./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:44:39,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:44:39,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:44:39,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:44:39,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:44:39,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:44:39,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:44:39,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:44:39,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:44:39,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:44:39,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:44:39,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:44:39,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:44:39,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:44:39,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:44:39,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:44:39,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:44:39,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:44:39,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:44:39,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:44:39,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:44:39,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:44:39,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:44:39,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:44:39,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:44:39,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:44:39,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:44:39,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:44:39,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:44:39,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:44:39,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:44:39,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:44:39,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:44:39,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:44:39,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:44:39,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:44:39,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:44:39,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:44:39,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:44:39,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:44:39,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:44:39,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:44:39,628 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:44:39,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:44:39,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:44:39,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:44:39,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:44:39,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:44:39,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:44:39,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:44:39,635 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:44:39,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:44:39,636 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:44:39,637 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:44:39,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:44:39,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:44:39,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:44:39,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:44:39,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:44:39,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:44:39,638 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:44:39,638 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:44:39,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:44:39,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:44:39,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:44:39,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:44:39,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:44:39,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:44:39,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:44:39,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:44:39,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:44:39,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:44:39,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:44:39,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:44:39,641 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:44:39,641 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:44:39,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:44:39,642 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_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-11-02 20:44:39,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:44:39,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:44:40,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:44:40,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:44:40,005 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:44:40,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-02 20:44:40,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/data/2e0f56073/7618992e62724c6da1b76a299f8597f9/FLAGe5ea7eeac [2022-11-02 20:44:40,682 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:44:40,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-02 20:44:40,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/data/2e0f56073/7618992e62724c6da1b76a299f8597f9/FLAGe5ea7eeac [2022-11-02 20:44:41,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/data/2e0f56073/7618992e62724c6da1b76a299f8597f9 [2022-11-02 20:44:41,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:44:41,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:44:41,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:44:41,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:44:41,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:44:41,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:41,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88753af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41, skipping insertion in model container [2022-11-02 20:44:41,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:41,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:44:41,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:44:41,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:44:41,872 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:44:41,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:44:41,970 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:44:41,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41 WrapperNode [2022-11-02 20:44:41,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:44:41,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:44:41,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:44:41,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:44:41,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,062 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-02 20:44:42,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:44:42,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:44:42,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:44:42,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:44:42,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,110 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:44:42,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:44:42,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:44:42,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:44:42,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (1/1) ... [2022-11-02 20:44:42,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:44:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:44:42,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:44:42,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:44:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:44:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:44:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:44:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:44:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:44:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:44:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:44:42,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:44:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:44:42,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:44:42,232 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:44:42,423 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:44:42,427 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:44:42,753 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:44:42,761 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:44:42,766 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:44:42,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:42 BoogieIcfgContainer [2022-11-02 20:44:42,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:44:42,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:44:42,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:44:42,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:44:42,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:44:41" (1/3) ... [2022-11-02 20:44:42,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295214f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:42, skipping insertion in model container [2022-11-02 20:44:42,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:41" (2/3) ... [2022-11-02 20:44:42,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295214f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:42, skipping insertion in model container [2022-11-02 20:44:42,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:42" (3/3) ... [2022-11-02 20:44:42,784 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-11-02 20:44:42,797 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:44:42,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:44:42,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-02 20:44:42,810 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:44:42,923 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:44:42,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 217 flow [2022-11-02 20:44:43,061 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-11-02 20:44:43,062 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:44:43,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-11-02 20:44:43,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 106 transitions, 217 flow [2022-11-02 20:44:43,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 213 flow [2022-11-02 20:44:43,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:44:43,108 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;@28d9ef8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:44:43,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 20:44:43,145 INFO L130 PetriNetUnfolder]: 4/56 cut-off events. [2022-11-02 20:44:43,146 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:44:43,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:43,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:43,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:43,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:43,156 INFO L85 PathProgramCache]: Analyzing trace with hash 900925616, now seen corresponding path program 1 times [2022-11-02 20:44:43,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:43,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674757485] [2022-11-02 20:44:43,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:43,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:43,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674757485] [2022-11-02 20:44:43,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674757485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:43,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:43,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:44:43,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265465350] [2022-11-02 20:44:43,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:43,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:44:43,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:43,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:44:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:44:43,679 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2022-11-02 20:44:43,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:43,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:43,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2022-11-02 20:44:43,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:43,761 INFO L130 PetriNetUnfolder]: 1/106 cut-off events. [2022-11-02 20:44:43,761 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:44:43,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 106 events. 1/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 2/101 useless extension candidates. Maximal degree in co-relation 47. Up to 9 conditions per place. [2022-11-02 20:44:43,763 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 10 selfloop transitions, 2 changer transitions 1/106 dead transitions. [2022-11-02 20:44:43,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 106 transitions, 239 flow [2022-11-02 20:44:43,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:44:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:44:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2022-11-02 20:44:43,787 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.949685534591195 [2022-11-02 20:44:43,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2022-11-02 20:44:43,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2022-11-02 20:44:43,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:43,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2022-11-02 20:44:43,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:43,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:43,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:43,813 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 213 flow. Second operand 3 states and 302 transitions. [2022-11-02 20:44:43,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 106 transitions, 239 flow [2022-11-02 20:44:43,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 106 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:44:43,824 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 216 flow [2022-11-02 20:44:43,826 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2022-11-02 20:44:43,832 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2022-11-02 20:44:43,832 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 216 flow [2022-11-02 20:44:43,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:43,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:43,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:43,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:44:43,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:43,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:43,836 INFO L85 PathProgramCache]: Analyzing trace with hash 438260885, now seen corresponding path program 1 times [2022-11-02 20:44:43,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:43,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353646771] [2022-11-02 20:44:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:43,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:44,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:44,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353646771] [2022-11-02 20:44:44,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353646771] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:44:44,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831119632] [2022-11-02 20:44:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:44,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:44,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:44:44,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:44:44,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:44:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:44,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:44:44,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:44:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:44,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:44:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:44,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831119632] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:44:44,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:44:44,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 20:44:44,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629570031] [2022-11-02 20:44:44,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:44:44,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:44:44,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:44,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:44:44,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:44:44,317 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-02 20:44:44,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:44,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:44,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-02 20:44:44,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:44,424 INFO L130 PetriNetUnfolder]: 1/112 cut-off events. [2022-11-02 20:44:44,425 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:44:44,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 112 events. 1/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 115. Up to 6 conditions per place. [2022-11-02 20:44:44,428 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2022-11-02 20:44:44,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 278 flow [2022-11-02 20:44:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:44:44,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:44:44,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 868 transitions. [2022-11-02 20:44:44,432 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.909853249475891 [2022-11-02 20:44:44,433 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 868 transitions. [2022-11-02 20:44:44,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 868 transitions. [2022-11-02 20:44:44,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:44,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 868 transitions. [2022-11-02 20:44:44,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.44444444444444) internal successors, (868), 9 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:44,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:44,442 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:44,442 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 216 flow. Second operand 9 states and 868 transitions. [2022-11-02 20:44:44,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 278 flow [2022-11-02 20:44:44,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:44:44,448 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 264 flow [2022-11-02 20:44:44,448 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2022-11-02 20:44:44,449 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 11 predicate places. [2022-11-02 20:44:44,449 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 264 flow [2022-11-02 20:44:44,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:44,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:44,450 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:44,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:44:44,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:44,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:44,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash 432939381, now seen corresponding path program 2 times [2022-11-02 20:44:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:44,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913139338] [2022-11-02 20:44:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:44,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:44,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:44,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913139338] [2022-11-02 20:44:44,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913139338] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:44:44,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345081204] [2022-11-02 20:44:44,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:44:44,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:44,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:44:44,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:44:45,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:44:45,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:44:45,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:44:45,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:44:45,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:44:45,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-02 20:44:45,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-02 20:44:45,269 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:44:45,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-02 20:44:45,338 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:44:45,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-02 20:44:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-02 20:44:45,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:44:45,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345081204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:45,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:44:45,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-02 20:44:45,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974448269] [2022-11-02 20:44:45,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:45,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:44:45,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:44:45,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:44:45,381 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 106 [2022-11-02 20:44:45,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:45,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:45,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 106 [2022-11-02 20:44:45,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:45,836 INFO L130 PetriNetUnfolder]: 231/750 cut-off events. [2022-11-02 20:44:45,837 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:44:45,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 750 events. 231/750 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4013 event pairs, 103 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1225. Up to 361 conditions per place. [2022-11-02 20:44:45,843 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 72 selfloop transitions, 22 changer transitions 0/166 dead transitions. [2022-11-02 20:44:45,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 166 transitions, 568 flow [2022-11-02 20:44:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:44:45,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:44:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2022-11-02 20:44:45,845 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7814465408805031 [2022-11-02 20:44:45,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2022-11-02 20:44:45,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2022-11-02 20:44:45,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:45,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2022-11-02 20:44:45,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:45,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:45,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:45,850 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 264 flow. Second operand 6 states and 497 transitions. [2022-11-02 20:44:45,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 166 transitions, 568 flow [2022-11-02 20:44:45,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 166 transitions, 562 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-02 20:44:45,855 INFO L231 Difference]: Finished difference. Result has 125 places, 129 transitions, 408 flow [2022-11-02 20:44:45,856 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=125, PETRI_TRANSITIONS=129} [2022-11-02 20:44:45,856 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 20 predicate places. [2022-11-02 20:44:45,857 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 129 transitions, 408 flow [2022-11-02 20:44:45,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:45,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:45,858 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:45,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:44:46,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:46,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:46,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:46,075 INFO L85 PathProgramCache]: Analyzing trace with hash 491733010, now seen corresponding path program 1 times [2022-11-02 20:44:46,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:46,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308919821] [2022-11-02 20:44:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:46,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:46,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:46,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308919821] [2022-11-02 20:44:46,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308919821] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:44:46,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911042720] [2022-11-02 20:44:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:46,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:46,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:44:46,279 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:44:46,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:44:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:46,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:44:46,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:44:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:46,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:44:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:46,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911042720] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:44:46,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:44:46,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 20:44:46,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838962897] [2022-11-02 20:44:46,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:44:46,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:44:46,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:46,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:44:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:44:46,566 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-02 20:44:46,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 129 transitions, 408 flow. Second operand has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:46,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:46,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-02 20:44:46,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:46,873 INFO L130 PetriNetUnfolder]: 37/290 cut-off events. [2022-11-02 20:44:46,873 INFO L131 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2022-11-02 20:44:46,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 290 events. 37/290 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 872 event pairs, 4 based on Foata normal form. 4/281 useless extension candidates. Maximal degree in co-relation 392. Up to 49 conditions per place. [2022-11-02 20:44:46,876 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 19 selfloop transitions, 21 changer transitions 0/153 dead transitions. [2022-11-02 20:44:46,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 153 transitions, 588 flow [2022-11-02 20:44:46,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 20:44:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 20:44:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2018 transitions. [2022-11-02 20:44:46,882 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9065588499550764 [2022-11-02 20:44:46,882 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2018 transitions. [2022-11-02 20:44:46,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2018 transitions. [2022-11-02 20:44:46,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:46,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2018 transitions. [2022-11-02 20:44:46,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.0952380952381) internal successors, (2018), 21 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:46,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:46,895 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:46,896 INFO L175 Difference]: Start difference. First operand has 125 places, 129 transitions, 408 flow. Second operand 21 states and 2018 transitions. [2022-11-02 20:44:46,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 153 transitions, 588 flow [2022-11-02 20:44:46,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 588 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:44:46,903 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 538 flow [2022-11-02 20:44:46,903 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=538, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2022-11-02 20:44:46,904 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 45 predicate places. [2022-11-02 20:44:46,904 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 538 flow [2022-11-02 20:44:46,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:46,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:46,906 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:46,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:44:47,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:47,135 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash 656757202, now seen corresponding path program 2 times [2022-11-02 20:44:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:47,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35514734] [2022-11-02 20:44:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:47,556 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:47,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:47,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35514734] [2022-11-02 20:44:47,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35514734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:44:47,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686288641] [2022-11-02 20:44:47,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:44:47,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:47,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:44:47,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:44:47,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:44:47,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:44:47,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:44:47,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:44:47,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:44:47,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-02 20:44:47,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-02 20:44:47,773 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:44:47,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-02 20:44:47,829 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:44:47,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-02 20:44:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 20:44:47,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:44:47,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686288641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:47,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:44:47,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-02 20:44:47,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667155209] [2022-11-02 20:44:47,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:47,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:44:47,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:47,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:44:47,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:47,879 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 106 [2022-11-02 20:44:47,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:47,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:47,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 106 [2022-11-02 20:44:47,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:48,372 INFO L130 PetriNetUnfolder]: 315/1037 cut-off events. [2022-11-02 20:44:48,372 INFO L131 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2022-11-02 20:44:48,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2162 conditions, 1037 events. 315/1037 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6065 event pairs, 133 based on Foata normal form. 4/963 useless extension candidates. Maximal degree in co-relation 2012. Up to 572 conditions per place. [2022-11-02 20:44:48,380 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 73 selfloop transitions, 39 changer transitions 5/199 dead transitions. [2022-11-02 20:44:48,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 199 transitions, 916 flow [2022-11-02 20:44:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:44:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:44:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2022-11-02 20:44:48,383 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2022-11-02 20:44:48,383 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2022-11-02 20:44:48,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2022-11-02 20:44:48,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:48,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2022-11-02 20:44:48,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:48,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:48,386 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:48,387 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 538 flow. Second operand 6 states and 486 transitions. [2022-11-02 20:44:48,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 199 transitions, 916 flow [2022-11-02 20:44:48,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 199 transitions, 892 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 20:44:48,398 INFO L231 Difference]: Finished difference. Result has 154 places, 178 transitions, 802 flow [2022-11-02 20:44:48,398 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=154, PETRI_TRANSITIONS=178} [2022-11-02 20:44:48,402 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 49 predicate places. [2022-11-02 20:44:48,402 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 178 transitions, 802 flow [2022-11-02 20:44:48,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:48,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:48,403 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:48,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:44:48,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:48,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:48,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:48,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1425828848, now seen corresponding path program 1 times [2022-11-02 20:44:48,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:48,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120661019] [2022-11-02 20:44:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:48,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,986 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:48,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:48,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120661019] [2022-11-02 20:44:48,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120661019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:44:48,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387271208] [2022-11-02 20:44:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:48,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:48,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:44:48,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:44:49,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:44:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:44:49,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:44:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:49,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:44:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:49,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387271208] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:44:49,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:44:49,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-02 20:44:49,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251878932] [2022-11-02 20:44:49,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:44:49,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 20:44:49,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:49,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 20:44:49,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-02 20:44:49,506 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-02 20:44:49,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 178 transitions, 802 flow. Second operand has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:49,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:49,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-02 20:44:49,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:49,963 INFO L130 PetriNetUnfolder]: 110/550 cut-off events. [2022-11-02 20:44:49,963 INFO L131 PetriNetUnfolder]: For 304/317 co-relation queries the response was YES. [2022-11-02 20:44:49,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 550 events. 110/550 cut-off events. For 304/317 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2647 event pairs, 8 based on Foata normal form. 7/537 useless extension candidates. Maximal degree in co-relation 992. Up to 116 conditions per place. [2022-11-02 20:44:49,968 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 25 selfloop transitions, 30 changer transitions 0/204 dead transitions. [2022-11-02 20:44:49,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 204 transitions, 1052 flow [2022-11-02 20:44:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 20:44:49,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 20:44:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2878 transitions. [2022-11-02 20:44:49,975 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9050314465408805 [2022-11-02 20:44:49,975 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2878 transitions. [2022-11-02 20:44:49,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2878 transitions. [2022-11-02 20:44:49,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:49,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2878 transitions. [2022-11-02 20:44:49,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 95.93333333333334) internal successors, (2878), 30 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:49,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:49,992 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:49,993 INFO L175 Difference]: Start difference. First operand has 154 places, 178 transitions, 802 flow. Second operand 30 states and 2878 transitions. [2022-11-02 20:44:49,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 204 transitions, 1052 flow [2022-11-02 20:44:49,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 204 transitions, 1020 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-11-02 20:44:50,001 INFO L231 Difference]: Finished difference. Result has 186 places, 188 transitions, 922 flow [2022-11-02 20:44:50,002 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=922, PETRI_PLACES=186, PETRI_TRANSITIONS=188} [2022-11-02 20:44:50,004 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 81 predicate places. [2022-11-02 20:44:50,005 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 188 transitions, 922 flow [2022-11-02 20:44:50,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:50,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:50,006 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:50,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:44:50,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea7fc076-e1c3-498c-8069-6d7b6d78bc19/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:44:50,235 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:50,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:50,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2073879691, now seen corresponding path program 2 times [2022-11-02 20:44:50,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:50,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623070379] [2022-11-02 20:44:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:50,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:44:50,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:50,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623070379] [2022-11-02 20:44:50,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623070379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:50,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:50,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:44:50,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30484561] [2022-11-02 20:44:50,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:50,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:44:50,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:50,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:44:50,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:44:50,799 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 106 [2022-11-02 20:44:50,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 188 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:50,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:50,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 106 [2022-11-02 20:44:50,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:51,248 INFO L130 PetriNetUnfolder]: 321/1097 cut-off events. [2022-11-02 20:44:51,248 INFO L131 PetriNetUnfolder]: For 778/786 co-relation queries the response was YES. [2022-11-02 20:44:51,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2848 conditions, 1097 events. 321/1097 cut-off events. For 778/786 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6399 event pairs, 77 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2626. Up to 538 conditions per place. [2022-11-02 20:44:51,258 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 108 selfloop transitions, 40 changer transitions 0/249 dead transitions. [2022-11-02 20:44:51,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 249 transitions, 1544 flow [2022-11-02 20:44:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:44:51,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:44:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2022-11-02 20:44:51,261 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8160377358490566 [2022-11-02 20:44:51,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2022-11-02 20:44:51,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2022-11-02 20:44:51,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:51,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2022-11-02 20:44:51,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:51,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:51,265 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:51,266 INFO L175 Difference]: Start difference. First operand has 186 places, 188 transitions, 922 flow. Second operand 6 states and 519 transitions. [2022-11-02 20:44:51,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 249 transitions, 1544 flow [2022-11-02 20:44:51,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 249 transitions, 1498 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-02 20:44:51,284 INFO L231 Difference]: Finished difference. Result has 178 places, 219 transitions, 1244 flow [2022-11-02 20:44:51,284 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1244, PETRI_PLACES=178, PETRI_TRANSITIONS=219} [2022-11-02 20:44:51,285 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 73 predicate places. [2022-11-02 20:44:51,286 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 219 transitions, 1244 flow [2022-11-02 20:44:51,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:51,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:51,286 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:51,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:44:51,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:51,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1373859952, now seen corresponding path program 1 times [2022-11-02 20:44:51,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:51,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146784723] [2022-11-02 20:44:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:51,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:44:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146784723] [2022-11-02 20:44:51,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146784723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:51,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:51,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:44:51,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690197181] [2022-11-02 20:44:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:51,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:44:51,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:51,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:44:51,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:44:51,872 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 106 [2022-11-02 20:44:51,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 219 transitions, 1244 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:51,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:51,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 106 [2022-11-02 20:44:51,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:52,391 INFO L130 PetriNetUnfolder]: 432/1376 cut-off events. [2022-11-02 20:44:52,391 INFO L131 PetriNetUnfolder]: For 1521/1528 co-relation queries the response was YES. [2022-11-02 20:44:52,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 1376 events. 432/1376 cut-off events. For 1521/1528 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8483 event pairs, 122 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 3838. Up to 770 conditions per place. [2022-11-02 20:44:52,404 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 115 selfloop transitions, 58 changer transitions 18/290 dead transitions. [2022-11-02 20:44:52,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 290 transitions, 2038 flow [2022-11-02 20:44:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:44:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:44:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2022-11-02 20:44:52,407 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8050314465408805 [2022-11-02 20:44:52,407 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2022-11-02 20:44:52,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2022-11-02 20:44:52,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:52,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2022-11-02 20:44:52,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:52,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:52,410 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:52,411 INFO L175 Difference]: Start difference. First operand has 178 places, 219 transitions, 1244 flow. Second operand 6 states and 512 transitions. [2022-11-02 20:44:52,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 290 transitions, 2038 flow [2022-11-02 20:44:52,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 290 transitions, 2020 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:44:52,429 INFO L231 Difference]: Finished difference. Result has 188 places, 260 transitions, 1746 flow [2022-11-02 20:44:52,430 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1746, PETRI_PLACES=188, PETRI_TRANSITIONS=260} [2022-11-02 20:44:52,430 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 83 predicate places. [2022-11-02 20:44:52,430 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 260 transitions, 1746 flow [2022-11-02 20:44:52,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:52,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:52,431 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:52,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:44:52,432 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:52,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:52,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1228962851, now seen corresponding path program 1 times [2022-11-02 20:44:52,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:52,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646327660] [2022-11-02 20:44:52,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:52,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:44:54,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:54,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646327660] [2022-11-02 20:44:54,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646327660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:54,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:54,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:44:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672280808] [2022-11-02 20:44:54,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:54,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:44:54,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:54,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:44:54,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:44:54,090 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:44:54,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 260 transitions, 1746 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:54,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:54,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:44:54,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:55,270 INFO L130 PetriNetUnfolder]: 602/1868 cut-off events. [2022-11-02 20:44:55,270 INFO L131 PetriNetUnfolder]: For 3035/3049 co-relation queries the response was YES. [2022-11-02 20:44:55,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6137 conditions, 1868 events. 602/1868 cut-off events. For 3035/3049 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12328 event pairs, 47 based on Foata normal form. 16/1870 useless extension candidates. Maximal degree in co-relation 5914. Up to 853 conditions per place. [2022-11-02 20:44:55,291 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 210 selfloop transitions, 77 changer transitions 45/421 dead transitions. [2022-11-02 20:44:55,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 421 transitions, 3468 flow [2022-11-02 20:44:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:44:55,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:44:55,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 888 transitions. [2022-11-02 20:44:55,295 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2022-11-02 20:44:55,295 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 888 transitions. [2022-11-02 20:44:55,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 888 transitions. [2022-11-02 20:44:55,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:55,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 888 transitions. [2022-11-02 20:44:55,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:55,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:55,302 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:55,302 INFO L175 Difference]: Start difference. First operand has 188 places, 260 transitions, 1746 flow. Second operand 12 states and 888 transitions. [2022-11-02 20:44:55,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 421 transitions, 3468 flow [2022-11-02 20:44:55,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 421 transitions, 3388 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-11-02 20:44:55,343 INFO L231 Difference]: Finished difference. Result has 207 places, 296 transitions, 2289 flow [2022-11-02 20:44:55,344 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1678, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2289, PETRI_PLACES=207, PETRI_TRANSITIONS=296} [2022-11-02 20:44:55,345 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 102 predicate places. [2022-11-02 20:44:55,345 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 296 transitions, 2289 flow [2022-11-02 20:44:55,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:55,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:55,346 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:55,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:44:55,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:55,347 INFO L85 PathProgramCache]: Analyzing trace with hash 723428963, now seen corresponding path program 2 times [2022-11-02 20:44:55,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:55,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838492224] [2022-11-02 20:44:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:55,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:44:56,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:56,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838492224] [2022-11-02 20:44:56,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838492224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:56,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:56,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:44:56,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188685062] [2022-11-02 20:44:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:56,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:44:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:56,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:44:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:44:56,766 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:44:56,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 296 transitions, 2289 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:56,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:56,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:44:56,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:44:58,390 INFO L130 PetriNetUnfolder]: 569/1743 cut-off events. [2022-11-02 20:44:58,391 INFO L131 PetriNetUnfolder]: For 4655/4676 co-relation queries the response was YES. [2022-11-02 20:44:58,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6702 conditions, 1743 events. 569/1743 cut-off events. For 4655/4676 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11472 event pairs, 62 based on Foata normal form. 13/1745 useless extension candidates. Maximal degree in co-relation 6470. Up to 869 conditions per place. [2022-11-02 20:44:58,415 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 191 selfloop transitions, 80 changer transitions 26/386 dead transitions. [2022-11-02 20:44:58,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 386 transitions, 3442 flow [2022-11-02 20:44:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:44:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:44:58,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 699 transitions. [2022-11-02 20:44:58,420 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7327044025157232 [2022-11-02 20:44:58,421 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 699 transitions. [2022-11-02 20:44:58,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 699 transitions. [2022-11-02 20:44:58,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:44:58,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 699 transitions. [2022-11-02 20:44:58,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:58,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:58,428 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:58,429 INFO L175 Difference]: Start difference. First operand has 207 places, 296 transitions, 2289 flow. Second operand 9 states and 699 transitions. [2022-11-02 20:44:58,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 386 transitions, 3442 flow [2022-11-02 20:44:58,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 386 transitions, 3412 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-11-02 20:44:58,515 INFO L231 Difference]: Finished difference. Result has 215 places, 300 transitions, 2496 flow [2022-11-02 20:44:58,517 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2264, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2496, PETRI_PLACES=215, PETRI_TRANSITIONS=300} [2022-11-02 20:44:58,517 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 110 predicate places. [2022-11-02 20:44:58,518 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 300 transitions, 2496 flow [2022-11-02 20:44:58,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:58,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:44:58,519 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:58,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:44:58,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:44:58,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:58,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1519693021, now seen corresponding path program 3 times [2022-11-02 20:44:58,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:58,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968191429] [2022-11-02 20:44:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:58,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:59,960 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:44:59,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:59,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968191429] [2022-11-02 20:44:59,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968191429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:59,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:59,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:44:59,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861628013] [2022-11-02 20:44:59,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:59,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:44:59,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:59,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:44:59,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:44:59,966 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:44:59,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 300 transitions, 2496 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:59,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:59,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:44:59,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:01,926 INFO L130 PetriNetUnfolder]: 1034/3196 cut-off events. [2022-11-02 20:45:01,927 INFO L131 PetriNetUnfolder]: For 10255/10288 co-relation queries the response was YES. [2022-11-02 20:45:01,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12580 conditions, 3196 events. 1034/3196 cut-off events. For 10255/10288 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 25133 event pairs, 131 based on Foata normal form. 29/3199 useless extension candidates. Maximal degree in co-relation 12345. Up to 935 conditions per place. [2022-11-02 20:45:01,978 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 370 selfloop transitions, 98 changer transitions 28/585 dead transitions. [2022-11-02 20:45:01,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 585 transitions, 6046 flow [2022-11-02 20:45:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:45:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:45:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 803 transitions. [2022-11-02 20:45:01,981 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7575471698113208 [2022-11-02 20:45:01,982 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 803 transitions. [2022-11-02 20:45:01,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 803 transitions. [2022-11-02 20:45:01,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:01,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 803 transitions. [2022-11-02 20:45:01,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.3) internal successors, (803), 10 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:01,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:01,989 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:01,989 INFO L175 Difference]: Start difference. First operand has 215 places, 300 transitions, 2496 flow. Second operand 10 states and 803 transitions. [2022-11-02 20:45:01,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 585 transitions, 6046 flow [2022-11-02 20:45:02,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 585 transitions, 5910 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-02 20:45:02,091 INFO L231 Difference]: Finished difference. Result has 226 places, 379 transitions, 3906 flow [2022-11-02 20:45:02,092 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2431, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3906, PETRI_PLACES=226, PETRI_TRANSITIONS=379} [2022-11-02 20:45:02,093 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 121 predicate places. [2022-11-02 20:45:02,093 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 379 transitions, 3906 flow [2022-11-02 20:45:02,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:02,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:02,094 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:02,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:45:02,095 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:02,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:02,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1905079665, now seen corresponding path program 4 times [2022-11-02 20:45:02,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:02,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478003176] [2022-11-02 20:45:02,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:02,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:03,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:03,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478003176] [2022-11-02 20:45:03,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478003176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:03,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:03,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:03,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411586042] [2022-11-02 20:45:03,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:03,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:03,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:03,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:03,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:03,617 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:03,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 379 transitions, 3906 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:03,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:03,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:03,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:05,991 INFO L130 PetriNetUnfolder]: 1045/3113 cut-off events. [2022-11-02 20:45:05,992 INFO L131 PetriNetUnfolder]: For 13873/13908 co-relation queries the response was YES. [2022-11-02 20:45:06,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13481 conditions, 3113 events. 1045/3113 cut-off events. For 13873/13908 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24056 event pairs, 258 based on Foata normal form. 28/3123 useless extension candidates. Maximal degree in co-relation 13240. Up to 1595 conditions per place. [2022-11-02 20:45:06,058 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 219 selfloop transitions, 149 changer transitions 20/477 dead transitions. [2022-11-02 20:45:06,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 477 transitions, 5418 flow [2022-11-02 20:45:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:45:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:45:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 893 transitions. [2022-11-02 20:45:06,061 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7020440251572327 [2022-11-02 20:45:06,061 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 893 transitions. [2022-11-02 20:45:06,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 893 transitions. [2022-11-02 20:45:06,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:06,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 893 transitions. [2022-11-02 20:45:06,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.41666666666667) internal successors, (893), 12 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:06,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:06,068 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:06,068 INFO L175 Difference]: Start difference. First operand has 226 places, 379 transitions, 3906 flow. Second operand 12 states and 893 transitions. [2022-11-02 20:45:06,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 477 transitions, 5418 flow [2022-11-02 20:45:06,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 477 transitions, 5394 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:06,218 INFO L231 Difference]: Finished difference. Result has 241 places, 394 transitions, 4437 flow [2022-11-02 20:45:06,219 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3886, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4437, PETRI_PLACES=241, PETRI_TRANSITIONS=394} [2022-11-02 20:45:06,220 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 136 predicate places. [2022-11-02 20:45:06,221 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 394 transitions, 4437 flow [2022-11-02 20:45:06,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:06,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:06,222 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:06,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:45:06,222 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:06,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:06,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1864364027, now seen corresponding path program 5 times [2022-11-02 20:45:06,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:06,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630045789] [2022-11-02 20:45:06,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:06,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:07,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:07,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630045789] [2022-11-02 20:45:07,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630045789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:07,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:07,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907693128] [2022-11-02 20:45:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:07,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:07,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:07,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:07,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:07,593 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:07,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 394 transitions, 4437 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:07,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:07,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:07,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:09,644 INFO L130 PetriNetUnfolder]: 1071/3201 cut-off events. [2022-11-02 20:45:09,644 INFO L131 PetriNetUnfolder]: For 17272/17307 co-relation queries the response was YES. [2022-11-02 20:45:09,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14654 conditions, 3201 events. 1071/3201 cut-off events. For 17272/17307 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24871 event pairs, 202 based on Foata normal form. 29/3203 useless extension candidates. Maximal degree in co-relation 14408. Up to 945 conditions per place. [2022-11-02 20:45:09,697 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 413 selfloop transitions, 100 changer transitions 28/630 dead transitions. [2022-11-02 20:45:09,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 630 transitions, 7662 flow [2022-11-02 20:45:09,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:45:09,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:45:09,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2022-11-02 20:45:09,701 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7238421955403087 [2022-11-02 20:45:09,701 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 844 transitions. [2022-11-02 20:45:09,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 844 transitions. [2022-11-02 20:45:09,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:09,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 844 transitions. [2022-11-02 20:45:09,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.72727272727273) internal successors, (844), 11 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:09,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:09,709 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:09,709 INFO L175 Difference]: Start difference. First operand has 241 places, 394 transitions, 4437 flow. Second operand 11 states and 844 transitions. [2022-11-02 20:45:09,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 630 transitions, 7662 flow [2022-11-02 20:45:09,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 630 transitions, 7330 flow, removed 19 selfloop flow, removed 4 redundant places. [2022-11-02 20:45:09,867 INFO L231 Difference]: Finished difference. Result has 254 places, 420 transitions, 4930 flow [2022-11-02 20:45:09,868 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4177, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4930, PETRI_PLACES=254, PETRI_TRANSITIONS=420} [2022-11-02 20:45:09,868 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 149 predicate places. [2022-11-02 20:45:09,869 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 420 transitions, 4930 flow [2022-11-02 20:45:09,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:09,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:09,870 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:09,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:45:09,870 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:09,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:09,871 INFO L85 PathProgramCache]: Analyzing trace with hash 812752821, now seen corresponding path program 6 times [2022-11-02 20:45:09,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:09,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688004493] [2022-11-02 20:45:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:09,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:11,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688004493] [2022-11-02 20:45:11,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688004493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:11,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:11,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817901893] [2022-11-02 20:45:11,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:11,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:11,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:11,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:11,225 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:11,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 420 transitions, 4930 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:11,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:11,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:11,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:13,150 INFO L130 PetriNetUnfolder]: 1088/3224 cut-off events. [2022-11-02 20:45:13,150 INFO L131 PetriNetUnfolder]: For 20537/20581 co-relation queries the response was YES. [2022-11-02 20:45:13,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15521 conditions, 3224 events. 1088/3224 cut-off events. For 20537/20581 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 25040 event pairs, 261 based on Foata normal form. 28/3228 useless extension candidates. Maximal degree in co-relation 15386. Up to 1639 conditions per place. [2022-11-02 20:45:13,190 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 246 selfloop transitions, 160 changer transitions 21/516 dead transitions. [2022-11-02 20:45:13,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 516 transitions, 6658 flow [2022-11-02 20:45:13,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:45:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:45:13,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 751 transitions. [2022-11-02 20:45:13,195 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7084905660377359 [2022-11-02 20:45:13,195 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 751 transitions. [2022-11-02 20:45:13,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 751 transitions. [2022-11-02 20:45:13,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:13,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 751 transitions. [2022-11-02 20:45:13,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.1) internal successors, (751), 10 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:13,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:13,201 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:13,202 INFO L175 Difference]: Start difference. First operand has 254 places, 420 transitions, 4930 flow. Second operand 10 states and 751 transitions. [2022-11-02 20:45:13,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 516 transitions, 6658 flow [2022-11-02 20:45:13,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 516 transitions, 6545 flow, removed 53 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:13,404 INFO L231 Difference]: Finished difference. Result has 267 places, 440 transitions, 5569 flow [2022-11-02 20:45:13,405 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4819, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5569, PETRI_PLACES=267, PETRI_TRANSITIONS=440} [2022-11-02 20:45:13,406 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 162 predicate places. [2022-11-02 20:45:13,406 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 440 transitions, 5569 flow [2022-11-02 20:45:13,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:13,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:13,417 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:13,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:45:13,417 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:13,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash 580738289, now seen corresponding path program 7 times [2022-11-02 20:45:13,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:13,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257509079] [2022-11-02 20:45:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:13,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:14,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:14,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257509079] [2022-11-02 20:45:14,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257509079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:14,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:14,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:14,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077822402] [2022-11-02 20:45:14,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:14,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:14,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:14,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:14,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:14,542 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:14,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 440 transitions, 5569 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:14,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:14,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:14,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:16,786 INFO L130 PetriNetUnfolder]: 1084/3280 cut-off events. [2022-11-02 20:45:16,787 INFO L131 PetriNetUnfolder]: For 24336/24381 co-relation queries the response was YES. [2022-11-02 20:45:16,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16226 conditions, 3280 events. 1084/3280 cut-off events. For 24336/24381 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 25671 event pairs, 208 based on Foata normal form. 31/3283 useless extension candidates. Maximal degree in co-relation 16076. Up to 943 conditions per place. [2022-11-02 20:45:16,830 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 444 selfloop transitions, 114 changer transitions 38/685 dead transitions. [2022-11-02 20:45:16,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 685 transitions, 8864 flow [2022-11-02 20:45:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:45:16,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:45:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 877 transitions. [2022-11-02 20:45:16,834 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7521440823327615 [2022-11-02 20:45:16,834 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 877 transitions. [2022-11-02 20:45:16,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 877 transitions. [2022-11-02 20:45:16,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:16,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 877 transitions. [2022-11-02 20:45:16,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.72727272727273) internal successors, (877), 11 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:16,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:16,841 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:16,841 INFO L175 Difference]: Start difference. First operand has 267 places, 440 transitions, 5569 flow. Second operand 11 states and 877 transitions. [2022-11-02 20:45:16,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 685 transitions, 8864 flow [2022-11-02 20:45:17,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 685 transitions, 8694 flow, removed 52 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:17,075 INFO L231 Difference]: Finished difference. Result has 280 places, 462 transitions, 6118 flow [2022-11-02 20:45:17,076 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5414, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6118, PETRI_PLACES=280, PETRI_TRANSITIONS=462} [2022-11-02 20:45:17,076 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 175 predicate places. [2022-11-02 20:45:17,077 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 462 transitions, 6118 flow [2022-11-02 20:45:17,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:17,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:17,078 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:17,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:45:17,078 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1923316071, now seen corresponding path program 8 times [2022-11-02 20:45:17,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146156881] [2022-11-02 20:45:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:18,485 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:18,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:18,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146156881] [2022-11-02 20:45:18,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146156881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:18,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:18,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:18,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391189574] [2022-11-02 20:45:18,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:18,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:18,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:18,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:18,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:18,489 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:18,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 462 transitions, 6118 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:18,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:18,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:18,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:20,721 INFO L130 PetriNetUnfolder]: 1087/3215 cut-off events. [2022-11-02 20:45:20,722 INFO L131 PetriNetUnfolder]: For 28738/28783 co-relation queries the response was YES. [2022-11-02 20:45:20,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16706 conditions, 3215 events. 1087/3215 cut-off events. For 28738/28783 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 25115 event pairs, 205 based on Foata normal form. 28/3217 useless extension candidates. Maximal degree in co-relation 16546. Up to 1625 conditions per place. [2022-11-02 20:45:20,765 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 265 selfloop transitions, 179 changer transitions 22/555 dead transitions. [2022-11-02 20:45:20,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 555 transitions, 8056 flow [2022-11-02 20:45:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:45:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 20:45:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 997 transitions. [2022-11-02 20:45:20,769 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.671832884097035 [2022-11-02 20:45:20,769 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 997 transitions. [2022-11-02 20:45:20,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 997 transitions. [2022-11-02 20:45:20,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:20,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 997 transitions. [2022-11-02 20:45:20,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.21428571428571) internal successors, (997), 14 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:20,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:20,776 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:20,776 INFO L175 Difference]: Start difference. First operand has 280 places, 462 transitions, 6118 flow. Second operand 14 states and 997 transitions. [2022-11-02 20:45:20,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 555 transitions, 8056 flow [2022-11-02 20:45:21,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 555 transitions, 7742 flow, removed 65 selfloop flow, removed 4 redundant places. [2022-11-02 20:45:21,041 INFO L231 Difference]: Finished difference. Result has 297 places, 487 transitions, 6781 flow [2022-11-02 20:45:21,041 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5815, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6781, PETRI_PLACES=297, PETRI_TRANSITIONS=487} [2022-11-02 20:45:21,042 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 192 predicate places. [2022-11-02 20:45:21,042 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 487 transitions, 6781 flow [2022-11-02 20:45:21,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:21,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:21,043 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:21,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:45:21,044 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:21,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash 138609596, now seen corresponding path program 1 times [2022-11-02 20:45:21,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:21,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505781709] [2022-11-02 20:45:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:22,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:22,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505781709] [2022-11-02 20:45:22,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505781709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:22,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:22,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:22,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417973696] [2022-11-02 20:45:22,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:22,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:22,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:22,297 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:45:22,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 487 transitions, 6781 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:22,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:22,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:45:22,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:24,500 INFO L130 PetriNetUnfolder]: 998/3111 cut-off events. [2022-11-02 20:45:24,500 INFO L131 PetriNetUnfolder]: For 29042/29063 co-relation queries the response was YES. [2022-11-02 20:45:24,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16343 conditions, 3111 events. 998/3111 cut-off events. For 29042/29063 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 24556 event pairs, 142 based on Foata normal form. 5/3083 useless extension candidates. Maximal degree in co-relation 16167. Up to 827 conditions per place. [2022-11-02 20:45:24,542 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 476 selfloop transitions, 127 changer transitions 45/746 dead transitions. [2022-11-02 20:45:24,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 746 transitions, 10638 flow [2022-11-02 20:45:24,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:45:24,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 20:45:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1219 transitions. [2022-11-02 20:45:24,554 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.71875 [2022-11-02 20:45:24,554 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1219 transitions. [2022-11-02 20:45:24,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1219 transitions. [2022-11-02 20:45:24,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:24,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1219 transitions. [2022-11-02 20:45:24,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 76.1875) internal successors, (1219), 16 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:24,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:24,563 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:24,563 INFO L175 Difference]: Start difference. First operand has 297 places, 487 transitions, 6781 flow. Second operand 16 states and 1219 transitions. [2022-11-02 20:45:24,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 746 transitions, 10638 flow [2022-11-02 20:45:24,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 746 transitions, 10338 flow, removed 120 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:24,813 INFO L231 Difference]: Finished difference. Result has 319 places, 534 transitions, 7611 flow [2022-11-02 20:45:24,813 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6536, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7611, PETRI_PLACES=319, PETRI_TRANSITIONS=534} [2022-11-02 20:45:24,814 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 214 predicate places. [2022-11-02 20:45:24,814 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 534 transitions, 7611 flow [2022-11-02 20:45:24,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:24,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:24,814 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:24,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:45:24,815 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:24,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:24,815 INFO L85 PathProgramCache]: Analyzing trace with hash -462328503, now seen corresponding path program 9 times [2022-11-02 20:45:24,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:24,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929701447] [2022-11-02 20:45:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:24,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:26,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:26,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929701447] [2022-11-02 20:45:26,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929701447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:26,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:26,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:26,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251217019] [2022-11-02 20:45:26,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:26,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:26,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:26,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:26,266 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:26,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 534 transitions, 7611 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:26,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:26,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:26,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:28,563 INFO L130 PetriNetUnfolder]: 1074/3170 cut-off events. [2022-11-02 20:45:28,563 INFO L131 PetriNetUnfolder]: For 31679/31723 co-relation queries the response was YES. [2022-11-02 20:45:28,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17441 conditions, 3170 events. 1074/3170 cut-off events. For 31679/31723 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24606 event pairs, 181 based on Foata normal form. 27/3170 useless extension candidates. Maximal degree in co-relation 17248. Up to 943 conditions per place. [2022-11-02 20:45:28,601 INFO L137 encePairwiseOnDemand]: 85/106 looper letters, 438 selfloop transitions, 152 changer transitions 30/709 dead transitions. [2022-11-02 20:45:28,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 709 transitions, 10398 flow [2022-11-02 20:45:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:45:28,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:45:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 874 transitions. [2022-11-02 20:45:28,604 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7495711835334476 [2022-11-02 20:45:28,604 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 874 transitions. [2022-11-02 20:45:28,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 874 transitions. [2022-11-02 20:45:28,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:28,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 874 transitions. [2022-11-02 20:45:28,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.45454545454545) internal successors, (874), 11 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,613 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,613 INFO L175 Difference]: Start difference. First operand has 319 places, 534 transitions, 7611 flow. Second operand 11 states and 874 transitions. [2022-11-02 20:45:28,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 709 transitions, 10398 flow [2022-11-02 20:45:28,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 709 transitions, 10352 flow, removed 16 selfloop flow, removed 3 redundant places. [2022-11-02 20:45:28,858 INFO L231 Difference]: Finished difference. Result has 327 places, 546 transitions, 8265 flow [2022-11-02 20:45:28,858 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7576, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8265, PETRI_PLACES=327, PETRI_TRANSITIONS=546} [2022-11-02 20:45:28,859 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 222 predicate places. [2022-11-02 20:45:28,859 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 546 transitions, 8265 flow [2022-11-02 20:45:28,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:28,860 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:28,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:45:28,861 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:28,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1159954923, now seen corresponding path program 10 times [2022-11-02 20:45:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:28,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834408826] [2022-11-02 20:45:28,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:28,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:30,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:30,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834408826] [2022-11-02 20:45:30,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834408826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:30,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:30,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:30,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58655394] [2022-11-02 20:45:30,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:30,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:30,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:30,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:30,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:30,051 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:30,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 546 transitions, 8265 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:30,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:30,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:32,018 INFO L130 PetriNetUnfolder]: 1077/3197 cut-off events. [2022-11-02 20:45:32,018 INFO L131 PetriNetUnfolder]: For 37308/37353 co-relation queries the response was YES. [2022-11-02 20:45:32,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18339 conditions, 3197 events. 1077/3197 cut-off events. For 37308/37353 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24916 event pairs, 138 based on Foata normal form. 29/3196 useless extension candidates. Maximal degree in co-relation 18142. Up to 943 conditions per place. [2022-11-02 20:45:32,063 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 455 selfloop transitions, 140 changer transitions 26/710 dead transitions. [2022-11-02 20:45:32,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 710 transitions, 11055 flow [2022-11-02 20:45:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:45:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:45:32,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 852 transitions. [2022-11-02 20:45:32,066 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7307032590051458 [2022-11-02 20:45:32,066 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 852 transitions. [2022-11-02 20:45:32,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 852 transitions. [2022-11-02 20:45:32,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:32,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 852 transitions. [2022-11-02 20:45:32,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,073 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,073 INFO L175 Difference]: Start difference. First operand has 327 places, 546 transitions, 8265 flow. Second operand 11 states and 852 transitions. [2022-11-02 20:45:32,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 710 transitions, 11055 flow [2022-11-02 20:45:32,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 710 transitions, 10830 flow, removed 40 selfloop flow, removed 4 redundant places. [2022-11-02 20:45:32,347 INFO L231 Difference]: Finished difference. Result has 337 places, 556 transitions, 8664 flow [2022-11-02 20:45:32,347 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8077, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8664, PETRI_PLACES=337, PETRI_TRANSITIONS=556} [2022-11-02 20:45:32,348 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 232 predicate places. [2022-11-02 20:45:32,348 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 556 transitions, 8664 flow [2022-11-02 20:45:32,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:32,348 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:32,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:45:32,349 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash -922322257, now seen corresponding path program 11 times [2022-11-02 20:45:32,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:32,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216176752] [2022-11-02 20:45:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:32,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:33,578 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:33,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:33,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216176752] [2022-11-02 20:45:33,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216176752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:33,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:33,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:33,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111835257] [2022-11-02 20:45:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:33,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:33,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:33,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:33,580 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:33,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 556 transitions, 8664 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:33,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:33,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:33,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:35,700 INFO L130 PetriNetUnfolder]: 1075/3185 cut-off events. [2022-11-02 20:45:35,700 INFO L131 PetriNetUnfolder]: For 38457/38501 co-relation queries the response was YES. [2022-11-02 20:45:35,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18543 conditions, 3185 events. 1075/3185 cut-off events. For 38457/38501 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 24833 event pairs, 183 based on Foata normal form. 28/3184 useless extension candidates. Maximal degree in co-relation 18342. Up to 943 conditions per place. [2022-11-02 20:45:35,730 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 449 selfloop transitions, 150 changer transitions 27/715 dead transitions. [2022-11-02 20:45:35,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 715 transitions, 11270 flow [2022-11-02 20:45:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:45:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:45:35,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 860 transitions. [2022-11-02 20:45:35,734 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7375643224699828 [2022-11-02 20:45:35,734 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 860 transitions. [2022-11-02 20:45:35,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 860 transitions. [2022-11-02 20:45:35,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:35,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 860 transitions. [2022-11-02 20:45:35,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.18181818181819) internal successors, (860), 11 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,739 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,739 INFO L175 Difference]: Start difference. First operand has 337 places, 556 transitions, 8664 flow. Second operand 11 states and 860 transitions. [2022-11-02 20:45:35,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 715 transitions, 11270 flow [2022-11-02 20:45:35,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 715 transitions, 11058 flow, removed 15 selfloop flow, removed 5 redundant places. [2022-11-02 20:45:35,984 INFO L231 Difference]: Finished difference. Result has 345 places, 560 transitions, 8925 flow [2022-11-02 20:45:35,985 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8454, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8925, PETRI_PLACES=345, PETRI_TRANSITIONS=560} [2022-11-02 20:45:35,986 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 240 predicate places. [2022-11-02 20:45:35,986 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 560 transitions, 8925 flow [2022-11-02 20:45:35,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:35,987 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:35,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:45:35,987 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2013931571, now seen corresponding path program 12 times [2022-11-02 20:45:35,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:35,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865108685] [2022-11-02 20:45:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:35,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:36,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:36,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865108685] [2022-11-02 20:45:36,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865108685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:36,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:36,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:36,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012938535] [2022-11-02 20:45:36,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:36,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:36,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:36,864 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:36,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 560 transitions, 8925 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:36,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:36,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:38,663 INFO L130 PetriNetUnfolder]: 1085/3226 cut-off events. [2022-11-02 20:45:38,664 INFO L131 PetriNetUnfolder]: For 41145/41190 co-relation queries the response was YES. [2022-11-02 20:45:38,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18943 conditions, 3226 events. 1085/3226 cut-off events. For 41145/41190 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 25254 event pairs, 218 based on Foata normal form. 29/3222 useless extension candidates. Maximal degree in co-relation 18739. Up to 1637 conditions per place. [2022-11-02 20:45:38,762 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 338 selfloop transitions, 193 changer transitions 21/641 dead transitions. [2022-11-02 20:45:38,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 641 transitions, 10838 flow [2022-11-02 20:45:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:45:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:45:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 741 transitions. [2022-11-02 20:45:38,764 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6990566037735849 [2022-11-02 20:45:38,765 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 741 transitions. [2022-11-02 20:45:38,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 741 transitions. [2022-11-02 20:45:38,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:38,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 741 transitions. [2022-11-02 20:45:38,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.1) internal successors, (741), 10 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,769 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,769 INFO L175 Difference]: Start difference. First operand has 345 places, 560 transitions, 8925 flow. Second operand 10 states and 741 transitions. [2022-11-02 20:45:38,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 641 transitions, 10838 flow [2022-11-02 20:45:39,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 641 transitions, 10602 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-02 20:45:39,066 INFO L231 Difference]: Finished difference. Result has 353 places, 573 transitions, 9341 flow [2022-11-02 20:45:39,066 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8690, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9341, PETRI_PLACES=353, PETRI_TRANSITIONS=573} [2022-11-02 20:45:39,067 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 248 predicate places. [2022-11-02 20:45:39,067 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 573 transitions, 9341 flow [2022-11-02 20:45:39,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:39,068 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:39,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:45:39,068 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash 215586857, now seen corresponding path program 13 times [2022-11-02 20:45:39,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:39,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128853282] [2022-11-02 20:45:39,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:39,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:39,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:39,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128853282] [2022-11-02 20:45:39,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128853282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:39,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:39,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:39,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882566754] [2022-11-02 20:45:39,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:39,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:39,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:39,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:39,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:39,954 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:39,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 573 transitions, 9341 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:39,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:39,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:41,669 INFO L130 PetriNetUnfolder]: 1083/3205 cut-off events. [2022-11-02 20:45:41,669 INFO L131 PetriNetUnfolder]: For 42724/42768 co-relation queries the response was YES. [2022-11-02 20:45:41,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19154 conditions, 3205 events. 1083/3205 cut-off events. For 42724/42768 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 25128 event pairs, 239 based on Foata normal form. 28/3214 useless extension candidates. Maximal degree in co-relation 18937. Up to 1664 conditions per place. [2022-11-02 20:45:41,712 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 332 selfloop transitions, 210 changer transitions 20/651 dead transitions. [2022-11-02 20:45:41,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 651 transitions, 11122 flow [2022-11-02 20:45:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:45:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:45:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 825 transitions. [2022-11-02 20:45:41,716 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7075471698113207 [2022-11-02 20:45:41,716 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 825 transitions. [2022-11-02 20:45:41,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 825 transitions. [2022-11-02 20:45:41,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:41,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 825 transitions. [2022-11-02 20:45:41,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,720 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,721 INFO L175 Difference]: Start difference. First operand has 353 places, 573 transitions, 9341 flow. Second operand 11 states and 825 transitions. [2022-11-02 20:45:41,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 651 transitions, 11122 flow [2022-11-02 20:45:42,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 651 transitions, 10788 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-11-02 20:45:42,132 INFO L231 Difference]: Finished difference. Result has 361 places, 575 transitions, 9482 flow [2022-11-02 20:45:42,133 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9011, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9482, PETRI_PLACES=361, PETRI_TRANSITIONS=575} [2022-11-02 20:45:42,133 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 256 predicate places. [2022-11-02 20:45:42,133 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 575 transitions, 9482 flow [2022-11-02 20:45:42,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:42,134 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:42,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:45:42,134 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:42,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:42,135 INFO L85 PathProgramCache]: Analyzing trace with hash -680757553, now seen corresponding path program 14 times [2022-11-02 20:45:42,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:42,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530105157] [2022-11-02 20:45:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:43,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:43,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530105157] [2022-11-02 20:45:43,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530105157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:43,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:43,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:43,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484961079] [2022-11-02 20:45:43,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:43,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:43,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:43,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:43,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:43,087 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:43,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 575 transitions, 9482 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:43,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:43,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:45,173 INFO L130 PetriNetUnfolder]: 1082/3226 cut-off events. [2022-11-02 20:45:45,173 INFO L131 PetriNetUnfolder]: For 44058/44103 co-relation queries the response was YES. [2022-11-02 20:45:45,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19355 conditions, 3226 events. 1082/3226 cut-off events. For 44058/44103 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 25322 event pairs, 203 based on Foata normal form. 29/3226 useless extension candidates. Maximal degree in co-relation 19131. Up to 1654 conditions per place. [2022-11-02 20:45:45,218 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 337 selfloop transitions, 205 changer transitions 22/653 dead transitions. [2022-11-02 20:45:45,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 653 transitions, 11395 flow [2022-11-02 20:45:45,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:45:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:45:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 945 transitions. [2022-11-02 20:45:45,221 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6857764876632801 [2022-11-02 20:45:45,221 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 945 transitions. [2022-11-02 20:45:45,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 945 transitions. [2022-11-02 20:45:45,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:45,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 945 transitions. [2022-11-02 20:45:45,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.6923076923077) internal successors, (945), 13 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,226 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,226 INFO L175 Difference]: Start difference. First operand has 361 places, 575 transitions, 9482 flow. Second operand 13 states and 945 transitions. [2022-11-02 20:45:45,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 653 transitions, 11395 flow [2022-11-02 20:45:45,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 653 transitions, 10968 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-02 20:45:45,538 INFO L231 Difference]: Finished difference. Result has 370 places, 586 transitions, 9805 flow [2022-11-02 20:45:45,538 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9071, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=9805, PETRI_PLACES=370, PETRI_TRANSITIONS=586} [2022-11-02 20:45:45,539 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 265 predicate places. [2022-11-02 20:45:45,539 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 586 transitions, 9805 flow [2022-11-02 20:45:45,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:45,539 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:45,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:45:45,540 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:45,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:45,540 INFO L85 PathProgramCache]: Analyzing trace with hash -435883879, now seen corresponding path program 15 times [2022-11-02 20:45:45,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:45,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380838103] [2022-11-02 20:45:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:45,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:46,470 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:46,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:46,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380838103] [2022-11-02 20:45:46,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380838103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:46,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:46,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:46,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442359633] [2022-11-02 20:45:46,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:46,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:46,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:46,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:46,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:46,473 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:46,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 586 transitions, 9805 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:46,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:46,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:46,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:48,308 INFO L130 PetriNetUnfolder]: 1087/3232 cut-off events. [2022-11-02 20:45:48,308 INFO L131 PetriNetUnfolder]: For 44775/44819 co-relation queries the response was YES. [2022-11-02 20:45:48,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19492 conditions, 3232 events. 1087/3232 cut-off events. For 44775/44819 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 25425 event pairs, 265 based on Foata normal form. 28/3223 useless extension candidates. Maximal degree in co-relation 19262. Up to 1642 conditions per place. [2022-11-02 20:45:48,353 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 339 selfloop transitions, 213 changer transitions 21/662 dead transitions. [2022-11-02 20:45:48,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 662 transitions, 11755 flow [2022-11-02 20:45:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:45:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:45:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 937 transitions. [2022-11-02 20:45:48,356 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6799709724238027 [2022-11-02 20:45:48,356 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 937 transitions. [2022-11-02 20:45:48,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 937 transitions. [2022-11-02 20:45:48,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:48,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 937 transitions. [2022-11-02 20:45:48,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.07692307692308) internal successors, (937), 13 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,361 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,361 INFO L175 Difference]: Start difference. First operand has 370 places, 586 transitions, 9805 flow. Second operand 13 states and 937 transitions. [2022-11-02 20:45:48,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 662 transitions, 11755 flow [2022-11-02 20:45:48,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 662 transitions, 11360 flow, removed 42 selfloop flow, removed 6 redundant places. [2022-11-02 20:45:48,692 INFO L231 Difference]: Finished difference. Result has 380 places, 599 transitions, 10172 flow [2022-11-02 20:45:48,692 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9426, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10172, PETRI_PLACES=380, PETRI_TRANSITIONS=599} [2022-11-02 20:45:48,692 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 275 predicate places. [2022-11-02 20:45:48,693 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 599 transitions, 10172 flow [2022-11-02 20:45:48,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:48,693 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:48,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:45:48,693 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:48,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1929394253, now seen corresponding path program 16 times [2022-11-02 20:45:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:48,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390841156] [2022-11-02 20:45:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:48,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:49,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:49,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390841156] [2022-11-02 20:45:49,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390841156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:49,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:49,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:45:49,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568854394] [2022-11-02 20:45:49,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:49,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:45:49,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:49,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:45:49,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:45:49,665 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:45:49,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 599 transitions, 10172 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:49,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:49,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:45:49,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:51,552 INFO L130 PetriNetUnfolder]: 1086/3239 cut-off events. [2022-11-02 20:45:51,552 INFO L131 PetriNetUnfolder]: For 45831/45875 co-relation queries the response was YES. [2022-11-02 20:45:51,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19595 conditions, 3239 events. 1086/3239 cut-off events. For 45831/45875 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 25528 event pairs, 263 based on Foata normal form. 28/3234 useless extension candidates. Maximal degree in co-relation 19360. Up to 1643 conditions per place. [2022-11-02 20:45:51,601 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 331 selfloop transitions, 224 changer transitions 21/665 dead transitions. [2022-11-02 20:45:51,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 665 transitions, 11920 flow [2022-11-02 20:45:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:45:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 20:45:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 998 transitions. [2022-11-02 20:45:51,604 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6725067385444744 [2022-11-02 20:45:51,604 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 998 transitions. [2022-11-02 20:45:51,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 998 transitions. [2022-11-02 20:45:51,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:51,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 998 transitions. [2022-11-02 20:45:51,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.28571428571429) internal successors, (998), 14 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:51,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:51,608 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:51,608 INFO L175 Difference]: Start difference. First operand has 380 places, 599 transitions, 10172 flow. Second operand 14 states and 998 transitions. [2022-11-02 20:45:51,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 665 transitions, 11920 flow [2022-11-02 20:45:51,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 665 transitions, 11513 flow, removed 17 selfloop flow, removed 6 redundant places. [2022-11-02 20:45:51,947 INFO L231 Difference]: Finished difference. Result has 390 places, 605 transitions, 10424 flow [2022-11-02 20:45:51,948 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9771, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10424, PETRI_PLACES=390, PETRI_TRANSITIONS=605} [2022-11-02 20:45:51,948 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 285 predicate places. [2022-11-02 20:45:51,948 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 605 transitions, 10424 flow [2022-11-02 20:45:51,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:51,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:51,949 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:51,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 20:45:51,949 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:51,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:51,949 INFO L85 PathProgramCache]: Analyzing trace with hash 656178297, now seen corresponding path program 1 times [2022-11-02 20:45:51,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:51,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055804292] [2022-11-02 20:45:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:51,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:45:54,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:54,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055804292] [2022-11-02 20:45:54,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055804292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:54,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:54,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:45:54,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219605216] [2022-11-02 20:45:54,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:54,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:45:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:54,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:45:54,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:45:54,790 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:45:54,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 605 transitions, 10424 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:54,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:54,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:45:54,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:57,554 INFO L130 PetriNetUnfolder]: 1143/3473 cut-off events. [2022-11-02 20:45:57,554 INFO L131 PetriNetUnfolder]: For 51204/51237 co-relation queries the response was YES. [2022-11-02 20:45:57,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20770 conditions, 3473 events. 1143/3473 cut-off events. For 51204/51237 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28013 event pairs, 122 based on Foata normal form. 6/3443 useless extension candidates. Maximal degree in co-relation 20532. Up to 867 conditions per place. [2022-11-02 20:45:57,596 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 665 selfloop transitions, 119 changer transitions 17/904 dead transitions. [2022-11-02 20:45:57,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 904 transitions, 15125 flow [2022-11-02 20:45:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:45:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 20:45:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1185 transitions. [2022-11-02 20:45:57,599 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7452830188679245 [2022-11-02 20:45:57,599 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1185 transitions. [2022-11-02 20:45:57,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1185 transitions. [2022-11-02 20:45:57,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:57,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1185 transitions. [2022-11-02 20:45:57,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.0) internal successors, (1185), 15 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:57,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:57,603 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:57,604 INFO L175 Difference]: Start difference. First operand has 390 places, 605 transitions, 10424 flow. Second operand 15 states and 1185 transitions. [2022-11-02 20:45:57,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 904 transitions, 15125 flow [2022-11-02 20:45:57,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 904 transitions, 14688 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-11-02 20:45:57,956 INFO L231 Difference]: Finished difference. Result has 407 places, 682 transitions, 11637 flow [2022-11-02 20:45:57,957 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10047, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11637, PETRI_PLACES=407, PETRI_TRANSITIONS=682} [2022-11-02 20:45:57,957 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 302 predicate places. [2022-11-02 20:45:57,957 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 682 transitions, 11637 flow [2022-11-02 20:45:57,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:57,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:57,958 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:57,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 20:45:57,958 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:45:57,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:57,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1657790239, now seen corresponding path program 2 times [2022-11-02 20:45:57,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:57,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065938282] [2022-11-02 20:45:57,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:57,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:00,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:00,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065938282] [2022-11-02 20:46:00,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065938282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:00,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:00,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:46:00,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281799421] [2022-11-02 20:46:00,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:00,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:46:00,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:00,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:46:00,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:46:00,189 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:00,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 682 transitions, 11637 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:00,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:00,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:00,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:02,609 INFO L130 PetriNetUnfolder]: 1206/3656 cut-off events. [2022-11-02 20:46:02,609 INFO L131 PetriNetUnfolder]: For 57488/57538 co-relation queries the response was YES. [2022-11-02 20:46:02,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22615 conditions, 3656 events. 1206/3656 cut-off events. For 57488/57538 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 30064 event pairs, 138 based on Foata normal form. 18/3642 useless extension candidates. Maximal degree in co-relation 22369. Up to 1729 conditions per place. [2022-11-02 20:46:02,657 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 585 selfloop transitions, 144 changer transitions 24/856 dead transitions. [2022-11-02 20:46:02,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 856 transitions, 15693 flow [2022-11-02 20:46:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:46:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:46:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 993 transitions. [2022-11-02 20:46:02,659 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7206095791001451 [2022-11-02 20:46:02,660 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 993 transitions. [2022-11-02 20:46:02,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 993 transitions. [2022-11-02 20:46:02,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:02,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 993 transitions. [2022-11-02 20:46:02,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.38461538461539) internal successors, (993), 13 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,664 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,664 INFO L175 Difference]: Start difference. First operand has 407 places, 682 transitions, 11637 flow. Second operand 13 states and 993 transitions. [2022-11-02 20:46:02,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 856 transitions, 15693 flow [2022-11-02 20:46:03,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 856 transitions, 15462 flow, removed 22 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:03,223 INFO L231 Difference]: Finished difference. Result has 423 places, 723 transitions, 13119 flow [2022-11-02 20:46:03,224 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=11463, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13119, PETRI_PLACES=423, PETRI_TRANSITIONS=723} [2022-11-02 20:46:03,225 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 318 predicate places. [2022-11-02 20:46:03,225 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 723 transitions, 13119 flow [2022-11-02 20:46:03,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:03,226 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:03,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 20:46:03,226 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:03,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:03,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1729335313, now seen corresponding path program 3 times [2022-11-02 20:46:03,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:03,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876126227] [2022-11-02 20:46:03,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:03,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:04,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:04,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876126227] [2022-11-02 20:46:04,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876126227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:04,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:04,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:46:04,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597469095] [2022-11-02 20:46:04,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:04,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:46:04,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:04,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:46:04,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:46:04,873 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:04,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 723 transitions, 13119 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:04,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:04,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:07,717 INFO L130 PetriNetUnfolder]: 1367/4058 cut-off events. [2022-11-02 20:46:07,717 INFO L131 PetriNetUnfolder]: For 73830/73903 co-relation queries the response was YES. [2022-11-02 20:46:07,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25863 conditions, 4058 events. 1367/4058 cut-off events. For 73830/73903 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 33912 event pairs, 142 based on Foata normal form. 29/4052 useless extension candidates. Maximal degree in co-relation 25611. Up to 1772 conditions per place. [2022-11-02 20:46:07,777 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 617 selfloop transitions, 213 changer transitions 7/940 dead transitions. [2022-11-02 20:46:07,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 940 transitions, 17989 flow [2022-11-02 20:46:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:46:07,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 20:46:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1131 transitions. [2022-11-02 20:46:07,780 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7113207547169811 [2022-11-02 20:46:07,780 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1131 transitions. [2022-11-02 20:46:07,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1131 transitions. [2022-11-02 20:46:07,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:07,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1131 transitions. [2022-11-02 20:46:07,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.4) internal successors, (1131), 15 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,784 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,784 INFO L175 Difference]: Start difference. First operand has 423 places, 723 transitions, 13119 flow. Second operand 15 states and 1131 transitions. [2022-11-02 20:46:07,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 940 transitions, 17989 flow [2022-11-02 20:46:08,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 940 transitions, 17852 flow, removed 36 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:08,468 INFO L231 Difference]: Finished difference. Result has 444 places, 809 transitions, 15705 flow [2022-11-02 20:46:08,469 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=13019, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15705, PETRI_PLACES=444, PETRI_TRANSITIONS=809} [2022-11-02 20:46:08,475 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 339 predicate places. [2022-11-02 20:46:08,475 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 809 transitions, 15705 flow [2022-11-02 20:46:08,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:08,476 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:08,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 20:46:08,476 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1280972367, now seen corresponding path program 4 times [2022-11-02 20:46:08,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:08,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410952230] [2022-11-02 20:46:08,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:08,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:10,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:10,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410952230] [2022-11-02 20:46:10,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410952230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:10,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:10,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:46:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948205913] [2022-11-02 20:46:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:10,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:46:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:46:10,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:46:10,427 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:10,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 809 transitions, 15705 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:10,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:10,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:10,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:13,276 INFO L130 PetriNetUnfolder]: 1472/4364 cut-off events. [2022-11-02 20:46:13,276 INFO L131 PetriNetUnfolder]: For 97044/97136 co-relation queries the response was YES. [2022-11-02 20:46:13,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29434 conditions, 4364 events. 1472/4364 cut-off events. For 97044/97136 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 37257 event pairs, 177 based on Foata normal form. 29/4355 useless extension candidates. Maximal degree in co-relation 29170. Up to 1731 conditions per place. [2022-11-02 20:46:13,346 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 643 selfloop transitions, 259 changer transitions 6/1011 dead transitions. [2022-11-02 20:46:13,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1011 transitions, 20793 flow [2022-11-02 20:46:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:46:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:46:13,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 999 transitions. [2022-11-02 20:46:13,349 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7249637155297532 [2022-11-02 20:46:13,349 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 999 transitions. [2022-11-02 20:46:13,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 999 transitions. [2022-11-02 20:46:13,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:13,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 999 transitions. [2022-11-02 20:46:13,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.84615384615384) internal successors, (999), 13 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) [2022-11-02 20:46:13,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:13,352 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:13,352 INFO L175 Difference]: Start difference. First operand has 444 places, 809 transitions, 15705 flow. Second operand 13 states and 999 transitions. [2022-11-02 20:46:13,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1011 transitions, 20793 flow [2022-11-02 20:46:14,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 1011 transitions, 20645 flow, removed 53 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:14,059 INFO L231 Difference]: Finished difference. Result has 465 places, 880 transitions, 18456 flow [2022-11-02 20:46:14,060 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15566, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=809, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18456, PETRI_PLACES=465, PETRI_TRANSITIONS=880} [2022-11-02 20:46:14,060 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 360 predicate places. [2022-11-02 20:46:14,061 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 880 transitions, 18456 flow [2022-11-02 20:46:14,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:14,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:14,061 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:14,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 20:46:14,062 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash -560451071, now seen corresponding path program 5 times [2022-11-02 20:46:14,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:14,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741561697] [2022-11-02 20:46:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:16,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:16,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741561697] [2022-11-02 20:46:16,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741561697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:16,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:16,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:46:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574103888] [2022-11-02 20:46:16,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:16,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:46:16,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:16,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:46:16,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:46:16,297 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:16,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 880 transitions, 18456 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:16,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:16,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:16,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:20,243 INFO L130 PetriNetUnfolder]: 1643/4812 cut-off events. [2022-11-02 20:46:20,243 INFO L131 PetriNetUnfolder]: For 134034/134164 co-relation queries the response was YES. [2022-11-02 20:46:20,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34449 conditions, 4812 events. 1643/4812 cut-off events. For 134034/134164 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 42035 event pairs, 193 based on Foata normal form. 63/4836 useless extension candidates. Maximal degree in co-relation 34174. Up to 2076 conditions per place. [2022-11-02 20:46:20,334 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 711 selfloop transitions, 298 changer transitions 8/1120 dead transitions. [2022-11-02 20:46:20,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1120 transitions, 25114 flow [2022-11-02 20:46:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:46:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 20:46:20,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1151 transitions. [2022-11-02 20:46:20,336 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7238993710691823 [2022-11-02 20:46:20,337 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1151 transitions. [2022-11-02 20:46:20,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1151 transitions. [2022-11-02 20:46:20,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:20,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1151 transitions. [2022-11-02 20:46:20,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.73333333333333) internal successors, (1151), 15 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:20,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:20,340 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:20,340 INFO L175 Difference]: Start difference. First operand has 465 places, 880 transitions, 18456 flow. Second operand 15 states and 1151 transitions. [2022-11-02 20:46:20,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1120 transitions, 25114 flow [2022-11-02 20:46:21,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 1120 transitions, 24958 flow, removed 78 selfloop flow, removed 0 redundant places. [2022-11-02 20:46:21,472 INFO L231 Difference]: Finished difference. Result has 487 places, 962 transitions, 21908 flow [2022-11-02 20:46:21,473 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18354, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=880, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=21908, PETRI_PLACES=487, PETRI_TRANSITIONS=962} [2022-11-02 20:46:21,474 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 382 predicate places. [2022-11-02 20:46:21,474 INFO L495 AbstractCegarLoop]: Abstraction has has 487 places, 962 transitions, 21908 flow [2022-11-02 20:46:21,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:21,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:21,475 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:21,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-02 20:46:21,475 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:21,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:21,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1432364191, now seen corresponding path program 6 times [2022-11-02 20:46:21,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:21,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812702584] [2022-11-02 20:46:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:21,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:23,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:23,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812702584] [2022-11-02 20:46:23,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812702584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:23,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:23,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:23,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214864220] [2022-11-02 20:46:23,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:23,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:23,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:23,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:23,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:23,194 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:23,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 962 transitions, 21908 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:23,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:23,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:23,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:27,263 INFO L130 PetriNetUnfolder]: 1771/5176 cut-off events. [2022-11-02 20:46:27,264 INFO L131 PetriNetUnfolder]: For 160032/160190 co-relation queries the response was YES. [2022-11-02 20:46:27,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38253 conditions, 5176 events. 1771/5176 cut-off events. For 160032/160190 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 45761 event pairs, 217 based on Foata normal form. 60/5195 useless extension candidates. Maximal degree in co-relation 37969. Up to 1834 conditions per place. [2022-11-02 20:46:27,406 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 737 selfloop transitions, 369 changer transitions 4/1213 dead transitions. [2022-11-02 20:46:27,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1213 transitions, 28336 flow [2022-11-02 20:46:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:46:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 20:46:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1105 transitions. [2022-11-02 20:46:27,409 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7446091644204852 [2022-11-02 20:46:27,409 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1105 transitions. [2022-11-02 20:46:27,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1105 transitions. [2022-11-02 20:46:27,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:27,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1105 transitions. [2022-11-02 20:46:27,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.92857142857143) internal successors, (1105), 14 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:27,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:27,412 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:27,412 INFO L175 Difference]: Start difference. First operand has 487 places, 962 transitions, 21908 flow. Second operand 14 states and 1105 transitions. [2022-11-02 20:46:27,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 1213 transitions, 28336 flow [2022-11-02 20:46:29,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 1213 transitions, 28133 flow, removed 58 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:29,283 INFO L231 Difference]: Finished difference. Result has 503 places, 1035 transitions, 24966 flow [2022-11-02 20:46:29,284 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=21754, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=301, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24966, PETRI_PLACES=503, PETRI_TRANSITIONS=1035} [2022-11-02 20:46:29,284 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 398 predicate places. [2022-11-02 20:46:29,285 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 1035 transitions, 24966 flow [2022-11-02 20:46:29,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:29,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:29,285 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:29,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-02 20:46:29,285 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:29,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:29,286 INFO L85 PathProgramCache]: Analyzing trace with hash 196866331, now seen corresponding path program 7 times [2022-11-02 20:46:29,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826736384] [2022-11-02 20:46:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:29,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:31,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:31,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826736384] [2022-11-02 20:46:31,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826736384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:31,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:31,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:46:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300005753] [2022-11-02 20:46:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:31,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:46:31,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:46:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:46:31,338 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:31,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 1035 transitions, 24966 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:31,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:31,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:31,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:36,246 INFO L130 PetriNetUnfolder]: 1792/5212 cut-off events. [2022-11-02 20:46:36,246 INFO L131 PetriNetUnfolder]: For 174952/175106 co-relation queries the response was YES. [2022-11-02 20:46:36,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39983 conditions, 5212 events. 1792/5212 cut-off events. For 174952/175106 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 46256 event pairs, 183 based on Foata normal form. 69/5243 useless extension candidates. Maximal degree in co-relation 39692. Up to 2235 conditions per place. [2022-11-02 20:46:36,337 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 737 selfloop transitions, 353 changer transitions 7/1200 dead transitions. [2022-11-02 20:46:36,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 1200 transitions, 29515 flow [2022-11-02 20:46:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:46:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 20:46:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1140 transitions. [2022-11-02 20:46:36,339 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7169811320754716 [2022-11-02 20:46:36,340 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1140 transitions. [2022-11-02 20:46:36,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1140 transitions. [2022-11-02 20:46:36,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:36,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1140 transitions. [2022-11-02 20:46:36,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.0) internal successors, (1140), 15 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,344 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,344 INFO L175 Difference]: Start difference. First operand has 503 places, 1035 transitions, 24966 flow. Second operand 15 states and 1140 transitions. [2022-11-02 20:46:36,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 1200 transitions, 29515 flow [2022-11-02 20:46:38,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 1200 transitions, 28808 flow, removed 67 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:38,054 INFO L231 Difference]: Finished difference. Result has 518 places, 1059 transitions, 25840 flow [2022-11-02 20:46:38,055 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=24287, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=331, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25840, PETRI_PLACES=518, PETRI_TRANSITIONS=1059} [2022-11-02 20:46:38,056 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 413 predicate places. [2022-11-02 20:46:38,056 INFO L495 AbstractCegarLoop]: Abstraction has has 518 places, 1059 transitions, 25840 flow [2022-11-02 20:46:38,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:38,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:38,056 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:38,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-02 20:46:38,057 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash -405296499, now seen corresponding path program 8 times [2022-11-02 20:46:38,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:38,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432591035] [2022-11-02 20:46:38,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:38,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:39,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:39,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432591035] [2022-11-02 20:46:39,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432591035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:39,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:39,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:39,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722158514] [2022-11-02 20:46:39,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:39,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:39,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:39,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:39,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:39,788 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:39,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 1059 transitions, 25840 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:39,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:39,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:39,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:44,813 INFO L130 PetriNetUnfolder]: 1878/5471 cut-off events. [2022-11-02 20:46:44,813 INFO L131 PetriNetUnfolder]: For 191497/191656 co-relation queries the response was YES. [2022-11-02 20:46:44,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42741 conditions, 5471 events. 1878/5471 cut-off events. For 191497/191656 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 49318 event pairs, 234 based on Foata normal form. 59/5487 useless extension candidates. Maximal degree in co-relation 42446. Up to 2136 conditions per place. [2022-11-02 20:46:44,926 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 766 selfloop transitions, 407 changer transitions 5/1281 dead transitions. [2022-11-02 20:46:44,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1281 transitions, 32288 flow [2022-11-02 20:46:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:46:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 20:46:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1168 transitions. [2022-11-02 20:46:44,933 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7345911949685534 [2022-11-02 20:46:44,933 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1168 transitions. [2022-11-02 20:46:44,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1168 transitions. [2022-11-02 20:46:44,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:44,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1168 transitions. [2022-11-02 20:46:44,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.86666666666666) internal successors, (1168), 15 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:44,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:44,939 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:44,939 INFO L175 Difference]: Start difference. First operand has 518 places, 1059 transitions, 25840 flow. Second operand 15 states and 1168 transitions. [2022-11-02 20:46:44,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1281 transitions, 32288 flow [2022-11-02 20:46:46,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 1281 transitions, 31886 flow, removed 30 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:46,875 INFO L231 Difference]: Finished difference. Result has 534 places, 1124 transitions, 28758 flow [2022-11-02 20:46:46,876 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=25481, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28758, PETRI_PLACES=534, PETRI_TRANSITIONS=1124} [2022-11-02 20:46:46,877 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 429 predicate places. [2022-11-02 20:46:46,877 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 1124 transitions, 28758 flow [2022-11-02 20:46:46,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:46,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:46,878 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:46,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-02 20:46:46,878 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:46,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:46,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1539165743, now seen corresponding path program 9 times [2022-11-02 20:46:46,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:46,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941805186] [2022-11-02 20:46:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:46,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:49,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:49,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941805186] [2022-11-02 20:46:49,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941805186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:49,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:49,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:46:49,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501190951] [2022-11-02 20:46:49,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:49,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:46:49,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:49,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:46:49,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:46:49,280 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:49,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 1124 transitions, 28758 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:49,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:49,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:49,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:55,091 INFO L130 PetriNetUnfolder]: 1924/5588 cut-off events. [2022-11-02 20:46:55,091 INFO L131 PetriNetUnfolder]: For 207641/207803 co-relation queries the response was YES. [2022-11-02 20:46:55,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45113 conditions, 5588 events. 1924/5588 cut-off events. For 207641/207803 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 50701 event pairs, 234 based on Foata normal form. 51/5595 useless extension candidates. Maximal degree in co-relation 44812. Up to 2161 conditions per place. [2022-11-02 20:46:55,217 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 759 selfloop transitions, 449 changer transitions 6/1317 dead transitions. [2022-11-02 20:46:55,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 1317 transitions, 34528 flow [2022-11-02 20:46:55,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:46:55,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:46:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1366 transitions. [2022-11-02 20:46:55,221 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7159329140461216 [2022-11-02 20:46:55,221 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1366 transitions. [2022-11-02 20:46:55,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1366 transitions. [2022-11-02 20:46:55,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:55,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1366 transitions. [2022-11-02 20:46:55,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 75.88888888888889) internal successors, (1366), 18 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:55,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:55,229 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:55,229 INFO L175 Difference]: Start difference. First operand has 534 places, 1124 transitions, 28758 flow. Second operand 18 states and 1366 transitions. [2022-11-02 20:46:55,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 1317 transitions, 34528 flow [2022-11-02 20:46:57,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1317 transitions, 33698 flow, removed 71 selfloop flow, removed 5 redundant places. [2022-11-02 20:46:57,212 INFO L231 Difference]: Finished difference. Result has 554 places, 1166 transitions, 30670 flow [2022-11-02 20:46:57,213 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=27987, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=408, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=30670, PETRI_PLACES=554, PETRI_TRANSITIONS=1166} [2022-11-02 20:46:57,213 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 449 predicate places. [2022-11-02 20:46:57,213 INFO L495 AbstractCegarLoop]: Abstraction has has 554 places, 1166 transitions, 30670 flow [2022-11-02 20:46:57,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:57,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:57,214 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:57,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-02 20:46:57,214 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:57,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:57,215 INFO L85 PathProgramCache]: Analyzing trace with hash -241018043, now seen corresponding path program 10 times [2022-11-02 20:46:57,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:57,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689095106] [2022-11-02 20:46:57,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:57,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:59,778 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:46:59,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:59,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689095106] [2022-11-02 20:46:59,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689095106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:59,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:59,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:46:59,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375204898] [2022-11-02 20:46:59,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:59,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:46:59,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:59,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:46:59,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:46:59,783 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:46:59,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 1166 transitions, 30670 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:59,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:59,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:46:59,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:05,766 INFO L130 PetriNetUnfolder]: 1980/5764 cut-off events. [2022-11-02 20:47:05,766 INFO L131 PetriNetUnfolder]: For 222931/223092 co-relation queries the response was YES. [2022-11-02 20:47:05,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47324 conditions, 5764 events. 1980/5764 cut-off events. For 222931/223092 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 52602 event pairs, 209 based on Foata normal form. 43/5764 useless extension candidates. Maximal degree in co-relation 47016. Up to 1926 conditions per place. [2022-11-02 20:47:05,892 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 762 selfloop transitions, 510 changer transitions 5/1380 dead transitions. [2022-11-02 20:47:05,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 1380 transitions, 36898 flow [2022-11-02 20:47:05,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:47:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:47:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1497 transitions. [2022-11-02 20:47:05,895 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7061320754716981 [2022-11-02 20:47:05,895 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1497 transitions. [2022-11-02 20:47:05,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1497 transitions. [2022-11-02 20:47:05,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:05,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1497 transitions. [2022-11-02 20:47:05,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 74.85) internal successors, (1497), 20 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:05,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:05,900 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:05,900 INFO L175 Difference]: Start difference. First operand has 554 places, 1166 transitions, 30670 flow. Second operand 20 states and 1497 transitions. [2022-11-02 20:47:05,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 1380 transitions, 36898 flow [2022-11-02 20:47:08,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 1380 transitions, 36252 flow, removed 31 selfloop flow, removed 6 redundant places. [2022-11-02 20:47:08,055 INFO L231 Difference]: Finished difference. Result has 579 places, 1219 transitions, 33241 flow [2022-11-02 20:47:08,056 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=30082, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=459, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=33241, PETRI_PLACES=579, PETRI_TRANSITIONS=1219} [2022-11-02 20:47:08,056 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 474 predicate places. [2022-11-02 20:47:08,056 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 1219 transitions, 33241 flow [2022-11-02 20:47:08,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:08,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:08,057 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:08,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-02 20:47:08,057 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:47:08,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash 893917911, now seen corresponding path program 11 times [2022-11-02 20:47:08,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:08,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952258926] [2022-11-02 20:47:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:08,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:47:10,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:10,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952258926] [2022-11-02 20:47:10,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952258926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:10,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:10,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:47:10,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571233486] [2022-11-02 20:47:10,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:10,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:47:10,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:10,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:47:10,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:47:10,780 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:47:10,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 1219 transitions, 33241 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:10,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:10,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:47:10,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:16,711 INFO L130 PetriNetUnfolder]: 2064/5993 cut-off events. [2022-11-02 20:47:16,711 INFO L131 PetriNetUnfolder]: For 252990/253149 co-relation queries the response was YES. [2022-11-02 20:47:16,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50862 conditions, 5993 events. 2064/5993 cut-off events. For 252990/253149 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 55312 event pairs, 225 based on Foata normal form. 41/5987 useless extension candidates. Maximal degree in co-relation 50542. Up to 1965 conditions per place. [2022-11-02 20:47:16,834 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 775 selfloop transitions, 555 changer transitions 4/1437 dead transitions. [2022-11-02 20:47:16,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 1437 transitions, 40161 flow [2022-11-02 20:47:16,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:47:16,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:47:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1369 transitions. [2022-11-02 20:47:16,837 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7175052410901468 [2022-11-02 20:47:16,837 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1369 transitions. [2022-11-02 20:47:16,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1369 transitions. [2022-11-02 20:47:16,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:16,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1369 transitions. [2022-11-02 20:47:16,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 76.05555555555556) internal successors, (1369), 18 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:16,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:16,840 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:16,840 INFO L175 Difference]: Start difference. First operand has 579 places, 1219 transitions, 33241 flow. Second operand 18 states and 1369 transitions. [2022-11-02 20:47:16,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 596 places, 1437 transitions, 40161 flow [2022-11-02 20:47:19,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 1437 transitions, 39391 flow, removed 113 selfloop flow, removed 6 redundant places. [2022-11-02 20:47:19,502 INFO L231 Difference]: Finished difference. Result has 598 places, 1281 transitions, 36405 flow [2022-11-02 20:47:19,503 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=32578, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=496, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=36405, PETRI_PLACES=598, PETRI_TRANSITIONS=1281} [2022-11-02 20:47:19,504 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 493 predicate places. [2022-11-02 20:47:19,504 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 1281 transitions, 36405 flow [2022-11-02 20:47:19,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:19,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:19,504 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:19,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-02 20:47:19,504 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:47:19,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:19,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1708014443, now seen corresponding path program 12 times [2022-11-02 20:47:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:19,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525814107] [2022-11-02 20:47:19,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:47:21,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:21,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525814107] [2022-11-02 20:47:21,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525814107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:21,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:21,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:47:21,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590395768] [2022-11-02 20:47:21,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:21,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:47:21,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:21,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:47:21,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:47:21,898 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:47:21,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1281 transitions, 36405 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:21,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:21,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:47:21,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:28,149 INFO L130 PetriNetUnfolder]: 2087/6062 cut-off events. [2022-11-02 20:47:28,149 INFO L131 PetriNetUnfolder]: For 275396/275591 co-relation queries the response was YES. [2022-11-02 20:47:28,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52633 conditions, 6062 events. 2087/6062 cut-off events. For 275396/275591 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 56266 event pairs, 244 based on Foata normal form. 75/6090 useless extension candidates. Maximal degree in co-relation 52305. Up to 1975 conditions per place. [2022-11-02 20:47:28,298 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 795 selfloop transitions, 566 changer transitions 4/1468 dead transitions. [2022-11-02 20:47:28,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 1468 transitions, 42091 flow [2022-11-02 20:47:28,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:47:28,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:47:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1511 transitions. [2022-11-02 20:47:28,302 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7127358490566038 [2022-11-02 20:47:28,302 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1511 transitions. [2022-11-02 20:47:28,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1511 transitions. [2022-11-02 20:47:28,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:28,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1511 transitions. [2022-11-02 20:47:28,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 75.55) internal successors, (1511), 20 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:28,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:28,306 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:28,306 INFO L175 Difference]: Start difference. First operand has 598 places, 1281 transitions, 36405 flow. Second operand 20 states and 1511 transitions. [2022-11-02 20:47:28,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 1468 transitions, 42091 flow [2022-11-02 20:47:31,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 1468 transitions, 41357 flow, removed 80 selfloop flow, removed 8 redundant places. [2022-11-02 20:47:31,123 INFO L231 Difference]: Finished difference. Result has 615 places, 1306 transitions, 37851 flow [2022-11-02 20:47:31,123 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=35748, PETRI_DIFFERENCE_MINUEND_PLACES=590, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=542, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37851, PETRI_PLACES=615, PETRI_TRANSITIONS=1306} [2022-11-02 20:47:31,124 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 510 predicate places. [2022-11-02 20:47:31,124 INFO L495 AbstractCegarLoop]: Abstraction has has 615 places, 1306 transitions, 37851 flow [2022-11-02 20:47:31,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:31,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:31,125 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:31,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-02 20:47:31,125 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:47:31,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash 278366623, now seen corresponding path program 13 times [2022-11-02 20:47:31,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:31,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288827532] [2022-11-02 20:47:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:47:31,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:31,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288827532] [2022-11-02 20:47:31,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288827532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:31,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:31,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:47:31,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365418790] [2022-11-02 20:47:31,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:31,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:47:31,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:31,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:47:31,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:47:31,999 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:47:32,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 1306 transitions, 37851 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:32,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:32,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:47:32,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:37,292 INFO L130 PetriNetUnfolder]: 2127/6193 cut-off events. [2022-11-02 20:47:37,292 INFO L131 PetriNetUnfolder]: For 292289/292491 co-relation queries the response was YES. [2022-11-02 20:47:37,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54069 conditions, 6193 events. 2127/6193 cut-off events. For 292289/292491 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 57304 event pairs, 328 based on Foata normal form. 79/6218 useless extension candidates. Maximal degree in co-relation 53735. Up to 2407 conditions per place. [2022-11-02 20:47:37,726 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 943 selfloop transitions, 419 changer transitions 17/1482 dead transitions. [2022-11-02 20:47:37,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 1482 transitions, 42875 flow [2022-11-02 20:47:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:47:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:47:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 953 transitions. [2022-11-02 20:47:37,728 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7492138364779874 [2022-11-02 20:47:37,728 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 953 transitions. [2022-11-02 20:47:37,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 953 transitions. [2022-11-02 20:47:37,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:37,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 953 transitions. [2022-11-02 20:47:37,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.41666666666667) internal successors, (953), 12 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:37,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:37,735 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:37,735 INFO L175 Difference]: Start difference. First operand has 615 places, 1306 transitions, 37851 flow. Second operand 12 states and 953 transitions. [2022-11-02 20:47:37,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 1482 transitions, 42875 flow [2022-11-02 20:47:40,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 1482 transitions, 41882 flow, removed 45 selfloop flow, removed 9 redundant places. [2022-11-02 20:47:40,924 INFO L231 Difference]: Finished difference. Result has 622 places, 1341 transitions, 39076 flow [2022-11-02 20:47:40,926 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=36895, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=389, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=893, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=39076, PETRI_PLACES=622, PETRI_TRANSITIONS=1341} [2022-11-02 20:47:40,926 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 517 predicate places. [2022-11-02 20:47:40,926 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 1341 transitions, 39076 flow [2022-11-02 20:47:40,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:40,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:40,927 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:40,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-02 20:47:40,928 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:47:40,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:40,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1856733461, now seen corresponding path program 14 times [2022-11-02 20:47:40,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:40,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159363928] [2022-11-02 20:47:40,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:40,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:47:43,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:43,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159363928] [2022-11-02 20:47:43,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159363928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:43,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:43,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:47:43,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031841415] [2022-11-02 20:47:43,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:43,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:47:43,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:43,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:47:43,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:47:43,233 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:47:43,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 1341 transitions, 39076 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:43,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:43,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:47:43,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:50,276 INFO L130 PetriNetUnfolder]: 2250/6481 cut-off events. [2022-11-02 20:47:50,276 INFO L131 PetriNetUnfolder]: For 330183/330388 co-relation queries the response was YES. [2022-11-02 20:47:50,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57907 conditions, 6481 events. 2250/6481 cut-off events. For 330183/330388 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 60766 event pairs, 295 based on Foata normal form. 80/6509 useless extension candidates. Maximal degree in co-relation 57566. Up to 1719 conditions per place. [2022-11-02 20:47:50,483 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 916 selfloop transitions, 570 changer transitions 7/1596 dead transitions. [2022-11-02 20:47:50,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1596 transitions, 46594 flow [2022-11-02 20:47:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:47:50,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 20:47:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1128 transitions. [2022-11-02 20:47:50,486 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7601078167115903 [2022-11-02 20:47:50,486 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1128 transitions. [2022-11-02 20:47:50,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1128 transitions. [2022-11-02 20:47:50,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:50,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1128 transitions. [2022-11-02 20:47:50,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 80.57142857142857) internal successors, (1128), 14 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:50,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:50,490 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:50,490 INFO L175 Difference]: Start difference. First operand has 622 places, 1341 transitions, 39076 flow. Second operand 14 states and 1128 transitions. [2022-11-02 20:47:50,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1596 transitions, 46594 flow [2022-11-02 20:47:53,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 1596 transitions, 46442 flow, removed 22 selfloop flow, removed 4 redundant places. [2022-11-02 20:47:53,827 INFO L231 Difference]: Finished difference. Result has 638 places, 1399 transitions, 42655 flow [2022-11-02 20:47:53,828 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=38937, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=515, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=808, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=42655, PETRI_PLACES=638, PETRI_TRANSITIONS=1399} [2022-11-02 20:47:53,829 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 533 predicate places. [2022-11-02 20:47:53,829 INFO L495 AbstractCegarLoop]: Abstraction has has 638 places, 1399 transitions, 42655 flow [2022-11-02 20:47:53,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:53,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:53,830 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:53,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-02 20:47:53,830 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:47:53,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:53,831 INFO L85 PathProgramCache]: Analyzing trace with hash -502504935, now seen corresponding path program 1 times [2022-11-02 20:47:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:53,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002952302] [2022-11-02 20:47:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:47:54,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:54,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002952302] [2022-11-02 20:47:54,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002952302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:54,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:54,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:47:54,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663529658] [2022-11-02 20:47:54,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:54,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:47:54,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:47:54,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:47:54,506 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-02 20:47:54,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 1399 transitions, 42655 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:54,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:54,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-02 20:47:54,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:01,492 INFO L130 PetriNetUnfolder]: 2480/6840 cut-off events. [2022-11-02 20:48:01,492 INFO L131 PetriNetUnfolder]: For 376378/376543 co-relation queries the response was YES. [2022-11-02 20:48:01,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63521 conditions, 6840 events. 2480/6840 cut-off events. For 376378/376543 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 63106 event pairs, 627 based on Foata normal form. 58/6816 useless extension candidates. Maximal degree in co-relation 63173. Up to 2868 conditions per place. [2022-11-02 20:48:01,671 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 1111 selfloop transitions, 342 changer transitions 44/1597 dead transitions. [2022-11-02 20:48:01,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 1597 transitions, 49643 flow [2022-11-02 20:48:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:48:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 20:48:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1193 transitions. [2022-11-02 20:48:01,674 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7034198113207547 [2022-11-02 20:48:01,674 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1193 transitions. [2022-11-02 20:48:01,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1193 transitions. [2022-11-02 20:48:01,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:01,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1193 transitions. [2022-11-02 20:48:01,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 74.5625) internal successors, (1193), 16 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:01,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:01,681 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:01,681 INFO L175 Difference]: Start difference. First operand has 638 places, 1399 transitions, 42655 flow. Second operand 16 states and 1193 transitions. [2022-11-02 20:48:01,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 1597 transitions, 49643 flow [2022-11-02 20:48:05,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 1597 transitions, 49443 flow, removed 48 selfloop flow, removed 3 redundant places. [2022-11-02 20:48:05,985 INFO L231 Difference]: Finished difference. Result has 662 places, 1446 transitions, 44520 flow [2022-11-02 20:48:05,986 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=42469, PETRI_DIFFERENCE_MINUEND_PLACES=635, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1072, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=44520, PETRI_PLACES=662, PETRI_TRANSITIONS=1446} [2022-11-02 20:48:05,987 INFO L287 CegarLoopForPetriNet]: 105 programPoint places, 557 predicate places. [2022-11-02 20:48:05,987 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 1446 transitions, 44520 flow [2022-11-02 20:48:05,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:05,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:05,988 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:05,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-02 20:48:05,989 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:48:05,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1244738629, now seen corresponding path program 15 times [2022-11-02 20:48:05,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:05,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444155216] [2022-11-02 20:48:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:05,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:08,018 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:48:08,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:08,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444155216] [2022-11-02 20:48:08,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444155216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:08,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:08,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:48:08,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846146492] [2022-11-02 20:48:08,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:08,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:48:08,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:48:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:48:08,021 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-02 20:48:08,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 1446 transitions, 44520 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:08,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:08,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-02 20:48:08,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand