./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc --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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:10:26,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:10:26,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:10:26,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:10:26,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:10:26,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:10:26,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:10:26,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:10:26,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:10:26,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:10:26,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:10:26,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:10:26,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:10:26,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:10:26,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:10:26,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:10:26,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:10:26,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:10:26,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:10:26,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:10:26,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:10:26,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:10:26,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:10:26,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:10:26,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:10:26,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:10:26,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:10:26,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:10:26,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:10:26,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:10:26,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:10:26,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:10:26,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:10:26,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:10:26,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:10:26,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:10:26,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:10:26,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:10:26,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:10:26,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:10:26,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:10:26,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:10:26,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:10:26,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:10:26,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:10:26,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:10:26,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:10:26,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:10:26,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:10:26,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:10:26,703 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:10:26,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:10:26,704 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:10:26,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:10:26,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:10:26,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:10:26,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:10:26,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:10:26,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:10:26,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:10:26,706 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:10:26,706 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:10:26,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:10:26,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:10:26,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:10:26,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:10:26,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:10:26,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:10:26,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:26,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:10:26,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:10:26,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:10:26,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:10:26,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:10:26,711 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:10:26,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:10:26,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:10:26,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-02 21:10:26,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:10:27,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:10:27,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:10:27,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:10:27,026 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:10:27,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-02 21:10:27,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/data/1d2f53008/09d6c6fb789a43049f8fa11b065e2f3e/FLAG5462e569e [2022-11-02 21:10:27,752 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:10:27,753 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-02 21:10:27,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/data/1d2f53008/09d6c6fb789a43049f8fa11b065e2f3e/FLAG5462e569e [2022-11-02 21:10:27,933 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/data/1d2f53008/09d6c6fb789a43049f8fa11b065e2f3e [2022-11-02 21:10:27,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:10:27,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:10:27,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:27,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:10:27,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:10:27,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:27" (1/1) ... [2022-11-02 21:10:27,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753fb456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:27, skipping insertion in model container [2022-11-02 21:10:27,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:27" (1/1) ... [2022-11-02 21:10:27,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:10:28,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:10:28,315 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 21:10:28,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-02 21:10:29,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:29,035 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:10:29,048 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 21:10:29,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-02 21:10:29,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:29,274 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:10:29,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29 WrapperNode [2022-11-02 21:10:29,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:29,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:29,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:10:29,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:10:29,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,407 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-02 21:10:29,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:29,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:10:29,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:10:29,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:10:29,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,509 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:10:29,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:10:29,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:10:29,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:10:29,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (1/1) ... [2022-11-02 21:10:29,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:29,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:29,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:10:29,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a44f186-47cb-4425-9a9e-1cbf6ddfd85f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:10:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 21:10:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:10:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 21:10:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:10:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:10:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:10:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:10:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:10:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:10:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-02 21:10:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-02 21:10:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:10:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:10:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:10:29,610 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:10:29,985 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:10:29,987 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:10:30,514 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:10:30,681 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:10:30,681 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:10:30,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:30 BoogieIcfgContainer [2022-11-02 21:10:30,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:10:30,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:10:30,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:10:30,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:10:30,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:10:27" (1/3) ... [2022-11-02 21:10:30,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9df204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:30, skipping insertion in model container [2022-11-02 21:10:30,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:29" (2/3) ... [2022-11-02 21:10:30,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9df204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:30, skipping insertion in model container [2022-11-02 21:10:30,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:30" (3/3) ... [2022-11-02 21:10:30,696 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-11-02 21:10:30,706 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:10:30,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:10:30,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-02 21:10:30,718 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:10:30,820 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:10:30,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-02 21:10:31,061 INFO L130 PetriNetUnfolder]: 8/332 cut-off events. [2022-11-02 21:10:31,062 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:10:31,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 332 events. 8/332 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 680 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 175. Up to 4 conditions per place. [2022-11-02 21:10:31,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-02 21:10:31,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-02 21:10:31,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:10:31,105 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;@174a1a7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:10:31,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-02 21:10:31,119 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-11-02 21:10:31,119 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:10:31,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:31,120 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] [2022-11-02 21:10:31,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:31,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1565249472, now seen corresponding path program 1 times [2022-11-02 21:10:31,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:31,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003472008] [2022-11-02 21:10:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:31,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:32,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:32,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003472008] [2022-11-02 21:10:32,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003472008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:32,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:32,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:32,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792533643] [2022-11-02 21:10:32,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:32,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:32,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:32,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:32,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:32,210 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-02 21:10:32,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 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) [2022-11-02 21:10:32,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:32,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-02 21:10:32,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:33,260 INFO L130 PetriNetUnfolder]: 850/2301 cut-off events. [2022-11-02 21:10:33,261 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-02 21:10:33,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3827 conditions, 2301 events. 850/2301 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 15098 event pairs, 849 based on Foata normal form. 36/2174 useless extension candidates. Maximal degree in co-relation 3456. Up to 1503 conditions per place. [2022-11-02 21:10:33,339 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-02 21:10:33,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-02 21:10:33,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:33,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-02 21:10:33,366 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-02 21:10:33,367 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-02 21:10:33,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-02 21:10:33,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:33,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-02 21:10:33,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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) [2022-11-02 21:10:33,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:33,397 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:33,399 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-02 21:10:33,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-02 21:10:33,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:10:33,416 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-02 21:10:33,418 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-02 21:10:33,427 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-02 21:10:33,428 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-02 21:10:33,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 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) [2022-11-02 21:10:33,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:33,430 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] [2022-11-02 21:10:33,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:10:33,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:33,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:33,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2129762661, now seen corresponding path program 1 times [2022-11-02 21:10:33,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:33,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722965276] [2022-11-02 21:10:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:33,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:34,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:34,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722965276] [2022-11-02 21:10:34,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722965276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:34,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:34,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:34,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981397562] [2022-11-02 21:10:34,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:34,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:34,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:34,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:34,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:34,023 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-02 21:10:34,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 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) [2022-11-02 21:10:34,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:34,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-02 21:10:34,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:34,824 INFO L130 PetriNetUnfolder]: 826/2037 cut-off events. [2022-11-02 21:10:34,824 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:10:34,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3515 conditions, 2037 events. 826/2037 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 13066 event pairs, 825 based on Foata normal form. 0/1911 useless extension candidates. Maximal degree in co-relation 3453. Up to 1461 conditions per place. [2022-11-02 21:10:34,841 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-02 21:10:34,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-02 21:10:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:34,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-02 21:10:34,845 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-02 21:10:34,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-02 21:10:34,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-02 21:10:34,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:34,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-02 21:10:34,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 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) [2022-11-02 21:10:34,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:34,854 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:34,854 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-02 21:10:34,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-02 21:10:34,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:10:34,875 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-02 21:10:34,876 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-02 21:10:34,877 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-02 21:10:34,877 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-02 21:10:34,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 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) [2022-11-02 21:10:34,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:34,878 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] [2022-11-02 21:10:34,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:10:34,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:34,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:34,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2057709957, now seen corresponding path program 1 times [2022-11-02 21:10:34,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:34,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403534664] [2022-11-02 21:10:34,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:34,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:35,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:35,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403534664] [2022-11-02 21:10:35,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403534664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:35,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:35,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:35,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578300302] [2022-11-02 21:10:35,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:35,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:35,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:35,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:35,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:35,510 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-02 21:10:35,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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) [2022-11-02 21:10:35,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:35,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-02 21:10:35,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:36,596 INFO L130 PetriNetUnfolder]: 1102/2533 cut-off events. [2022-11-02 21:10:36,597 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:10:36,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4476 conditions, 2533 events. 1102/2533 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 16747 event pairs, 903 based on Foata normal form. 0/2417 useless extension candidates. Maximal degree in co-relation 4403. Up to 1831 conditions per place. [2022-11-02 21:10:36,616 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-02 21:10:36,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-02 21:10:36,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:36,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:36,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-02 21:10:36,620 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-02 21:10:36,620 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-02 21:10:36,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-02 21:10:36,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:36,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-02 21:10:36,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 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) [2022-11-02 21:10:36,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:36,628 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:36,629 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-02 21:10:36,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-02 21:10:36,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:10:36,635 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-02 21:10:36,635 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-02 21:10:36,638 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-02 21:10:36,638 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-02 21:10:36,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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) [2022-11-02 21:10:36,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:36,639 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] [2022-11-02 21:10:36,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:10:36,640 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:36,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:36,641 INFO L85 PathProgramCache]: Analyzing trace with hash -496369643, now seen corresponding path program 1 times [2022-11-02 21:10:36,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:36,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561486084] [2022-11-02 21:10:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:36,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:36,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:36,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561486084] [2022-11-02 21:10:36,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561486084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:36,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:36,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:36,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727763909] [2022-11-02 21:10:36,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:36,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:36,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:36,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:36,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:36,844 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-02 21:10:36,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 206.6) internal successors, (1033), 5 states have internal predecessors, (1033), 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) [2022-11-02 21:10:36,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:36,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-02 21:10:36,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:37,334 INFO L130 PetriNetUnfolder]: 533/1823 cut-off events. [2022-11-02 21:10:37,334 INFO L131 PetriNetUnfolder]: For 536/596 co-relation queries the response was YES. [2022-11-02 21:10:37,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3549 conditions, 1823 events. 533/1823 cut-off events. For 536/596 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12074 event pairs, 348 based on Foata normal form. 0/1721 useless extension candidates. Maximal degree in co-relation 2555. Up to 738 conditions per place. [2022-11-02 21:10:37,355 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-02 21:10:37,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-02 21:10:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-02 21:10:37,361 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-02 21:10:37,366 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-02 21:10:37,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-02 21:10:37,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:37,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-02 21:10:37,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 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) [2022-11-02 21:10:37,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:37,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:37,375 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-02 21:10:37,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-02 21:10:37,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:10:37,392 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-02 21:10:37,393 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-02 21:10:37,395 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-02 21:10:37,395 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-02 21:10:37,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 206.6) internal successors, (1033), 5 states have internal predecessors, (1033), 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) [2022-11-02 21:10:37,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:37,397 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] [2022-11-02 21:10:37,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:10:37,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:37,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 8979447, now seen corresponding path program 1 times [2022-11-02 21:10:37,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:37,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496207444] [2022-11-02 21:10:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:37,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:38,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:38,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:38,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496207444] [2022-11-02 21:10:38,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496207444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:38,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:38,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:38,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816566293] [2022-11-02 21:10:38,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:38,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:38,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:38,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:38,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:38,083 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-02 21:10:38,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 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) [2022-11-02 21:10:38,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:38,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-02 21:10:38,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:39,306 INFO L130 PetriNetUnfolder]: 1231/2753 cut-off events. [2022-11-02 21:10:39,307 INFO L131 PetriNetUnfolder]: For 929/935 co-relation queries the response was YES. [2022-11-02 21:10:39,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6590 conditions, 2753 events. 1231/2753 cut-off events. For 929/935 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 17851 event pairs, 837 based on Foata normal form. 0/2656 useless extension candidates. Maximal degree in co-relation 6487. Up to 2032 conditions per place. [2022-11-02 21:10:39,333 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-02 21:10:39,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-02 21:10:39,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-02 21:10:39,338 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-02 21:10:39,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-02 21:10:39,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-02 21:10:39,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:39,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-02 21:10:39,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 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) [2022-11-02 21:10:39,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:39,345 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:39,346 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-02 21:10:39,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-02 21:10:39,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:10:39,356 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-02 21:10:39,357 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-02 21:10:39,357 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-02 21:10:39,358 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-02 21:10:39,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 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) [2022-11-02 21:10:39,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:39,359 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] [2022-11-02 21:10:39,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:10:39,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:39,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash 856795434, now seen corresponding path program 1 times [2022-11-02 21:10:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:39,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660651041] [2022-11-02 21:10:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:39,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:39,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:39,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660651041] [2022-11-02 21:10:39,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660651041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:39,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:39,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:39,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317672900] [2022-11-02 21:10:39,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:39,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:39,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:39,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:39,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:39,972 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-02 21:10:39,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 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) [2022-11-02 21:10:39,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:39,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-02 21:10:39,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:41,474 INFO L130 PetriNetUnfolder]: 1432/3268 cut-off events. [2022-11-02 21:10:41,475 INFO L131 PetriNetUnfolder]: For 2414/2426 co-relation queries the response was YES. [2022-11-02 21:10:41,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9403 conditions, 3268 events. 1432/3268 cut-off events. For 2414/2426 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 21354 event pairs, 638 based on Foata normal form. 0/3190 useless extension candidates. Maximal degree in co-relation 7545. Up to 2134 conditions per place. [2022-11-02 21:10:41,517 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 146 selfloop transitions, 26 changer transitions 0/303 dead transitions. [2022-11-02 21:10:41,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 303 transitions, 1412 flow [2022-11-02 21:10:41,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:41,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-02 21:10:41,522 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-02 21:10:41,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-02 21:10:41,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-02 21:10:41,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:41,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-02 21:10:41,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 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) [2022-11-02 21:10:41,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:41,533 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:41,533 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 976 transitions. [2022-11-02 21:10:41,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 303 transitions, 1412 flow [2022-11-02 21:10:41,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 303 transitions, 1364 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-02 21:10:41,549 INFO L231 Difference]: Finished difference. Result has 245 places, 288 transitions, 1082 flow [2022-11-02 21:10:41,550 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=245, PETRI_TRANSITIONS=288} [2022-11-02 21:10:41,553 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 0 predicate places. [2022-11-02 21:10:41,554 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 288 transitions, 1082 flow [2022-11-02 21:10:41,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 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) [2022-11-02 21:10:41,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:41,555 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] [2022-11-02 21:10:41,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:10:41,555 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:41,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2029226046, now seen corresponding path program 1 times [2022-11-02 21:10:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:41,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302862282] [2022-11-02 21:10:41,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:41,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:42,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:42,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302862282] [2022-11-02 21:10:42,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302862282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:42,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:42,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712550041] [2022-11-02 21:10:42,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:42,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:42,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:42,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:42,416 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-02 21:10:42,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 288 transitions, 1082 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:42,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:42,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-02 21:10:42,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:43,778 INFO L130 PetriNetUnfolder]: 1425/3428 cut-off events. [2022-11-02 21:10:43,779 INFO L131 PetriNetUnfolder]: For 4412/4577 co-relation queries the response was YES. [2022-11-02 21:10:43,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10743 conditions, 3428 events. 1425/3428 cut-off events. For 4412/4577 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 23203 event pairs, 618 based on Foata normal form. 0/3341 useless extension candidates. Maximal degree in co-relation 7764. Up to 2288 conditions per place. [2022-11-02 21:10:43,823 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 177 selfloop transitions, 22 changer transitions 0/336 dead transitions. [2022-11-02 21:10:43,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 336 transitions, 1730 flow [2022-11-02 21:10:43,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:43,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1029 transitions. [2022-11-02 21:10:43,828 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.694331983805668 [2022-11-02 21:10:43,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1029 transitions. [2022-11-02 21:10:43,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1029 transitions. [2022-11-02 21:10:43,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:43,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1029 transitions. [2022-11-02 21:10:43,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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) [2022-11-02 21:10:43,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:43,835 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:43,835 INFO L175 Difference]: Start difference. First operand has 245 places, 288 transitions, 1082 flow. Second operand 6 states and 1029 transitions. [2022-11-02 21:10:43,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 336 transitions, 1730 flow [2022-11-02 21:10:43,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 336 transitions, 1730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:10:43,851 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1336 flow [2022-11-02 21:10:43,852 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-02 21:10:43,853 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-02 21:10:43,853 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1336 flow [2022-11-02 21:10:43,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:43,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:43,854 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] [2022-11-02 21:10:43,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:10:43,854 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:43,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1165878409, now seen corresponding path program 1 times [2022-11-02 21:10:43,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:43,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579876920] [2022-11-02 21:10:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:43,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:44,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:44,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:44,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579876920] [2022-11-02 21:10:44,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579876920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:44,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:44,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:44,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168797084] [2022-11-02 21:10:44,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:44,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:44,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:44,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:44,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:44,020 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-02 21:10:44,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1336 flow. Second operand has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 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) [2022-11-02 21:10:44,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:44,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-02 21:10:44,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:44,519 INFO L130 PetriNetUnfolder]: 390/1306 cut-off events. [2022-11-02 21:10:44,519 INFO L131 PetriNetUnfolder]: For 2926/2998 co-relation queries the response was YES. [2022-11-02 21:10:44,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3888 conditions, 1306 events. 390/1306 cut-off events. For 2926/2998 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7349 event pairs, 27 based on Foata normal form. 16/1298 useless extension candidates. Maximal degree in co-relation 3788. Up to 431 conditions per place. [2022-11-02 21:10:44,532 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 65 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-02 21:10:44,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1162 flow [2022-11-02 21:10:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:44,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-02 21:10:44,536 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-02 21:10:44,536 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-02 21:10:44,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-02 21:10:44,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:44,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-02 21:10:44,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2022-11-02 21:10:44,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:44,545 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-02 21:10:44,545 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1336 flow. Second operand 6 states and 1278 transitions. [2022-11-02 21:10:44,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1162 flow [2022-11-02 21:10:44,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1066 flow, removed 15 selfloop flow, removed 24 redundant places. [2022-11-02 21:10:44,558 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 727 flow [2022-11-02 21:10:44,559 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-02 21:10:44,559 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-02 21:10:44,560 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 727 flow [2022-11-02 21:10:44,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 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) [2022-11-02 21:10:44,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:44,561 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] [2022-11-02 21:10:44,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:10:44,561 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:44,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:44,562 INFO L85 PathProgramCache]: Analyzing trace with hash 868665731, now seen corresponding path program 1 times [2022-11-02 21:10:44,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:44,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504360048] [2022-11-02 21:10:44,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:44,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:47,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:47,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:47,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504360048] [2022-11-02 21:10:47,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504360048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:47,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:47,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:10:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884942897] [2022-11-02 21:10:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:47,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:10:47,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:47,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:10:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:10:47,191 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:10:47,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 727 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:10:47,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:47,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:10:47,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:50,502 INFO L130 PetriNetUnfolder]: 1372/2922 cut-off events. [2022-11-02 21:10:50,502 INFO L131 PetriNetUnfolder]: For 5039/5039 co-relation queries the response was YES. [2022-11-02 21:10:50,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9424 conditions, 2922 events. 1372/2922 cut-off events. For 5039/5039 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 17105 event pairs, 675 based on Foata normal form. 8/2895 useless extension candidates. Maximal degree in co-relation 9163. Up to 1634 conditions per place. [2022-11-02 21:10:50,523 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 211 selfloop transitions, 65 changer transitions 0/387 dead transitions. [2022-11-02 21:10:50,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 387 transitions, 1943 flow [2022-11-02 21:10:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:10:50,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:10:50,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2810 transitions. [2022-11-02 21:10:50,534 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5688259109311741 [2022-11-02 21:10:50,534 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2810 transitions. [2022-11-02 21:10:50,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2810 transitions. [2022-11-02 21:10:50,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:50,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2810 transitions. [2022-11-02 21:10:50,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.5) internal successors, (2810), 20 states have internal predecessors, (2810), 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) [2022-11-02 21:10:50,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:10:50,555 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:10:50,555 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 727 flow. Second operand 20 states and 2810 transitions. [2022-11-02 21:10:50,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 387 transitions, 1943 flow [2022-11-02 21:10:50,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 387 transitions, 1915 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-02 21:10:50,575 INFO L231 Difference]: Finished difference. Result has 255 places, 267 transitions, 1253 flow [2022-11-02 21:10:50,575 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1253, PETRI_PLACES=255, PETRI_TRANSITIONS=267} [2022-11-02 21:10:50,577 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-02 21:10:50,577 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 267 transitions, 1253 flow [2022-11-02 21:10:50,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:10:50,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:50,579 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] [2022-11-02 21:10:50,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:10:50,579 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:50,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash -807945959, now seen corresponding path program 2 times [2022-11-02 21:10:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396522114] [2022-11-02 21:10:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:53,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:53,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396522114] [2022-11-02 21:10:53,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396522114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:53,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:53,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:10:53,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068156987] [2022-11-02 21:10:53,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:53,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:10:53,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:53,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:10:53,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:10:53,877 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:10:53,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 267 transitions, 1253 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:10:53,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:53,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:10:53,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:57,794 INFO L130 PetriNetUnfolder]: 1488/3124 cut-off events. [2022-11-02 21:10:57,794 INFO L131 PetriNetUnfolder]: For 9738/9766 co-relation queries the response was YES. [2022-11-02 21:10:57,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12211 conditions, 3124 events. 1488/3124 cut-off events. For 9738/9766 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 18455 event pairs, 412 based on Foata normal form. 8/3096 useless extension candidates. Maximal degree in co-relation 11926. Up to 1209 conditions per place. [2022-11-02 21:10:57,833 INFO L137 encePairwiseOnDemand]: 228/247 looper letters, 327 selfloop transitions, 88 changer transitions 0/526 dead transitions. [2022-11-02 21:10:57,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 526 transitions, 3879 flow [2022-11-02 21:10:57,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:10:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:10:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-02 21:10:57,843 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-02 21:10:57,843 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-02 21:10:57,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-02 21:10:57,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:57,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-02 21:10:57,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 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) [2022-11-02 21:10:57,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:10:57,864 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:10:57,864 INFO L175 Difference]: Start difference. First operand has 255 places, 267 transitions, 1253 flow. Second operand 20 states and 2821 transitions. [2022-11-02 21:10:57,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 526 transitions, 3879 flow [2022-11-02 21:10:57,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 526 transitions, 3759 flow, removed 28 selfloop flow, removed 8 redundant places. [2022-11-02 21:10:57,913 INFO L231 Difference]: Finished difference. Result has 275 places, 330 transitions, 2240 flow [2022-11-02 21:10:57,914 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2240, PETRI_PLACES=275, PETRI_TRANSITIONS=330} [2022-11-02 21:10:57,915 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 30 predicate places. [2022-11-02 21:10:57,915 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 330 transitions, 2240 flow [2022-11-02 21:10:57,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:10:57,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:57,917 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] [2022-11-02 21:10:57,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:10:57,917 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:10:57,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:57,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1018123353, now seen corresponding path program 3 times [2022-11-02 21:10:57,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:57,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959029612] [2022-11-02 21:10:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:57,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:00,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:00,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959029612] [2022-11-02 21:11:00,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959029612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:00,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:00,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:00,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47717398] [2022-11-02 21:11:00,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:00,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:00,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:00,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:00,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:00,357 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:00,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 330 transitions, 2240 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:00,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:00,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:00,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:03,725 INFO L130 PetriNetUnfolder]: 1630/3292 cut-off events. [2022-11-02 21:11:03,725 INFO L131 PetriNetUnfolder]: For 22839/22916 co-relation queries the response was YES. [2022-11-02 21:11:03,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16134 conditions, 3292 events. 1630/3292 cut-off events. For 22839/22916 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 19538 event pairs, 471 based on Foata normal form. 8/3261 useless extension candidates. Maximal degree in co-relation 15840. Up to 1556 conditions per place. [2022-11-02 21:11:03,767 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 327 selfloop transitions, 102 changer transitions 0/540 dead transitions. [2022-11-02 21:11:03,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 540 transitions, 4738 flow [2022-11-02 21:11:03,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 21:11:03,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 21:11:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2686 transitions. [2022-11-02 21:11:03,775 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5723417856381845 [2022-11-02 21:11:03,775 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2686 transitions. [2022-11-02 21:11:03,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2686 transitions. [2022-11-02 21:11:03,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:03,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2686 transitions. [2022-11-02 21:11:03,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.3684210526316) internal successors, (2686), 19 states have internal predecessors, (2686), 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) [2022-11-02 21:11:03,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 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) [2022-11-02 21:11:03,794 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 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) [2022-11-02 21:11:03,794 INFO L175 Difference]: Start difference. First operand has 275 places, 330 transitions, 2240 flow. Second operand 19 states and 2686 transitions. [2022-11-02 21:11:03,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 540 transitions, 4738 flow [2022-11-02 21:11:03,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 540 transitions, 4657 flow, removed 21 selfloop flow, removed 9 redundant places. [2022-11-02 21:11:03,875 INFO L231 Difference]: Finished difference. Result has 290 places, 367 transitions, 3129 flow [2022-11-02 21:11:03,876 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2163, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3129, PETRI_PLACES=290, PETRI_TRANSITIONS=367} [2022-11-02 21:11:03,877 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 45 predicate places. [2022-11-02 21:11:03,877 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 367 transitions, 3129 flow [2022-11-02 21:11:03,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:03,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:03,878 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] [2022-11-02 21:11:03,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:11:03,878 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:03,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -209797591, now seen corresponding path program 4 times [2022-11-02 21:11:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:03,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752178707] [2022-11-02 21:11:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:03,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:06,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:06,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:06,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752178707] [2022-11-02 21:11:06,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752178707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:06,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:06,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:06,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423885648] [2022-11-02 21:11:06,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:06,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:06,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:06,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:06,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:06,193 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:06,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 367 transitions, 3129 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:06,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:06,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:06,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:09,595 INFO L130 PetriNetUnfolder]: 1907/3792 cut-off events. [2022-11-02 21:11:09,595 INFO L131 PetriNetUnfolder]: For 35006/35034 co-relation queries the response was YES. [2022-11-02 21:11:09,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21175 conditions, 3792 events. 1907/3792 cut-off events. For 35006/35034 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 22933 event pairs, 690 based on Foata normal form. 8/3762 useless extension candidates. Maximal degree in co-relation 20875. Up to 2253 conditions per place. [2022-11-02 21:11:09,651 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 314 selfloop transitions, 140 changer transitions 0/565 dead transitions. [2022-11-02 21:11:09,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 565 transitions, 5884 flow [2022-11-02 21:11:09,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:11:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 21:11:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2414 transitions. [2022-11-02 21:11:09,657 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5748987854251012 [2022-11-02 21:11:09,657 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2414 transitions. [2022-11-02 21:11:09,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2414 transitions. [2022-11-02 21:11:09,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:09,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2414 transitions. [2022-11-02 21:11:09,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.0) internal successors, (2414), 17 states have internal predecessors, (2414), 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) [2022-11-02 21:11:09,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 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) [2022-11-02 21:11:09,673 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 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) [2022-11-02 21:11:09,673 INFO L175 Difference]: Start difference. First operand has 290 places, 367 transitions, 3129 flow. Second operand 17 states and 2414 transitions. [2022-11-02 21:11:09,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 565 transitions, 5884 flow [2022-11-02 21:11:09,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 565 transitions, 5746 flow, removed 21 selfloop flow, removed 12 redundant places. [2022-11-02 21:11:09,814 INFO L231 Difference]: Finished difference. Result has 302 places, 432 transitions, 4826 flow [2022-11-02 21:11:09,815 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3020, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4826, PETRI_PLACES=302, PETRI_TRANSITIONS=432} [2022-11-02 21:11:09,816 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 57 predicate places. [2022-11-02 21:11:09,816 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 432 transitions, 4826 flow [2022-11-02 21:11:09,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:09,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:09,817 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] [2022-11-02 21:11:09,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:11:09,818 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:09,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:09,818 INFO L85 PathProgramCache]: Analyzing trace with hash -77869031, now seen corresponding path program 5 times [2022-11-02 21:11:09,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:09,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669129959] [2022-11-02 21:11:09,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:09,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:12,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:12,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:12,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669129959] [2022-11-02 21:11:12,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669129959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:12,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:12,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775464087] [2022-11-02 21:11:12,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:12,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:12,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:12,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:12,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:12,461 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:12,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 432 transitions, 4826 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:12,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:12,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:12,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:16,109 INFO L130 PetriNetUnfolder]: 2208/4262 cut-off events. [2022-11-02 21:11:16,110 INFO L131 PetriNetUnfolder]: For 53874/53874 co-relation queries the response was YES. [2022-11-02 21:11:16,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27405 conditions, 4262 events. 2208/4262 cut-off events. For 53874/53874 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 26025 event pairs, 677 based on Foata normal form. 8/4233 useless extension candidates. Maximal degree in co-relation 27097. Up to 2178 conditions per place. [2022-11-02 21:11:16,154 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 269 selfloop transitions, 264 changer transitions 0/644 dead transitions. [2022-11-02 21:11:16,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 644 transitions, 8363 flow [2022-11-02 21:11:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:11:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:11:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2809 transitions. [2022-11-02 21:11:16,160 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5686234817813766 [2022-11-02 21:11:16,160 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2809 transitions. [2022-11-02 21:11:16,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2809 transitions. [2022-11-02 21:11:16,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:16,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2809 transitions. [2022-11-02 21:11:16,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.45) internal successors, (2809), 20 states have internal predecessors, (2809), 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) [2022-11-02 21:11:16,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:16,175 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:16,175 INFO L175 Difference]: Start difference. First operand has 302 places, 432 transitions, 4826 flow. Second operand 20 states and 2809 transitions. [2022-11-02 21:11:16,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 644 transitions, 8363 flow [2022-11-02 21:11:16,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 644 transitions, 8114 flow, removed 109 selfloop flow, removed 9 redundant places. [2022-11-02 21:11:16,386 INFO L231 Difference]: Finished difference. Result has 323 places, 526 transitions, 7413 flow [2022-11-02 21:11:16,387 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=4659, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7413, PETRI_PLACES=323, PETRI_TRANSITIONS=526} [2022-11-02 21:11:16,388 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 78 predicate places. [2022-11-02 21:11:16,388 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 526 transitions, 7413 flow [2022-11-02 21:11:16,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:16,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:16,390 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] [2022-11-02 21:11:16,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:11:16,390 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:16,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash 642267771, now seen corresponding path program 6 times [2022-11-02 21:11:16,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:16,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297404123] [2022-11-02 21:11:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:16,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:18,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:18,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297404123] [2022-11-02 21:11:18,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297404123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:18,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:18,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:18,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250567226] [2022-11-02 21:11:18,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:18,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:18,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:18,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:18,758 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:18,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 526 transitions, 7413 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:18,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:18,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:18,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:22,455 INFO L130 PetriNetUnfolder]: 2380/4574 cut-off events. [2022-11-02 21:11:22,456 INFO L131 PetriNetUnfolder]: For 73229/73229 co-relation queries the response was YES. [2022-11-02 21:11:22,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32588 conditions, 4574 events. 2380/4574 cut-off events. For 73229/73229 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 29414 event pairs, 114 based on Foata normal form. 8/4558 useless extension candidates. Maximal degree in co-relation 32270. Up to 2178 conditions per place. [2022-11-02 21:11:22,500 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 444 selfloop transitions, 216 changer transitions 0/771 dead transitions. [2022-11-02 21:11:22,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 771 transitions, 11724 flow [2022-11-02 21:11:22,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:11:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:11:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-02 21:11:22,511 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-02 21:11:22,511 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-02 21:11:22,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-02 21:11:22,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:22,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-02 21:11:22,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 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) [2022-11-02 21:11:22,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:22,526 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:22,527 INFO L175 Difference]: Start difference. First operand has 323 places, 526 transitions, 7413 flow. Second operand 20 states and 2823 transitions. [2022-11-02 21:11:22,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 771 transitions, 11724 flow [2022-11-02 21:11:22,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 771 transitions, 11187 flow, removed 209 selfloop flow, removed 10 redundant places. [2022-11-02 21:11:22,842 INFO L231 Difference]: Finished difference. Result has 338 places, 573 transitions, 8713 flow [2022-11-02 21:11:22,843 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=6986, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8713, PETRI_PLACES=338, PETRI_TRANSITIONS=573} [2022-11-02 21:11:22,843 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 93 predicate places. [2022-11-02 21:11:22,843 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 573 transitions, 8713 flow [2022-11-02 21:11:22,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:22,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:22,844 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] [2022-11-02 21:11:22,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:11:22,845 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:22,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:22,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2111811, now seen corresponding path program 7 times [2022-11-02 21:11:22,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:22,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441473006] [2022-11-02 21:11:22,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:22,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:24,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:24,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:24,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441473006] [2022-11-02 21:11:24,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441473006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:24,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:24,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:24,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908003788] [2022-11-02 21:11:24,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:24,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:24,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:24,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:24,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:24,715 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:24,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 573 transitions, 8713 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:24,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:24,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:24,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:27,887 INFO L130 PetriNetUnfolder]: 2513/4864 cut-off events. [2022-11-02 21:11:27,887 INFO L131 PetriNetUnfolder]: For 94358/94358 co-relation queries the response was YES. [2022-11-02 21:11:27,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37365 conditions, 4864 events. 2513/4864 cut-off events. For 94358/94358 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 31088 event pairs, 776 based on Foata normal form. 8/4835 useless extension candidates. Maximal degree in co-relation 37044. Up to 2666 conditions per place. [2022-11-02 21:11:27,939 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 337 selfloop transitions, 316 changer transitions 0/764 dead transitions. [2022-11-02 21:11:27,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 764 transitions, 12413 flow [2022-11-02 21:11:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:11:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 21:11:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2415 transitions. [2022-11-02 21:11:27,943 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5751369373660395 [2022-11-02 21:11:27,944 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2415 transitions. [2022-11-02 21:11:27,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2415 transitions. [2022-11-02 21:11:27,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:27,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2415 transitions. [2022-11-02 21:11:27,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.05882352941177) internal successors, (2415), 17 states have internal predecessors, (2415), 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) [2022-11-02 21:11:27,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 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) [2022-11-02 21:11:27,959 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 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) [2022-11-02 21:11:27,959 INFO L175 Difference]: Start difference. First operand has 338 places, 573 transitions, 8713 flow. Second operand 17 states and 2415 transitions. [2022-11-02 21:11:27,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 764 transitions, 12413 flow [2022-11-02 21:11:28,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 764 transitions, 12119 flow, removed 72 selfloop flow, removed 12 redundant places. [2022-11-02 21:11:28,281 INFO L231 Difference]: Finished difference. Result has 352 places, 648 transitions, 11600 flow [2022-11-02 21:11:28,282 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8460, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11600, PETRI_PLACES=352, PETRI_TRANSITIONS=648} [2022-11-02 21:11:28,282 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 107 predicate places. [2022-11-02 21:11:28,282 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 648 transitions, 11600 flow [2022-11-02 21:11:28,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:28,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:28,283 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] [2022-11-02 21:11:28,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:11:28,284 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:28,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:28,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1359927783, now seen corresponding path program 8 times [2022-11-02 21:11:28,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:28,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13329141] [2022-11-02 21:11:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:28,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:30,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:30,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:30,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13329141] [2022-11-02 21:11:30,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13329141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:30,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:30,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:30,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055040021] [2022-11-02 21:11:30,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:30,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:30,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:30,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:30,346 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:30,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 648 transitions, 11600 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:30,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:30,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:30,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:34,628 INFO L130 PetriNetUnfolder]: 2587/5117 cut-off events. [2022-11-02 21:11:34,628 INFO L131 PetriNetUnfolder]: For 119829/119934 co-relation queries the response was YES. [2022-11-02 21:11:34,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41422 conditions, 5117 events. 2587/5117 cut-off events. For 119829/119934 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 33233 event pairs, 611 based on Foata normal form. 8/5083 useless extension candidates. Maximal degree in co-relation 41091. Up to 2407 conditions per place. [2022-11-02 21:11:34,680 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 484 selfloop transitions, 274 changer transitions 0/869 dead transitions. [2022-11-02 21:11:34,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 869 transitions, 15843 flow [2022-11-02 21:11:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:11:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:11:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-02 21:11:34,685 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-02 21:11:34,685 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-02 21:11:34,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-02 21:11:34,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:34,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-02 21:11:34,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 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) [2022-11-02 21:11:34,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:34,700 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:34,700 INFO L175 Difference]: Start difference. First operand has 352 places, 648 transitions, 11600 flow. Second operand 20 states and 2823 transitions. [2022-11-02 21:11:34,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 869 transitions, 15843 flow [2022-11-02 21:11:35,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 869 transitions, 15574 flow, removed 129 selfloop flow, removed 6 redundant places. [2022-11-02 21:11:35,203 INFO L231 Difference]: Finished difference. Result has 370 places, 678 transitions, 12983 flow [2022-11-02 21:11:35,204 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=11411, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12983, PETRI_PLACES=370, PETRI_TRANSITIONS=678} [2022-11-02 21:11:35,204 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 125 predicate places. [2022-11-02 21:11:35,205 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 678 transitions, 12983 flow [2022-11-02 21:11:35,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:35,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:35,206 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] [2022-11-02 21:11:35,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:11:35,206 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:35,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:35,207 INFO L85 PathProgramCache]: Analyzing trace with hash -184197447, now seen corresponding path program 9 times [2022-11-02 21:11:35,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:35,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827246698] [2022-11-02 21:11:35,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:35,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:36,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:36,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827246698] [2022-11-02 21:11:36,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827246698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:36,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:36,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:36,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568029098] [2022-11-02 21:11:36,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:36,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:36,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:36,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:36,935 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:36,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 678 transitions, 12983 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:36,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:36,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:36,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:40,504 INFO L130 PetriNetUnfolder]: 2864/5584 cut-off events. [2022-11-02 21:11:40,504 INFO L131 PetriNetUnfolder]: For 146264/146292 co-relation queries the response was YES. [2022-11-02 21:11:40,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48647 conditions, 5584 events. 2864/5584 cut-off events. For 146264/146292 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37884 event pairs, 172 based on Foata normal form. 8/5560 useless extension candidates. Maximal degree in co-relation 48311. Up to 3279 conditions per place. [2022-11-02 21:11:40,561 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 494 selfloop transitions, 317 changer transitions 0/922 dead transitions. [2022-11-02 21:11:40,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 922 transitions, 18508 flow [2022-11-02 21:11:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 21:11:40,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 21:11:40,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2551 transitions. [2022-11-02 21:11:40,569 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.573774179037337 [2022-11-02 21:11:40,569 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2551 transitions. [2022-11-02 21:11:40,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2551 transitions. [2022-11-02 21:11:40,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:40,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2551 transitions. [2022-11-02 21:11:40,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.72222222222223) internal successors, (2551), 18 states have internal predecessors, (2551), 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) [2022-11-02 21:11:40,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 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) [2022-11-02 21:11:40,582 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 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) [2022-11-02 21:11:40,582 INFO L175 Difference]: Start difference. First operand has 370 places, 678 transitions, 12983 flow. Second operand 18 states and 2551 transitions. [2022-11-02 21:11:40,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 922 transitions, 18508 flow [2022-11-02 21:11:41,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 922 transitions, 17980 flow, removed 39 selfloop flow, removed 12 redundant places. [2022-11-02 21:11:41,111 INFO L231 Difference]: Finished difference. Result has 382 places, 766 transitions, 16475 flow [2022-11-02 21:11:41,112 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12529, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16475, PETRI_PLACES=382, PETRI_TRANSITIONS=766} [2022-11-02 21:11:41,113 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 137 predicate places. [2022-11-02 21:11:41,113 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 766 transitions, 16475 flow [2022-11-02 21:11:41,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:41,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:41,114 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] [2022-11-02 21:11:41,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:11:41,114 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1827479821, now seen corresponding path program 10 times [2022-11-02 21:11:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:41,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455028142] [2022-11-02 21:11:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:41,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:42,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:42,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455028142] [2022-11-02 21:11:42,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455028142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:42,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:42,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:42,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896775842] [2022-11-02 21:11:42,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:42,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:42,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:42,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:42,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:42,956 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:42,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 766 transitions, 16475 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:42,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:42,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:42,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:48,097 INFO L130 PetriNetUnfolder]: 3016/5832 cut-off events. [2022-11-02 21:11:48,097 INFO L131 PetriNetUnfolder]: For 172534/172534 co-relation queries the response was YES. [2022-11-02 21:11:48,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54761 conditions, 5832 events. 3016/5832 cut-off events. For 172534/172534 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 39756 event pairs, 192 based on Foata normal form. 8/5809 useless extension candidates. Maximal degree in co-relation 54418. Up to 3420 conditions per place. [2022-11-02 21:11:48,169 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 471 selfloop transitions, 372 changer transitions 0/954 dead transitions. [2022-11-02 21:11:48,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 954 transitions, 20681 flow [2022-11-02 21:11:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:11:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:11:48,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2814 transitions. [2022-11-02 21:11:48,175 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5696356275303643 [2022-11-02 21:11:48,175 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2814 transitions. [2022-11-02 21:11:48,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2814 transitions. [2022-11-02 21:11:48,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:48,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2814 transitions. [2022-11-02 21:11:48,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.7) internal successors, (2814), 20 states have internal predecessors, (2814), 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) [2022-11-02 21:11:48,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:48,190 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:48,191 INFO L175 Difference]: Start difference. First operand has 382 places, 766 transitions, 16475 flow. Second operand 20 states and 2814 transitions. [2022-11-02 21:11:48,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 954 transitions, 20681 flow [2022-11-02 21:11:48,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 954 transitions, 20512 flow, removed 43 selfloop flow, removed 11 redundant places. [2022-11-02 21:11:49,000 INFO L231 Difference]: Finished difference. Result has 399 places, 824 transitions, 19576 flow [2022-11-02 21:11:49,001 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=16329, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19576, PETRI_PLACES=399, PETRI_TRANSITIONS=824} [2022-11-02 21:11:49,001 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 154 predicate places. [2022-11-02 21:11:49,001 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 824 transitions, 19576 flow [2022-11-02 21:11:49,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:49,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:49,002 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] [2022-11-02 21:11:49,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:11:49,003 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:49,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2005297925, now seen corresponding path program 11 times [2022-11-02 21:11:49,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:49,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576835402] [2022-11-02 21:11:49,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:49,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:50,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:50,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576835402] [2022-11-02 21:11:50,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576835402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:50,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:50,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:50,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566097658] [2022-11-02 21:11:50,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:50,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:50,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:50,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:50,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:50,538 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:50,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 824 transitions, 19576 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:50,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:50,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:50,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:55,996 INFO L130 PetriNetUnfolder]: 3020/5922 cut-off events. [2022-11-02 21:11:55,996 INFO L131 PetriNetUnfolder]: For 215351/215463 co-relation queries the response was YES. [2022-11-02 21:11:56,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58730 conditions, 5922 events. 3020/5922 cut-off events. For 215351/215463 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 40371 event pairs, 549 based on Foata normal form. 8/5891 useless extension candidates. Maximal degree in co-relation 58378. Up to 2908 conditions per place. [2022-11-02 21:11:56,109 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 567 selfloop transitions, 359 changer transitions 0/1037 dead transitions. [2022-11-02 21:11:56,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 1037 transitions, 24124 flow [2022-11-02 21:11:56,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:11:56,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:11:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-02 21:11:56,118 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-02 21:11:56,118 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-02 21:11:56,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-02 21:11:56,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:56,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-02 21:11:56,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 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) [2022-11-02 21:11:56,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:56,133 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:11:56,134 INFO L175 Difference]: Start difference. First operand has 399 places, 824 transitions, 19576 flow. Second operand 20 states and 2821 transitions. [2022-11-02 21:11:56,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 1037 transitions, 24124 flow [2022-11-02 21:11:57,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 1037 transitions, 23773 flow, removed 127 selfloop flow, removed 10 redundant places. [2022-11-02 21:11:57,144 INFO L231 Difference]: Finished difference. Result has 412 places, 842 transitions, 20811 flow [2022-11-02 21:11:57,146 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=19254, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20811, PETRI_PLACES=412, PETRI_TRANSITIONS=842} [2022-11-02 21:11:57,146 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 167 predicate places. [2022-11-02 21:11:57,147 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 842 transitions, 20811 flow [2022-11-02 21:11:57,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:57,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:57,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:57,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:11:57,148 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:11:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:57,149 INFO L85 PathProgramCache]: Analyzing trace with hash 376393705, now seen corresponding path program 12 times [2022-11-02 21:11:57,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:57,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535803460] [2022-11-02 21:11:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:57,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:58,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:58,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535803460] [2022-11-02 21:11:58,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535803460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:58,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:58,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:11:58,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101673315] [2022-11-02 21:11:58,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:58,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:11:58,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:58,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:11:58,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:11:58,718 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:11:58,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 842 transitions, 20811 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:11:58,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:58,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:11:58,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:04,642 INFO L130 PetriNetUnfolder]: 3229/6249 cut-off events. [2022-11-02 21:12:04,642 INFO L131 PetriNetUnfolder]: For 240820/240820 co-relation queries the response was YES. [2022-11-02 21:12:04,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65619 conditions, 6249 events. 3229/6249 cut-off events. For 240820/240820 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 43462 event pairs, 184 based on Foata normal form. 8/6226 useless extension candidates. Maximal degree in co-relation 65263. Up to 3632 conditions per place. [2022-11-02 21:12:04,985 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 510 selfloop transitions, 415 changer transitions 0/1036 dead transitions. [2022-11-02 21:12:04,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 1036 transitions, 26005 flow [2022-11-02 21:12:04,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 21:12:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 21:12:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2552 transitions. [2022-11-02 21:12:04,991 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5739991003148898 [2022-11-02 21:12:04,991 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2552 transitions. [2022-11-02 21:12:04,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2552 transitions. [2022-11-02 21:12:04,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:04,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2552 transitions. [2022-11-02 21:12:04,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.77777777777777) internal successors, (2552), 18 states have internal predecessors, (2552), 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) [2022-11-02 21:12:05,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 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) [2022-11-02 21:12:05,011 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 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) [2022-11-02 21:12:05,011 INFO L175 Difference]: Start difference. First operand has 412 places, 842 transitions, 20811 flow. Second operand 18 states and 2552 transitions. [2022-11-02 21:12:05,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 1036 transitions, 26005 flow [2022-11-02 21:12:06,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 1036 transitions, 25768 flow, removed 20 selfloop flow, removed 14 redundant places. [2022-11-02 21:12:06,692 INFO L231 Difference]: Finished difference. Result has 423 places, 911 transitions, 24825 flow [2022-11-02 21:12:06,693 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20592, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=842, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=350, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=24825, PETRI_PLACES=423, PETRI_TRANSITIONS=911} [2022-11-02 21:12:06,694 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 178 predicate places. [2022-11-02 21:12:06,694 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 911 transitions, 24825 flow [2022-11-02 21:12:06,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:06,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:06,695 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] [2022-11-02 21:12:06,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:12:06,695 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:12:06,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:06,696 INFO L85 PathProgramCache]: Analyzing trace with hash -204753985, now seen corresponding path program 13 times [2022-11-02 21:12:06,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:06,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730654827] [2022-11-02 21:12:06,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:06,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:08,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:08,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730654827] [2022-11-02 21:12:08,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730654827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:08,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:08,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:12:08,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641947958] [2022-11-02 21:12:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:08,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:12:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:08,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:12:08,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:08,895 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:12:08,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 911 transitions, 24825 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:08,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:08,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:12:08,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:16,143 INFO L130 PetriNetUnfolder]: 3416/6624 cut-off events. [2022-11-02 21:12:16,143 INFO L131 PetriNetUnfolder]: For 301565/301593 co-relation queries the response was YES. [2022-11-02 21:12:16,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73386 conditions, 6624 events. 3416/6624 cut-off events. For 301565/301593 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 46164 event pairs, 254 based on Foata normal form. 8/6600 useless extension candidates. Maximal degree in co-relation 73022. Up to 3849 conditions per place. [2022-11-02 21:12:16,288 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 585 selfloop transitions, 434 changer transitions 0/1130 dead transitions. [2022-11-02 21:12:16,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1130 transitions, 30649 flow [2022-11-02 21:12:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:12:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:12:16,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-02 21:12:16,294 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-02 21:12:16,294 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-02 21:12:16,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-02 21:12:16,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:16,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-02 21:12:16,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 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) [2022-11-02 21:12:16,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:12:16,376 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:12:16,376 INFO L175 Difference]: Start difference. First operand has 423 places, 911 transitions, 24825 flow. Second operand 20 states and 2818 transitions. [2022-11-02 21:12:16,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1130 transitions, 30649 flow [2022-11-02 21:12:18,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 1130 transitions, 30432 flow, removed 79 selfloop flow, removed 9 redundant places. [2022-11-02 21:12:18,239 INFO L231 Difference]: Finished difference. Result has 441 places, 977 transitions, 28484 flow [2022-11-02 21:12:18,241 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=24617, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=376, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=28484, PETRI_PLACES=441, PETRI_TRANSITIONS=977} [2022-11-02 21:12:18,242 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 196 predicate places. [2022-11-02 21:12:18,242 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 977 transitions, 28484 flow [2022-11-02 21:12:18,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:18,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:18,243 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] [2022-11-02 21:12:18,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 21:12:18,244 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:12:18,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash 278243109, now seen corresponding path program 14 times [2022-11-02 21:12:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:18,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421849617] [2022-11-02 21:12:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:18,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:20,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:20,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421849617] [2022-11-02 21:12:20,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421849617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:20,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:20,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:12:20,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480356349] [2022-11-02 21:12:20,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:20,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:12:20,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:20,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:12:20,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:20,581 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:12:20,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 977 transitions, 28484 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:20,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:20,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:12:20,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:28,866 INFO L130 PetriNetUnfolder]: 3624/6938 cut-off events. [2022-11-02 21:12:28,867 INFO L131 PetriNetUnfolder]: For 365272/365314 co-relation queries the response was YES. [2022-11-02 21:12:28,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81928 conditions, 6938 events. 3624/6938 cut-off events. For 365272/365314 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 47843 event pairs, 722 based on Foata normal form. 8/6908 useless extension candidates. Maximal degree in co-relation 81556. Up to 3884 conditions per place. [2022-11-02 21:12:29,009 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 539 selfloop transitions, 548 changer transitions 0/1198 dead transitions. [2022-11-02 21:12:29,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 1198 transitions, 34950 flow [2022-11-02 21:12:29,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:12:29,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:12:29,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2814 transitions. [2022-11-02 21:12:29,014 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5696356275303643 [2022-11-02 21:12:29,014 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2814 transitions. [2022-11-02 21:12:29,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2814 transitions. [2022-11-02 21:12:29,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:29,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2814 transitions. [2022-11-02 21:12:29,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.7) internal successors, (2814), 20 states have internal predecessors, (2814), 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) [2022-11-02 21:12:29,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:12:29,026 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:12:29,026 INFO L175 Difference]: Start difference. First operand has 441 places, 977 transitions, 28484 flow. Second operand 20 states and 2814 transitions. [2022-11-02 21:12:29,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 1198 transitions, 34950 flow [2022-11-02 21:12:31,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1198 transitions, 34579 flow, removed 169 selfloop flow, removed 8 redundant places. [2022-11-02 21:12:31,580 INFO L231 Difference]: Finished difference. Result has 462 places, 1070 transitions, 33342 flow [2022-11-02 21:12:31,581 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=28113, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=977, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=459, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=33342, PETRI_PLACES=462, PETRI_TRANSITIONS=1070} [2022-11-02 21:12:31,581 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 217 predicate places. [2022-11-02 21:12:31,581 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 1070 transitions, 33342 flow [2022-11-02 21:12:31,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:31,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:31,582 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] [2022-11-02 21:12:31,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 21:12:31,582 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:12:31,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:31,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1170721523, now seen corresponding path program 15 times [2022-11-02 21:12:31,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:31,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343920847] [2022-11-02 21:12:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:31,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:33,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:33,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343920847] [2022-11-02 21:12:33,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343920847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:33,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:33,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:12:33,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158125476] [2022-11-02 21:12:33,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:33,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:12:33,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:33,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:12:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:33,387 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:12:33,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 1070 transitions, 33342 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:33,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:33,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:12:33,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:41,925 INFO L130 PetriNetUnfolder]: 3824/7423 cut-off events. [2022-11-02 21:12:41,925 INFO L131 PetriNetUnfolder]: For 430396/430438 co-relation queries the response was YES. [2022-11-02 21:12:42,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90926 conditions, 7423 events. 3824/7423 cut-off events. For 430396/430438 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52711 event pairs, 809 based on Foata normal form. 8/7392 useless extension candidates. Maximal degree in co-relation 90544. Up to 4419 conditions per place. [2022-11-02 21:12:42,192 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 669 selfloop transitions, 502 changer transitions 0/1282 dead transitions. [2022-11-02 21:12:42,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 1282 transitions, 39570 flow [2022-11-02 21:12:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:12:42,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:12:42,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2820 transitions. [2022-11-02 21:12:42,196 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5708502024291497 [2022-11-02 21:12:42,197 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2820 transitions. [2022-11-02 21:12:42,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2820 transitions. [2022-11-02 21:12:42,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:42,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2820 transitions. [2022-11-02 21:12:42,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 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) [2022-11-02 21:12:42,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:12:42,207 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:12:42,207 INFO L175 Difference]: Start difference. First operand has 462 places, 1070 transitions, 33342 flow. Second operand 20 states and 2820 transitions. [2022-11-02 21:12:42,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 1282 transitions, 39570 flow [2022-11-02 21:12:44,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1282 transitions, 39068 flow, removed 238 selfloop flow, removed 8 redundant places. [2022-11-02 21:12:44,879 INFO L231 Difference]: Finished difference. Result has 481 places, 1140 transitions, 37803 flow [2022-11-02 21:12:44,880 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=32846, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=439, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37803, PETRI_PLACES=481, PETRI_TRANSITIONS=1140} [2022-11-02 21:12:44,881 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 236 predicate places. [2022-11-02 21:12:44,881 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 1140 transitions, 37803 flow [2022-11-02 21:12:44,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:44,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:44,882 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] [2022-11-02 21:12:44,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 21:12:44,882 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:12:44,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:44,883 INFO L85 PathProgramCache]: Analyzing trace with hash -552331723, now seen corresponding path program 16 times [2022-11-02 21:12:44,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:44,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992059876] [2022-11-02 21:12:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:44,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:46,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992059876] [2022-11-02 21:12:46,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992059876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:46,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:46,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:12:46,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746814404] [2022-11-02 21:12:46,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:46,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:12:46,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:46,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:12:46,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:46,556 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:12:46,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 1140 transitions, 37803 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:46,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:46,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:12:46,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:55,155 INFO L130 PetriNetUnfolder]: 3870/7615 cut-off events. [2022-11-02 21:12:55,155 INFO L131 PetriNetUnfolder]: For 469019/469059 co-relation queries the response was YES. [2022-11-02 21:12:55,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95224 conditions, 7615 events. 3870/7615 cut-off events. For 469019/469059 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 55548 event pairs, 542 based on Foata normal form. 10/7592 useless extension candidates. Maximal degree in co-relation 94834. Up to 4479 conditions per place. [2022-11-02 21:12:55,362 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 676 selfloop transitions, 511 changer transitions 0/1298 dead transitions. [2022-11-02 21:12:55,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1298 transitions, 42108 flow [2022-11-02 21:12:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 21:12:55,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 21:12:55,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2682 transitions. [2022-11-02 21:12:55,367 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.571489452375879 [2022-11-02 21:12:55,367 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2682 transitions. [2022-11-02 21:12:55,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2682 transitions. [2022-11-02 21:12:55,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:55,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2682 transitions. [2022-11-02 21:12:55,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.1578947368421) internal successors, (2682), 19 states have internal predecessors, (2682), 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) [2022-11-02 21:12:55,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 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) [2022-11-02 21:12:55,377 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 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) [2022-11-02 21:12:55,377 INFO L175 Difference]: Start difference. First operand has 481 places, 1140 transitions, 37803 flow. Second operand 19 states and 2682 transitions. [2022-11-02 21:12:55,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1298 transitions, 42108 flow [2022-11-02 21:12:59,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1298 transitions, 41782 flow, removed 116 selfloop flow, removed 11 redundant places. [2022-11-02 21:12:59,437 INFO L231 Difference]: Finished difference. Result has 494 places, 1162 transitions, 40245 flow [2022-11-02 21:12:59,438 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=37478, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=40245, PETRI_PLACES=494, PETRI_TRANSITIONS=1162} [2022-11-02 21:12:59,439 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 249 predicate places. [2022-11-02 21:12:59,439 INFO L495 AbstractCegarLoop]: Abstraction has has 494 places, 1162 transitions, 40245 flow [2022-11-02 21:12:59,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:12:59,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:59,440 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] [2022-11-02 21:12:59,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 21:12:59,440 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:12:59,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2140391787, now seen corresponding path program 17 times [2022-11-02 21:12:59,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:59,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722766781] [2022-11-02 21:12:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:59,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:01,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:01,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722766781] [2022-11-02 21:13:01,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722766781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:01,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:01,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:13:01,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147146667] [2022-11-02 21:13:01,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:01,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:13:01,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:01,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:13:01,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:01,254 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:13:01,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 1162 transitions, 40245 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:13:01,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:01,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:13:01,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:09,874 INFO L130 PetriNetUnfolder]: 3931/7740 cut-off events. [2022-11-02 21:13:09,874 INFO L131 PetriNetUnfolder]: For 519918/519932 co-relation queries the response was YES. [2022-11-02 21:13:10,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99965 conditions, 7740 events. 3931/7740 cut-off events. For 519918/519932 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 56972 event pairs, 494 based on Foata normal form. 14/7726 useless extension candidates. Maximal degree in co-relation 99569. Up to 4541 conditions per place. [2022-11-02 21:13:10,118 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 686 selfloop transitions, 537 changer transitions 0/1334 dead transitions. [2022-11-02 21:13:10,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 1334 transitions, 45014 flow [2022-11-02 21:13:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:13:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:13:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-02 21:13:10,124 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-02 21:13:10,124 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-02 21:13:10,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-02 21:13:10,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:10,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-02 21:13:10,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 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) [2022-11-02 21:13:10,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:13:10,136 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:13:10,137 INFO L175 Difference]: Start difference. First operand has 494 places, 1162 transitions, 40245 flow. Second operand 20 states and 2818 transitions. [2022-11-02 21:13:10,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 1334 transitions, 45014 flow [2022-11-02 21:13:14,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 1334 transitions, 44716 flow, removed 77 selfloop flow, removed 11 redundant places. [2022-11-02 21:13:14,267 INFO L231 Difference]: Finished difference. Result has 509 places, 1193 transitions, 43467 flow [2022-11-02 21:13:14,268 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=39948, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=509, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43467, PETRI_PLACES=509, PETRI_TRANSITIONS=1193} [2022-11-02 21:13:14,268 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 264 predicate places. [2022-11-02 21:13:14,269 INFO L495 AbstractCegarLoop]: Abstraction has has 509 places, 1193 transitions, 43467 flow [2022-11-02 21:13:14,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:13:14,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:14,270 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] [2022-11-02 21:13:14,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 21:13:14,270 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:13:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash -291652373, now seen corresponding path program 18 times [2022-11-02 21:13:14,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:14,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239414891] [2022-11-02 21:13:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:14,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:16,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:16,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239414891] [2022-11-02 21:13:16,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239414891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:16,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:16,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:13:16,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028224408] [2022-11-02 21:13:16,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:16,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:13:16,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:16,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:13:16,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:16,232 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:13:16,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 1193 transitions, 43467 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:13:16,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:16,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:13:16,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:26,079 INFO L130 PetriNetUnfolder]: 3985/7840 cut-off events. [2022-11-02 21:13:26,079 INFO L131 PetriNetUnfolder]: For 568164/568178 co-relation queries the response was YES. [2022-11-02 21:13:26,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104911 conditions, 7840 events. 3985/7840 cut-off events. For 568164/568178 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 57956 event pairs, 448 based on Foata normal form. 14/7827 useless extension candidates. Maximal degree in co-relation 104508. Up to 4517 conditions per place. [2022-11-02 21:13:26,294 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 683 selfloop transitions, 559 changer transitions 0/1353 dead transitions. [2022-11-02 21:13:26,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 1353 transitions, 47742 flow [2022-11-02 21:13:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:13:26,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:13:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-02 21:13:26,299 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-02 21:13:26,299 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-02 21:13:26,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-02 21:13:26,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:26,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-02 21:13:26,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 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) [2022-11-02 21:13:26,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:13:26,312 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:13:26,312 INFO L175 Difference]: Start difference. First operand has 509 places, 1193 transitions, 43467 flow. Second operand 20 states and 2818 transitions. [2022-11-02 21:13:26,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 1353 transitions, 47742 flow [2022-11-02 21:13:31,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1353 transitions, 47449 flow, removed 79 selfloop flow, removed 12 redundant places. [2022-11-02 21:13:31,859 INFO L231 Difference]: Finished difference. Result has 521 places, 1215 transitions, 45933 flow [2022-11-02 21:13:31,860 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=43175, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=540, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=45933, PETRI_PLACES=521, PETRI_TRANSITIONS=1215} [2022-11-02 21:13:31,860 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 276 predicate places. [2022-11-02 21:13:31,861 INFO L495 AbstractCegarLoop]: Abstraction has has 521 places, 1215 transitions, 45933 flow [2022-11-02 21:13:31,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:13:31,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:31,862 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] [2022-11-02 21:13:31,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 21:13:31,862 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:13:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:31,862 INFO L85 PathProgramCache]: Analyzing trace with hash -974224961, now seen corresponding path program 19 times [2022-11-02 21:13:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:31,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101608231] [2022-11-02 21:13:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:33,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:33,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101608231] [2022-11-02 21:13:33,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101608231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:33,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:33,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:13:33,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119656977] [2022-11-02 21:13:33,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:33,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:13:33,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:13:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:33,573 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:13:33,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 1215 transitions, 45933 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:13:33,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:33,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:13:33,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:43,562 INFO L130 PetriNetUnfolder]: 4059/7842 cut-off events. [2022-11-02 21:13:43,562 INFO L131 PetriNetUnfolder]: For 635093/635137 co-relation queries the response was YES. [2022-11-02 21:13:43,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110007 conditions, 7842 events. 4059/7842 cut-off events. For 635093/635137 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 56434 event pairs, 813 based on Foata normal form. 10/7814 useless extension candidates. Maximal degree in co-relation 109599. Up to 4683 conditions per place. [2022-11-02 21:13:43,738 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 713 selfloop transitions, 553 changer transitions 0/1377 dead transitions. [2022-11-02 21:13:43,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1377 transitions, 50679 flow [2022-11-02 21:13:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:13:43,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:13:43,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2817 transitions. [2022-11-02 21:13:43,744 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5702429149797571 [2022-11-02 21:13:43,744 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2817 transitions. [2022-11-02 21:13:43,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2817 transitions. [2022-11-02 21:13:43,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:43,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2817 transitions. [2022-11-02 21:13:43,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.85) internal successors, (2817), 20 states have internal predecessors, (2817), 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) [2022-11-02 21:13:43,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:13:43,756 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:13:43,757 INFO L175 Difference]: Start difference. First operand has 521 places, 1215 transitions, 45933 flow. Second operand 20 states and 2817 transitions. [2022-11-02 21:13:43,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1377 transitions, 50679 flow [2022-11-02 21:13:49,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 1377 transitions, 50269 flow, removed 158 selfloop flow, removed 11 redundant places. [2022-11-02 21:13:49,285 INFO L231 Difference]: Finished difference. Result has 534 places, 1240 transitions, 48668 flow [2022-11-02 21:13:49,286 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=45539, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=531, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=48668, PETRI_PLACES=534, PETRI_TRANSITIONS=1240} [2022-11-02 21:13:49,286 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 289 predicate places. [2022-11-02 21:13:49,287 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 1240 transitions, 48668 flow [2022-11-02 21:13:49,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:13:49,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:49,287 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] [2022-11-02 21:13:49,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 21:13:49,287 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:13:49,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:49,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1154976651, now seen corresponding path program 20 times [2022-11-02 21:13:49,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:49,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466886405] [2022-11-02 21:13:49,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:49,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:51,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:51,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:51,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466886405] [2022-11-02 21:13:51,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466886405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:51,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:51,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 21:13:51,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149190589] [2022-11-02 21:13:51,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:51,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:13:51,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:51,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:13:51,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:51,214 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 21:13:51,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 1240 transitions, 48668 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 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) [2022-11-02 21:13:51,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:51,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 21:13:51,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:14:01,619 INFO L130 PetriNetUnfolder]: 4063/7990 cut-off events. [2022-11-02 21:14:01,619 INFO L131 PetriNetUnfolder]: For 673913/673927 co-relation queries the response was YES. [2022-11-02 21:14:01,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113114 conditions, 7990 events. 4063/7990 cut-off events. For 673913/673927 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 59501 event pairs, 466 based on Foata normal form. 14/7977 useless extension candidates. Maximal degree in co-relation 112701. Up to 4635 conditions per place. [2022-11-02 21:14:02,054 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 719 selfloop transitions, 573 changer transitions 0/1403 dead transitions. [2022-11-02 21:14:02,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 1403 transitions, 53430 flow [2022-11-02 21:14:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:14:02,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:14:02,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-02 21:14:02,059 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-02 21:14:02,059 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-02 21:14:02,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-02 21:14:02,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:14:02,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-02 21:14:02,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 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) [2022-11-02 21:14:02,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:14:02,071 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 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) [2022-11-02 21:14:02,072 INFO L175 Difference]: Start difference. First operand has 534 places, 1240 transitions, 48668 flow. Second operand 20 states and 2821 transitions. [2022-11-02 21:14:02,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 1403 transitions, 53430 flow