./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/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_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/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_9c4a4f06-673d-423b-badf-07cdc6e41537/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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- 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 20:23:17,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:23:17,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:23:17,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:23:17,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:23:17,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:23:17,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:23:17,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:23:17,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:23:17,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:23:17,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:23:17,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:23:17,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:23:17,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:23:17,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:23:17,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:23:17,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:23:17,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:23:17,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:23:17,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:23:17,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:23:17,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:23:17,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:23:17,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:23:17,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:23:17,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:23:17,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:23:17,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:23:17,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:23:17,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:23:17,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:23:17,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:23:17,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:23:17,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:23:17,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:23:17,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:23:17,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:23:17,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:23:17,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:23:17,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:23:17,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:23:17,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:23:17,850 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:23:17,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:23:17,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:23:17,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:23:17,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:23:17,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:23:17,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:23:17,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:23:17,856 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:23:17,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:23:17,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:23:17,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:23:17,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:23:17,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:23:17,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:23:17,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:23:17,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:23:17,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:23:17,860 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:23:17,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:23:17,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:23:17,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:23:17,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:23:17,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:23:17,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:23:17,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:23:17,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:17,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:23:17,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:23:17,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:23:17,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:23:17,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:23:17,866 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:23:17,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:23:17,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:23:17,867 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_9c4a4f06-673d-423b-badf-07cdc6e41537/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2022-11-02 20:23:18,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:23:18,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:23:18,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:23:18,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:23:18,281 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:23:18,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-02 20:23:18,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/data/4de6c3b54/16353b20c1ab48a89f5ad77799c2420d/FLAGa095c4425 [2022-11-02 20:23:19,150 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:23:19,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-02 20:23:19,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/data/4de6c3b54/16353b20c1ab48a89f5ad77799c2420d/FLAGa095c4425 [2022-11-02 20:23:19,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/data/4de6c3b54/16353b20c1ab48a89f5ad77799c2420d [2022-11-02 20:23:19,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:23:19,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:23:19,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:19,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:23:19,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:23:19,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:19" (1/1) ... [2022-11-02 20:23:19,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2649a19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:19, skipping insertion in model container [2022-11-02 20:23:19,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:19" (1/1) ... [2022-11-02 20:23:19,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:23:19,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:23:20,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:20,488 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:23:20,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:20,689 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:23:20,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20 WrapperNode [2022-11-02 20:23:20,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:20,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:20,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:23:20,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:23:20,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,797 INFO L138 Inliner]: procedures = 368, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 184 [2022-11-02 20:23:20,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:20,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:23:20,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:23:20,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:23:20,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,868 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:23:20,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:23:20,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:23:20,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:23:20,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (1/1) ... [2022-11-02 20:23:20,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:20,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:20,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:23:20,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4a4f06-673d-423b-badf-07cdc6e41537/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:23:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:23:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:23:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:23:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:23:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:23:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:23:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:23:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:23:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:23:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:23:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:23:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:23:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:23:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:23:21,016 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 20:23:21,267 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:23:21,270 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:23:22,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:23:22,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:23:22,046 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:23:22,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:22 BoogieIcfgContainer [2022-11-02 20:23:22,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:23:22,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:23:22,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:23:22,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:23:22,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:23:19" (1/3) ... [2022-11-02 20:23:22,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b8fb18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:22, skipping insertion in model container [2022-11-02 20:23:22,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:20" (2/3) ... [2022-11-02 20:23:22,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b8fb18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:22, skipping insertion in model container [2022-11-02 20:23:22,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:22" (3/3) ... [2022-11-02 20:23:22,060 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2022-11-02 20:23:22,083 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:23:22,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:23:22,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-02 20:23:22,102 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:23:22,258 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:23:22,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 286 transitions, 577 flow [2022-11-02 20:23:22,571 INFO L130 PetriNetUnfolder]: 0/285 cut-off events. [2022-11-02 20:23:22,571 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:22,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 285 events. 0/285 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-02 20:23:22,576 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 286 transitions, 577 flow [2022-11-02 20:23:22,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 285 transitions, 573 flow [2022-11-02 20:23:22,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:23:22,630 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;@275a97f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:23:22,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-02 20:23:22,644 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-11-02 20:23:22,645 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:22,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:22,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:22,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:22,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:22,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2019786680, now seen corresponding path program 1 times [2022-11-02 20:23:22,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:22,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838432830] [2022-11-02 20:23:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:23,824 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 20:23:23,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:23,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838432830] [2022-11-02 20:23:23,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838432830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:23,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:23,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:23,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804187035] [2022-11-02 20:23:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:23,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:23,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:23,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:23,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:23,903 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 286 [2022-11-02 20:23:23,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 285 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:23,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:23,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 286 [2022-11-02 20:23:23,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:25,538 INFO L130 PetriNetUnfolder]: 864/2847 cut-off events. [2022-11-02 20:23:25,539 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:23:25,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 2847 events. 864/2847 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17957 event pairs, 864 based on Foata normal form. 0/2485 useless extension candidates. Maximal degree in co-relation 4478. Up to 1838 conditions per place. [2022-11-02 20:23:25,571 INFO L137 encePairwiseOnDemand]: 268/286 looper letters, 109 selfloop transitions, 15 changer transitions 0/282 dead transitions. [2022-11-02 20:23:25,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 282 transitions, 815 flow [2022-11-02 20:23:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1081 transitions. [2022-11-02 20:23:25,608 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.62995337995338 [2022-11-02 20:23:25,609 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1081 transitions. [2022-11-02 20:23:25,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1081 transitions. [2022-11-02 20:23:25,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:25,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1081 transitions. [2022-11-02 20:23:25,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.16666666666666) internal successors, (1081), 6 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:25,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:25,651 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:25,655 INFO L175 Difference]: Start difference. First operand has 289 places, 285 transitions, 573 flow. Second operand 6 states and 1081 transitions. [2022-11-02 20:23:25,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 282 transitions, 815 flow [2022-11-02 20:23:25,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 282 transitions, 814 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:25,677 INFO L231 Difference]: Finished difference. Result has 290 places, 282 transitions, 596 flow [2022-11-02 20:23:25,680 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=596, PETRI_PLACES=290, PETRI_TRANSITIONS=282} [2022-11-02 20:23:25,688 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 1 predicate places. [2022-11-02 20:23:25,689 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 282 transitions, 596 flow [2022-11-02 20:23:25,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:25,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:25,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:25,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:23:25,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:25,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:25,695 INFO L85 PathProgramCache]: Analyzing trace with hash 433367205, now seen corresponding path program 1 times [2022-11-02 20:23:25,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:25,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490983405] [2022-11-02 20:23:25,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:25,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:26,303 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 20:23:26,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:26,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490983405] [2022-11-02 20:23:26,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490983405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:26,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:26,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:26,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918601041] [2022-11-02 20:23:26,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:26,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:26,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:26,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:26,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:26,310 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 286 [2022-11-02 20:23:26,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 282 transitions, 596 flow. Second operand has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:26,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:26,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 286 [2022-11-02 20:23:26,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:27,487 INFO L130 PetriNetUnfolder]: 864/2844 cut-off events. [2022-11-02 20:23:27,488 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:23:27,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4713 conditions, 2844 events. 864/2844 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17925 event pairs, 864 based on Foata normal form. 0/2485 useless extension candidates. Maximal degree in co-relation 4520. Up to 1835 conditions per place. [2022-11-02 20:23:27,510 INFO L137 encePairwiseOnDemand]: 268/286 looper letters, 106 selfloop transitions, 15 changer transitions 0/279 dead transitions. [2022-11-02 20:23:27,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 279 transitions, 832 flow [2022-11-02 20:23:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1078 transitions. [2022-11-02 20:23:27,516 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2022-11-02 20:23:27,517 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1078 transitions. [2022-11-02 20:23:27,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1078 transitions. [2022-11-02 20:23:27,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:27,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1078 transitions. [2022-11-02 20:23:27,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,530 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,530 INFO L175 Difference]: Start difference. First operand has 290 places, 282 transitions, 596 flow. Second operand 6 states and 1078 transitions. [2022-11-02 20:23:27,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 279 transitions, 832 flow [2022-11-02 20:23:27,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 279 transitions, 802 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:27,545 INFO L231 Difference]: Finished difference. Result has 287 places, 279 transitions, 590 flow [2022-11-02 20:23:27,546 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=590, PETRI_PLACES=287, PETRI_TRANSITIONS=279} [2022-11-02 20:23:27,547 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -2 predicate places. [2022-11-02 20:23:27,547 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 279 transitions, 590 flow [2022-11-02 20:23:27,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:27,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:27,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:23:27,550 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1886336480, now seen corresponding path program 1 times [2022-11-02 20:23:27,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:27,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099821347] [2022-11-02 20:23:27,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:27,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:27,638 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 20:23:27,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:27,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099821347] [2022-11-02 20:23:27,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099821347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:27,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:27,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:27,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326106875] [2022-11-02 20:23:27,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:27,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:27,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:27,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:27,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:27,646 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 286 [2022-11-02 20:23:27,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 279 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:27,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 286 [2022-11-02 20:23:27,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:27,778 INFO L130 PetriNetUnfolder]: 9/506 cut-off events. [2022-11-02 20:23:27,778 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:27,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 506 events. 9/506 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1517 event pairs, 9 based on Foata normal form. 0/457 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-02 20:23:27,782 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 16 selfloop transitions, 2 changer transitions 0/278 dead transitions. [2022-11-02 20:23:27,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 278 transitions, 624 flow [2022-11-02 20:23:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:27,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2022-11-02 20:23:27,833 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9557109557109557 [2022-11-02 20:23:27,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2022-11-02 20:23:27,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2022-11-02 20:23:27,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:27,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2022-11-02 20:23:27,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,840 INFO L175 Difference]: Start difference. First operand has 287 places, 279 transitions, 590 flow. Second operand 3 states and 820 transitions. [2022-11-02 20:23:27,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 278 transitions, 624 flow [2022-11-02 20:23:27,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 278 transitions, 594 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:27,848 INFO L231 Difference]: Finished difference. Result has 283 places, 278 transitions, 562 flow [2022-11-02 20:23:27,849 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=283, PETRI_TRANSITIONS=278} [2022-11-02 20:23:27,850 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -6 predicate places. [2022-11-02 20:23:27,850 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 278 transitions, 562 flow [2022-11-02 20:23:27,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:27,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:27,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:23:27,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:27,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:27,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1758764611, now seen corresponding path program 1 times [2022-11-02 20:23:27,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:27,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98958476] [2022-11-02 20:23:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:27,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:27,968 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 20:23:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:27,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98958476] [2022-11-02 20:23:27,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98958476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:27,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:27,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:27,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518698866] [2022-11-02 20:23:27,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:27,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:27,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:27,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:27,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:27,978 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 286 [2022-11-02 20:23:27,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 278 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:27,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 286 [2022-11-02 20:23:27,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:28,075 INFO L130 PetriNetUnfolder]: 4/443 cut-off events. [2022-11-02 20:23:28,075 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:23:28,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 443 events. 4/443 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1087 event pairs, 4 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 395. Up to 17 conditions per place. [2022-11-02 20:23:28,078 INFO L137 encePairwiseOnDemand]: 281/286 looper letters, 10 selfloop transitions, 1 changer transitions 0/274 dead transitions. [2022-11-02 20:23:28,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 274 transitions, 576 flow [2022-11-02 20:23:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:28,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:28,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2022-11-02 20:23:28,082 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9615384615384616 [2022-11-02 20:23:28,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2022-11-02 20:23:28,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2022-11-02 20:23:28,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:28,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2022-11-02 20:23:28,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 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 20:23:28,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:28,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:28,091 INFO L175 Difference]: Start difference. First operand has 283 places, 278 transitions, 562 flow. Second operand 3 states and 825 transitions. [2022-11-02 20:23:28,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 274 transitions, 576 flow [2022-11-02 20:23:28,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 274 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:23:28,098 INFO L231 Difference]: Finished difference. Result has 279 places, 274 transitions, 552 flow [2022-11-02 20:23:28,099 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=279, PETRI_TRANSITIONS=274} [2022-11-02 20:23:28,100 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -10 predicate places. [2022-11-02 20:23:28,100 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 274 transitions, 552 flow [2022-11-02 20:23:28,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:28,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:28,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:28,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:23:28,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:28,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:28,113 INFO L85 PathProgramCache]: Analyzing trace with hash 894955619, now seen corresponding path program 1 times [2022-11-02 20:23:28,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:28,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92236225] [2022-11-02 20:23:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:28,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:28,833 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 20:23:28,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92236225] [2022-11-02 20:23:28,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92236225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:28,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:28,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:28,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061034021] [2022-11-02 20:23:28,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:28,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:28,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:28,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:28,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:28,839 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 286 [2022-11-02 20:23:28,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 274 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:28,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:28,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 286 [2022-11-02 20:23:28,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:29,804 INFO L130 PetriNetUnfolder]: 925/3010 cut-off events. [2022-11-02 20:23:29,805 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:29,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4977 conditions, 3010 events. 925/3010 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19016 event pairs, 925 based on Foata normal form. 0/2645 useless extension candidates. Maximal degree in co-relation 4892. Up to 1957 conditions per place. [2022-11-02 20:23:29,823 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 106 selfloop transitions, 5 changer transitions 0/273 dead transitions. [2022-11-02 20:23:29,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 273 transitions, 772 flow [2022-11-02 20:23:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:29,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1120 transitions. [2022-11-02 20:23:29,828 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6526806526806527 [2022-11-02 20:23:29,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1120 transitions. [2022-11-02 20:23:29,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1120 transitions. [2022-11-02 20:23:29,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:29,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1120 transitions. [2022-11-02 20:23:29,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,839 INFO L175 Difference]: Start difference. First operand has 279 places, 274 transitions, 552 flow. Second operand 6 states and 1120 transitions. [2022-11-02 20:23:29,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 273 transitions, 772 flow [2022-11-02 20:23:29,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 273 transitions, 771 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:29,847 INFO L231 Difference]: Finished difference. Result has 282 places, 273 transitions, 559 flow [2022-11-02 20:23:29,847 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=559, PETRI_PLACES=282, PETRI_TRANSITIONS=273} [2022-11-02 20:23:29,851 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -7 predicate places. [2022-11-02 20:23:29,851 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 273 transitions, 559 flow [2022-11-02 20:23:29,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:29,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:29,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:23:29,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:29,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1539731552, now seen corresponding path program 1 times [2022-11-02 20:23:29,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:29,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424970549] [2022-11-02 20:23:29,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:29,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:29,993 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 20:23:29,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:29,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424970549] [2022-11-02 20:23:29,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424970549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:29,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:29,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702962645] [2022-11-02 20:23:29,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:29,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:29,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:29,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:29,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:29,999 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 286 [2022-11-02 20:23:30,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 273 transitions, 559 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:30,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 286 [2022-11-02 20:23:30,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:30,098 INFO L130 PetriNetUnfolder]: 9/405 cut-off events. [2022-11-02 20:23:30,099 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:30,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 405 events. 9/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 776 event pairs, 9 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 379. Up to 35 conditions per place. [2022-11-02 20:23:30,102 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 16 selfloop transitions, 2 changer transitions 0/272 dead transitions. [2022-11-02 20:23:30,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 272 transitions, 593 flow [2022-11-02 20:23:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:30,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:30,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2022-11-02 20:23:30,105 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9557109557109557 [2022-11-02 20:23:30,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2022-11-02 20:23:30,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2022-11-02 20:23:30,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:30,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2022-11-02 20:23:30,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,114 INFO L175 Difference]: Start difference. First operand has 282 places, 273 transitions, 559 flow. Second operand 3 states and 820 transitions. [2022-11-02 20:23:30,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 272 transitions, 593 flow [2022-11-02 20:23:30,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 272 transitions, 583 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:30,121 INFO L231 Difference]: Finished difference. Result has 278 places, 272 transitions, 551 flow [2022-11-02 20:23:30,122 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=551, PETRI_PLACES=278, PETRI_TRANSITIONS=272} [2022-11-02 20:23:30,125 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -11 predicate places. [2022-11-02 20:23:30,126 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 272 transitions, 551 flow [2022-11-02 20:23:30,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:30,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:30,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:23:30,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:30,128 INFO L85 PathProgramCache]: Analyzing trace with hash -930597695, now seen corresponding path program 1 times [2022-11-02 20:23:30,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:30,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034049042] [2022-11-02 20:23:30,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:30,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:30,229 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 20:23:30,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:30,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034049042] [2022-11-02 20:23:30,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034049042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:30,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:30,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:30,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602929798] [2022-11-02 20:23:30,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:30,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:30,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:30,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:30,242 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 286 [2022-11-02 20:23:30,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 272 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:30,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 286 [2022-11-02 20:23:30,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:30,395 INFO L130 PetriNetUnfolder]: 4/361 cut-off events. [2022-11-02 20:23:30,395 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:23:30,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 361 events. 4/361 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 524 event pairs, 4 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 316. Up to 17 conditions per place. [2022-11-02 20:23:30,398 INFO L137 encePairwiseOnDemand]: 281/286 looper letters, 10 selfloop transitions, 1 changer transitions 0/268 dead transitions. [2022-11-02 20:23:30,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 268 transitions, 565 flow [2022-11-02 20:23:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:30,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2022-11-02 20:23:30,402 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9615384615384616 [2022-11-02 20:23:30,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2022-11-02 20:23:30,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2022-11-02 20:23:30,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:30,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2022-11-02 20:23:30,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 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 20:23:30,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,409 INFO L175 Difference]: Start difference. First operand has 278 places, 272 transitions, 551 flow. Second operand 3 states and 825 transitions. [2022-11-02 20:23:30,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 268 transitions, 565 flow [2022-11-02 20:23:30,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 268 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:23:30,415 INFO L231 Difference]: Finished difference. Result has 274 places, 268 transitions, 541 flow [2022-11-02 20:23:30,416 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=274, PETRI_TRANSITIONS=268} [2022-11-02 20:23:30,416 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -15 predicate places. [2022-11-02 20:23:30,417 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 268 transitions, 541 flow [2022-11-02 20:23:30,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:30,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:30,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:23:30,418 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:30,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1661222507, now seen corresponding path program 1 times [2022-11-02 20:23:30,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:30,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310306631] [2022-11-02 20:23:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:30,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:31,373 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 20:23:31,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:31,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310306631] [2022-11-02 20:23:31,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310306631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:31,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:31,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:31,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717858793] [2022-11-02 20:23:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:31,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:31,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:31,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:31,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:31,383 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 286 [2022-11-02 20:23:31,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 268 transitions, 541 flow. Second operand has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:31,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:31,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 286 [2022-11-02 20:23:31,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:32,445 INFO L130 PetriNetUnfolder]: 925/2921 cut-off events. [2022-11-02 20:23:32,446 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:32,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4888 conditions, 2921 events. 925/2921 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18273 event pairs, 925 based on Foata normal form. 0/2590 useless extension candidates. Maximal degree in co-relation 4804. Up to 1956 conditions per place. [2022-11-02 20:23:32,468 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 105 selfloop transitions, 5 changer transitions 0/267 dead transitions. [2022-11-02 20:23:32,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 267 transitions, 759 flow [2022-11-02 20:23:32,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1119 transitions. [2022-11-02 20:23:32,473 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6520979020979021 [2022-11-02 20:23:32,474 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1119 transitions. [2022-11-02 20:23:32,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1119 transitions. [2022-11-02 20:23:32,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:32,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1119 transitions. [2022-11-02 20:23:32,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.5) internal successors, (1119), 6 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,485 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,485 INFO L175 Difference]: Start difference. First operand has 274 places, 268 transitions, 541 flow. Second operand 6 states and 1119 transitions. [2022-11-02 20:23:32,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 267 transitions, 759 flow [2022-11-02 20:23:32,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 267 transitions, 758 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:32,494 INFO L231 Difference]: Finished difference. Result has 277 places, 267 transitions, 548 flow [2022-11-02 20:23:32,495 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=548, PETRI_PLACES=277, PETRI_TRANSITIONS=267} [2022-11-02 20:23:32,498 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -12 predicate places. [2022-11-02 20:23:32,498 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 267 transitions, 548 flow [2022-11-02 20:23:32,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:32,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:32,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:23:32,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:32,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1597179399, now seen corresponding path program 1 times [2022-11-02 20:23:32,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:32,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285041483] [2022-11-02 20:23:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:33,569 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 20:23:33,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:33,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285041483] [2022-11-02 20:23:33,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285041483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:33,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:33,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:33,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876914125] [2022-11-02 20:23:33,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:33,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:33,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:33,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:33,575 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-02 20:23:33,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 267 transitions, 548 flow. Second operand has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:33,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:33,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-02 20:23:33,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:35,269 INFO L130 PetriNetUnfolder]: 1392/4456 cut-off events. [2022-11-02 20:23:35,270 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:23:35,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7405 conditions, 4456 events. 1392/4456 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32516 event pairs, 181 based on Foata normal form. 0/4011 useless extension candidates. Maximal degree in co-relation 7321. Up to 1396 conditions per place. [2022-11-02 20:23:35,306 INFO L137 encePairwiseOnDemand]: 267/286 looper letters, 210 selfloop transitions, 38 changer transitions 0/408 dead transitions. [2022-11-02 20:23:35,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 408 transitions, 1326 flow [2022-11-02 20:23:35,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:35,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:35,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1276 transitions. [2022-11-02 20:23:35,312 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2022-11-02 20:23:35,313 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1276 transitions. [2022-11-02 20:23:35,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1276 transitions. [2022-11-02 20:23:35,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:35,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1276 transitions. [2022-11-02 20:23:35,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,325 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,325 INFO L175 Difference]: Start difference. First operand has 277 places, 267 transitions, 548 flow. Second operand 6 states and 1276 transitions. [2022-11-02 20:23:35,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 408 transitions, 1326 flow [2022-11-02 20:23:35,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 408 transitions, 1316 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:35,338 INFO L231 Difference]: Finished difference. Result has 281 places, 303 transitions, 796 flow [2022-11-02 20:23:35,339 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=796, PETRI_PLACES=281, PETRI_TRANSITIONS=303} [2022-11-02 20:23:35,340 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -8 predicate places. [2022-11-02 20:23:35,340 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 303 transitions, 796 flow [2022-11-02 20:23:35,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:35,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:35,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:23:35,343 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2099699453, now seen corresponding path program 1 times [2022-11-02 20:23:35,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:35,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574064145] [2022-11-02 20:23:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:35,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:36,297 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 20:23:36,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:36,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574064145] [2022-11-02 20:23:36,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574064145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:36,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:36,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:36,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009001773] [2022-11-02 20:23:36,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:36,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:36,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:36,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:36,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:36,311 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 286 [2022-11-02 20:23:36,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 303 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:36,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:36,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 286 [2022-11-02 20:23:36,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:37,988 INFO L130 PetriNetUnfolder]: 1425/4558 cut-off events. [2022-11-02 20:23:37,988 INFO L131 PetriNetUnfolder]: For 1051/1051 co-relation queries the response was YES. [2022-11-02 20:23:38,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8680 conditions, 4558 events. 1425/4558 cut-off events. For 1051/1051 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32924 event pairs, 936 based on Foata normal form. 0/4111 useless extension candidates. Maximal degree in co-relation 8594. Up to 2720 conditions per place. [2022-11-02 20:23:38,036 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 227 selfloop transitions, 5 changer transitions 0/394 dead transitions. [2022-11-02 20:23:38,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 394 transitions, 1482 flow [2022-11-02 20:23:38,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:38,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1234 transitions. [2022-11-02 20:23:38,042 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7191142191142191 [2022-11-02 20:23:38,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1234 transitions. [2022-11-02 20:23:38,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1234 transitions. [2022-11-02 20:23:38,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:38,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1234 transitions. [2022-11-02 20:23:38,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,053 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,053 INFO L175 Difference]: Start difference. First operand has 281 places, 303 transitions, 796 flow. Second operand 6 states and 1234 transitions. [2022-11-02 20:23:38,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 394 transitions, 1482 flow [2022-11-02 20:23:38,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 394 transitions, 1482 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:38,072 INFO L231 Difference]: Finished difference. Result has 285 places, 302 transitions, 804 flow [2022-11-02 20:23:38,073 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=285, PETRI_TRANSITIONS=302} [2022-11-02 20:23:38,074 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, -4 predicate places. [2022-11-02 20:23:38,075 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 302 transitions, 804 flow [2022-11-02 20:23:38,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:38,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:38,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:23:38,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:38,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:38,078 INFO L85 PathProgramCache]: Analyzing trace with hash 449131661, now seen corresponding path program 1 times [2022-11-02 20:23:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:38,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142372707] [2022-11-02 20:23:38,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:38,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:38,950 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 20:23:38,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:38,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142372707] [2022-11-02 20:23:38,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142372707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:38,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:38,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:38,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449174169] [2022-11-02 20:23:38,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:38,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:38,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:38,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:38,956 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 286 [2022-11-02 20:23:38,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 302 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 177.66666666666666) internal successors, (1066), 6 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:38,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 286 [2022-11-02 20:23:38,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:41,341 INFO L130 PetriNetUnfolder]: 1814/5666 cut-off events. [2022-11-02 20:23:41,342 INFO L131 PetriNetUnfolder]: For 1342/1346 co-relation queries the response was YES. [2022-11-02 20:23:41,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10889 conditions, 5666 events. 1814/5666 cut-off events. For 1342/1346 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 43878 event pairs, 351 based on Foata normal form. 0/5218 useless extension candidates. Maximal degree in co-relation 10799. Up to 2162 conditions per place. [2022-11-02 20:23:41,385 INFO L137 encePairwiseOnDemand]: 265/286 looper letters, 253 selfloop transitions, 71 changer transitions 0/481 dead transitions. [2022-11-02 20:23:41,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 481 transitions, 2066 flow [2022-11-02 20:23:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:41,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:41,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1269 transitions. [2022-11-02 20:23:41,390 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7395104895104895 [2022-11-02 20:23:41,391 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1269 transitions. [2022-11-02 20:23:41,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1269 transitions. [2022-11-02 20:23:41,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:41,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1269 transitions. [2022-11-02 20:23:41,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,413 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,423 INFO L175 Difference]: Start difference. First operand has 285 places, 302 transitions, 804 flow. Second operand 6 states and 1269 transitions. [2022-11-02 20:23:41,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 481 transitions, 2066 flow [2022-11-02 20:23:41,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 481 transitions, 2016 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:41,441 INFO L231 Difference]: Finished difference. Result has 290 places, 371 transitions, 1452 flow [2022-11-02 20:23:41,442 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1452, PETRI_PLACES=290, PETRI_TRANSITIONS=371} [2022-11-02 20:23:41,443 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 1 predicate places. [2022-11-02 20:23:41,443 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 371 transitions, 1452 flow [2022-11-02 20:23:41,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.66666666666666) internal successors, (1066), 6 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:41,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:41,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:23:41,446 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:41,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:41,447 INFO L85 PathProgramCache]: Analyzing trace with hash 544060034, now seen corresponding path program 1 times [2022-11-02 20:23:41,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:41,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035230570] [2022-11-02 20:23:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:41,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:42,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:42,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035230570] [2022-11-02 20:23:42,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035230570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:42,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:42,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:42,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473874907] [2022-11-02 20:23:42,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:42,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:42,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:42,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:42,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:42,401 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-02 20:23:42,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 371 transitions, 1452 flow. Second operand has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:42,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:42,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-02 20:23:42,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:44,411 INFO L130 PetriNetUnfolder]: 1933/6129 cut-off events. [2022-11-02 20:23:44,411 INFO L131 PetriNetUnfolder]: For 3619/3666 co-relation queries the response was YES. [2022-11-02 20:23:44,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14053 conditions, 6129 events. 1933/6129 cut-off events. For 3619/3666 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 48148 event pairs, 1000 based on Foata normal form. 0/5716 useless extension candidates. Maximal degree in co-relation 13962. Up to 3830 conditions per place. [2022-11-02 20:23:44,471 INFO L137 encePairwiseOnDemand]: 263/286 looper letters, 240 selfloop transitions, 89 changer transitions 0/490 dead transitions. [2022-11-02 20:23:44,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 490 transitions, 2630 flow [2022-11-02 20:23:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:44,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1233 transitions. [2022-11-02 20:23:44,476 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7185314685314685 [2022-11-02 20:23:44,476 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1233 transitions. [2022-11-02 20:23:44,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1233 transitions. [2022-11-02 20:23:44,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:44,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1233 transitions. [2022-11-02 20:23:44,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:44,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:44,488 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:44,488 INFO L175 Difference]: Start difference. First operand has 290 places, 371 transitions, 1452 flow. Second operand 6 states and 1233 transitions. [2022-11-02 20:23:44,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 490 transitions, 2630 flow [2022-11-02 20:23:44,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 490 transitions, 2630 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:44,524 INFO L231 Difference]: Finished difference. Result has 300 places, 455 transitions, 2254 flow [2022-11-02 20:23:44,528 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2254, PETRI_PLACES=300, PETRI_TRANSITIONS=455} [2022-11-02 20:23:44,529 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 11 predicate places. [2022-11-02 20:23:44,530 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 455 transitions, 2254 flow [2022-11-02 20:23:44,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:44,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:44,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:44,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:23:44,532 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:44,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:44,532 INFO L85 PathProgramCache]: Analyzing trace with hash 858847841, now seen corresponding path program 1 times [2022-11-02 20:23:44,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:44,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219423011] [2022-11-02 20:23:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:44,825 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 20:23:44,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:44,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219423011] [2022-11-02 20:23:44,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219423011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:44,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:44,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:23:44,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432255528] [2022-11-02 20:23:44,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:44,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:44,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:44,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:44,830 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 286 [2022-11-02 20:23:44,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 455 transitions, 2254 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:44,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:44,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 286 [2022-11-02 20:23:44,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:45,387 INFO L130 PetriNetUnfolder]: 274/1903 cut-off events. [2022-11-02 20:23:45,387 INFO L131 PetriNetUnfolder]: For 1031/1094 co-relation queries the response was YES. [2022-11-02 20:23:45,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 1903 events. 274/1903 cut-off events. For 1031/1094 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13058 event pairs, 25 based on Foata normal form. 4/1827 useless extension candidates. Maximal degree in co-relation 3798. Up to 272 conditions per place. [2022-11-02 20:23:45,406 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 15 selfloop transitions, 6 changer transitions 0/395 dead transitions. [2022-11-02 20:23:45,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 395 transitions, 1732 flow [2022-11-02 20:23:45,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:45,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 836 transitions. [2022-11-02 20:23:45,412 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9743589743589743 [2022-11-02 20:23:45,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 836 transitions. [2022-11-02 20:23:45,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 836 transitions. [2022-11-02 20:23:45,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:45,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 836 transitions. [2022-11-02 20:23:45,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,420 INFO L175 Difference]: Start difference. First operand has 300 places, 455 transitions, 2254 flow. Second operand 3 states and 836 transitions. [2022-11-02 20:23:45,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 395 transitions, 1732 flow [2022-11-02 20:23:45,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 395 transitions, 1644 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:45,444 INFO L231 Difference]: Finished difference. Result has 303 places, 393 transitions, 1624 flow [2022-11-02 20:23:45,445 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1590, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1624, PETRI_PLACES=303, PETRI_TRANSITIONS=393} [2022-11-02 20:23:45,446 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 14 predicate places. [2022-11-02 20:23:45,447 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 393 transitions, 1624 flow [2022-11-02 20:23:45,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:45,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:45,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:23:45,448 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 654097040, now seen corresponding path program 1 times [2022-11-02 20:23:45,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:45,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223568566] [2022-11-02 20:23:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:45,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:46,205 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 20:23:46,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:46,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223568566] [2022-11-02 20:23:46,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223568566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:46,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:46,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:46,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364267443] [2022-11-02 20:23:46,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:46,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:46,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:46,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:46,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:46,210 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-02 20:23:46,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 393 transitions, 1624 flow. Second operand has 6 states, 6 states have (on average 181.16666666666666) internal successors, (1087), 6 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:46,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:46,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-02 20:23:46,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:48,651 INFO L130 PetriNetUnfolder]: 1230/4300 cut-off events. [2022-11-02 20:23:48,652 INFO L131 PetriNetUnfolder]: For 3311/3340 co-relation queries the response was YES. [2022-11-02 20:23:48,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10867 conditions, 4300 events. 1230/4300 cut-off events. For 3311/3340 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33119 event pairs, 209 based on Foata normal form. 0/4126 useless extension candidates. Maximal degree in co-relation 10768. Up to 1159 conditions per place. [2022-11-02 20:23:48,692 INFO L137 encePairwiseOnDemand]: 267/286 looper letters, 376 selfloop transitions, 124 changer transitions 4/669 dead transitions. [2022-11-02 20:23:48,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 669 transitions, 4198 flow [2022-11-02 20:23:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1321 transitions. [2022-11-02 20:23:48,698 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7698135198135199 [2022-11-02 20:23:48,698 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1321 transitions. [2022-11-02 20:23:48,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1321 transitions. [2022-11-02 20:23:48,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:48,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1321 transitions. [2022-11-02 20:23:48,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,709 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,709 INFO L175 Difference]: Start difference. First operand has 303 places, 393 transitions, 1624 flow. Second operand 6 states and 1321 transitions. [2022-11-02 20:23:48,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 669 transitions, 4198 flow [2022-11-02 20:23:48,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 669 transitions, 4192 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:48,746 INFO L231 Difference]: Finished difference. Result has 311 places, 495 transitions, 3000 flow [2022-11-02 20:23:48,747 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3000, PETRI_PLACES=311, PETRI_TRANSITIONS=495} [2022-11-02 20:23:48,748 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 22 predicate places. [2022-11-02 20:23:48,748 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 495 transitions, 3000 flow [2022-11-02 20:23:48,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.16666666666666) internal successors, (1087), 6 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:48,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:48,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:23:48,750 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:48,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:48,751 INFO L85 PathProgramCache]: Analyzing trace with hash 859331813, now seen corresponding path program 1 times [2022-11-02 20:23:48,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:48,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45547894] [2022-11-02 20:23:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:48,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:49,564 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 20:23:49,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:49,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45547894] [2022-11-02 20:23:49,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45547894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:49,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:49,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:49,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403133945] [2022-11-02 20:23:49,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:49,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:49,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:49,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:49,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:49,568 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 286 [2022-11-02 20:23:49,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 495 transitions, 3000 flow. Second operand has 6 states, 6 states have (on average 184.33333333333334) internal successors, (1106), 6 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:49,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:49,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 286 [2022-11-02 20:23:49,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:51,367 INFO L130 PetriNetUnfolder]: 1281/4364 cut-off events. [2022-11-02 20:23:51,367 INFO L131 PetriNetUnfolder]: For 6065/6105 co-relation queries the response was YES. [2022-11-02 20:23:51,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12642 conditions, 4364 events. 1281/4364 cut-off events. For 6065/6105 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33280 event pairs, 469 based on Foata normal form. 0/4236 useless extension candidates. Maximal degree in co-relation 12540. Up to 2346 conditions per place. [2022-11-02 20:23:51,406 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 410 selfloop transitions, 17 changer transitions 0/594 dead transitions. [2022-11-02 20:23:51,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 594 transitions, 4444 flow [2022-11-02 20:23:51,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2022-11-02 20:23:51,411 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7132867132867133 [2022-11-02 20:23:51,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1224 transitions. [2022-11-02 20:23:51,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1224 transitions. [2022-11-02 20:23:51,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:51,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1224 transitions. [2022-11-02 20:23:51,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:51,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:51,422 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:51,422 INFO L175 Difference]: Start difference. First operand has 311 places, 495 transitions, 3000 flow. Second operand 6 states and 1224 transitions. [2022-11-02 20:23:51,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 594 transitions, 4444 flow [2022-11-02 20:23:51,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 594 transitions, 4426 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:51,472 INFO L231 Difference]: Finished difference. Result has 315 places, 494 transitions, 3014 flow [2022-11-02 20:23:51,473 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2980, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3014, PETRI_PLACES=315, PETRI_TRANSITIONS=494} [2022-11-02 20:23:51,474 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 26 predicate places. [2022-11-02 20:23:51,474 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 494 transitions, 3014 flow [2022-11-02 20:23:51,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.33333333333334) internal successors, (1106), 6 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:51,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:51,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:51,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:23:51,476 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:51,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:51,477 INFO L85 PathProgramCache]: Analyzing trace with hash 64130171, now seen corresponding path program 1 times [2022-11-02 20:23:51,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:51,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636523158] [2022-11-02 20:23:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:51,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:54,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:54,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636523158] [2022-11-02 20:23:54,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636523158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:54,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:54,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-02 20:23:54,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637939008] [2022-11-02 20:23:54,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:54,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:23:54,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:54,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:23:54,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:23:54,099 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 286 [2022-11-02 20:23:54,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 494 transitions, 3014 flow. Second operand has 19 states, 19 states have (on average 129.89473684210526) internal successors, (2468), 19 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:54,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 286 [2022-11-02 20:23:54,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:58,228 INFO L130 PetriNetUnfolder]: 1779/5473 cut-off events. [2022-11-02 20:23:58,228 INFO L131 PetriNetUnfolder]: For 6985/6985 co-relation queries the response was YES. [2022-11-02 20:23:58,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15889 conditions, 5473 events. 1779/5473 cut-off events. For 6985/6985 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 42467 event pairs, 262 based on Foata normal form. 15/5354 useless extension candidates. Maximal degree in co-relation 15765. Up to 2235 conditions per place. [2022-11-02 20:23:58,271 INFO L137 encePairwiseOnDemand]: 257/286 looper letters, 524 selfloop transitions, 108 changer transitions 1/749 dead transitions. [2022-11-02 20:23:58,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 749 transitions, 5696 flow [2022-11-02 20:23:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-02 20:23:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-02 20:23:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4968 transitions. [2022-11-02 20:23:58,293 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4694764694764695 [2022-11-02 20:23:58,293 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4968 transitions. [2022-11-02 20:23:58,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4968 transitions. [2022-11-02 20:23:58,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:58,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4968 transitions. [2022-11-02 20:23:58,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 134.27027027027026) internal successors, (4968), 37 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:58,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 286.0) internal successors, (10868), 38 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:58,346 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 286.0) internal successors, (10868), 38 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:58,346 INFO L175 Difference]: Start difference. First operand has 315 places, 494 transitions, 3014 flow. Second operand 37 states and 4968 transitions. [2022-11-02 20:23:58,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 749 transitions, 5696 flow [2022-11-02 20:23:58,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 749 transitions, 5636 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:58,407 INFO L231 Difference]: Finished difference. Result has 352 places, 533 transitions, 3539 flow [2022-11-02 20:23:58,408 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2980, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=3539, PETRI_PLACES=352, PETRI_TRANSITIONS=533} [2022-11-02 20:23:58,409 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 63 predicate places. [2022-11-02 20:23:58,409 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 533 transitions, 3539 flow [2022-11-02 20:23:58,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 129.89473684210526) internal successors, (2468), 19 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:58,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:58,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:58,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:23:58,412 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:23:58,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:58,413 INFO L85 PathProgramCache]: Analyzing trace with hash 247325162, now seen corresponding path program 1 times [2022-11-02 20:23:58,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:58,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119890698] [2022-11-02 20:23:58,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:58,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:01,485 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 20:24:01,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:01,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119890698] [2022-11-02 20:24:01,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119890698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:01,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:01,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-02 20:24:01,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853179371] [2022-11-02 20:24:01,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:01,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-02 20:24:01,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:01,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-02 20:24:01,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:24:01,496 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-02 20:24:01,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 533 transitions, 3539 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:01,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:01,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-02 20:24:01,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:06,534 INFO L130 PetriNetUnfolder]: 2166/6677 cut-off events. [2022-11-02 20:24:06,534 INFO L131 PetriNetUnfolder]: For 12053/12061 co-relation queries the response was YES. [2022-11-02 20:24:06,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21085 conditions, 6677 events. 2166/6677 cut-off events. For 12053/12061 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 54914 event pairs, 259 based on Foata normal form. 18/6553 useless extension candidates. Maximal degree in co-relation 20948. Up to 1602 conditions per place. [2022-11-02 20:24:06,580 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 682 selfloop transitions, 147 changer transitions 3/950 dead transitions. [2022-11-02 20:24:06,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 950 transitions, 7940 flow [2022-11-02 20:24:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 20:24:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 20:24:06,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4233 transitions. [2022-11-02 20:24:06,593 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.49335664335664337 [2022-11-02 20:24:06,593 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4233 transitions. [2022-11-02 20:24:06,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4233 transitions. [2022-11-02 20:24:06,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:06,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4233 transitions. [2022-11-02 20:24:06,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 141.1) internal successors, (4233), 30 states have internal predecessors, (4233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:06,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 286.0) internal successors, (8866), 31 states have internal predecessors, (8866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:06,626 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 286.0) internal successors, (8866), 31 states have internal predecessors, (8866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:06,626 INFO L175 Difference]: Start difference. First operand has 352 places, 533 transitions, 3539 flow. Second operand 30 states and 4233 transitions. [2022-11-02 20:24:06,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 950 transitions, 7940 flow [2022-11-02 20:24:06,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 950 transitions, 7883 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-11-02 20:24:06,724 INFO L231 Difference]: Finished difference. Result has 380 places, 616 transitions, 4910 flow [2022-11-02 20:24:06,725 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3493, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4910, PETRI_PLACES=380, PETRI_TRANSITIONS=616} [2022-11-02 20:24:06,725 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 91 predicate places. [2022-11-02 20:24:06,726 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 616 transitions, 4910 flow [2022-11-02 20:24:06,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:06,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:06,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:06,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:24:06,728 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:24:06,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:06,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1463845344, now seen corresponding path program 2 times [2022-11-02 20:24:06,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:06,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022800664] [2022-11-02 20:24:06,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:06,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:09,380 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 20:24:09,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:09,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022800664] [2022-11-02 20:24:09,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022800664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:09,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:09,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-02 20:24:09,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374703718] [2022-11-02 20:24:09,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:09,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 20:24:09,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:09,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 20:24:09,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:24:09,386 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-11-02 20:24:09,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 616 transitions, 4910 flow. Second operand has 22 states, 22 states have (on average 130.0909090909091) internal successors, (2862), 22 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:09,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:09,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-11-02 20:24:09,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:15,178 INFO L130 PetriNetUnfolder]: 2336/7118 cut-off events. [2022-11-02 20:24:15,178 INFO L131 PetriNetUnfolder]: For 17135/17148 co-relation queries the response was YES. [2022-11-02 20:24:15,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24332 conditions, 7118 events. 2336/7118 cut-off events. For 17135/17148 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 58670 event pairs, 204 based on Foata normal form. 28/7003 useless extension candidates. Maximal degree in co-relation 24182. Up to 1290 conditions per place. [2022-11-02 20:24:15,243 INFO L137 encePairwiseOnDemand]: 253/286 looper letters, 691 selfloop transitions, 201 changer transitions 4/1013 dead transitions. [2022-11-02 20:24:15,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1013 transitions, 9466 flow [2022-11-02 20:24:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-02 20:24:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-02 20:24:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 5203 transitions. [2022-11-02 20:24:15,255 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.47874493927125505 [2022-11-02 20:24:15,255 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 5203 transitions. [2022-11-02 20:24:15,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 5203 transitions. [2022-11-02 20:24:15,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:15,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 5203 transitions. [2022-11-02 20:24:15,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 136.92105263157896) internal successors, (5203), 38 states have internal predecessors, (5203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:15,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 286.0) internal successors, (11154), 39 states have internal predecessors, (11154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:15,289 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 286.0) internal successors, (11154), 39 states have internal predecessors, (11154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:15,289 INFO L175 Difference]: Start difference. First operand has 380 places, 616 transitions, 4910 flow. Second operand 38 states and 5203 transitions. [2022-11-02 20:24:15,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1013 transitions, 9466 flow [2022-11-02 20:24:15,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1013 transitions, 9411 flow, removed 16 selfloop flow, removed 11 redundant places. [2022-11-02 20:24:15,437 INFO L231 Difference]: Finished difference. Result has 420 places, 693 transitions, 6208 flow [2022-11-02 20:24:15,438 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=4869, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=6208, PETRI_PLACES=420, PETRI_TRANSITIONS=693} [2022-11-02 20:24:15,439 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 131 predicate places. [2022-11-02 20:24:15,439 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 693 transitions, 6208 flow [2022-11-02 20:24:15,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 130.0909090909091) internal successors, (2862), 22 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:15,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:15,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:15,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:24:15,441 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:24:15,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:15,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1830050872, now seen corresponding path program 3 times [2022-11-02 20:24:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:15,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315719059] [2022-11-02 20:24:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:15,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,097 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 20:24:18,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:18,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315719059] [2022-11-02 20:24:18,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315719059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:18,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:18,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-02 20:24:18,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749640905] [2022-11-02 20:24:18,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:18,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-02 20:24:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:18,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-02 20:24:18,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:24:18,102 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-02 20:24:18,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 693 transitions, 6208 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:18,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:18,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-02 20:24:18,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:23,972 INFO L130 PetriNetUnfolder]: 2793/8516 cut-off events. [2022-11-02 20:24:23,973 INFO L131 PetriNetUnfolder]: For 27273/27283 co-relation queries the response was YES. [2022-11-02 20:24:24,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31637 conditions, 8516 events. 2793/8516 cut-off events. For 27273/27283 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 74054 event pairs, 418 based on Foata normal form. 25/8367 useless extension candidates. Maximal degree in co-relation 31469. Up to 1784 conditions per place. [2022-11-02 20:24:24,078 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 784 selfloop transitions, 213 changer transitions 3/1119 dead transitions. [2022-11-02 20:24:24,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1119 transitions, 11349 flow [2022-11-02 20:24:24,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-02 20:24:24,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-02 20:24:24,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4505 transitions. [2022-11-02 20:24:24,087 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.49224213286713286 [2022-11-02 20:24:24,087 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4505 transitions. [2022-11-02 20:24:24,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4505 transitions. [2022-11-02 20:24:24,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:24,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4505 transitions. [2022-11-02 20:24:24,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 140.78125) internal successors, (4505), 32 states have internal predecessors, (4505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:24,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 286.0) internal successors, (9438), 33 states have internal predecessors, (9438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:24,112 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 286.0) internal successors, (9438), 33 states have internal predecessors, (9438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:24,113 INFO L175 Difference]: Start difference. First operand has 420 places, 693 transitions, 6208 flow. Second operand 32 states and 4505 transitions. [2022-11-02 20:24:24,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1119 transitions, 11349 flow [2022-11-02 20:24:24,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 1119 transitions, 11195 flow, removed 17 selfloop flow, removed 17 redundant places. [2022-11-02 20:24:24,294 INFO L231 Difference]: Finished difference. Result has 442 places, 763 transitions, 7865 flow [2022-11-02 20:24:24,295 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=6088, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=7865, PETRI_PLACES=442, PETRI_TRANSITIONS=763} [2022-11-02 20:24:24,296 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 153 predicate places. [2022-11-02 20:24:24,296 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 763 transitions, 7865 flow [2022-11-02 20:24:24,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:24,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:24,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:24,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:24:24,298 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:24:24,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:24,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1242773768, now seen corresponding path program 4 times [2022-11-02 20:24:24,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:24,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883085129] [2022-11-02 20:24:24,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:24,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:26,356 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 20:24:26,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:26,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883085129] [2022-11-02 20:24:26,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883085129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:26,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:26,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-02 20:24:26,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524211802] [2022-11-02 20:24:26,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:26,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-02 20:24:26,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:26,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-02 20:24:26,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:24:26,362 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-02 20:24:26,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 763 transitions, 7865 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:26,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:26,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-02 20:24:26,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:32,646 INFO L130 PetriNetUnfolder]: 3296/9971 cut-off events. [2022-11-02 20:24:32,646 INFO L131 PetriNetUnfolder]: For 42872/42886 co-relation queries the response was YES. [2022-11-02 20:24:32,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38993 conditions, 9971 events. 3296/9971 cut-off events. For 42872/42886 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 89890 event pairs, 434 based on Foata normal form. 29/9817 useless extension candidates. Maximal degree in co-relation 38815. Up to 1838 conditions per place. [2022-11-02 20:24:32,757 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 841 selfloop transitions, 275 changer transitions 3/1238 dead transitions. [2022-11-02 20:24:32,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 1238 transitions, 14136 flow [2022-11-02 20:24:32,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-02 20:24:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-02 20:24:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4778 transitions. [2022-11-02 20:24:32,768 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4913615795968737 [2022-11-02 20:24:32,768 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4778 transitions. [2022-11-02 20:24:32,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4778 transitions. [2022-11-02 20:24:32,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:32,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4778 transitions. [2022-11-02 20:24:32,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 140.52941176470588) internal successors, (4778), 34 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:32,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:32,791 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:32,791 INFO L175 Difference]: Start difference. First operand has 442 places, 763 transitions, 7865 flow. Second operand 34 states and 4778 transitions. [2022-11-02 20:24:32,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 1238 transitions, 14136 flow [2022-11-02 20:24:33,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1238 transitions, 14030 flow, removed 16 selfloop flow, removed 17 redundant places. [2022-11-02 20:24:33,141 INFO L231 Difference]: Finished difference. Result has 471 places, 853 transitions, 10300 flow [2022-11-02 20:24:33,141 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=7777, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=10300, PETRI_PLACES=471, PETRI_TRANSITIONS=853} [2022-11-02 20:24:33,142 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 182 predicate places. [2022-11-02 20:24:33,142 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 853 transitions, 10300 flow [2022-11-02 20:24:33,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:33,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:33,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:33,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:24:33,144 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:24:33,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:33,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1523417028, now seen corresponding path program 5 times [2022-11-02 20:24:33,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:33,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171649173] [2022-11-02 20:24:33,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:33,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:35,047 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 20:24:35,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:35,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171649173] [2022-11-02 20:24:35,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171649173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:35,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:35,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-02 20:24:35,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111474472] [2022-11-02 20:24:35,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:35,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-02 20:24:35,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:35,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-02 20:24:35,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:24:35,052 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-02 20:24:35,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 853 transitions, 10300 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:35,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:35,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-02 20:24:35,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:41,948 INFO L130 PetriNetUnfolder]: 3725/11272 cut-off events. [2022-11-02 20:24:41,948 INFO L131 PetriNetUnfolder]: For 63428/63444 co-relation queries the response was YES. [2022-11-02 20:24:42,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46652 conditions, 11272 events. 3725/11272 cut-off events. For 63428/63444 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 105064 event pairs, 477 based on Foata normal form. 31/11106 useless extension candidates. Maximal degree in co-relation 46458. Up to 2268 conditions per place. [2022-11-02 20:24:42,201 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 853 selfloop transitions, 319 changer transitions 3/1294 dead transitions. [2022-11-02 20:24:42,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 1294 transitions, 16447 flow [2022-11-02 20:24:42,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-02 20:24:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-02 20:24:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 4642 transitions. [2022-11-02 20:24:42,211 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.49184149184149184 [2022-11-02 20:24:42,212 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 4642 transitions. [2022-11-02 20:24:42,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 4642 transitions. [2022-11-02 20:24:42,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:42,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 4642 transitions. [2022-11-02 20:24:42,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 140.66666666666666) internal successors, (4642), 33 states have internal predecessors, (4642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:42,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 286.0) internal successors, (9724), 34 states have internal predecessors, (9724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:42,238 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 286.0) internal successors, (9724), 34 states have internal predecessors, (9724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:42,238 INFO L175 Difference]: Start difference. First operand has 471 places, 853 transitions, 10300 flow. Second operand 33 states and 4642 transitions. [2022-11-02 20:24:42,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 1294 transitions, 16447 flow [2022-11-02 20:24:42,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 1294 transitions, 16305 flow, removed 49 selfloop flow, removed 14 redundant places. [2022-11-02 20:24:42,734 INFO L231 Difference]: Finished difference. Result has 500 places, 921 transitions, 12740 flow [2022-11-02 20:24:42,735 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10164, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=252, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=12740, PETRI_PLACES=500, PETRI_TRANSITIONS=921} [2022-11-02 20:24:42,735 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 211 predicate places. [2022-11-02 20:24:42,735 INFO L495 AbstractCegarLoop]: Abstraction has has 500 places, 921 transitions, 12740 flow [2022-11-02 20:24:42,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:42,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:42,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:42,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:24:42,736 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:24:42,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:42,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1838917866, now seen corresponding path program 1 times [2022-11-02 20:24:42,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:42,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977118732] [2022-11-02 20:24:42,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:42,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,508 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 20:24:43,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:43,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977118732] [2022-11-02 20:24:43,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977118732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:43,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:43,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:24:43,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240439720] [2022-11-02 20:24:43,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:43,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:24:43,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:24:43,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:43,511 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-02 20:24:43,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 921 transitions, 12740 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:43,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:43,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-02 20:24:43,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:48,070 INFO L130 PetriNetUnfolder]: 2988/10019 cut-off events. [2022-11-02 20:24:48,070 INFO L131 PetriNetUnfolder]: For 68062/68340 co-relation queries the response was YES. [2022-11-02 20:24:48,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42865 conditions, 10019 events. 2988/10019 cut-off events. For 68062/68340 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 95426 event pairs, 1041 based on Foata normal form. 110/9981 useless extension candidates. Maximal degree in co-relation 42678. Up to 5775 conditions per place. [2022-11-02 20:24:48,239 INFO L137 encePairwiseOnDemand]: 263/286 looper letters, 590 selfloop transitions, 97 changer transitions 106/1055 dead transitions. [2022-11-02 20:24:48,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1055 transitions, 15494 flow [2022-11-02 20:24:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:24:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:24:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1231 transitions. [2022-11-02 20:24:48,242 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7173659673659674 [2022-11-02 20:24:48,243 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1231 transitions. [2022-11-02 20:24:48,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1231 transitions. [2022-11-02 20:24:48,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:48,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1231 transitions. [2022-11-02 20:24:48,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.16666666666666) internal successors, (1231), 6 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:48,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:48,246 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:48,246 INFO L175 Difference]: Start difference. First operand has 500 places, 921 transitions, 12740 flow. Second operand 6 states and 1231 transitions. [2022-11-02 20:24:48,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1055 transitions, 15494 flow [2022-11-02 20:24:48,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 1055 transitions, 15363 flow, removed 40 selfloop flow, removed 15 redundant places. [2022-11-02 20:24:48,838 INFO L231 Difference]: Finished difference. Result has 495 places, 916 transitions, 12288 flow [2022-11-02 20:24:48,839 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12609, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=872, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=12288, PETRI_PLACES=495, PETRI_TRANSITIONS=916} [2022-11-02 20:24:48,840 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 206 predicate places. [2022-11-02 20:24:48,840 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 916 transitions, 12288 flow [2022-11-02 20:24:48,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:48,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:48,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:48,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:24:48,841 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:24:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash 715657019, now seen corresponding path program 1 times [2022-11-02 20:24:48,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:48,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346679435] [2022-11-02 20:24:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:48,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:50,858 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 20:24:50,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:50,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346679435] [2022-11-02 20:24:50,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346679435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:50,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:50,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-02 20:24:50,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242276994] [2022-11-02 20:24:50,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:50,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-02 20:24:50,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:50,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-02 20:24:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:24:50,863 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-02 20:24:50,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 916 transitions, 12288 flow. Second operand has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:50,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:50,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-02 20:24:50,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:58,130 INFO L130 PetriNetUnfolder]: 3658/10904 cut-off events. [2022-11-02 20:24:58,130 INFO L131 PetriNetUnfolder]: For 84339/84344 co-relation queries the response was YES. [2022-11-02 20:24:58,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50079 conditions, 10904 events. 3658/10904 cut-off events. For 84339/84344 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 99181 event pairs, 492 based on Foata normal form. 10/10832 useless extension candidates. Maximal degree in co-relation 49872. Up to 2252 conditions per place. [2022-11-02 20:24:58,317 INFO L137 encePairwiseOnDemand]: 256/286 looper letters, 772 selfloop transitions, 250 changer transitions 29/1170 dead transitions. [2022-11-02 20:24:58,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 1170 transitions, 16390 flow [2022-11-02 20:24:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-02 20:24:58,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-02 20:24:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4677 transitions. [2022-11-02 20:24:58,328 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4809749074454957 [2022-11-02 20:24:58,329 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4677 transitions. [2022-11-02 20:24:58,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4677 transitions. [2022-11-02 20:24:58,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:58,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4677 transitions. [2022-11-02 20:24:58,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 137.55882352941177) internal successors, (4677), 34 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:58,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:58,357 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:58,358 INFO L175 Difference]: Start difference. First operand has 495 places, 916 transitions, 12288 flow. Second operand 34 states and 4677 transitions. [2022-11-02 20:24:58,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 1170 transitions, 16390 flow [2022-11-02 20:24:58,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 1170 transitions, 15976 flow, removed 139 selfloop flow, removed 11 redundant places. [2022-11-02 20:24:58,978 INFO L231 Difference]: Finished difference. Result has 496 places, 925 transitions, 12848 flow [2022-11-02 20:24:58,978 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=11914, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=916, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=12848, PETRI_PLACES=496, PETRI_TRANSITIONS=925} [2022-11-02 20:24:58,979 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 207 predicate places. [2022-11-02 20:24:58,979 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 925 transitions, 12848 flow [2022-11-02 20:24:58,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:58,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:58,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:58,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:24:58,980 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:24:58,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:58,981 INFO L85 PathProgramCache]: Analyzing trace with hash -123769103, now seen corresponding path program 2 times [2022-11-02 20:24:58,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:58,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609580599] [2022-11-02 20:24:58,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:01,318 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 20:25:01,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:01,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609580599] [2022-11-02 20:25:01,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609580599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:01,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:01,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-02 20:25:01,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139073761] [2022-11-02 20:25:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:01,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 20:25:01,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:01,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 20:25:01,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:25:01,323 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-11-02 20:25:01,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 925 transitions, 12848 flow. Second operand has 22 states, 22 states have (on average 130.3181818181818) internal successors, (2867), 22 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:01,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:25:01,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-11-02 20:25:01,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:25:08,795 INFO L130 PetriNetUnfolder]: 3718/11009 cut-off events. [2022-11-02 20:25:08,795 INFO L131 PetriNetUnfolder]: For 97104/97109 co-relation queries the response was YES. [2022-11-02 20:25:08,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51838 conditions, 11009 events. 3718/11009 cut-off events. For 97104/97109 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 100161 event pairs, 447 based on Foata normal form. 10/10950 useless extension candidates. Maximal degree in co-relation 51630. Up to 1999 conditions per place. [2022-11-02 20:25:08,942 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 885 selfloop transitions, 263 changer transitions 31/1296 dead transitions. [2022-11-02 20:25:08,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 1296 transitions, 18813 flow [2022-11-02 20:25:08,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-02 20:25:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-02 20:25:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4928 transitions. [2022-11-02 20:25:08,950 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.47863247863247865 [2022-11-02 20:25:08,951 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4928 transitions. [2022-11-02 20:25:08,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4928 transitions. [2022-11-02 20:25:08,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:25:08,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4928 transitions. [2022-11-02 20:25:08,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 136.88888888888889) internal successors, (4928), 36 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:08,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 286.0) internal successors, (10582), 37 states have internal predecessors, (10582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:08,973 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 286.0) internal successors, (10582), 37 states have internal predecessors, (10582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:08,973 INFO L175 Difference]: Start difference. First operand has 496 places, 925 transitions, 12848 flow. Second operand 36 states and 4928 transitions. [2022-11-02 20:25:08,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 1296 transitions, 18813 flow [2022-11-02 20:25:09,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 1296 transitions, 18480 flow, removed 12 selfloop flow, removed 31 redundant places. [2022-11-02 20:25:09,778 INFO L231 Difference]: Finished difference. Result has 504 places, 937 transitions, 13466 flow [2022-11-02 20:25:09,779 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12515, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=13466, PETRI_PLACES=504, PETRI_TRANSITIONS=937} [2022-11-02 20:25:09,780 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 215 predicate places. [2022-11-02 20:25:09,780 INFO L495 AbstractCegarLoop]: Abstraction has has 504 places, 937 transitions, 13466 flow [2022-11-02 20:25:09,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 130.3181818181818) internal successors, (2867), 22 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:09,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:25:09,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:25:09,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:25:09,782 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:25:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash -173439519, now seen corresponding path program 3 times [2022-11-02 20:25:09,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:09,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131869025] [2022-11-02 20:25:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:09,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:14,229 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 20:25:14,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:14,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131869025] [2022-11-02 20:25:14,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131869025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:14,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:14,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-02 20:25:14,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363254039] [2022-11-02 20:25:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:14,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-02 20:25:14,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:14,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-02 20:25:14,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:25:14,235 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-02 20:25:14,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 937 transitions, 13466 flow. Second operand has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:14,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:25:14,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-02 20:25:14,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:25:22,236 INFO L130 PetriNetUnfolder]: 3700/10877 cut-off events. [2022-11-02 20:25:22,237 INFO L131 PetriNetUnfolder]: For 104545/104549 co-relation queries the response was YES. [2022-11-02 20:25:22,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53170 conditions, 10877 events. 3700/10877 cut-off events. For 104545/104549 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 98376 event pairs, 647 based on Foata normal form. 9/10775 useless extension candidates. Maximal degree in co-relation 52958. Up to 2185 conditions per place. [2022-11-02 20:25:22,422 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 870 selfloop transitions, 265 changer transitions 29/1283 dead transitions. [2022-11-02 20:25:22,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 1283 transitions, 18729 flow [2022-11-02 20:25:22,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-02 20:25:22,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-02 20:25:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4334 transitions. [2022-11-02 20:25:22,429 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.48883374689826303 [2022-11-02 20:25:22,429 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4334 transitions. [2022-11-02 20:25:22,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4334 transitions. [2022-11-02 20:25:22,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:25:22,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4334 transitions. [2022-11-02 20:25:22,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 139.80645161290323) internal successors, (4334), 31 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:22,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 286.0) internal successors, (9152), 32 states have internal predecessors, (9152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:22,451 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 286.0) internal successors, (9152), 32 states have internal predecessors, (9152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:22,451 INFO L175 Difference]: Start difference. First operand has 504 places, 937 transitions, 13466 flow. Second operand 31 states and 4334 transitions. [2022-11-02 20:25:22,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 1283 transitions, 18729 flow [2022-11-02 20:25:23,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 1283 transitions, 18246 flow, removed 30 selfloop flow, removed 30 redundant places. [2022-11-02 20:25:23,280 INFO L231 Difference]: Finished difference. Result has 507 places, 946 transitions, 14101 flow [2022-11-02 20:25:23,281 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13016, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=256, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=14101, PETRI_PLACES=507, PETRI_TRANSITIONS=946} [2022-11-02 20:25:23,282 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 218 predicate places. [2022-11-02 20:25:23,282 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 946 transitions, 14101 flow [2022-11-02 20:25:23,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:23,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:25:23,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:25:23,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 20:25:23,284 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:25:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1777426143, now seen corresponding path program 4 times [2022-11-02 20:25:23,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:23,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048709935] [2022-11-02 20:25:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:25,483 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 20:25:25,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:25,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048709935] [2022-11-02 20:25:25,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048709935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:25,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:25,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-02 20:25:25,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95079810] [2022-11-02 20:25:25,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:25,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-02 20:25:25,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-02 20:25:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:25:25,492 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-11-02 20:25:25,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 946 transitions, 14101 flow. Second operand has 21 states, 21 states have (on average 130.57142857142858) internal successors, (2742), 21 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:25,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:25:25,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-11-02 20:25:25,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:25:34,640 INFO L130 PetriNetUnfolder]: 3734/10985 cut-off events. [2022-11-02 20:25:34,640 INFO L131 PetriNetUnfolder]: For 115686/115691 co-relation queries the response was YES. [2022-11-02 20:25:34,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53795 conditions, 10985 events. 3734/10985 cut-off events. For 115686/115691 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 99945 event pairs, 347 based on Foata normal form. 10/10929 useless extension candidates. Maximal degree in co-relation 53578. Up to 2064 conditions per place. [2022-11-02 20:25:34,827 INFO L137 encePairwiseOnDemand]: 251/286 looper letters, 877 selfloop transitions, 342 changer transitions 37/1373 dead transitions. [2022-11-02 20:25:34,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 1373 transitions, 20417 flow [2022-11-02 20:25:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-02 20:25:34,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-11-02 20:25:34,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 5898 transitions. [2022-11-02 20:25:34,836 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.47959017726459585 [2022-11-02 20:25:34,836 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 5898 transitions. [2022-11-02 20:25:34,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 5898 transitions. [2022-11-02 20:25:34,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:25:34,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 5898 transitions. [2022-11-02 20:25:35,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 137.1627906976744) internal successors, (5898), 43 states have internal predecessors, (5898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:35,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 286.0) internal successors, (12584), 44 states have internal predecessors, (12584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:35,053 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 286.0) internal successors, (12584), 44 states have internal predecessors, (12584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:35,053 INFO L175 Difference]: Start difference. First operand has 507 places, 946 transitions, 14101 flow. Second operand 43 states and 5898 transitions. [2022-11-02 20:25:35,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 1373 transitions, 20417 flow [2022-11-02 20:25:35,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1373 transitions, 19967 flow, removed 15 selfloop flow, removed 26 redundant places. [2022-11-02 20:25:35,860 INFO L231 Difference]: Finished difference. Result has 532 places, 982 transitions, 15120 flow [2022-11-02 20:25:35,861 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13665, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=15120, PETRI_PLACES=532, PETRI_TRANSITIONS=982} [2022-11-02 20:25:35,862 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 243 predicate places. [2022-11-02 20:25:35,862 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 982 transitions, 15120 flow [2022-11-02 20:25:35,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 130.57142857142858) internal successors, (2742), 21 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:35,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:25:35,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:25:35,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 20:25:35,864 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:25:35,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:35,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1136467093, now seen corresponding path program 1 times [2022-11-02 20:25:35,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:35,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556916844] [2022-11-02 20:25:35,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:35,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:38,166 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 20:25:38,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:38,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556916844] [2022-11-02 20:25:38,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556916844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:38,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:38,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-02 20:25:38,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064898306] [2022-11-02 20:25:38,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:38,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 20:25:38,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:38,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 20:25:38,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2022-11-02 20:25:38,171 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 286 [2022-11-02 20:25:38,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 982 transitions, 15120 flow. Second operand has 23 states, 23 states have (on average 129.08695652173913) internal successors, (2969), 23 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:38,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:25:38,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 286 [2022-11-02 20:25:38,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:25:48,937 INFO L130 PetriNetUnfolder]: 4103/12275 cut-off events. [2022-11-02 20:25:48,937 INFO L131 PetriNetUnfolder]: For 135133/135138 co-relation queries the response was YES. [2022-11-02 20:25:49,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60626 conditions, 12275 events. 4103/12275 cut-off events. For 135133/135138 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 113414 event pairs, 855 based on Foata normal form. 17/12204 useless extension candidates. Maximal degree in co-relation 60399. Up to 2091 conditions per place. [2022-11-02 20:25:49,164 INFO L137 encePairwiseOnDemand]: 256/286 looper letters, 1124 selfloop transitions, 203 changer transitions 135/1578 dead transitions. [2022-11-02 20:25:49,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 1578 transitions, 24525 flow [2022-11-02 20:25:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-02 20:25:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-11-02 20:25:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 7257 transitions. [2022-11-02 20:25:49,175 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4698912198912199 [2022-11-02 20:25:49,175 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 7257 transitions. [2022-11-02 20:25:49,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 7257 transitions. [2022-11-02 20:25:49,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:25:49,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 7257 transitions. [2022-11-02 20:25:49,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 134.38888888888889) internal successors, (7257), 54 states have internal predecessors, (7257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:49,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 286.0) internal successors, (15730), 55 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:49,207 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 286.0) internal successors, (15730), 55 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:49,207 INFO L175 Difference]: Start difference. First operand has 532 places, 982 transitions, 15120 flow. Second operand 54 states and 7257 transitions. [2022-11-02 20:25:49,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 1578 transitions, 24525 flow [2022-11-02 20:25:50,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1578 transitions, 23791 flow, removed 176 selfloop flow, removed 39 redundant places. [2022-11-02 20:25:50,435 INFO L231 Difference]: Finished difference. Result has 558 places, 1035 transitions, 15532 flow [2022-11-02 20:25:50,436 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=14614, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=809, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=15532, PETRI_PLACES=558, PETRI_TRANSITIONS=1035} [2022-11-02 20:25:50,436 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 269 predicate places. [2022-11-02 20:25:50,436 INFO L495 AbstractCegarLoop]: Abstraction has has 558 places, 1035 transitions, 15532 flow [2022-11-02 20:25:50,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 129.08695652173913) internal successors, (2969), 23 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:50,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:25:50,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:25:50,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 20:25:50,437 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:25:50,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:50,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1200282243, now seen corresponding path program 1 times [2022-11-02 20:25:50,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:50,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369940961] [2022-11-02 20:25:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:52,193 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 20:25:52,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:52,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369940961] [2022-11-02 20:25:52,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369940961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:52,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:52,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-02 20:25:52,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164062036] [2022-11-02 20:25:52,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:52,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 20:25:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 20:25:52,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:25:52,198 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 286 [2022-11-02 20:25:52,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 1035 transitions, 15532 flow. Second operand has 22 states, 22 states have (on average 127.36363636363636) internal successors, (2802), 22 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:52,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:25:52,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 286 [2022-11-02 20:25:52,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:02,014 INFO L130 PetriNetUnfolder]: 4190/12171 cut-off events. [2022-11-02 20:26:02,014 INFO L131 PetriNetUnfolder]: For 127497/127504 co-relation queries the response was YES. [2022-11-02 20:26:02,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60332 conditions, 12171 events. 4190/12171 cut-off events. For 127497/127504 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 110880 event pairs, 913 based on Foata normal form. 23/12087 useless extension candidates. Maximal degree in co-relation 60110. Up to 2209 conditions per place. [2022-11-02 20:26:02,263 INFO L137 encePairwiseOnDemand]: 246/286 looper letters, 956 selfloop transitions, 257 changer transitions 80/1407 dead transitions. [2022-11-02 20:26:02,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1407 transitions, 22312 flow [2022-11-02 20:26:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-02 20:26:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-02 20:26:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5482 transitions. [2022-11-02 20:26:02,271 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4675081016544431 [2022-11-02 20:26:02,271 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5482 transitions. [2022-11-02 20:26:02,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5482 transitions. [2022-11-02 20:26:02,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:02,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5482 transitions. [2022-11-02 20:26:02,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 133.70731707317074) internal successors, (5482), 41 states have internal predecessors, (5482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:02,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 286.0) internal successors, (12012), 42 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:02,304 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 286.0) internal successors, (12012), 42 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:02,304 INFO L175 Difference]: Start difference. First operand has 558 places, 1035 transitions, 15532 flow. Second operand 41 states and 5482 transitions. [2022-11-02 20:26:02,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 1407 transitions, 22312 flow [2022-11-02 20:26:03,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1407 transitions, 22089 flow, removed 22 selfloop flow, removed 22 redundant places. [2022-11-02 20:26:03,145 INFO L231 Difference]: Finished difference. Result has 579 places, 1057 transitions, 16434 flow [2022-11-02 20:26:03,146 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15355, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=16434, PETRI_PLACES=579, PETRI_TRANSITIONS=1057} [2022-11-02 20:26:03,147 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 290 predicate places. [2022-11-02 20:26:03,147 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 1057 transitions, 16434 flow [2022-11-02 20:26:03,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 127.36363636363636) internal successors, (2802), 22 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:03,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:03,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:03,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 20:26:03,149 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:26:03,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:03,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1818229357, now seen corresponding path program 2 times [2022-11-02 20:26:03,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:03,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569507692] [2022-11-02 20:26:03,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:03,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:05,499 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 20:26:05,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:05,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569507692] [2022-11-02 20:26:05,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569507692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:05,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:05,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-02 20:26:05,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102639844] [2022-11-02 20:26:05,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:05,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 20:26:05,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:05,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 20:26:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-11-02 20:26:05,505 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 286 [2022-11-02 20:26:05,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 1057 transitions, 16434 flow. Second operand has 23 states, 23 states have (on average 129.08695652173913) internal successors, (2969), 23 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:05,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:05,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 286 [2022-11-02 20:26:05,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:16,682 INFO L130 PetriNetUnfolder]: 4864/13997 cut-off events. [2022-11-02 20:26:16,682 INFO L131 PetriNetUnfolder]: For 170229/170236 co-relation queries the response was YES. [2022-11-02 20:26:16,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74032 conditions, 13997 events. 4864/13997 cut-off events. For 170229/170236 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 130749 event pairs, 1197 based on Foata normal form. 13/13903 useless extension candidates. Maximal degree in co-relation 73800. Up to 2091 conditions per place. [2022-11-02 20:26:16,969 INFO L137 encePairwiseOnDemand]: 249/286 looper letters, 1203 selfloop transitions, 268 changer transitions 31/1618 dead transitions. [2022-11-02 20:26:16,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 1618 transitions, 26780 flow [2022-11-02 20:26:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-02 20:26:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-02 20:26:16,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 6333 transitions. [2022-11-02 20:26:16,975 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4711352477309924 [2022-11-02 20:26:16,975 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 6333 transitions. [2022-11-02 20:26:16,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 6333 transitions. [2022-11-02 20:26:16,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:16,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 6333 transitions. [2022-11-02 20:26:16,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 134.74468085106383) internal successors, (6333), 47 states have internal predecessors, (6333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:16,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 286.0) internal successors, (13728), 48 states have internal predecessors, (13728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:16,993 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 286.0) internal successors, (13728), 48 states have internal predecessors, (13728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:16,994 INFO L175 Difference]: Start difference. First operand has 579 places, 1057 transitions, 16434 flow. Second operand 47 states and 6333 transitions. [2022-11-02 20:26:16,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 1618 transitions, 26780 flow [2022-11-02 20:26:18,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 1618 transitions, 26423 flow, removed 42 selfloop flow, removed 24 redundant places. [2022-11-02 20:26:18,307 INFO L231 Difference]: Finished difference. Result has 604 places, 1152 transitions, 19136 flow [2022-11-02 20:26:18,307 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=16145, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=818, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=19136, PETRI_PLACES=604, PETRI_TRANSITIONS=1152} [2022-11-02 20:26:18,308 INFO L287 CegarLoopForPetriNet]: 289 programPoint places, 315 predicate places. [2022-11-02 20:26:18,308 INFO L495 AbstractCegarLoop]: Abstraction has has 604 places, 1152 transitions, 19136 flow [2022-11-02 20:26:18,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 129.08695652173913) internal successors, (2969), 23 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:18,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:18,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:18,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 20:26:18,310 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-02 20:26:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash 982294047, now seen corresponding path program 3 times [2022-11-02 20:26:18,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:18,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848432690] [2022-11-02 20:26:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:18,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:20,569 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 20:26:20,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:20,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848432690] [2022-11-02 20:26:20,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848432690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:20,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:20,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-02 20:26:20,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605236791] [2022-11-02 20:26:20,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:20,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:26:20,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:20,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:26:20,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:26:20,574 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 286 [2022-11-02 20:26:20,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 1152 transitions, 19136 flow. Second operand has 24 states, 24 states have (on average 128.875) internal successors, (3093), 24 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:20,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:20,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 286 [2022-11-02 20:26:20,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:30,511 INFO L130 PetriNetUnfolder]: 4857/13952 cut-off events. [2022-11-02 20:26:30,512 INFO L131 PetriNetUnfolder]: For 176707/176709 co-relation queries the response was YES. [2022-11-02 20:26:30,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74547 conditions, 13952 events. 4857/13952 cut-off events. For 176707/176709 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 129705 event pairs, 1132 based on Foata normal form. 11/13811 useless extension candidates. Maximal degree in co-relation 74308. Up to 3463 conditions per place. [2022-11-02 20:26:30,773 INFO L137 encePairwiseOnDemand]: 260/286 looper letters, 1028 selfloop transitions, 142 changer transitions 56/1342 dead transitions. [2022-11-02 20:26:30,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 1342 transitions, 23805 flow [2022-11-02 20:26:30,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-02 20:26:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-02 20:26:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4146 transitions. [2022-11-02 20:26:30,780 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4676291450484999 [2022-11-02 20:26:30,780 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4146 transitions. [2022-11-02 20:26:30,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4146 transitions. [2022-11-02 20:26:30,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:30,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4146 transitions. [2022-11-02 20:26:30,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 133.74193548387098) internal successors, (4146), 31 states have internal predecessors, (4146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)