./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8 --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- 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-e04fb08 [2022-11-16 12:27:35,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:27:35,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:27:35,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:27:35,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:27:35,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:27:35,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:27:35,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:27:35,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:27:35,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:27:35,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:27:35,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:27:35,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:27:35,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:27:35,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:27:35,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:27:35,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:27:35,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:27:35,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:27:35,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:27:35,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:27:35,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:27:35,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:27:35,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:27:35,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:27:35,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:27:35,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:27:35,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:27:35,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:27:35,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:27:35,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:27:35,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:27:35,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:27:35,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:27:35,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:27:35,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:27:35,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:27:35,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:27:35,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:27:35,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:27:35,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:27:35,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:27:35,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:27:35,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:27:35,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:27:35,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:27:35,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:27:35,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:27:35,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:27:35,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:27:35,547 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:27:35,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:27:35,549 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:27:35,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:27:35,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:27:35,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:27:35,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:27:35,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:27:35,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:27:35,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:27:35,551 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:27:35,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:27:35,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:27:35,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:27:35,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:27:35,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:27:35,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:27:35,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:27:35,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:27:35,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:27:35,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:27:35,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:27:35,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:27:35,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:27:35,555 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:27:35,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:27:35,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:27:35,556 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_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-16 12:27:35,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:27:35,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:27:35,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:27:35,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:27:35,935 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:27:35,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-16 12:27:36,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/data/4224d10af/082718224ea34ebe8c9e7171ea63886d/FLAGf54a65dcd [2022-11-16 12:27:36,760 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:27:36,761 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-16 12:27:36,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/data/4224d10af/082718224ea34ebe8c9e7171ea63886d/FLAGf54a65dcd [2022-11-16 12:27:37,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/data/4224d10af/082718224ea34ebe8c9e7171ea63886d [2022-11-16 12:27:37,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:27:37,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:27:37,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:27:37,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:27:37,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:27:37,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:27:37" (1/1) ... [2022-11-16 12:27:37,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0b9709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:37, skipping insertion in model container [2022-11-16 12:27:37,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:27:37" (1/1) ... [2022-11-16 12:27:37,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:27:37,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:27:37,327 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:27:37,964 WARN L229 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_b3172af1-da0d-4da7-b506-7fd7d7ee753b/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-16 12:27:38,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:27:38,028 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:27:38,042 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:27:38,076 WARN L229 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_b3172af1-da0d-4da7-b506-7fd7d7ee753b/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-16 12:27:38,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:27:38,309 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:27:38,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38 WrapperNode [2022-11-16 12:27:38,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:27:38,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:27:38,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:27:38,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:27:38,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,435 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 173 [2022-11-16 12:27:38,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:27:38,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:27:38,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:27:38,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:27:38,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:27:38,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:27:38,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:27:38,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:27:38,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (1/1) ... [2022-11-16 12:27:38,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:27:38,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:27:38,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:27:38,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3172af1-da0d-4da7-b506-7fd7d7ee753b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:27:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:27:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:27:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:27:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:27:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:27:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:27:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:27:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:27:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 12:27:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 12:27:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:27:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:27:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:27:38,657 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:27:39,030 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:27:39,032 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:27:39,557 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:27:39,629 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:27:39,630 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:27:39,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:27:39 BoogieIcfgContainer [2022-11-16 12:27:39,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:27:39,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:27:39,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:27:39,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:27:39,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:27:37" (1/3) ... [2022-11-16 12:27:39,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3a33ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:27:39, skipping insertion in model container [2022-11-16 12:27:39,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:38" (2/3) ... [2022-11-16 12:27:39,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3a33ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:27:39, skipping insertion in model container [2022-11-16 12:27:39,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:27:39" (3/3) ... [2022-11-16 12:27:39,650 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-11-16 12:27:39,664 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:27:39,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:27:39,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-16 12:27:39,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:27:39,758 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:27:39,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 233 transitions, 482 flow [2022-11-16 12:27:39,920 INFO L130 PetriNetUnfolder]: 8/310 cut-off events. [2022-11-16 12:27:39,921 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:27:39,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 310 events. 8/310 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 576 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-11-16 12:27:39,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 233 transitions, 482 flow [2022-11-16 12:27:39,935 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 230 transitions, 472 flow [2022-11-16 12:27:39,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:27:39,980 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;@16d69e83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:27:39,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-16 12:27:39,988 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-16 12:27:39,988 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:27:39,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:39,989 INFO L209 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] [2022-11-16 12:27:39,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:39,995 INFO L85 PathProgramCache]: Analyzing trace with hash 683495268, now seen corresponding path program 1 times [2022-11-16 12:27:40,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:40,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554467143] [2022-11-16 12:27:40,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:40,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:41,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:41,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554467143] [2022-11-16 12:27:41,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554467143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:41,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:41,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:41,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612289943] [2022-11-16 12:27:41,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:41,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:41,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:41,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:41,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:41,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 233 [2022-11-16 12:27:41,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 472 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 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) [2022-11-16 12:27:41,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:41,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 233 [2022-11-16 12:27:41,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:42,084 INFO L130 PetriNetUnfolder]: 754/2065 cut-off events. [2022-11-16 12:27:42,084 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-16 12:27:42,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3427 conditions, 2065 events. 754/2065 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12920 event pairs, 753 based on Foata normal form. 36/1939 useless extension candidates. Maximal degree in co-relation 3064. Up to 1339 conditions per place. [2022-11-16 12:27:42,110 INFO L137 encePairwiseOnDemand]: 217/233 looper letters, 71 selfloop transitions, 5 changer transitions 17/215 dead transitions. [2022-11-16 12:27:42,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 215 transitions, 596 flow [2022-11-16 12:27:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:42,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 934 transitions. [2022-11-16 12:27:42,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6680972818311874 [2022-11-16 12:27:42,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 934 transitions. [2022-11-16 12:27:42,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 934 transitions. [2022-11-16 12:27:42,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:42,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 934 transitions. [2022-11-16 12:27:42,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 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) [2022-11-16 12:27:42,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:42,181 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:42,184 INFO L175 Difference]: Start difference. First operand has 231 places, 230 transitions, 472 flow. Second operand 6 states and 934 transitions. [2022-11-16 12:27:42,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 215 transitions, 596 flow [2022-11-16 12:27:42,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 215 transitions, 588 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:27:42,203 INFO L231 Difference]: Finished difference. Result has 221 places, 198 transitions, 410 flow [2022-11-16 12:27:42,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=221, PETRI_TRANSITIONS=198} [2022-11-16 12:27:42,214 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -10 predicate places. [2022-11-16 12:27:42,214 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 198 transitions, 410 flow [2022-11-16 12:27:42,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 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) [2022-11-16 12:27:42,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:42,217 INFO L209 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] [2022-11-16 12:27:42,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:27:42,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:42,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:42,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1481587897, now seen corresponding path program 1 times [2022-11-16 12:27:42,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:42,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062739462] [2022-11-16 12:27:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:42,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:42,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:42,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062739462] [2022-11-16 12:27:42,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062739462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:42,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:42,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:42,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618894820] [2022-11-16 12:27:42,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:42,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:42,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:42,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:42,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 233 [2022-11-16 12:27:42,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 198 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 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) [2022-11-16 12:27:42,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:42,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 233 [2022-11-16 12:27:42,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:43,905 INFO L130 PetriNetUnfolder]: 730/1783 cut-off events. [2022-11-16 12:27:43,905 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:27:43,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 1783 events. 730/1783 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10726 event pairs, 729 based on Foata normal form. 0/1658 useless extension candidates. Maximal degree in co-relation 3035. Up to 1297 conditions per place. [2022-11-16 12:27:43,918 INFO L137 encePairwiseOnDemand]: 227/233 looper letters, 70 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2022-11-16 12:27:43,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 197 transitions, 558 flow [2022-11-16 12:27:43,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:43,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:43,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2022-11-16 12:27:43,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6595135908440629 [2022-11-16 12:27:43,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 922 transitions. [2022-11-16 12:27:43,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 922 transitions. [2022-11-16 12:27:43,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:43,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 922 transitions. [2022-11-16 12:27:43,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 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) [2022-11-16 12:27:43,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:43,932 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:43,932 INFO L175 Difference]: Start difference. First operand has 221 places, 198 transitions, 410 flow. Second operand 6 states and 922 transitions. [2022-11-16 12:27:43,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 197 transitions, 558 flow [2022-11-16 12:27:43,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 197 transitions, 548 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:27:43,938 INFO L231 Difference]: Finished difference. Result has 203 places, 197 transitions, 408 flow [2022-11-16 12:27:43,939 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=203, PETRI_TRANSITIONS=197} [2022-11-16 12:27:43,940 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -28 predicate places. [2022-11-16 12:27:43,941 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 197 transitions, 408 flow [2022-11-16 12:27:43,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 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) [2022-11-16 12:27:43,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:43,943 INFO L209 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] [2022-11-16 12:27:43,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:27:43,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2035216466, now seen corresponding path program 1 times [2022-11-16 12:27:43,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:43,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852543785] [2022-11-16 12:27:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:44,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:44,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852543785] [2022-11-16 12:27:44,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852543785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:44,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:44,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:44,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610623085] [2022-11-16 12:27:44,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:44,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:44,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:44,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:44,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:44,640 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 233 [2022-11-16 12:27:44,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 197 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 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) [2022-11-16 12:27:44,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:44,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 233 [2022-11-16 12:27:44,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:45,916 INFO L130 PetriNetUnfolder]: 1006/2264 cut-off events. [2022-11-16 12:27:45,916 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:27:45,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 2264 events. 1006/2264 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13868 event pairs, 807 based on Foata normal form. 0/2136 useless extension candidates. Maximal degree in co-relation 3970. Up to 1667 conditions per place. [2022-11-16 12:27:45,934 INFO L137 encePairwiseOnDemand]: 220/233 looper letters, 78 selfloop transitions, 30 changer transitions 0/226 dead transitions. [2022-11-16 12:27:45,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 226 transitions, 682 flow [2022-11-16 12:27:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:45,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2022-11-16 12:27:45,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6573676680972819 [2022-11-16 12:27:45,942 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2022-11-16 12:27:45,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2022-11-16 12:27:45,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:45,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2022-11-16 12:27:45,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 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) [2022-11-16 12:27:45,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:45,952 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:45,953 INFO L175 Difference]: Start difference. First operand has 203 places, 197 transitions, 408 flow. Second operand 6 states and 919 transitions. [2022-11-16 12:27:45,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 226 transitions, 682 flow [2022-11-16 12:27:45,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 226 transitions, 672 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:27:45,960 INFO L231 Difference]: Finished difference. Result has 208 places, 226 transitions, 600 flow [2022-11-16 12:27:45,960 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=208, PETRI_TRANSITIONS=226} [2022-11-16 12:27:45,964 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -23 predicate places. [2022-11-16 12:27:45,964 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 226 transitions, 600 flow [2022-11-16 12:27:45,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 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) [2022-11-16 12:27:45,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:45,966 INFO L209 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] [2022-11-16 12:27:45,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:27:45,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:45,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1340023378, now seen corresponding path program 1 times [2022-11-16 12:27:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:45,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548026982] [2022-11-16 12:27:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:45,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:46,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:46,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548026982] [2022-11-16 12:27:46,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548026982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:46,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:46,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:46,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284724423] [2022-11-16 12:27:46,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:46,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:27:46,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:46,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:27:46,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:27:46,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 233 [2022-11-16 12:27:46,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 226 transitions, 600 flow. Second operand has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 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) [2022-11-16 12:27:46,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:46,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 233 [2022-11-16 12:27:46,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:46,760 INFO L130 PetriNetUnfolder]: 437/1855 cut-off events. [2022-11-16 12:27:46,760 INFO L131 PetriNetUnfolder]: For 493/525 co-relation queries the response was YES. [2022-11-16 12:27:46,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 1855 events. 437/1855 cut-off events. For 493/525 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 12569 event pairs, 252 based on Foata normal form. 0/1751 useless extension candidates. Maximal degree in co-relation 2113. Up to 578 conditions per place. [2022-11-16 12:27:46,776 INFO L137 encePairwiseOnDemand]: 228/233 looper letters, 46 selfloop transitions, 4 changer transitions 0/231 dead transitions. [2022-11-16 12:27:46,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 231 transitions, 710 flow [2022-11-16 12:27:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1215 transitions. [2022-11-16 12:27:46,781 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.869098712446352 [2022-11-16 12:27:46,781 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1215 transitions. [2022-11-16 12:27:46,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1215 transitions. [2022-11-16 12:27:46,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:46,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1215 transitions. [2022-11-16 12:27:46,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.5) internal successors, (1215), 6 states have internal predecessors, (1215), 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) [2022-11-16 12:27:46,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:46,796 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:46,796 INFO L175 Difference]: Start difference. First operand has 208 places, 226 transitions, 600 flow. Second operand 6 states and 1215 transitions. [2022-11-16 12:27:46,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 231 transitions, 710 flow [2022-11-16 12:27:46,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 231 transitions, 710 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:46,813 INFO L231 Difference]: Finished difference. Result has 217 places, 229 transitions, 629 flow [2022-11-16 12:27:46,814 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=629, PETRI_PLACES=217, PETRI_TRANSITIONS=229} [2022-11-16 12:27:46,815 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -14 predicate places. [2022-11-16 12:27:46,816 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 229 transitions, 629 flow [2022-11-16 12:27:46,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 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) [2022-11-16 12:27:46,817 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:46,817 INFO L209 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] [2022-11-16 12:27:46,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:27:46,818 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:46,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:46,819 INFO L85 PathProgramCache]: Analyzing trace with hash 732312171, now seen corresponding path program 1 times [2022-11-16 12:27:46,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:46,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897720422] [2022-11-16 12:27:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:47,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:47,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897720422] [2022-11-16 12:27:47,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897720422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:47,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:47,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:47,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435811359] [2022-11-16 12:27:47,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:47,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:47,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:47,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:47,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:47,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 233 [2022-11-16 12:27:47,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 229 transitions, 629 flow. Second operand has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 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) [2022-11-16 12:27:47,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:47,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 233 [2022-11-16 12:27:47,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:48,796 INFO L130 PetriNetUnfolder]: 1135/2475 cut-off events. [2022-11-16 12:27:48,797 INFO L131 PetriNetUnfolder]: For 843/849 co-relation queries the response was YES. [2022-11-16 12:27:48,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6056 conditions, 2475 events. 1135/2475 cut-off events. For 843/849 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 14767 event pairs, 741 based on Foata normal form. 0/2370 useless extension candidates. Maximal degree in co-relation 5953. Up to 1872 conditions per place. [2022-11-16 12:27:48,823 INFO L137 encePairwiseOnDemand]: 220/233 looper letters, 106 selfloop transitions, 30 changer transitions 0/258 dead transitions. [2022-11-16 12:27:48,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 258 transitions, 1007 flow [2022-11-16 12:27:48,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:48,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2022-11-16 12:27:48,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6573676680972819 [2022-11-16 12:27:48,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2022-11-16 12:27:48,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2022-11-16 12:27:48,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:48,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2022-11-16 12:27:48,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 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) [2022-11-16 12:27:48,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:48,837 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:48,837 INFO L175 Difference]: Start difference. First operand has 217 places, 229 transitions, 629 flow. Second operand 6 states and 919 transitions. [2022-11-16 12:27:48,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 258 transitions, 1007 flow [2022-11-16 12:27:48,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 258 transitions, 1006 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:27:48,849 INFO L231 Difference]: Finished difference. Result has 226 places, 258 transitions, 878 flow [2022-11-16 12:27:48,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=226, PETRI_TRANSITIONS=258} [2022-11-16 12:27:48,853 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -5 predicate places. [2022-11-16 12:27:48,854 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 258 transitions, 878 flow [2022-11-16 12:27:48,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 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) [2022-11-16 12:27:48,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:48,855 INFO L209 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] [2022-11-16 12:27:48,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:27:48,855 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:48,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:48,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1678995988, now seen corresponding path program 1 times [2022-11-16 12:27:48,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:48,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380797708] [2022-11-16 12:27:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:48,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:49,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380797708] [2022-11-16 12:27:49,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380797708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:49,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:49,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:49,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336212599] [2022-11-16 12:27:49,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:49,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:49,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:49,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:49,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:49,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 233 [2022-11-16 12:27:49,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 258 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2022-11-16 12:27:49,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:49,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 233 [2022-11-16 12:27:49,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:50,750 INFO L130 PetriNetUnfolder]: 1126/2631 cut-off events. [2022-11-16 12:27:50,750 INFO L131 PetriNetUnfolder]: For 2174/2336 co-relation queries the response was YES. [2022-11-16 12:27:50,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7672 conditions, 2631 events. 1126/2631 cut-off events. For 2174/2336 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 16309 event pairs, 530 based on Foata normal form. 0/2534 useless extension candidates. Maximal degree in co-relation 5550. Up to 1779 conditions per place. [2022-11-16 12:27:50,782 INFO L137 encePairwiseOnDemand]: 222/233 looper letters, 154 selfloop transitions, 22 changer transitions 0/307 dead transitions. [2022-11-16 12:27:50,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 307 transitions, 1430 flow [2022-11-16 12:27:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 991 transitions. [2022-11-16 12:27:50,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7088698140200286 [2022-11-16 12:27:50,787 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 991 transitions. [2022-11-16 12:27:50,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 991 transitions. [2022-11-16 12:27:50,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:50,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 991 transitions. [2022-11-16 12:27:50,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 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) [2022-11-16 12:27:50,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:50,798 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:50,798 INFO L175 Difference]: Start difference. First operand has 226 places, 258 transitions, 878 flow. Second operand 6 states and 991 transitions. [2022-11-16 12:27:50,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 307 transitions, 1430 flow [2022-11-16 12:27:50,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 307 transitions, 1382 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:50,822 INFO L231 Difference]: Finished difference. Result has 236 places, 279 transitions, 1048 flow [2022-11-16 12:27:50,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1048, PETRI_PLACES=236, PETRI_TRANSITIONS=279} [2022-11-16 12:27:50,826 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 5 predicate places. [2022-11-16 12:27:50,826 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 279 transitions, 1048 flow [2022-11-16 12:27:50,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2022-11-16 12:27:50,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:50,827 INFO L209 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] [2022-11-16 12:27:50,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:27:50,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:50,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2086448423, now seen corresponding path program 1 times [2022-11-16 12:27:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:50,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039138149] [2022-11-16 12:27:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:51,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:51,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039138149] [2022-11-16 12:27:51,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039138149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:51,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:51,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:51,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557363676] [2022-11-16 12:27:51,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:51,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:51,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:51,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:51,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:51,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 233 [2022-11-16 12:27:51,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 279 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 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) [2022-11-16 12:27:51,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:51,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 233 [2022-11-16 12:27:51,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:52,777 INFO L130 PetriNetUnfolder]: 1451/3262 cut-off events. [2022-11-16 12:27:52,777 INFO L131 PetriNetUnfolder]: For 3967/3993 co-relation queries the response was YES. [2022-11-16 12:27:52,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 3262 events. 1451/3262 cut-off events. For 3967/3993 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 20416 event pairs, 516 based on Foata normal form. 0/3174 useless extension candidates. Maximal degree in co-relation 8939. Up to 2193 conditions per place. [2022-11-16 12:27:52,821 INFO L137 encePairwiseOnDemand]: 217/233 looper letters, 162 selfloop transitions, 27 changer transitions 0/314 dead transitions. [2022-11-16 12:27:52,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 314 transitions, 1630 flow [2022-11-16 12:27:52,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:52,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 936 transitions. [2022-11-16 12:27:52,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6695278969957081 [2022-11-16 12:27:52,826 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 936 transitions. [2022-11-16 12:27:52,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 936 transitions. [2022-11-16 12:27:52,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:52,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 936 transitions. [2022-11-16 12:27:52,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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) [2022-11-16 12:27:52,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:52,835 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:52,835 INFO L175 Difference]: Start difference. First operand has 236 places, 279 transitions, 1048 flow. Second operand 6 states and 936 transitions. [2022-11-16 12:27:52,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 314 transitions, 1630 flow [2022-11-16 12:27:52,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 314 transitions, 1630 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:52,854 INFO L231 Difference]: Finished difference. Result has 245 places, 299 transitions, 1318 flow [2022-11-16 12:27:52,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=245, PETRI_TRANSITIONS=299} [2022-11-16 12:27:52,856 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 14 predicate places. [2022-11-16 12:27:52,857 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 299 transitions, 1318 flow [2022-11-16 12:27:52,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 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) [2022-11-16 12:27:52,858 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:52,858 INFO L209 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] [2022-11-16 12:27:52,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:27:52,859 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:52,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:52,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1548913032, now seen corresponding path program 1 times [2022-11-16 12:27:52,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:52,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336303364] [2022-11-16 12:27:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:52,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:53,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:53,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336303364] [2022-11-16 12:27:53,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336303364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:53,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:53,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:53,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211655521] [2022-11-16 12:27:53,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:53,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:27:53,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:27:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:27:53,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 233 [2022-11-16 12:27:53,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 299 transitions, 1318 flow. Second operand has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 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) [2022-11-16 12:27:53,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:53,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 233 [2022-11-16 12:27:53,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:53,577 INFO L130 PetriNetUnfolder]: 300/1086 cut-off events. [2022-11-16 12:27:53,579 INFO L131 PetriNetUnfolder]: For 2110/2158 co-relation queries the response was YES. [2022-11-16 12:27:53,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 1086 events. 300/1086 cut-off events. For 2110/2158 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5649 event pairs, 15 based on Foata normal form. 16/1082 useless extension candidates. Maximal degree in co-relation 3040. Up to 344 conditions per place. [2022-11-16 12:27:53,599 INFO L137 encePairwiseOnDemand]: 228/233 looper letters, 61 selfloop transitions, 4 changer transitions 1/243 dead transitions. [2022-11-16 12:27:53,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 243 transitions, 1104 flow [2022-11-16 12:27:53,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2022-11-16 12:27:53,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8855507868383404 [2022-11-16 12:27:53,604 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2022-11-16 12:27:53,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2022-11-16 12:27:53,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:53,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2022-11-16 12:27:53,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 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) [2022-11-16 12:27:53,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:53,616 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 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) [2022-11-16 12:27:53,616 INFO L175 Difference]: Start difference. First operand has 245 places, 299 transitions, 1318 flow. Second operand 6 states and 1238 transitions. [2022-11-16 12:27:53,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 243 transitions, 1104 flow [2022-11-16 12:27:53,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 243 transitions, 1032 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-11-16 12:27:53,628 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 701 flow [2022-11-16 12:27:53,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=701, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2022-11-16 12:27:53,631 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -7 predicate places. [2022-11-16 12:27:53,631 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 701 flow [2022-11-16 12:27:53,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 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) [2022-11-16 12:27:53,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:53,632 INFO L209 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] [2022-11-16 12:27:53,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:27:53,633 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:27:53,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1384163158, now seen corresponding path program 1 times [2022-11-16 12:27:53,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:53,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366219602] [2022-11-16 12:27:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:53,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:56,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:56,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366219602] [2022-11-16 12:27:56,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366219602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:56,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:56,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:27:56,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873212460] [2022-11-16 12:27:56,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:56,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:27:56,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:56,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:27:56,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:27:56,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:27:56,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 701 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:27:56,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:56,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:27:56,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:01,163 INFO L130 PetriNetUnfolder]: 1004/2176 cut-off events. [2022-11-16 12:28:01,163 INFO L131 PetriNetUnfolder]: For 3363/3363 co-relation queries the response was YES. [2022-11-16 12:28:01,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7319 conditions, 2176 events. 1004/2176 cut-off events. For 3363/3363 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11562 event pairs, 326 based on Foata normal form. 8/2143 useless extension candidates. Maximal degree in co-relation 7068. Up to 1022 conditions per place. [2022-11-16 12:28:01,182 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 207 selfloop transitions, 106 changer transitions 0/420 dead transitions. [2022-11-16 12:28:01,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 420 transitions, 2327 flow [2022-11-16 12:28:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 12:28:01,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 12:28:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3745 transitions. [2022-11-16 12:28:01,236 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5740343347639485 [2022-11-16 12:28:01,236 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3745 transitions. [2022-11-16 12:28:01,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3745 transitions. [2022-11-16 12:28:01,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:01,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3745 transitions. [2022-11-16 12:28:01,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 133.75) internal successors, (3745), 28 states have internal predecessors, (3745), 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) [2022-11-16 12:28:01,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 233.0) internal successors, (6757), 29 states have internal predecessors, (6757), 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) [2022-11-16 12:28:01,265 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 233.0) internal successors, (6757), 29 states have internal predecessors, (6757), 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) [2022-11-16 12:28:01,265 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 701 flow. Second operand 28 states and 3745 transitions. [2022-11-16 12:28:01,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 420 transitions, 2327 flow [2022-11-16 12:28:01,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 420 transitions, 2299 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-16 12:28:01,284 INFO L231 Difference]: Finished difference. Result has 261 places, 299 transitions, 1675 flow [2022-11-16 12:28:01,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1675, PETRI_PLACES=261, PETRI_TRANSITIONS=299} [2022-11-16 12:28:01,286 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 30 predicate places. [2022-11-16 12:28:01,286 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 299 transitions, 1675 flow [2022-11-16 12:28:01,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:01,287 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:01,288 INFO L209 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] [2022-11-16 12:28:01,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:28:01,288 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:01,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash -691633080, now seen corresponding path program 2 times [2022-11-16 12:28:01,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:01,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206813890] [2022-11-16 12:28:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:04,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:04,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:04,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206813890] [2022-11-16 12:28:04,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206813890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:04,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:04,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:04,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572421934] [2022-11-16 12:28:04,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:04,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:04,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:04,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:04,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:04,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:04,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 299 transitions, 1675 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:04,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:04,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:04,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:07,120 INFO L130 PetriNetUnfolder]: 1092/2226 cut-off events. [2022-11-16 12:28:07,120 INFO L131 PetriNetUnfolder]: For 8035/8041 co-relation queries the response was YES. [2022-11-16 12:28:07,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10034 conditions, 2226 events. 1092/2226 cut-off events. For 8035/8041 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 11861 event pairs, 59 based on Foata normal form. 8/2207 useless extension candidates. Maximal degree in co-relation 9751. Up to 868 conditions per place. [2022-11-16 12:28:07,147 INFO L137 encePairwiseOnDemand]: 214/233 looper letters, 331 selfloop transitions, 96 changer transitions 0/534 dead transitions. [2022-11-16 12:28:07,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 534 transitions, 4243 flow [2022-11-16 12:28:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:07,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2711 transitions. [2022-11-16 12:28:07,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5817596566523605 [2022-11-16 12:28:07,155 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2711 transitions. [2022-11-16 12:28:07,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2711 transitions. [2022-11-16 12:28:07,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:07,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2711 transitions. [2022-11-16 12:28:07,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.55) internal successors, (2711), 20 states have internal predecessors, (2711), 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) [2022-11-16 12:28:07,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:07,175 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:07,175 INFO L175 Difference]: Start difference. First operand has 261 places, 299 transitions, 1675 flow. Second operand 20 states and 2711 transitions. [2022-11-16 12:28:07,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 534 transitions, 4243 flow [2022-11-16 12:28:07,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 534 transitions, 4202 flow, removed 15 selfloop flow, removed 6 redundant places. [2022-11-16 12:28:07,227 INFO L231 Difference]: Finished difference. Result has 283 places, 362 transitions, 2691 flow [2022-11-16 12:28:07,228 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=1640, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2691, PETRI_PLACES=283, PETRI_TRANSITIONS=362} [2022-11-16 12:28:07,228 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 52 predicate places. [2022-11-16 12:28:07,229 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 362 transitions, 2691 flow [2022-11-16 12:28:07,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:07,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:07,230 INFO L209 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] [2022-11-16 12:28:07,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:28:07,230 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:07,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:07,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1881152184, now seen corresponding path program 3 times [2022-11-16 12:28:07,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:07,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282597434] [2022-11-16 12:28:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:07,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:09,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:09,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282597434] [2022-11-16 12:28:09,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282597434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:09,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:09,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:09,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318756540] [2022-11-16 12:28:09,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:09,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:09,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:09,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:09,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:09,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:09,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 362 transitions, 2691 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:09,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:09,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:09,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:12,766 INFO L130 PetriNetUnfolder]: 1176/2386 cut-off events. [2022-11-16 12:28:12,766 INFO L131 PetriNetUnfolder]: For 15842/15848 co-relation queries the response was YES. [2022-11-16 12:28:12,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12939 conditions, 2386 events. 1176/2386 cut-off events. For 15842/15848 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12718 event pairs, 106 based on Foata normal form. 8/2358 useless extension candidates. Maximal degree in co-relation 12641. Up to 1407 conditions per place. [2022-11-16 12:28:12,793 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 307 selfloop transitions, 112 changer transitions 0/526 dead transitions. [2022-11-16 12:28:12,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 526 transitions, 4834 flow [2022-11-16 12:28:12,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:28:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 12:28:12,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2327 transitions. [2022-11-16 12:28:12,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5874779096187831 [2022-11-16 12:28:12,800 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2327 transitions. [2022-11-16 12:28:12,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2327 transitions. [2022-11-16 12:28:12,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:12,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2327 transitions. [2022-11-16 12:28:12,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 136.88235294117646) internal successors, (2327), 17 states have internal predecessors, (2327), 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) [2022-11-16 12:28:12,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 233.0) internal successors, (4194), 18 states have internal predecessors, (4194), 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) [2022-11-16 12:28:12,815 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 233.0) internal successors, (4194), 18 states have internal predecessors, (4194), 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) [2022-11-16 12:28:12,816 INFO L175 Difference]: Start difference. First operand has 283 places, 362 transitions, 2691 flow. Second operand 17 states and 2327 transitions. [2022-11-16 12:28:12,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 526 transitions, 4834 flow [2022-11-16 12:28:12,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 526 transitions, 4717 flow, removed 27 selfloop flow, removed 9 redundant places. [2022-11-16 12:28:12,905 INFO L231 Difference]: Finished difference. Result has 298 places, 416 transitions, 3892 flow [2022-11-16 12:28:12,906 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=2604, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3892, PETRI_PLACES=298, PETRI_TRANSITIONS=416} [2022-11-16 12:28:12,906 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 67 predicate places. [2022-11-16 12:28:12,907 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 416 transitions, 3892 flow [2022-11-16 12:28:12,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:12,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:12,907 INFO L209 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] [2022-11-16 12:28:12,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:28:12,908 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:12,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:12,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1546345088, now seen corresponding path program 4 times [2022-11-16 12:28:12,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:12,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079619370] [2022-11-16 12:28:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:12,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:15,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:15,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079619370] [2022-11-16 12:28:15,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079619370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:15,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:15,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:15,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684112536] [2022-11-16 12:28:15,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:15,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:15,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:15,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:15,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:15,142 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:15,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 416 transitions, 3892 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:15,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:15,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:15,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:18,037 INFO L130 PetriNetUnfolder]: 1398/2828 cut-off events. [2022-11-16 12:28:18,037 INFO L131 PetriNetUnfolder]: For 26793/26853 co-relation queries the response was YES. [2022-11-16 12:28:18,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17188 conditions, 2828 events. 1398/2828 cut-off events. For 26793/26853 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 15696 event pairs, 222 based on Foata normal form. 8/2787 useless extension candidates. Maximal degree in co-relation 16877. Up to 1238 conditions per place. [2022-11-16 12:28:18,072 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 365 selfloop transitions, 170 changer transitions 0/642 dead transitions. [2022-11-16 12:28:18,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 642 transitions, 7486 flow [2022-11-16 12:28:18,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2717 transitions. [2022-11-16 12:28:18,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5830472103004292 [2022-11-16 12:28:18,079 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2717 transitions. [2022-11-16 12:28:18,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2717 transitions. [2022-11-16 12:28:18,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:18,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2717 transitions. [2022-11-16 12:28:18,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.85) internal successors, (2717), 20 states have internal predecessors, (2717), 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) [2022-11-16 12:28:18,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:18,097 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:18,098 INFO L175 Difference]: Start difference. First operand has 298 places, 416 transitions, 3892 flow. Second operand 20 states and 2717 transitions. [2022-11-16 12:28:18,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 642 transitions, 7486 flow [2022-11-16 12:28:18,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 642 transitions, 7319 flow, removed 68 selfloop flow, removed 9 redundant places. [2022-11-16 12:28:18,214 INFO L231 Difference]: Finished difference. Result has 315 places, 489 transitions, 5769 flow [2022-11-16 12:28:18,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=3751, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5769, PETRI_PLACES=315, PETRI_TRANSITIONS=489} [2022-11-16 12:28:18,215 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 84 predicate places. [2022-11-16 12:28:18,216 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 489 transitions, 5769 flow [2022-11-16 12:28:18,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:18,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:18,217 INFO L209 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] [2022-11-16 12:28:18,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:28:18,217 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:18,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:18,218 INFO L85 PathProgramCache]: Analyzing trace with hash 919703916, now seen corresponding path program 5 times [2022-11-16 12:28:18,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:18,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687673802] [2022-11-16 12:28:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:18,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:20,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:20,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687673802] [2022-11-16 12:28:20,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687673802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:20,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:20,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:20,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926218711] [2022-11-16 12:28:20,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:20,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:20,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:20,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:20,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:20,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:20,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 489 transitions, 5769 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:20,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:20,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:20,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:22,862 INFO L130 PetriNetUnfolder]: 1524/2998 cut-off events. [2022-11-16 12:28:22,862 INFO L131 PetriNetUnfolder]: For 43050/43056 co-relation queries the response was YES. [2022-11-16 12:28:22,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21341 conditions, 2998 events. 1524/2998 cut-off events. For 43050/43056 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16945 event pairs, 100 based on Foata normal form. 8/2969 useless extension candidates. Maximal degree in co-relation 21024. Up to 1759 conditions per place. [2022-11-16 12:28:22,901 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 346 selfloop transitions, 200 changer transitions 0/653 dead transitions. [2022-11-16 12:28:22,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 653 transitions, 8561 flow [2022-11-16 12:28:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:28:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:28:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2022-11-16 12:28:22,907 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.586552217453505 [2022-11-16 12:28:22,907 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2022-11-16 12:28:22,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2022-11-16 12:28:22,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:22,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2022-11-16 12:28:22,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 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) [2022-11-16 12:28:22,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:28:22,920 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:28:22,920 INFO L175 Difference]: Start difference. First operand has 315 places, 489 transitions, 5769 flow. Second operand 18 states and 2460 transitions. [2022-11-16 12:28:22,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 653 transitions, 8561 flow [2022-11-16 12:28:23,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 653 transitions, 8234 flow, removed 107 selfloop flow, removed 12 redundant places. [2022-11-16 12:28:23,131 INFO L231 Difference]: Finished difference. Result has 325 places, 533 transitions, 7181 flow [2022-11-16 12:28:23,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=5497, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7181, PETRI_PLACES=325, PETRI_TRANSITIONS=533} [2022-11-16 12:28:23,132 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 94 predicate places. [2022-11-16 12:28:23,133 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 533 transitions, 7181 flow [2022-11-16 12:28:23,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:23,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:23,134 INFO L209 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] [2022-11-16 12:28:23,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:28:23,134 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:23,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1419346614, now seen corresponding path program 6 times [2022-11-16 12:28:23,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:23,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361747756] [2022-11-16 12:28:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:23,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:25,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:25,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361747756] [2022-11-16 12:28:25,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361747756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:25,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:25,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:25,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598252586] [2022-11-16 12:28:25,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:25,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:25,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:25,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:25,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:25,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:25,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 533 transitions, 7181 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:25,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:25,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:25,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:27,815 INFO L130 PetriNetUnfolder]: 1581/3163 cut-off events. [2022-11-16 12:28:27,815 INFO L131 PetriNetUnfolder]: For 53440/53505 co-relation queries the response was YES. [2022-11-16 12:28:27,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23379 conditions, 3163 events. 1581/3163 cut-off events. For 53440/53505 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 18011 event pairs, 233 based on Foata normal form. 8/3123 useless extension candidates. Maximal degree in co-relation 23057. Up to 1472 conditions per place. [2022-11-16 12:28:27,867 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 406 selfloop transitions, 207 changer transitions 0/720 dead transitions. [2022-11-16 12:28:27,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 720 transitions, 10685 flow [2022-11-16 12:28:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:27,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-16 12:28:27,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-16 12:28:27,873 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-16 12:28:27,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-16 12:28:27,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:27,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-16 12:28:27,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 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) [2022-11-16 12:28:27,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:27,887 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:27,887 INFO L175 Difference]: Start difference. First operand has 325 places, 533 transitions, 7181 flow. Second operand 20 states and 2716 transitions. [2022-11-16 12:28:27,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 720 transitions, 10685 flow [2022-11-16 12:28:28,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 720 transitions, 10401 flow, removed 78 selfloop flow, removed 11 redundant places. [2022-11-16 12:28:28,234 INFO L231 Difference]: Finished difference. Result has 339 places, 565 transitions, 8248 flow [2022-11-16 12:28:28,235 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=6966, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8248, PETRI_PLACES=339, PETRI_TRANSITIONS=565} [2022-11-16 12:28:28,236 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 108 predicate places. [2022-11-16 12:28:28,237 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 565 transitions, 8248 flow [2022-11-16 12:28:28,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:28,238 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:28,238 INFO L209 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] [2022-11-16 12:28:28,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:28:28,238 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:28,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:28,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1617657770, now seen corresponding path program 7 times [2022-11-16 12:28:28,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:28,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498990663] [2022-11-16 12:28:28,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:28,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:29,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:29,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498990663] [2022-11-16 12:28:29,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498990663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:29,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:29,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:29,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548277635] [2022-11-16 12:28:29,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:29,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:29,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:29,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:29,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:29,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:29,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 565 transitions, 8248 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:29,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:29,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:29,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:32,839 INFO L130 PetriNetUnfolder]: 1759/3491 cut-off events. [2022-11-16 12:28:32,839 INFO L131 PetriNetUnfolder]: For 65212/65236 co-relation queries the response was YES. [2022-11-16 12:28:32,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28124 conditions, 3491 events. 1759/3491 cut-off events. For 65212/65236 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 20456 event pairs, 368 based on Foata normal form. 8/3455 useless extension candidates. Maximal degree in co-relation 27796. Up to 2015 conditions per place. [2022-11-16 12:28:32,881 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 378 selfloop transitions, 270 changer transitions 0/755 dead transitions. [2022-11-16 12:28:32,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 755 transitions, 12222 flow [2022-11-16 12:28:32,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:28:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:28:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2022-11-16 12:28:32,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.586552217453505 [2022-11-16 12:28:32,887 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2022-11-16 12:28:32,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2022-11-16 12:28:32,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:32,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2022-11-16 12:28:32,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 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) [2022-11-16 12:28:32,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:28:32,900 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:28:32,900 INFO L175 Difference]: Start difference. First operand has 339 places, 565 transitions, 8248 flow. Second operand 18 states and 2460 transitions. [2022-11-16 12:28:32,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 755 transitions, 12222 flow [2022-11-16 12:28:33,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 755 transitions, 12036 flow, removed 33 selfloop flow, removed 12 redundant places. [2022-11-16 12:28:33,282 INFO L231 Difference]: Finished difference. Result has 351 places, 645 transitions, 11171 flow [2022-11-16 12:28:33,283 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=8080, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11171, PETRI_PLACES=351, PETRI_TRANSITIONS=645} [2022-11-16 12:28:33,284 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 120 predicate places. [2022-11-16 12:28:33,284 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 645 transitions, 11171 flow [2022-11-16 12:28:33,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:33,285 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:33,285 INFO L209 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] [2022-11-16 12:28:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:28:33,286 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:33,286 INFO L85 PathProgramCache]: Analyzing trace with hash -666726578, now seen corresponding path program 8 times [2022-11-16 12:28:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:33,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014162169] [2022-11-16 12:28:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:33,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:34,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:34,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014162169] [2022-11-16 12:28:34,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014162169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:34,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:34,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:34,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018547379] [2022-11-16 12:28:34,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:34,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:34,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:34,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:34,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:34,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:34,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 645 transitions, 11171 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:34,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:34,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:34,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:37,844 INFO L130 PetriNetUnfolder]: 1795/3577 cut-off events. [2022-11-16 12:28:37,844 INFO L131 PetriNetUnfolder]: For 83303/83339 co-relation queries the response was YES. [2022-11-16 12:28:37,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30827 conditions, 3577 events. 1795/3577 cut-off events. For 83303/83339 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 21131 event pairs, 202 based on Foata normal form. 8/3547 useless extension candidates. Maximal degree in co-relation 30492. Up to 1770 conditions per place. [2022-11-16 12:28:37,906 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 448 selfloop transitions, 262 changer transitions 0/817 dead transitions. [2022-11-16 12:28:37,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 817 transitions, 14907 flow [2022-11-16 12:28:37,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:28:37,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:28:37,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-16 12:28:37,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-16 12:28:37,911 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-16 12:28:37,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-16 12:28:37,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:37,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-16 12:28:37,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 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) [2022-11-16 12:28:37,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:28:37,923 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:28:37,923 INFO L175 Difference]: Start difference. First operand has 351 places, 645 transitions, 11171 flow. Second operand 19 states and 2583 transitions. [2022-11-16 12:28:37,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 817 transitions, 14907 flow [2022-11-16 12:28:38,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 817 transitions, 14485 flow, removed 185 selfloop flow, removed 9 redundant places. [2022-11-16 12:28:38,353 INFO L231 Difference]: Finished difference. Result has 365 places, 664 transitions, 12314 flow [2022-11-16 12:28:38,354 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=10862, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12314, PETRI_PLACES=365, PETRI_TRANSITIONS=664} [2022-11-16 12:28:38,354 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 134 predicate places. [2022-11-16 12:28:38,354 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 664 transitions, 12314 flow [2022-11-16 12:28:38,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:38,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:38,356 INFO L209 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] [2022-11-16 12:28:38,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:28:38,356 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:38,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1349569800, now seen corresponding path program 9 times [2022-11-16 12:28:38,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:38,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305175210] [2022-11-16 12:28:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:38,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:39,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:39,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305175210] [2022-11-16 12:28:39,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305175210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:39,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:39,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:39,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701447669] [2022-11-16 12:28:39,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:39,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:39,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:39,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:39,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:39,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:39,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 664 transitions, 12314 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:39,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:39,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:39,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:42,591 INFO L130 PetriNetUnfolder]: 1986/3866 cut-off events. [2022-11-16 12:28:42,591 INFO L131 PetriNetUnfolder]: For 103025/103049 co-relation queries the response was YES. [2022-11-16 12:28:42,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35943 conditions, 3866 events. 1986/3866 cut-off events. For 103025/103049 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 23119 event pairs, 176 based on Foata normal form. 8/3837 useless extension candidates. Maximal degree in co-relation 35603. Up to 2366 conditions per place. [2022-11-16 12:28:42,634 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 456 selfloop transitions, 293 changer transitions 0/856 dead transitions. [2022-11-16 12:28:42,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 856 transitions, 16800 flow [2022-11-16 12:28:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:28:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:28:42,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2456 transitions. [2022-11-16 12:28:42,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5855984740104911 [2022-11-16 12:28:42,640 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2456 transitions. [2022-11-16 12:28:42,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2456 transitions. [2022-11-16 12:28:42,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:42,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2456 transitions. [2022-11-16 12:28:42,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.44444444444446) internal successors, (2456), 18 states have internal predecessors, (2456), 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) [2022-11-16 12:28:42,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:28:42,652 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:28:42,652 INFO L175 Difference]: Start difference. First operand has 365 places, 664 transitions, 12314 flow. Second operand 18 states and 2456 transitions. [2022-11-16 12:28:42,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 856 transitions, 16800 flow [2022-11-16 12:28:43,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 856 transitions, 16668 flow, removed 4 selfloop flow, removed 12 redundant places. [2022-11-16 12:28:43,212 INFO L231 Difference]: Finished difference. Result has 377 places, 730 transitions, 15362 flow [2022-11-16 12:28:43,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=12188, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15362, PETRI_PLACES=377, PETRI_TRANSITIONS=730} [2022-11-16 12:28:43,214 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 146 predicate places. [2022-11-16 12:28:43,214 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 730 transitions, 15362 flow [2022-11-16 12:28:43,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:43,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:43,215 INFO L209 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] [2022-11-16 12:28:43,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:28:43,216 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:43,216 INFO L85 PathProgramCache]: Analyzing trace with hash -269432630, now seen corresponding path program 10 times [2022-11-16 12:28:43,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:43,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495586331] [2022-11-16 12:28:43,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:43,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:45,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:45,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495586331] [2022-11-16 12:28:45,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495586331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:45,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:45,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:45,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439200904] [2022-11-16 12:28:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:45,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:45,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:45,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:45,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 730 transitions, 15362 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:45,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:45,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:45,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:49,158 INFO L130 PetriNetUnfolder]: 2164/4150 cut-off events. [2022-11-16 12:28:49,159 INFO L131 PetriNetUnfolder]: For 137280/137286 co-relation queries the response was YES. [2022-11-16 12:28:49,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41996 conditions, 4150 events. 2164/4150 cut-off events. For 137280/137286 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 25263 event pairs, 140 based on Foata normal form. 8/4121 useless extension candidates. Maximal degree in co-relation 41649. Up to 2221 conditions per place. [2022-11-16 12:28:49,210 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 421 selfloop transitions, 425 changer transitions 0/953 dead transitions. [2022-11-16 12:28:49,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 953 transitions, 21070 flow [2022-11-16 12:28:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-16 12:28:49,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-16 12:28:49,215 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-16 12:28:49,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-16 12:28:49,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:49,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-16 12:28:49,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 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) [2022-11-16 12:28:49,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:49,229 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:49,230 INFO L175 Difference]: Start difference. First operand has 377 places, 730 transitions, 15362 flow. Second operand 20 states and 2716 transitions. [2022-11-16 12:28:49,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 953 transitions, 21070 flow [2022-11-16 12:28:49,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 953 transitions, 20901 flow, removed 56 selfloop flow, removed 10 redundant places. [2022-11-16 12:28:49,870 INFO L231 Difference]: Finished difference. Result has 396 places, 833 transitions, 19753 flow [2022-11-16 12:28:49,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=15220, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19753, PETRI_PLACES=396, PETRI_TRANSITIONS=833} [2022-11-16 12:28:49,871 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 165 predicate places. [2022-11-16 12:28:49,871 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 833 transitions, 19753 flow [2022-11-16 12:28:49,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:49,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:49,872 INFO L209 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] [2022-11-16 12:28:49,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:28:49,873 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:49,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:49,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1312992744, now seen corresponding path program 11 times [2022-11-16 12:28:49,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:49,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806292421] [2022-11-16 12:28:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:49,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:51,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:51,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806292421] [2022-11-16 12:28:51,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806292421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:51,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:51,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:51,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155324217] [2022-11-16 12:28:51,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:51,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:51,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:51,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:51,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:51,578 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:51,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 833 transitions, 19753 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:51,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:51,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:51,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:55,884 INFO L130 PetriNetUnfolder]: 2165/4247 cut-off events. [2022-11-16 12:28:55,884 INFO L131 PetriNetUnfolder]: For 155145/155181 co-relation queries the response was YES. [2022-11-16 12:28:55,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45115 conditions, 4247 events. 2165/4247 cut-off events. For 155145/155181 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26333 event pairs, 204 based on Foata normal form. 8/4217 useless extension candidates. Maximal degree in co-relation 44758. Up to 2167 conditions per place. [2022-11-16 12:28:55,934 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 541 selfloop transitions, 337 changer transitions 0/985 dead transitions. [2022-11-16 12:28:55,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 985 transitions, 23316 flow [2022-11-16 12:28:55,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:55,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-16 12:28:55,938 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-16 12:28:55,939 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-16 12:28:55,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-16 12:28:55,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:55,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-16 12:28:55,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 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) [2022-11-16 12:28:55,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:55,950 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:28:55,951 INFO L175 Difference]: Start difference. First operand has 396 places, 833 transitions, 19753 flow. Second operand 20 states and 2713 transitions. [2022-11-16 12:28:55,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 985 transitions, 23316 flow [2022-11-16 12:28:56,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 985 transitions, 22728 flow, removed 281 selfloop flow, removed 8 redundant places. [2022-11-16 12:28:56,727 INFO L231 Difference]: Finished difference. Result has 411 places, 851 transitions, 20661 flow [2022-11-16 12:28:56,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=19185, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20661, PETRI_PLACES=411, PETRI_TRANSITIONS=851} [2022-11-16 12:28:56,728 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 180 predicate places. [2022-11-16 12:28:56,729 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 851 transitions, 20661 flow [2022-11-16 12:28:56,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:56,729 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:56,729 INFO L209 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] [2022-11-16 12:28:56,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:28:56,729 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:28:56,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:56,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1133853688, now seen corresponding path program 12 times [2022-11-16 12:28:56,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:56,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509660387] [2022-11-16 12:28:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:58,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:58,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509660387] [2022-11-16 12:28:58,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509660387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:58,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:58,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:58,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670550605] [2022-11-16 12:28:58,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:58,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:58,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:58,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:58,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:58,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:28:58,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 851 transitions, 20661 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:28:58,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:58,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:28:58,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:02,486 INFO L130 PetriNetUnfolder]: 2248/4382 cut-off events. [2022-11-16 12:29:02,486 INFO L131 PetriNetUnfolder]: For 168790/168831 co-relation queries the response was YES. [2022-11-16 12:29:02,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48010 conditions, 4382 events. 2248/4382 cut-off events. For 168790/168831 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 27386 event pairs, 365 based on Foata normal form. 10/4347 useless extension candidates. Maximal degree in co-relation 47649. Up to 2681 conditions per place. [2022-11-16 12:29:02,550 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 543 selfloop transitions, 358 changer transitions 0/1008 dead transitions. [2022-11-16 12:29:02,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1008 transitions, 24679 flow [2022-11-16 12:29:02,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:02,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:02,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2714 transitions. [2022-11-16 12:29:02,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5824034334763949 [2022-11-16 12:29:02,554 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2714 transitions. [2022-11-16 12:29:02,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2714 transitions. [2022-11-16 12:29:02,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:02,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2714 transitions. [2022-11-16 12:29:02,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.7) internal successors, (2714), 20 states have internal predecessors, (2714), 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) [2022-11-16 12:29:02,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:02,564 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:02,565 INFO L175 Difference]: Start difference. First operand has 411 places, 851 transitions, 20661 flow. Second operand 20 states and 2714 transitions. [2022-11-16 12:29:02,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1008 transitions, 24679 flow [2022-11-16 12:29:03,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1008 transitions, 24448 flow, removed 35 selfloop flow, removed 14 redundant places. [2022-11-16 12:29:03,441 INFO L231 Difference]: Finished difference. Result has 423 places, 890 transitions, 23211 flow [2022-11-16 12:29:03,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=20433, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=23211, PETRI_PLACES=423, PETRI_TRANSITIONS=890} [2022-11-16 12:29:03,442 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 192 predicate places. [2022-11-16 12:29:03,442 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 890 transitions, 23211 flow [2022-11-16 12:29:03,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:03,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:03,443 INFO L209 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] [2022-11-16 12:29:03,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:29:03,444 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:29:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash -331762210, now seen corresponding path program 13 times [2022-11-16 12:29:03,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:03,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973584444] [2022-11-16 12:29:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:03,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:05,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:05,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973584444] [2022-11-16 12:29:05,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973584444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:05,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:05,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:05,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884003426] [2022-11-16 12:29:05,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:05,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:05,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:05,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:05,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:29:05,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 890 transitions, 23211 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:05,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:05,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:29:05,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:09,407 INFO L130 PetriNetUnfolder]: 2388/4586 cut-off events. [2022-11-16 12:29:09,407 INFO L131 PetriNetUnfolder]: For 208893/208917 co-relation queries the response was YES. [2022-11-16 12:29:09,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53689 conditions, 4586 events. 2388/4586 cut-off events. For 208893/208917 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 28714 event pairs, 171 based on Foata normal form. 8/4556 useless extension candidates. Maximal degree in co-relation 53321. Up to 2737 conditions per place. [2022-11-16 12:29:09,479 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 560 selfloop transitions, 404 changer transitions 0/1071 dead transitions. [2022-11-16 12:29:09,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1071 transitions, 28465 flow [2022-11-16 12:29:09,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-16 12:29:09,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-16 12:29:09,492 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-16 12:29:09,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-16 12:29:09,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:09,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-16 12:29:09,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 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) [2022-11-16 12:29:09,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:09,503 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:09,503 INFO L175 Difference]: Start difference. First operand has 423 places, 890 transitions, 23211 flow. Second operand 20 states and 2716 transitions. [2022-11-16 12:29:09,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1071 transitions, 28465 flow [2022-11-16 12:29:10,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 1071 transitions, 28115 flow, removed 116 selfloop flow, removed 12 redundant places. [2022-11-16 12:29:10,752 INFO L231 Difference]: Finished difference. Result has 438 places, 954 transitions, 26603 flow [2022-11-16 12:29:10,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=22879, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=890, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=26603, PETRI_PLACES=438, PETRI_TRANSITIONS=954} [2022-11-16 12:29:10,754 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 207 predicate places. [2022-11-16 12:29:10,754 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 954 transitions, 26603 flow [2022-11-16 12:29:10,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:10,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:10,755 INFO L209 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] [2022-11-16 12:29:10,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:29:10,755 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:29:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:10,756 INFO L85 PathProgramCache]: Analyzing trace with hash 2063315680, now seen corresponding path program 14 times [2022-11-16 12:29:10,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:10,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207477816] [2022-11-16 12:29:10,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:10,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:12,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:12,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207477816] [2022-11-16 12:29:12,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207477816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:12,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:12,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:12,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769922367] [2022-11-16 12:29:12,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:12,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:12,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:12,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:12,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:12,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:29:12,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 954 transitions, 26603 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:12,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:12,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:29:12,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:17,530 INFO L130 PetriNetUnfolder]: 2481/4741 cut-off events. [2022-11-16 12:29:17,530 INFO L131 PetriNetUnfolder]: For 247296/247320 co-relation queries the response was YES. [2022-11-16 12:29:17,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58974 conditions, 4741 events. 2481/4741 cut-off events. For 247296/247320 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 30094 event pairs, 194 based on Foata normal form. 14/4723 useless extension candidates. Maximal degree in co-relation 58598. Up to 3009 conditions per place. [2022-11-16 12:29:17,624 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 584 selfloop transitions, 424 changer transitions 0/1115 dead transitions. [2022-11-16 12:29:17,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1115 transitions, 31593 flow [2022-11-16 12:29:17,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:29:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:29:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2585 transitions. [2022-11-16 12:29:17,631 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5839168737293878 [2022-11-16 12:29:17,631 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2585 transitions. [2022-11-16 12:29:17,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2585 transitions. [2022-11-16 12:29:17,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:17,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2585 transitions. [2022-11-16 12:29:17,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.05263157894737) internal successors, (2585), 19 states have internal predecessors, (2585), 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) [2022-11-16 12:29:17,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:29:17,646 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:29:17,647 INFO L175 Difference]: Start difference. First operand has 438 places, 954 transitions, 26603 flow. Second operand 19 states and 2585 transitions. [2022-11-16 12:29:17,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1115 transitions, 31593 flow [2022-11-16 12:29:19,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 1115 transitions, 31009 flow, removed 274 selfloop flow, removed 9 redundant places. [2022-11-16 12:29:19,637 INFO L231 Difference]: Finished difference. Result has 454 places, 1007 transitions, 30043 flow [2022-11-16 12:29:19,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=26167, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=954, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=30043, PETRI_PLACES=454, PETRI_TRANSITIONS=1007} [2022-11-16 12:29:19,639 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 223 predicate places. [2022-11-16 12:29:19,639 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 1007 transitions, 30043 flow [2022-11-16 12:29:19,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:19,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:19,640 INFO L209 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] [2022-11-16 12:29:19,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:29:19,641 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:29:19,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:19,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1437879406, now seen corresponding path program 15 times [2022-11-16 12:29:19,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:19,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282611447] [2022-11-16 12:29:19,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:19,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:21,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:21,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282611447] [2022-11-16 12:29:21,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282611447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:21,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:21,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:21,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678117351] [2022-11-16 12:29:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:21,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:21,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:21,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:29:21,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 1007 transitions, 30043 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:21,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:21,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:29:21,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:26,050 INFO L130 PetriNetUnfolder]: 2517/4879 cut-off events. [2022-11-16 12:29:26,051 INFO L131 PetriNetUnfolder]: For 272204/272240 co-relation queries the response was YES. [2022-11-16 12:29:26,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61867 conditions, 4879 events. 2517/4879 cut-off events. For 272204/272240 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 31078 event pairs, 437 based on Foata normal form. 8/4843 useless extension candidates. Maximal degree in co-relation 61484. Up to 3047 conditions per place. [2022-11-16 12:29:26,140 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 589 selfloop transitions, 438 changer transitions 0/1134 dead transitions. [2022-11-16 12:29:26,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 1134 transitions, 33671 flow [2022-11-16 12:29:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:29:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:29:26,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-16 12:29:26,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-16 12:29:26,145 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-16 12:29:26,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-16 12:29:26,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:26,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-16 12:29:26,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 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) [2022-11-16 12:29:26,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:29:26,157 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:29:26,158 INFO L175 Difference]: Start difference. First operand has 454 places, 1007 transitions, 30043 flow. Second operand 19 states and 2583 transitions. [2022-11-16 12:29:26,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 1134 transitions, 33671 flow [2022-11-16 12:29:28,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 1134 transitions, 33409 flow, removed 90 selfloop flow, removed 11 redundant places. [2022-11-16 12:29:28,042 INFO L231 Difference]: Finished difference. Result has 467 places, 1029 transitions, 32243 flow [2022-11-16 12:29:28,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=29782, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1007, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=32243, PETRI_PLACES=467, PETRI_TRANSITIONS=1029} [2022-11-16 12:29:28,043 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 236 predicate places. [2022-11-16 12:29:28,043 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 1029 transitions, 32243 flow [2022-11-16 12:29:28,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:28,044 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:28,044 INFO L209 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] [2022-11-16 12:29:28,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:29:28,044 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:29:28,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:28,045 INFO L85 PathProgramCache]: Analyzing trace with hash 939966272, now seen corresponding path program 16 times [2022-11-16 12:29:28,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:28,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534863631] [2022-11-16 12:29:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:28,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:30,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:30,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534863631] [2022-11-16 12:29:30,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534863631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:30,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:30,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:30,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950664887] [2022-11-16 12:29:30,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:30,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:30,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:30,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:30,022 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:29:30,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1029 transitions, 32243 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:30,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:30,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:29:30,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:35,975 INFO L130 PetriNetUnfolder]: 2627/4991 cut-off events. [2022-11-16 12:29:35,976 INFO L131 PetriNetUnfolder]: For 311826/311850 co-relation queries the response was YES. [2022-11-16 12:29:36,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66464 conditions, 4991 events. 2627/4991 cut-off events. For 311826/311850 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 31886 event pairs, 194 based on Foata normal form. 14/4972 useless extension candidates. Maximal degree in co-relation 66075. Up to 3051 conditions per place. [2022-11-16 12:29:36,075 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 590 selfloop transitions, 472 changer transitions 0/1169 dead transitions. [2022-11-16 12:29:36,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1169 transitions, 36189 flow [2022-11-16 12:29:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:36,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-16 12:29:36,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-16 12:29:36,079 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-16 12:29:36,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-16 12:29:36,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:36,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-16 12:29:36,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 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) [2022-11-16 12:29:36,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:36,087 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:36,087 INFO L175 Difference]: Start difference. First operand has 467 places, 1029 transitions, 32243 flow. Second operand 20 states and 2716 transitions. [2022-11-16 12:29:36,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1169 transitions, 36189 flow [2022-11-16 12:29:38,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1169 transitions, 35863 flow, removed 97 selfloop flow, removed 11 redundant places. [2022-11-16 12:29:38,370 INFO L231 Difference]: Finished difference. Result has 479 places, 1056 transitions, 34139 flow [2022-11-16 12:29:38,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=31925, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1029, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34139, PETRI_PLACES=479, PETRI_TRANSITIONS=1056} [2022-11-16 12:29:38,372 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 248 predicate places. [2022-11-16 12:29:38,372 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 1056 transitions, 34139 flow [2022-11-16 12:29:38,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:38,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:38,373 INFO L209 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] [2022-11-16 12:29:38,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:29:38,373 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:29:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash -251932294, now seen corresponding path program 17 times [2022-11-16 12:29:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:38,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114767945] [2022-11-16 12:29:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:38,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:39,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:39,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114767945] [2022-11-16 12:29:39,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114767945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:39,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:39,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:39,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24809985] [2022-11-16 12:29:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:39,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:39,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:39,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:39,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:39,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:29:39,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1056 transitions, 34139 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:39,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:39,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:29:39,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:45,287 INFO L130 PetriNetUnfolder]: 2628/5070 cut-off events. [2022-11-16 12:29:45,287 INFO L131 PetriNetUnfolder]: For 326212/326248 co-relation queries the response was YES. [2022-11-16 12:29:45,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68587 conditions, 5070 events. 2628/5070 cut-off events. For 326212/326248 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 32522 event pairs, 471 based on Foata normal form. 8/5034 useless extension candidates. Maximal degree in co-relation 68194. Up to 3175 conditions per place. [2022-11-16 12:29:45,456 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 612 selfloop transitions, 464 changer transitions 0/1183 dead transitions. [2022-11-16 12:29:45,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1183 transitions, 37774 flow [2022-11-16 12:29:45,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2715 transitions. [2022-11-16 12:29:45,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5826180257510729 [2022-11-16 12:29:45,461 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2715 transitions. [2022-11-16 12:29:45,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2715 transitions. [2022-11-16 12:29:45,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:45,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2715 transitions. [2022-11-16 12:29:45,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.75) internal successors, (2715), 20 states have internal predecessors, (2715), 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) [2022-11-16 12:29:45,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:45,483 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:45,483 INFO L175 Difference]: Start difference. First operand has 479 places, 1056 transitions, 34139 flow. Second operand 20 states and 2715 transitions. [2022-11-16 12:29:45,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1183 transitions, 37774 flow [2022-11-16 12:29:47,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1183 transitions, 37368 flow, removed 162 selfloop flow, removed 11 redundant places. [2022-11-16 12:29:47,703 INFO L231 Difference]: Finished difference. Result has 491 places, 1076 transitions, 35736 flow [2022-11-16 12:29:47,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=33817, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=35736, PETRI_PLACES=491, PETRI_TRANSITIONS=1076} [2022-11-16 12:29:47,704 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 260 predicate places. [2022-11-16 12:29:47,704 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 1076 transitions, 35736 flow [2022-11-16 12:29:47,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:47,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:47,705 INFO L209 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] [2022-11-16 12:29:47,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:29:47,705 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:29:47,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash -359239554, now seen corresponding path program 18 times [2022-11-16 12:29:47,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:47,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769683959] [2022-11-16 12:29:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:47,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:49,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:49,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769683959] [2022-11-16 12:29:49,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769683959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:49,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:49,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656543339] [2022-11-16 12:29:49,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:49,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:49,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:49,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:49,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:49,354 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:29:49,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1076 transitions, 35736 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:49,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:49,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:29:49,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:55,516 INFO L130 PetriNetUnfolder]: 2685/5119 cut-off events. [2022-11-16 12:29:55,516 INFO L131 PetriNetUnfolder]: For 348853/348889 co-relation queries the response was YES. [2022-11-16 12:29:55,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71665 conditions, 5119 events. 2685/5119 cut-off events. For 348853/348889 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 32807 event pairs, 195 based on Foata normal form. 10/5091 useless extension candidates. Maximal degree in co-relation 71268. Up to 3181 conditions per place. [2022-11-16 12:29:55,606 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 629 selfloop transitions, 482 changer transitions 0/1218 dead transitions. [2022-11-16 12:29:55,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1218 transitions, 40129 flow [2022-11-16 12:29:55,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:55,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-16 12:29:55,609 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-16 12:29:55,610 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-16 12:29:55,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-16 12:29:55,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:55,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-16 12:29:55,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 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) [2022-11-16 12:29:55,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:55,616 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:29:55,616 INFO L175 Difference]: Start difference. First operand has 491 places, 1076 transitions, 35736 flow. Second operand 20 states and 2718 transitions. [2022-11-16 12:29:55,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1218 transitions, 40129 flow [2022-11-16 12:29:57,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 1218 transitions, 39849 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-16 12:29:58,018 INFO L231 Difference]: Finished difference. Result has 502 places, 1108 transitions, 38068 flow [2022-11-16 12:29:58,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=35466, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38068, PETRI_PLACES=502, PETRI_TRANSITIONS=1108} [2022-11-16 12:29:58,020 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 271 predicate places. [2022-11-16 12:29:58,020 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1108 transitions, 38068 flow [2022-11-16 12:29:58,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:58,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:58,021 INFO L209 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] [2022-11-16 12:29:58,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 12:29:58,021 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:29:58,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:58,022 INFO L85 PathProgramCache]: Analyzing trace with hash -533536876, now seen corresponding path program 19 times [2022-11-16 12:29:58,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:58,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31638510] [2022-11-16 12:29:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:58,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:59,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:59,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31638510] [2022-11-16 12:29:59,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31638510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:59,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:59,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957663475] [2022-11-16 12:29:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:59,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:59,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:59,343 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:29:59,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1108 transitions, 38068 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:29:59,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:59,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:29:59,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:05,500 INFO L130 PetriNetUnfolder]: 2686/5118 cut-off events. [2022-11-16 12:30:05,500 INFO L131 PetriNetUnfolder]: For 365223/365247 co-relation queries the response was YES. [2022-11-16 12:30:05,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73792 conditions, 5118 events. 2686/5118 cut-off events. For 365223/365247 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 32990 event pairs, 206 based on Foata normal form. 14/5099 useless extension candidates. Maximal degree in co-relation 73390. Up to 3247 conditions per place. [2022-11-16 12:30:05,648 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 637 selfloop transitions, 488 changer transitions 0/1232 dead transitions. [2022-11-16 12:30:05,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1232 transitions, 41855 flow [2022-11-16 12:30:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:30:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:30:05,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-16 12:30:05,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-16 12:30:05,653 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-16 12:30:05,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-16 12:30:05,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:05,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-16 12:30:05,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 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) [2022-11-16 12:30:05,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:30:05,664 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:30:05,664 INFO L175 Difference]: Start difference. First operand has 502 places, 1108 transitions, 38068 flow. Second operand 20 states and 2713 transitions. [2022-11-16 12:30:05,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1232 transitions, 41855 flow [2022-11-16 12:30:09,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 1232 transitions, 41218 flow, removed 225 selfloop flow, removed 12 redundant places. [2022-11-16 12:30:09,411 INFO L231 Difference]: Finished difference. Result has 513 places, 1128 transitions, 39573 flow [2022-11-16 12:30:09,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=37539, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=471, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39573, PETRI_PLACES=513, PETRI_TRANSITIONS=1128} [2022-11-16 12:30:09,412 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 282 predicate places. [2022-11-16 12:30:09,412 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 1128 transitions, 39573 flow [2022-11-16 12:30:09,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:09,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:09,413 INFO L209 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] [2022-11-16 12:30:09,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 12:30:09,414 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:30:09,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:09,415 INFO L85 PathProgramCache]: Analyzing trace with hash -158047366, now seen corresponding path program 20 times [2022-11-16 12:30:09,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:09,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294182459] [2022-11-16 12:30:09,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:09,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:10,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:10,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294182459] [2022-11-16 12:30:10,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294182459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:10,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:10,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:10,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308409942] [2022-11-16 12:30:10,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:10,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:10,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:10,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:10,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:10,793 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:30:10,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1128 transitions, 39573 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:10,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:10,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:30:10,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:17,228 INFO L130 PetriNetUnfolder]: 2777/5271 cut-off events. [2022-11-16 12:30:17,228 INFO L131 PetriNetUnfolder]: For 391722/391746 co-relation queries the response was YES. [2022-11-16 12:30:17,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77447 conditions, 5271 events. 2777/5271 cut-off events. For 391722/391746 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 34224 event pairs, 316 based on Foata normal form. 11/5247 useless extension candidates. Maximal degree in co-relation 77041. Up to 3219 conditions per place. [2022-11-16 12:30:17,351 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 577 selfloop transitions, 595 changer transitions 0/1279 dead transitions. [2022-11-16 12:30:17,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1279 transitions, 44162 flow [2022-11-16 12:30:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:30:17,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:30:17,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2715 transitions. [2022-11-16 12:30:17,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5826180257510729 [2022-11-16 12:30:17,355 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2715 transitions. [2022-11-16 12:30:17,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2715 transitions. [2022-11-16 12:30:17,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:17,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2715 transitions. [2022-11-16 12:30:17,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.75) internal successors, (2715), 20 states have internal predecessors, (2715), 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) [2022-11-16 12:30:17,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:30:17,364 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:30:17,365 INFO L175 Difference]: Start difference. First operand has 513 places, 1128 transitions, 39573 flow. Second operand 20 states and 2715 transitions. [2022-11-16 12:30:17,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1279 transitions, 44162 flow [2022-11-16 12:30:20,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1279 transitions, 43969 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-16 12:30:20,269 INFO L231 Difference]: Finished difference. Result has 527 places, 1176 transitions, 43073 flow [2022-11-16 12:30:20,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=39380, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=552, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43073, PETRI_PLACES=527, PETRI_TRANSITIONS=1176} [2022-11-16 12:30:20,270 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 296 predicate places. [2022-11-16 12:30:20,270 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1176 transitions, 43073 flow [2022-11-16 12:30:20,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:20,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:20,271 INFO L209 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] [2022-11-16 12:30:20,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 12:30:20,271 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:30:20,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:20,271 INFO L85 PathProgramCache]: Analyzing trace with hash 266354188, now seen corresponding path program 21 times [2022-11-16 12:30:20,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:20,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640828720] [2022-11-16 12:30:20,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:20,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:21,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:21,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640828720] [2022-11-16 12:30:21,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640828720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:21,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:21,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058142970] [2022-11-16 12:30:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:21,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:21,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:21,399 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:30:21,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1176 transitions, 43073 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:21,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:21,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:30:21,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:27,471 INFO L130 PetriNetUnfolder]: 2855/5405 cut-off events. [2022-11-16 12:30:27,471 INFO L131 PetriNetUnfolder]: For 443323/443347 co-relation queries the response was YES. [2022-11-16 12:30:27,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82253 conditions, 5405 events. 2855/5405 cut-off events. For 443323/443347 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 35177 event pairs, 346 based on Foata normal form. 11/5381 useless extension candidates. Maximal degree in co-relation 81840. Up to 3289 conditions per place. [2022-11-16 12:30:27,578 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 588 selfloop transitions, 621 changer transitions 0/1316 dead transitions. [2022-11-16 12:30:27,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1316 transitions, 47633 flow [2022-11-16 12:30:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:30:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:30:27,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-16 12:30:27,582 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-16 12:30:27,582 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-16 12:30:27,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-16 12:30:27,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:27,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-16 12:30:27,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 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) [2022-11-16 12:30:27,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:30:27,591 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:30:27,591 INFO L175 Difference]: Start difference. First operand has 527 places, 1176 transitions, 43073 flow. Second operand 19 states and 2583 transitions. [2022-11-16 12:30:27,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1316 transitions, 47633 flow [2022-11-16 12:30:30,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1316 transitions, 47140 flow, removed 77 selfloop flow, removed 10 redundant places. [2022-11-16 12:30:30,400 INFO L231 Difference]: Finished difference. Result has 541 places, 1213 transitions, 46184 flow [2022-11-16 12:30:30,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=42603, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=585, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=46184, PETRI_PLACES=541, PETRI_TRANSITIONS=1213} [2022-11-16 12:30:30,402 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 310 predicate places. [2022-11-16 12:30:30,402 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 1213 transitions, 46184 flow [2022-11-16 12:30:30,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:30,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:30,403 INFO L209 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] [2022-11-16 12:30:30,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 12:30:30,403 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:30:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:30,404 INFO L85 PathProgramCache]: Analyzing trace with hash -529709466, now seen corresponding path program 22 times [2022-11-16 12:30:30,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:30,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077317155] [2022-11-16 12:30:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:30,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:31,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:31,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077317155] [2022-11-16 12:30:31,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077317155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:31,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:31,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207374751] [2022-11-16 12:30:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:31,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:31,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:31,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:31,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:31,583 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:30:31,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 1213 transitions, 46184 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:31,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:31,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:30:31,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:37,580 INFO L130 PetriNetUnfolder]: 2910/5512 cut-off events. [2022-11-16 12:30:37,580 INFO L131 PetriNetUnfolder]: For 479736/479760 co-relation queries the response was YES. [2022-11-16 12:30:37,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86774 conditions, 5512 events. 2910/5512 cut-off events. For 479736/479760 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 36134 event pairs, 332 based on Foata normal form. 11/5488 useless extension candidates. Maximal degree in co-relation 86355. Up to 3405 conditions per place. [2022-11-16 12:30:37,741 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 616 selfloop transitions, 625 changer transitions 0/1348 dead transitions. [2022-11-16 12:30:37,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 1348 transitions, 50970 flow [2022-11-16 12:30:37,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:30:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:30:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2022-11-16 12:30:37,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5863137815927516 [2022-11-16 12:30:37,745 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2022-11-16 12:30:37,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2022-11-16 12:30:37,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:37,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2022-11-16 12:30:37,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 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) [2022-11-16 12:30:37,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:30:37,754 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:30:37,754 INFO L175 Difference]: Start difference. First operand has 541 places, 1213 transitions, 46184 flow. Second operand 18 states and 2459 transitions. [2022-11-16 12:30:37,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 1348 transitions, 50970 flow [2022-11-16 12:30:41,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1348 transitions, 50369 flow, removed 155 selfloop flow, removed 12 redundant places. [2022-11-16 12:30:41,327 INFO L231 Difference]: Finished difference. Result has 553 places, 1247 transitions, 49455 flow [2022-11-16 12:30:41,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=45615, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=591, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=49455, PETRI_PLACES=553, PETRI_TRANSITIONS=1247} [2022-11-16 12:30:41,329 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 322 predicate places. [2022-11-16 12:30:41,329 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 1247 transitions, 49455 flow [2022-11-16 12:30:41,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:41,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:41,330 INFO L209 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] [2022-11-16 12:30:41,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 12:30:41,330 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:30:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1317103642, now seen corresponding path program 23 times [2022-11-16 12:30:41,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:41,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438445537] [2022-11-16 12:30:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:42,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:42,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438445537] [2022-11-16 12:30:42,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438445537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:42,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:42,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:42,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830286104] [2022-11-16 12:30:42,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:42,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:42,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:42,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:42,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:42,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:30:42,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1247 transitions, 49455 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:42,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:42,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:30:42,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:50,376 INFO L130 PetriNetUnfolder]: 3035/5729 cut-off events. [2022-11-16 12:30:50,376 INFO L131 PetriNetUnfolder]: For 540037/540061 co-relation queries the response was YES. [2022-11-16 12:30:50,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93002 conditions, 5729 events. 3035/5729 cut-off events. For 540037/540061 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 37814 event pairs, 340 based on Foata normal form. 11/5705 useless extension candidates. Maximal degree in co-relation 92576. Up to 3475 conditions per place. [2022-11-16 12:30:50,564 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 626 selfloop transitions, 659 changer transitions 0/1392 dead transitions. [2022-11-16 12:30:50,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 1392 transitions, 54654 flow [2022-11-16 12:30:50,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:30:50,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:30:50,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2721 transitions. [2022-11-16 12:30:50,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5839055793991417 [2022-11-16 12:30:50,567 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2721 transitions. [2022-11-16 12:30:50,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2721 transitions. [2022-11-16 12:30:50,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:50,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2721 transitions. [2022-11-16 12:30:50,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.05) internal successors, (2721), 20 states have internal predecessors, (2721), 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) [2022-11-16 12:30:50,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:30:50,574 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:30:50,574 INFO L175 Difference]: Start difference. First operand has 553 places, 1247 transitions, 49455 flow. Second operand 20 states and 2721 transitions. [2022-11-16 12:30:50,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 1392 transitions, 54654 flow [2022-11-16 12:30:54,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1392 transitions, 54231 flow, removed 113 selfloop flow, removed 9 redundant places. [2022-11-16 12:30:54,994 INFO L231 Difference]: Finished difference. Result has 570 places, 1287 transitions, 52655 flow [2022-11-16 12:30:54,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=49098, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=623, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=52655, PETRI_PLACES=570, PETRI_TRANSITIONS=1287} [2022-11-16 12:30:54,997 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 339 predicate places. [2022-11-16 12:30:54,997 INFO L495 AbstractCegarLoop]: Abstraction has has 570 places, 1287 transitions, 52655 flow [2022-11-16 12:30:54,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:54,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:54,998 INFO L209 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] [2022-11-16 12:30:54,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 12:30:54,998 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:30:54,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash -401906076, now seen corresponding path program 24 times [2022-11-16 12:30:54,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:54,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124415121] [2022-11-16 12:30:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:54,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:56,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:56,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124415121] [2022-11-16 12:30:56,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124415121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:56,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:56,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:56,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387217589] [2022-11-16 12:30:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:56,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:56,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:56,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:56,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:56,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:30:56,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 1287 transitions, 52655 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:30:56,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:56,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:30:56,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:31:03,455 INFO L130 PetriNetUnfolder]: 3114/5876 cut-off events. [2022-11-16 12:31:03,455 INFO L131 PetriNetUnfolder]: For 582687/582711 co-relation queries the response was YES. [2022-11-16 12:31:03,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98483 conditions, 5876 events. 3114/5876 cut-off events. For 582687/582711 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 39083 event pairs, 372 based on Foata normal form. 11/5851 useless extension candidates. Maximal degree in co-relation 98050. Up to 3645 conditions per place. [2022-11-16 12:31:03,622 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 643 selfloop transitions, 681 changer transitions 0/1431 dead transitions. [2022-11-16 12:31:03,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 1431 transitions, 58182 flow [2022-11-16 12:31:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:31:03,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:31:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2589 transitions. [2022-11-16 12:31:03,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5848204201490852 [2022-11-16 12:31:03,625 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2589 transitions. [2022-11-16 12:31:03,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2589 transitions. [2022-11-16 12:31:03,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:31:03,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2589 transitions. [2022-11-16 12:31:03,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.26315789473685) internal successors, (2589), 19 states have internal predecessors, (2589), 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) [2022-11-16 12:31:03,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:31:03,631 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:31:03,631 INFO L175 Difference]: Start difference. First operand has 570 places, 1287 transitions, 52655 flow. Second operand 19 states and 2589 transitions. [2022-11-16 12:31:03,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 1431 transitions, 58182 flow [2022-11-16 12:31:10,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 1431 transitions, 57629 flow, removed 133 selfloop flow, removed 10 redundant places. [2022-11-16 12:31:10,616 INFO L231 Difference]: Finished difference. Result has 583 places, 1328 transitions, 56576 flow [2022-11-16 12:31:10,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=52166, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=642, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=56576, PETRI_PLACES=583, PETRI_TRANSITIONS=1328} [2022-11-16 12:31:10,619 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 352 predicate places. [2022-11-16 12:31:10,619 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 1328 transitions, 56576 flow [2022-11-16 12:31:10,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:31:10,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:31:10,620 INFO L209 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] [2022-11-16 12:31:10,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 12:31:10,620 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:31:10,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:10,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1423457512, now seen corresponding path program 25 times [2022-11-16 12:31:10,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:10,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537099405] [2022-11-16 12:31:10,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:10,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:12,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:12,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537099405] [2022-11-16 12:31:12,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537099405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:12,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:12,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:31:12,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637624254] [2022-11-16 12:31:12,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:12,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:31:12,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:12,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:31:12,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:12,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:31:12,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1328 transitions, 56576 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:31:12,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:31:12,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:31:12,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:31:20,916 INFO L130 PetriNetUnfolder]: 3157/5957 cut-off events. [2022-11-16 12:31:20,916 INFO L131 PetriNetUnfolder]: For 634565/634601 co-relation queries the response was YES. [2022-11-16 12:31:21,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102266 conditions, 5957 events. 3157/5957 cut-off events. For 634565/634601 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 39514 event pairs, 536 based on Foata normal form. 8/5923 useless extension candidates. Maximal degree in co-relation 101828. Up to 3701 conditions per place. [2022-11-16 12:31:21,136 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 648 selfloop transitions, 696 changer transitions 0/1451 dead transitions. [2022-11-16 12:31:21,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1451 transitions, 60953 flow [2022-11-16 12:31:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:31:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:31:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2720 transitions. [2022-11-16 12:31:21,143 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5836909871244635 [2022-11-16 12:31:21,143 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2720 transitions. [2022-11-16 12:31:21,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2720 transitions. [2022-11-16 12:31:21,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:31:21,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2720 transitions. [2022-11-16 12:31:21,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 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) [2022-11-16 12:31:21,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:31:21,152 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:31:21,152 INFO L175 Difference]: Start difference. First operand has 583 places, 1328 transitions, 56576 flow. Second operand 20 states and 2720 transitions. [2022-11-16 12:31:21,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1451 transitions, 60953 flow [2022-11-16 12:31:26,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 1451 transitions, 60592 flow, removed 9 selfloop flow, removed 12 redundant places. [2022-11-16 12:31:26,505 INFO L231 Difference]: Finished difference. Result has 596 places, 1354 transitions, 59695 flow [2022-11-16 12:31:26,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=56220, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=675, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=59695, PETRI_PLACES=596, PETRI_TRANSITIONS=1354} [2022-11-16 12:31:26,506 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 365 predicate places. [2022-11-16 12:31:26,506 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 1354 transitions, 59695 flow [2022-11-16 12:31:26,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:31:26,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:31:26,507 INFO L209 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] [2022-11-16 12:31:26,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 12:31:26,507 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:31:26,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1921644938, now seen corresponding path program 26 times [2022-11-16 12:31:26,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:26,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052058888] [2022-11-16 12:31:26,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:26,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:27,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:27,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052058888] [2022-11-16 12:31:27,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052058888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:27,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:27,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:31:27,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878318719] [2022-11-16 12:31:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:27,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:31:27,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:27,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:31:27,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:27,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:31:27,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1354 transitions, 59695 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:31:27,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:31:27,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:31:27,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:31:36,435 INFO L130 PetriNetUnfolder]: 3155/5963 cut-off events. [2022-11-16 12:31:36,435 INFO L131 PetriNetUnfolder]: For 667605/667641 co-relation queries the response was YES. [2022-11-16 12:31:36,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104951 conditions, 5963 events. 3155/5963 cut-off events. For 667605/667641 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 39625 event pairs, 526 based on Foata normal form. 8/5929 useless extension candidates. Maximal degree in co-relation 104507. Up to 3671 conditions per place. [2022-11-16 12:31:36,593 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 657 selfloop transitions, 704 changer transitions 0/1468 dead transitions. [2022-11-16 12:31:36,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 1468 transitions, 63556 flow [2022-11-16 12:31:36,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:31:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:31:36,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2717 transitions. [2022-11-16 12:31:36,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5830472103004292 [2022-11-16 12:31:36,596 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2717 transitions. [2022-11-16 12:31:36,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2717 transitions. [2022-11-16 12:31:36,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:31:36,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2717 transitions. [2022-11-16 12:31:36,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.85) internal successors, (2717), 20 states have internal predecessors, (2717), 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) [2022-11-16 12:31:36,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:31:36,603 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:31:36,604 INFO L175 Difference]: Start difference. First operand has 596 places, 1354 transitions, 59695 flow. Second operand 20 states and 2717 transitions. [2022-11-16 12:31:36,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 1468 transitions, 63556 flow [2022-11-16 12:31:44,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 603 places, 1468 transitions, 62800 flow, removed 173 selfloop flow, removed 12 redundant places. [2022-11-16 12:31:44,133 INFO L231 Difference]: Finished difference. Result has 606 places, 1369 transitions, 61152 flow [2022-11-16 12:31:44,134 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=59015, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=692, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=657, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=61152, PETRI_PLACES=606, PETRI_TRANSITIONS=1369} [2022-11-16 12:31:44,135 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 375 predicate places. [2022-11-16 12:31:44,135 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 1369 transitions, 61152 flow [2022-11-16 12:31:44,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:31:44,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:31:44,136 INFO L209 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] [2022-11-16 12:31:44,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 12:31:44,136 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:31:44,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:44,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1598708224, now seen corresponding path program 27 times [2022-11-16 12:31:44,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:44,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282380201] [2022-11-16 12:31:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:44,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:45,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:45,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282380201] [2022-11-16 12:31:45,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282380201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:45,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:45,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:31:45,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163048234] [2022-11-16 12:31:45,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:45,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:31:45,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:45,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:31:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:45,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:31:45,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1369 transitions, 61152 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:31:45,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:31:45,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:31:45,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:31:55,584 INFO L130 PetriNetUnfolder]: 3268/6152 cut-off events. [2022-11-16 12:31:55,584 INFO L131 PetriNetUnfolder]: For 700851/700887 co-relation queries the response was YES. [2022-11-16 12:31:55,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110142 conditions, 6152 events. 3268/6152 cut-off events. For 700851/700887 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 41043 event pairs, 528 based on Foata normal form. 8/6118 useless extension candidates. Maximal degree in co-relation 109695. Up to 3723 conditions per place. [2022-11-16 12:31:55,726 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 659 selfloop transitions, 739 changer transitions 0/1505 dead transitions. [2022-11-16 12:31:55,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 1505 transitions, 66249 flow [2022-11-16 12:31:55,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:31:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:31:55,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-16 12:31:55,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-16 12:31:55,728 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-16 12:31:55,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-16 12:31:55,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:31:55,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-16 12:31:55,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 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) [2022-11-16 12:31:55,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:31:55,734 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:31:55,734 INFO L175 Difference]: Start difference. First operand has 606 places, 1369 transitions, 61152 flow. Second operand 20 states and 2718 transitions. [2022-11-16 12:31:55,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 1505 transitions, 66249 flow [2022-11-16 12:32:01,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 1505 transitions, 65710 flow, removed 33 selfloop flow, removed 13 redundant places. [2022-11-16 12:32:01,503 INFO L231 Difference]: Finished difference. Result has 617 places, 1402 transitions, 64032 flow [2022-11-16 12:32:01,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=60631, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=710, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=64032, PETRI_PLACES=617, PETRI_TRANSITIONS=1402} [2022-11-16 12:32:01,505 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 386 predicate places. [2022-11-16 12:32:01,505 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 1402 transitions, 64032 flow [2022-11-16 12:32:01,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:32:01,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:01,506 INFO L209 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] [2022-11-16 12:32:01,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 12:32:01,506 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:32:01,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:01,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1705062094, now seen corresponding path program 28 times [2022-11-16 12:32:01,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:01,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478499402] [2022-11-16 12:32:01,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:01,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:03,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:03,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478499402] [2022-11-16 12:32:03,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478499402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:03,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:03,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:32:03,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055143237] [2022-11-16 12:32:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:03,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:32:03,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:03,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:32:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:32:03,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:32:03,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 1402 transitions, 64032 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:32:03,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:03,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:32:03,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:12,508 INFO L130 PetriNetUnfolder]: 3269/6165 cut-off events. [2022-11-16 12:32:12,508 INFO L131 PetriNetUnfolder]: For 735946/735982 co-relation queries the response was YES. [2022-11-16 12:32:12,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112953 conditions, 6165 events. 3269/6165 cut-off events. For 735946/735982 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 41203 event pairs, 532 based on Foata normal form. 8/6130 useless extension candidates. Maximal degree in co-relation 112501. Up to 3789 conditions per place. [2022-11-16 12:32:12,675 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 667 selfloop transitions, 745 changer transitions 0/1519 dead transitions. [2022-11-16 12:32:12,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 1519 transitions, 68382 flow [2022-11-16 12:32:12,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:32:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:32:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-16 12:32:12,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-16 12:32:12,679 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-16 12:32:12,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-16 12:32:12,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:12,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-16 12:32:12,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 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) [2022-11-16 12:32:12,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:32:12,687 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:32:12,688 INFO L175 Difference]: Start difference. First operand has 617 places, 1402 transitions, 64032 flow. Second operand 20 states and 2713 transitions. [2022-11-16 12:32:12,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 1519 transitions, 68382 flow [2022-11-16 12:32:20,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 1519 transitions, 67784 flow, removed 173 selfloop flow, removed 11 redundant places. [2022-11-16 12:32:21,023 INFO L231 Difference]: Finished difference. Result has 629 places, 1422 transitions, 66270 flow [2022-11-16 12:32:21,025 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=63540, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=728, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=66270, PETRI_PLACES=629, PETRI_TRANSITIONS=1422} [2022-11-16 12:32:21,025 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 398 predicate places. [2022-11-16 12:32:21,026 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 1422 transitions, 66270 flow [2022-11-16 12:32:21,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:32:21,026 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:21,027 INFO L209 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] [2022-11-16 12:32:21,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 12:32:21,027 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:32:21,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1107912212, now seen corresponding path program 29 times [2022-11-16 12:32:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:21,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667843785] [2022-11-16 12:32:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:22,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:22,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667843785] [2022-11-16 12:32:22,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667843785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:22,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:22,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:32:22,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759275736] [2022-11-16 12:32:22,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:22,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:32:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:32:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:32:22,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:32:22,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 1422 transitions, 66270 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:32:22,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:22,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:32:22,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:32,905 INFO L130 PetriNetUnfolder]: 3324/6272 cut-off events. [2022-11-16 12:32:32,905 INFO L131 PetriNetUnfolder]: For 772012/772048 co-relation queries the response was YES. [2022-11-16 12:32:33,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117345 conditions, 6272 events. 3324/6272 cut-off events. For 772012/772048 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 42298 event pairs, 538 based on Foata normal form. 8/6238 useless extension candidates. Maximal degree in co-relation 116889. Up to 3949 conditions per place. [2022-11-16 12:32:33,163 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 708 selfloop transitions, 737 changer transitions 0/1552 dead transitions. [2022-11-16 12:32:33,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 1552 transitions, 71436 flow [2022-11-16 12:32:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:32:33,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:32:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-16 12:32:33,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-16 12:32:33,166 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-16 12:32:33,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-16 12:32:33,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:33,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-16 12:32:33,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 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) [2022-11-16 12:32:33,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:32:33,171 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:32:33,172 INFO L175 Difference]: Start difference. First operand has 629 places, 1422 transitions, 66270 flow. Second operand 20 states and 2718 transitions. [2022-11-16 12:32:33,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 1552 transitions, 71436 flow [2022-11-16 12:32:41,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 1552 transitions, 70984 flow, removed 32 selfloop flow, removed 13 redundant places. [2022-11-16 12:32:41,884 INFO L231 Difference]: Finished difference. Result has 642 places, 1453 transitions, 70006 flow [2022-11-16 12:32:41,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=65820, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=709, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=70006, PETRI_PLACES=642, PETRI_TRANSITIONS=1453} [2022-11-16 12:32:41,885 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 411 predicate places. [2022-11-16 12:32:41,886 INFO L495 AbstractCegarLoop]: Abstraction has has 642 places, 1453 transitions, 70006 flow [2022-11-16 12:32:41,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:32:41,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:41,886 INFO L209 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] [2022-11-16 12:32:41,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 12:32:41,886 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:32:41,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:41,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2027261298, now seen corresponding path program 30 times [2022-11-16 12:32:41,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:41,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208974585] [2022-11-16 12:32:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:41,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:43,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:43,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208974585] [2022-11-16 12:32:43,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208974585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:43,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:43,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:32:43,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653315821] [2022-11-16 12:32:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:43,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:32:43,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:43,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:32:43,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:32:43,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:32:43,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 1453 transitions, 70006 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:32:43,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:43,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:32:43,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:53,862 INFO L130 PetriNetUnfolder]: 3364/6342 cut-off events. [2022-11-16 12:32:53,862 INFO L131 PetriNetUnfolder]: For 819078/819102 co-relation queries the response was YES. [2022-11-16 12:32:53,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121438 conditions, 6342 events. 3364/6342 cut-off events. For 819078/819102 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 43108 event pairs, 368 based on Foata normal form. 11/6317 useless extension candidates. Maximal degree in co-relation 120975. Up to 3793 conditions per place. [2022-11-16 12:32:54,009 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 692 selfloop transitions, 778 changer transitions 0/1577 dead transitions. [2022-11-16 12:32:54,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 1577 transitions, 74589 flow [2022-11-16 12:32:54,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:32:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:32:54,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-16 12:32:54,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-16 12:32:54,012 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-16 12:32:54,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-16 12:32:54,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:54,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-16 12:32:54,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 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) [2022-11-16 12:32:54,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:32:54,017 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:32:54,017 INFO L175 Difference]: Start difference. First operand has 642 places, 1453 transitions, 70006 flow. Second operand 20 states and 2716 transitions. [2022-11-16 12:32:54,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 1577 transitions, 74589 flow [2022-11-16 12:33:02,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 1577 transitions, 74078 flow, removed 79 selfloop flow, removed 11 redundant places. [2022-11-16 12:33:02,112 INFO L231 Difference]: Finished difference. Result has 654 places, 1475 transitions, 72390 flow [2022-11-16 12:33:02,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=69496, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=759, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=72390, PETRI_PLACES=654, PETRI_TRANSITIONS=1475} [2022-11-16 12:33:02,113 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 423 predicate places. [2022-11-16 12:33:02,114 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 1475 transitions, 72390 flow [2022-11-16 12:33:02,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:33:02,114 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:02,114 INFO L209 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] [2022-11-16 12:33:02,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 12:33:02,115 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:33:02,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:02,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1271892188, now seen corresponding path program 31 times [2022-11-16 12:33:02,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:02,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528371947] [2022-11-16 12:33:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:02,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:03,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:03,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528371947] [2022-11-16 12:33:03,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528371947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:03,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:03,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:33:03,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68346328] [2022-11-16 12:33:03,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:03,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:33:03,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:03,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:33:03,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:33:03,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:33:03,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 1475 transitions, 72390 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:33:03,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:03,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:33:03,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:13,960 INFO L130 PetriNetUnfolder]: 3406/6424 cut-off events. [2022-11-16 12:33:13,960 INFO L131 PetriNetUnfolder]: For 862563/862587 co-relation queries the response was YES. [2022-11-16 12:33:14,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126012 conditions, 6424 events. 3406/6424 cut-off events. For 862563/862587 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 43753 event pairs, 418 based on Foata normal form. 11/6399 useless extension candidates. Maximal degree in co-relation 125545. Up to 4067 conditions per place. [2022-11-16 12:33:14,287 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 722 selfloop transitions, 768 changer transitions 0/1597 dead transitions. [2022-11-16 12:33:14,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 1597 transitions, 77329 flow [2022-11-16 12:33:14,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:33:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:33:14,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2586 transitions. [2022-11-16 12:33:14,289 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5841427603343122 [2022-11-16 12:33:14,289 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2586 transitions. [2022-11-16 12:33:14,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2586 transitions. [2022-11-16 12:33:14,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:14,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2586 transitions. [2022-11-16 12:33:14,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.10526315789474) internal successors, (2586), 19 states have internal predecessors, (2586), 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) [2022-11-16 12:33:14,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:33:14,293 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 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) [2022-11-16 12:33:14,293 INFO L175 Difference]: Start difference. First operand has 654 places, 1475 transitions, 72390 flow. Second operand 19 states and 2586 transitions. [2022-11-16 12:33:14,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 1597 transitions, 77329 flow [2022-11-16 12:33:23,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1597 transitions, 76793 flow, removed 93 selfloop flow, removed 12 redundant places. [2022-11-16 12:33:23,959 INFO L231 Difference]: Finished difference. Result has 664 places, 1498 transitions, 75644 flow [2022-11-16 12:33:23,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=71879, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=745, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=715, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=75644, PETRI_PLACES=664, PETRI_TRANSITIONS=1498} [2022-11-16 12:33:23,961 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 433 predicate places. [2022-11-16 12:33:23,962 INFO L495 AbstractCegarLoop]: Abstraction has has 664 places, 1498 transitions, 75644 flow [2022-11-16 12:33:23,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:33:23,962 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:23,962 INFO L209 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] [2022-11-16 12:33:23,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 12:33:23,963 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:33:23,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:23,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1267740668, now seen corresponding path program 32 times [2022-11-16 12:33:23,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:23,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169691073] [2022-11-16 12:33:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:23,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:25,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:25,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:25,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169691073] [2022-11-16 12:33:25,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169691073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:25,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:25,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:33:25,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801036291] [2022-11-16 12:33:25,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:25,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:33:25,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:25,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:33:25,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:33:25,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:33:25,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 664 places, 1498 transitions, 75644 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:33:25,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:25,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:33:25,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:35,542 INFO L130 PetriNetUnfolder]: 3404/6434 cut-off events. [2022-11-16 12:33:35,542 INFO L131 PetriNetUnfolder]: For 880669/880705 co-relation queries the response was YES. [2022-11-16 12:33:35,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128322 conditions, 6434 events. 3404/6434 cut-off events. For 880669/880705 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 43807 event pairs, 507 based on Foata normal form. 8/6399 useless extension candidates. Maximal degree in co-relation 127851. Up to 4029 conditions per place. [2022-11-16 12:33:35,771 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 726 selfloop transitions, 779 changer transitions 0/1612 dead transitions. [2022-11-16 12:33:35,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 1612 transitions, 79878 flow [2022-11-16 12:33:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:33:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:33:35,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2714 transitions. [2022-11-16 12:33:35,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5824034334763949 [2022-11-16 12:33:35,774 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2714 transitions. [2022-11-16 12:33:35,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2714 transitions. [2022-11-16 12:33:35,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:35,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2714 transitions. [2022-11-16 12:33:35,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.7) internal successors, (2714), 20 states have internal predecessors, (2714), 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) [2022-11-16 12:33:35,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:33:35,779 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:33:35,779 INFO L175 Difference]: Start difference. First operand has 664 places, 1498 transitions, 75644 flow. Second operand 20 states and 2714 transitions. [2022-11-16 12:33:35,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 683 places, 1612 transitions, 79878 flow [2022-11-16 12:33:46,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 1612 transitions, 79473 flow, removed 124 selfloop flow, removed 11 redundant places. [2022-11-16 12:33:46,939 INFO L231 Difference]: Finished difference. Result has 675 places, 1513 transitions, 77705 flow [2022-11-16 12:33:46,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=75292, PETRI_DIFFERENCE_MINUEND_PLACES=653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=767, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=77705, PETRI_PLACES=675, PETRI_TRANSITIONS=1513} [2022-11-16 12:33:46,940 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 444 predicate places. [2022-11-16 12:33:46,940 INFO L495 AbstractCegarLoop]: Abstraction has has 675 places, 1513 transitions, 77705 flow [2022-11-16 12:33:46,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:33:46,941 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:46,941 INFO L209 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] [2022-11-16 12:33:46,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 12:33:46,941 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:33:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:46,941 INFO L85 PathProgramCache]: Analyzing trace with hash 78563406, now seen corresponding path program 33 times [2022-11-16 12:33:46,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:46,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855188216] [2022-11-16 12:33:46,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:46,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:48,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:48,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855188216] [2022-11-16 12:33:48,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855188216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:48,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:48,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:33:48,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727315092] [2022-11-16 12:33:48,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:48,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:33:48,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:48,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:33:48,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:33:48,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:33:48,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 675 places, 1513 transitions, 77705 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:33:48,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:48,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:33:48,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:59,913 INFO L130 PetriNetUnfolder]: 3577/6747 cut-off events. [2022-11-16 12:33:59,913 INFO L131 PetriNetUnfolder]: For 990183/990207 co-relation queries the response was YES. [2022-11-16 12:34:00,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137754 conditions, 6747 events. 3577/6747 cut-off events. For 990183/990207 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 46752 event pairs, 545 based on Foata normal form. 8/6715 useless extension candidates. Maximal degree in co-relation 137280. Up to 4198 conditions per place. [2022-11-16 12:34:00,087 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 726 selfloop transitions, 863 changer transitions 0/1696 dead transitions. [2022-11-16 12:34:00,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 1696 transitions, 86559 flow [2022-11-16 12:34:00,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:34:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:34:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2458 transitions. [2022-11-16 12:34:00,090 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.586075345731998 [2022-11-16 12:34:00,090 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2458 transitions. [2022-11-16 12:34:00,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2458 transitions. [2022-11-16 12:34:00,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:34:00,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2458 transitions. [2022-11-16 12:34:00,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.55555555555554) internal successors, (2458), 18 states have internal predecessors, (2458), 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) [2022-11-16 12:34:00,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:34:00,096 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:34:00,096 INFO L175 Difference]: Start difference. First operand has 675 places, 1513 transitions, 77705 flow. Second operand 18 states and 2458 transitions. [2022-11-16 12:34:00,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 1696 transitions, 86559 flow [2022-11-16 12:34:12,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 1696 transitions, 86233 flow, removed 48 selfloop flow, removed 12 redundant places. [2022-11-16 12:34:12,362 INFO L231 Difference]: Finished difference. Result has 687 places, 1598 transitions, 85407 flow [2022-11-16 12:34:12,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=77383, PETRI_DIFFERENCE_MINUEND_PLACES=663, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=781, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=85407, PETRI_PLACES=687, PETRI_TRANSITIONS=1598} [2022-11-16 12:34:12,364 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 456 predicate places. [2022-11-16 12:34:12,364 INFO L495 AbstractCegarLoop]: Abstraction has has 687 places, 1598 transitions, 85407 flow [2022-11-16 12:34:12,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:34:12,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:34:12,365 INFO L209 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] [2022-11-16 12:34:12,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 12:34:12,365 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:34:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:34:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 342088176, now seen corresponding path program 1 times [2022-11-16 12:34:12,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:34:12,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478282973] [2022-11-16 12:34:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:34:12,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:34:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:34:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:34:13,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:34:13,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478282973] [2022-11-16 12:34:13,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478282973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:34:13,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:34:13,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:34:13,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907267482] [2022-11-16 12:34:13,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:34:13,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:34:13,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:34:13,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:34:13,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:34:13,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:34:13,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 687 places, 1598 transitions, 85407 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:34:13,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:34:13,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:34:13,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:34:33,150 INFO L130 PetriNetUnfolder]: 7775/14007 cut-off events. [2022-11-16 12:34:33,150 INFO L131 PetriNetUnfolder]: For 2298727/2299262 co-relation queries the response was YES. [2022-11-16 12:34:33,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258968 conditions, 14007 events. 7775/14007 cut-off events. For 2298727/2299262 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 111883 event pairs, 399 based on Foata normal form. 183/14085 useless extension candidates. Maximal degree in co-relation 258487. Up to 6561 conditions per place. [2022-11-16 12:34:33,789 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 2428 selfloop transitions, 1500 changer transitions 0/4145 dead transitions. [2022-11-16 12:34:33,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 706 places, 4145 transitions, 221526 flow [2022-11-16 12:34:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:34:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:34:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2775 transitions. [2022-11-16 12:34:33,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5954935622317596 [2022-11-16 12:34:33,792 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2775 transitions. [2022-11-16 12:34:33,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2775 transitions. [2022-11-16 12:34:33,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:34:33,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2775 transitions. [2022-11-16 12:34:33,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.75) internal successors, (2775), 20 states have internal predecessors, (2775), 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) [2022-11-16 12:34:33,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:34:33,799 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:34:33,799 INFO L175 Difference]: Start difference. First operand has 687 places, 1598 transitions, 85407 flow. Second operand 20 states and 2775 transitions. [2022-11-16 12:34:33,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 706 places, 4145 transitions, 221526 flow [2022-11-16 12:35:06,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 697 places, 4145 transitions, 220232 flow, removed 8 selfloop flow, removed 9 redundant places. [2022-11-16 12:35:06,159 INFO L231 Difference]: Finished difference. Result has 706 places, 2571 transitions, 164001 flow [2022-11-16 12:35:06,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=85042, PETRI_DIFFERENCE_MINUEND_PLACES=678, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=575, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=164001, PETRI_PLACES=706, PETRI_TRANSITIONS=2571} [2022-11-16 12:35:06,160 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 475 predicate places. [2022-11-16 12:35:06,161 INFO L495 AbstractCegarLoop]: Abstraction has has 706 places, 2571 transitions, 164001 flow [2022-11-16 12:35:06,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:35:06,161 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:06,162 INFO L209 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] [2022-11-16 12:35:06,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 12:35:06,162 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:35:06,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:06,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1978411626, now seen corresponding path program 34 times [2022-11-16 12:35:06,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:06,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599656212] [2022-11-16 12:35:06,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:06,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:07,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:07,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599656212] [2022-11-16 12:35:07,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599656212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:07,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:07,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:35:07,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131288278] [2022-11-16 12:35:07,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:07,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:35:07,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:07,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:35:07,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:35:07,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:35:07,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 706 places, 2571 transitions, 164001 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:35:07,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:07,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:35:07,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:29,380 INFO L130 PetriNetUnfolder]: 5893/10822 cut-off events. [2022-11-16 12:35:29,380 INFO L131 PetriNetUnfolder]: For 2151390/2183255 co-relation queries the response was YES. [2022-11-16 12:35:29,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237863 conditions, 10822 events. 5893/10822 cut-off events. For 2151390/2183255 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 84847 event pairs, 748 based on Foata normal form. 350/11079 useless extension candidates. Maximal degree in co-relation 237373. Up to 5820 conditions per place. [2022-11-16 12:35:29,819 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 920 selfloop transitions, 1751 changer transitions 0/2782 dead transitions. [2022-11-16 12:35:29,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 723 places, 2782 transitions, 176825 flow [2022-11-16 12:35:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:35:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:35:29,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2457 transitions. [2022-11-16 12:35:29,822 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5858369098712446 [2022-11-16 12:35:29,822 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2457 transitions. [2022-11-16 12:35:29,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2457 transitions. [2022-11-16 12:35:29,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:29,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2457 transitions. [2022-11-16 12:35:29,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.5) internal successors, (2457), 18 states have internal predecessors, (2457), 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) [2022-11-16 12:35:29,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:35:29,831 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 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) [2022-11-16 12:35:29,831 INFO L175 Difference]: Start difference. First operand has 706 places, 2571 transitions, 164001 flow. Second operand 18 states and 2457 transitions. [2022-11-16 12:35:29,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 723 places, 2782 transitions, 176825 flow [2022-11-16 12:35:57,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 714 places, 2782 transitions, 176579 flow, removed 112 selfloop flow, removed 9 redundant places. [2022-11-16 12:35:57,581 INFO L231 Difference]: Finished difference. Result has 721 places, 2679 transitions, 175179 flow [2022-11-16 12:35:57,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=163755, PETRI_DIFFERENCE_MINUEND_PLACES=697, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1645, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=868, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=175179, PETRI_PLACES=721, PETRI_TRANSITIONS=2679} [2022-11-16 12:35:57,584 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 490 predicate places. [2022-11-16 12:35:57,584 INFO L495 AbstractCegarLoop]: Abstraction has has 721 places, 2679 transitions, 175179 flow [2022-11-16 12:35:57,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:35:57,584 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:57,585 INFO L209 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] [2022-11-16 12:35:57,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 12:35:57,585 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:35:57,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:57,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1270367464, now seen corresponding path program 2 times [2022-11-16 12:35:57,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:57,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949656672] [2022-11-16 12:35:57,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:57,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:59,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:59,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949656672] [2022-11-16 12:35:59,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949656672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:59,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:59,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:35:59,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600408728] [2022-11-16 12:35:59,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:59,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:35:59,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:59,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:35:59,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:35:59,250 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-16 12:35:59,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 721 places, 2679 transitions, 175179 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 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) [2022-11-16 12:35:59,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:59,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-16 12:35:59,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:24,540 INFO L130 PetriNetUnfolder]: 8010/14550 cut-off events. [2022-11-16 12:36:24,541 INFO L131 PetriNetUnfolder]: For 2600014/2600410 co-relation queries the response was YES. [2022-11-16 12:36:25,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281225 conditions, 14550 events. 8010/14550 cut-off events. For 2600014/2600410 co-relation queries the response was YES. Maximal size of possible extension queue 788. Compared 116775 event pairs, 394 based on Foata normal form. 199/14637 useless extension candidates. Maximal degree in co-relation 280728. Up to 6754 conditions per place. [2022-11-16 12:36:25,241 INFO L137 encePairwiseOnDemand]: 214/233 looper letters, 2712 selfloop transitions, 1376 changer transitions 0/4308 dead transitions. [2022-11-16 12:36:25,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 740 places, 4308 transitions, 241919 flow [2022-11-16 12:36:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:36:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:36:25,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-16 12:36:25,244 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5935622317596566 [2022-11-16 12:36:25,244 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-16 12:36:25,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-16 12:36:25,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:25,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-16 12:36:25,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.3) internal successors, (2766), 20 states have internal predecessors, (2766), 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) [2022-11-16 12:36:25,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:36:25,249 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 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) [2022-11-16 12:36:25,249 INFO L175 Difference]: Start difference. First operand has 721 places, 2679 transitions, 175179 flow. Second operand 20 states and 2766 transitions. [2022-11-16 12:36:25,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 740 places, 4308 transitions, 241919 flow