,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:23,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:23,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:23,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:23,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:23,924 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:23,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:24,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:24,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:24,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:24,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:24,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:24,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:24,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:24,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (1/1) ... [2023-11-06 22:22:24,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:24,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:24,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:24,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:22:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:22:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:22:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-06 22:22:24,136 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-06 22:22:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:22:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:22:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:22:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:22:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:24,144 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:22:24,408 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:24,411 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:26,321 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:26,350 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:26,351 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-06 22:22:26,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:26 BoogieIcfgContainer [2023-11-06 22:22:26,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:26,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:26,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:26,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:26,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:22" (1/3) ... [2023-11-06 22:22:26,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e63dc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:26, skipping insertion in model container [2023-11-06 22:22:26,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:23" (2/3) ... [2023-11-06 22:22:26,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e63dc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:26, skipping insertion in model container [2023-11-06 22:22:26,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:26" (3/3) ... [2023-11-06 22:22:26,373 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2023-11-06 22:22:26,389 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:22:26,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:26,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2023-11-06 22:22:26,403 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:22:26,729 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:22:26,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 960 places, 1046 transitions, 2099 flow [2023-11-06 22:22:28,014 INFO L124 PetriNetUnfolderBase]: 135/1545 cut-off events. [2023-11-06 22:22:28,015 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:22:28,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 1545 events. 135/1545 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5802 event pairs, 0 based on Foata normal form. 0/1294 useless extension candidates. Maximal degree in co-relation 933. Up to 4 conditions per place. [2023-11-06 22:22:28,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 960 places, 1046 transitions, 2099 flow [2023-11-06 22:22:28,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 960 places, 1046 transitions, 2099 flow [2023-11-06 22:22:28,228 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:22:28,248 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 960 places, 1046 transitions, 2099 flow [2023-11-06 22:22:28,254 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 960 places, 1046 transitions, 2099 flow [2023-11-06 22:22:28,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 960 places, 1046 transitions, 2099 flow [2023-11-06 22:22:29,248 INFO L124 PetriNetUnfolderBase]: 135/1545 cut-off events. [2023-11-06 22:22:29,248 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:22:29,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 1545 events. 135/1545 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5802 event pairs, 0 based on Foata normal form. 0/1294 useless extension candidates. Maximal degree in co-relation 933. Up to 4 conditions per place. [2023-11-06 22:22:29,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 433290 [2023-11-06 22:23:11,072 WARN L293 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 102 DAG size of output: 97 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:23:18,265 WARN L293 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 102 DAG size of output: 97 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:23:30,455 WARN L293 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 125 DAG size of output: 123 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:23:46,314 WARN L293 SmtUtils]: Spent 13.93s on a formula simplification. DAG size of input: 134 DAG size of output: 129 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:23:48,642 INFO L134 LiptonReduction]: Checked pairs total: 2182939 [2023-11-06 22:23:48,643 INFO L136 LiptonReduction]: Total number of compositions: 790 [2023-11-06 22:23:48,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:48,664 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@269c07f2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:48,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2023-11-06 22:23:48,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:23:48,667 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:23:48,668 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:23:48,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:48,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:23:48,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-06 22:23:48,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:48,674 INFO L85 PathProgramCache]: Analyzing trace with hash 118651, now seen corresponding path program 1 times [2023-11-06 22:23:48,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:48,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618006868] [2023-11-06 22:23:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:48,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:48,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618006868] [2023-11-06 22:23:48,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618006868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:48,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:48,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:48,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635152463] [2023-11-06 22:23:48,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:48,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:23:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:48,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:23:48,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:23:48,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 974 out of 1836 [2023-11-06 22:23:48,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 509 transitions, 1025 flow. Second operand has 2 states, 2 states have (on average 975.0) internal successors, (1950), 2 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:48,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:48,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 974 of 1836 [2023-11-06 22:23:49,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:54,346 INFO L124 PetriNetUnfolderBase]: 5626/19979 cut-off events. [2023-11-06 22:23:54,347 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-06 22:23:54,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30284 conditions, 19979 events. 5626/19979 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 195567 event pairs, 4464 based on Foata normal form. 1615/19202 useless extension candidates. Maximal degree in co-relation 29951. Up to 10300 conditions per place. [2023-11-06 22:23:54,510 INFO L140 encePairwiseOnDemand]: 1798/1836 looper letters, 157 selfloop transitions, 0 changer transitions 0/454 dead transitions. [2023-11-06 22:23:54,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 454 transitions, 1229 flow [2023-11-06 22:23:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:23:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:23:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2143 transitions. [2023-11-06 22:23:54,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5836056644880174 [2023-11-06 22:23:54,545 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2143 transitions. [2023-11-06 22:23:54,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2143 transitions. [2023-11-06 22:23:54,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:54,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2143 transitions. [2023-11-06 22:23:54,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1071.5) internal successors, (2143), 2 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:54,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1836.0) internal successors, (5508), 3 states have internal predecessors, (5508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:54,594 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1836.0) internal successors, (5508), 3 states have internal predecessors, (5508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:54,597 INFO L175 Difference]: Start difference. First operand has 460 places, 509 transitions, 1025 flow. Second operand 2 states and 2143 transitions. [2023-11-06 22:23:54,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 454 transitions, 1229 flow [2023-11-06 22:23:54,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 454 transitions, 1229 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:23:54,632 INFO L231 Difference]: Finished difference. Result has 439 places, 454 transitions, 915 flow [2023-11-06 22:23:54,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1836, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=915, PETRI_PLACES=439, PETRI_TRANSITIONS=454} [2023-11-06 22:23:54,640 INFO L281 CegarLoopForPetriNet]: 460 programPoint places, -21 predicate places. [2023-11-06 22:23:54,640 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 454 transitions, 915 flow [2023-11-06 22:23:54,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 975.0) internal successors, (1950), 2 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:54,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:54,643 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-06 22:23:54,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:23:54,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-06 22:23:54,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:54,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1827080769, now seen corresponding path program 1 times [2023-11-06 22:23:54,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:54,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984115664] [2023-11-06 22:23:54,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:54,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:23:55,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:55,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984115664] [2023-11-06 22:23:55,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984115664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:55,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:55,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:55,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593143839] [2023-11-06 22:23:55,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:55,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:55,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:55,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:55,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 968 out of 1836 [2023-11-06 22:23:55,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 454 transitions, 915 flow. Second operand has 3 states, 3 states have (on average 969.6666666666666) internal successors, (2909), 3 states have internal predecessors, (2909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:55,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:55,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 968 of 1836 [2023-11-06 22:23:55,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:00,178 INFO L124 PetriNetUnfolderBase]: 5626/19980 cut-off events. [2023-11-06 22:24:00,178 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-06 22:24:00,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30287 conditions, 19980 events. 5626/19980 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 195403 event pairs, 4464 based on Foata normal form. 0/17588 useless extension candidates. Maximal degree in co-relation 30283. Up to 10300 conditions per place. [2023-11-06 22:24:00,294 INFO L140 encePairwiseOnDemand]: 1833/1836 looper letters, 156 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2023-11-06 22:24:00,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 455 transitions, 1233 flow [2023-11-06 22:24:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3063 transitions. [2023-11-06 22:24:00,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5561002178649237 [2023-11-06 22:24:00,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3063 transitions. [2023-11-06 22:24:00,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3063 transitions. [2023-11-06 22:24:00,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:00,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3063 transitions. [2023-11-06 22:24:00,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1021.0) internal successors, (3063), 3 states have internal predecessors, (3063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:00,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1836.0) internal successors, (7344), 4 states have internal predecessors, (7344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:00,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1836.0) internal successors, (7344), 4 states have internal predecessors, (7344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:00,348 INFO L175 Difference]: Start difference. First operand has 439 places, 454 transitions, 915 flow. Second operand 3 states and 3063 transitions. [2023-11-06 22:24:00,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 455 transitions, 1233 flow [2023-11-06 22:24:00,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 455 transitions, 1233 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:24:00,364 INFO L231 Difference]: Finished difference. Result has 442 places, 455 transitions, 927 flow [2023-11-06 22:24:00,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1836, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=927, PETRI_PLACES=442, PETRI_TRANSITIONS=455} [2023-11-06 22:24:00,367 INFO L281 CegarLoopForPetriNet]: 460 programPoint places, -18 predicate places. [2023-11-06 22:24:00,367 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 455 transitions, 927 flow [2023-11-06 22:24:00,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 969.6666666666666) internal successors, (2909), 3 states have internal predecessors, (2909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:00,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:00,371 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:00,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:24:00,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-06 22:24:00,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:00,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1344473756, now seen corresponding path program 1 times [2023-11-06 22:24:00,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:00,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918248957] [2023-11-06 22:24:00,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:00,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:24:00,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:00,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918248957] [2023-11-06 22:24:00,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918248957] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:00,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847347970] [2023-11-06 22:24:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:00,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:00,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:00,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:24:00,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:24:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:00,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:24:00,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:24:00,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:24:00,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847347970] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:24:00,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:24:00,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:24:00,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293937976] [2023-11-06 22:24:00,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:00,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:24:00,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:00,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:24:00,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:24:00,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 967 out of 1836 [2023-11-06 22:24:00,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 455 transitions, 927 flow. Second operand has 6 states, 6 states have (on average 968.8333333333334) internal successors, (5813), 6 states have internal predecessors, (5813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:00,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:00,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 967 of 1836 [2023-11-06 22:24:00,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:05,313 INFO L124 PetriNetUnfolderBase]: 5626/19982 cut-off events. [2023-11-06 22:24:05,313 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-06 22:24:05,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30300 conditions, 19982 events. 5626/19982 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 195685 event pairs, 4464 based on Foata normal form. 0/17590 useless extension candidates. Maximal degree in co-relation 30294. Up to 10300 conditions per place. [2023-11-06 22:24:05,424 INFO L140 encePairwiseOnDemand]: 1833/1836 looper letters, 156 selfloop transitions, 4 changer transitions 0/457 dead transitions. [2023-11-06 22:24:05,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 457 transitions, 1255 flow [2023-11-06 22:24:05,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:24:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:24:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4997 transitions. [2023-11-06 22:24:05,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5443355119825708 [2023-11-06 22:24:05,444 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4997 transitions. [2023-11-06 22:24:05,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4997 transitions. [2023-11-06 22:24:05,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:05,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4997 transitions. [2023-11-06 22:24:05,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 999.4) internal successors, (4997), 5 states have internal predecessors, (4997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:05,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1836.0) internal successors, (11016), 6 states have internal predecessors, (11016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:05,499 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1836.0) internal successors, (11016), 6 states have internal predecessors, (11016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:05,499 INFO L175 Difference]: Start difference. First operand has 442 places, 455 transitions, 927 flow. Second operand 5 states and 4997 transitions. [2023-11-06 22:24:05,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 457 transitions, 1255 flow [2023-11-06 22:24:05,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 457 transitions, 1251 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:05,515 INFO L231 Difference]: Finished difference. Result has 447 places, 457 transitions, 949 flow [2023-11-06 22:24:05,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1836, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=949, PETRI_PLACES=447, PETRI_TRANSITIONS=457} [2023-11-06 22:24:05,518 INFO L281 CegarLoopForPetriNet]: 460 programPoint places, -13 predicate places. [2023-11-06 22:24:05,518 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 457 transitions, 949 flow [2023-11-06 22:24:05,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 968.8333333333334) internal successors, (5813), 6 states have internal predecessors, (5813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:05,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:05,522 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-11-06 22:24:05,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:05,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ed2f62-32c3-47fe-954d-fbb9163594c4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:05,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-06 22:24:05,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash 684465412, now seen corresponding path program 2 times [2023-11-06 22:24:05,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616547658] [2023-11-06 22:24:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:05,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:24:05,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:24:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:24:05,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:24:05,973 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:24:05,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (110 of 111 remaining) [2023-11-06 22:24:05,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (109 of 111 remaining) [2023-11-06 22:24:05,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (108 of 111 remaining) [2023-11-06 22:24:05,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (107 of 111 remaining) [2023-11-06 22:24:05,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (106 of 111 remaining) [2023-11-06 22:24:05,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (105 of 111 remaining) [2023-11-06 22:24:05,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (104 of 111 remaining) [2023-11-06 22:24:05,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (103 of 111 remaining) [2023-11-06 22:24:05,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (102 of 111 remaining) [2023-11-06 22:24:05,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (101 of 111 remaining) [2023-11-06 22:24:05,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (100 of 111 remaining) [2023-11-06 22:24:05,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (99 of 111 remaining) [2023-11-06 22:24:05,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (98 of 111 remaining) [2023-11-06 22:24:05,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (97 of 111 remaining) [2023-11-06 22:24:05,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (96 of 111 remaining) [2023-11-06 22:24:05,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (95 of 111 remaining) [2023-11-06 22:24:05,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (94 of 111 remaining) [2023-11-06 22:24:05,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (93 of 111 remaining) [2023-11-06 22:24:05,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (92 of 111 remaining) [2023-11-06 22:24:05,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (91 of 111 remaining) [2023-11-06 22:24:05,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (90 of 111 remaining) [2023-11-06 22:24:05,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (89 of 111 remaining) [2023-11-06 22:24:05,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (88 of 111 remaining) [2023-11-06 22:24:05,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (87 of 111 remaining) [2023-11-06 22:24:05,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (86 of 111 remaining) [2023-11-06 22:24:05,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (85 of 111 remaining) [2023-11-06 22:24:05,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (84 of 111 remaining) [2023-11-06 22:24:05,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (83 of 111 remaining) [2023-11-06 22:24:05,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (82 of 111 remaining) [2023-11-06 22:24:05,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (81 of 111 remaining) [2023-11-06 22:24:05,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (80 of 111 remaining) [2023-11-06 22:24:05,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE (79 of 111 remaining) [2023-11-06 22:24:05,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE (78 of 111 remaining) [2023-11-06 22:24:05,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE (77 of 111 remaining) [2023-11-06 22:24:05,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE (76 of 111 remaining) [2023-11-06 22:24:05,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE (75 of 111 remaining) [2023-11-06 22:24:05,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE (74 of 111 remaining) [2023-11-06 22:24:06,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE (73 of 111 remaining) [2023-11-06 22:24:06,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE (72 of 111 remaining) [2023-11-06 22:24:06,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE (71 of 111 remaining) [2023-11-06 22:24:06,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE (70 of 111 remaining) [2023-11-06 22:24:06,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE (69 of 111 remaining) [2023-11-06 22:24:06,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (68 of 111 remaining) [2023-11-06 22:24:06,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (67 of 111 remaining) [2023-11-06 22:24:06,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (66 of 111 remaining) [2023-11-06 22:24:06,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (65 of 111 remaining) [2023-11-06 22:24:06,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (64 of 111 remaining) [2023-11-06 22:24:06,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (63 of 111 remaining) [2023-11-06 22:24:06,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (62 of 111 remaining) [2023-11-06 22:24:06,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (61 of 111 remaining) [2023-11-06 22:24:06,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (60 of 111 remaining) [2023-11-06 22:24:06,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (59 of 111 remaining) [2023-11-06 22:24:06,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (58 of 111 remaining) [2023-11-06 22:24:06,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (57 of 111 remaining) [2023-11-06 22:24:06,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (56 of 111 remaining) [2023-11-06 22:24:06,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (55 of 111 remaining) [2023-11-06 22:24:06,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (54 of 111 remaining) [2023-11-06 22:24:06,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (53 of 111 remaining) [2023-11-06 22:24:06,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (52 of 111 remaining) [2023-11-06 22:24:06,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (51 of 111 remaining) [2023-11-06 22:24:06,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (50 of 111 remaining) [2023-11-06 22:24:06,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (49 of 111 remaining) [2023-11-06 22:24:06,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (48 of 111 remaining) [2023-11-06 22:24:06,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (47 of 111 remaining) [2023-11-06 22:24:06,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (46 of 111 remaining) [2023-11-06 22:24:06,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (45 of 111 remaining) [2023-11-06 22:24:06,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (44 of 111 remaining) [2023-11-06 22:24:06,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (43 of 111 remaining) [2023-11-06 22:24:06,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (42 of 111 remaining) [2023-11-06 22:24:06,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (41 of 111 remaining) [2023-11-06 22:24:06,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (40 of 111 remaining) [2023-11-06 22:24:06,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (39 of 111 remaining) [2023-11-06 22:24:06,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (38 of 111 remaining) [2023-11-06 22:24:06,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (37 of 111 remaining) [2023-11-06 22:24:06,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (36 of 111 remaining) [2023-11-06 22:24:06,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (35 of 111 remaining) [2023-11-06 22:24:06,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (34 of 111 remaining) [2023-11-06 22:24:06,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (33 of 111 remaining) [2023-11-06 22:24:06,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (32 of 111 remaining) [2023-11-06 22:24:06,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (31 of 111 remaining) [2023-11-06 22:24:06,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (30 of 111 remaining) [2023-11-06 22:24:06,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (29 of 111 remaining) [2023-11-06 22:24:06,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (28 of 111 remaining) [2023-11-06 22:24:06,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (27 of 111 remaining) [2023-11-06 22:24:06,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (26 of 111 remaining) [2023-11-06 22:24:06,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (25 of 111 remaining) [2023-11-06 22:24:06,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (24 of 111 remaining) [2023-11-06 22:24:06,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (23 of 111 remaining) [2023-11-06 22:24:06,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (22 of 111 remaining) [2023-11-06 22:24:06,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (21 of 111 remaining) [2023-11-06 22:24:06,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (20 of 111 remaining) [2023-11-06 22:24:06,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (19 of 111 remaining) [2023-11-06 22:24:06,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (18 of 111 remaining) [2023-11-06 22:24:06,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (17 of 111 remaining) [2023-11-06 22:24:06,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (16 of 111 remaining) [2023-11-06 22:24:06,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (15 of 111 remaining) [2023-11-06 22:24:06,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (14 of 111 remaining) [2023-11-06 22:24:06,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (13 of 111 remaining) [2023-11-06 22:24:06,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (12 of 111 remaining) [2023-11-06 22:24:06,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (11 of 111 remaining) [2023-11-06 22:24:06,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (10 of 111 remaining) [2023-11-06 22:24:06,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (9 of 111 remaining) [2023-11-06 22:24:06,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (8 of 111 remaining) [2023-11-06 22:24:06,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (7 of 111 remaining) [2023-11-06 22:24:06,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (6 of 111 remaining) [2023-11-06 22:24:06,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (5 of 111 remaining) [2023-11-06 22:24:06,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (4 of 111 remaining) [2023-11-06 22:24:06,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (3 of 111 remaining) [2023-11-06 22:24:06,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (2 of 111 remaining) [2023-11-06 22:24:06,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (1 of 111 remaining) [2023-11-06 22:24:06,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (0 of 111 remaining) [2023-11-06 22:24:06,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:24:06,028 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-06 22:24:06,031 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:24:06,031 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:24:06,221 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:24:06,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1354 places, 1477 transitions, 2970 flow [2023-11-06 22:24:08,124 INFO L124 PetriNetUnfolderBase]: 228/2546 cut-off events. [2023-11-06 22:24:08,124 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:24:08,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 2546 events. 228/2546 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 12679 event pairs, 0 based on Foata normal form. 0/2127 useless extension candidates. Maximal degree in co-relation 1547. Up to 8 conditions per place. [2023-11-06 22:24:08,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 1354 places, 1477 transitions, 2970 flow [2023-11-06 22:24:08,315 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1354 places, 1477 transitions, 2970 flow [2023-11-06 22:24:08,315 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:24:08,316 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1354 places, 1477 transitions, 2970 flow [2023-11-06 22:24:08,316 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1354 places, 1477 transitions, 2970 flow [2023-11-06 22:24:08,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1354 places, 1477 transitions, 2970 flow [2023-11-06 22:24:09,948 INFO L124 PetriNetUnfolderBase]: 228/2546 cut-off events. [2023-11-06 22:24:09,949 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:24:10,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 2546 events. 228/2546 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 12679 event pairs, 0 based on Foata normal form. 0/2127 useless extension candidates. Maximal degree in co-relation 1547. Up to 8 conditions per place. [2023-11-06 22:24:10,754 INFO L119 LiptonReduction]: Number of co-enabled transitions 1244100 [2023-11-06 22:24:53,515 WARN L293 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 102 DAG size of output: 96 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:25:00,555 WARN L293 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 102 DAG size of output: 96 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:25:13,089 WARN L293 SmtUtils]: Spent 9.46s on a formula simplification. DAG size of input: 125 DAG size of output: 123 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:25:26,911 WARN L293 SmtUtils]: Spent 11.99s on a formula simplification. DAG size of input: 134 DAG size of output: 129 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:25:34,821 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 102 DAG size of output: 97 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:25:42,409 WARN L293 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 102 DAG size of output: 97 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:25:44,488 INFO L134 LiptonReduction]: Checked pairs total: 6353450 [2023-11-06 22:25:44,488 INFO L136 LiptonReduction]: Total number of compositions: 1077 [2023-11-06 22:25:44,491 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:25:44,492 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@269c07f2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:25:44,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 145 error locations. [2023-11-06 22:25:44,495 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:25:44,495 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:25:44,495 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:25:44,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:25:44,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:25:44,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 142 more)] === [2023-11-06 22:25:44,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:44,496 INFO L85 PathProgramCache]: Analyzing trace with hash 214212, now seen corresponding path program 1 times [2023-11-06 22:25:44,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:44,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360052705] [2023-11-06 22:25:44,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:44,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:44,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360052705] [2023-11-06 22:25:44,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360052705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:44,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:44,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:25:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205266966] [2023-11-06 22:25:44,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:44,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:25:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:44,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:25:44,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:25:44,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1373 out of 2554 [2023-11-06 22:25:44,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 677 places, 745 transitions, 1506 flow. Second operand has 2 states, 2 states have (on average 1374.0) internal successors, (2748), 2 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:25:44,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:25:44,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1373 of 2554 [2023-11-06 22:25:44,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand