./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro --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 c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 --- 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-8393723 [2022-11-18 20:55:01,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:55:01,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:55:01,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:55:01,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:55:01,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:55:01,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:55:01,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:55:01,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:55:01,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:55:01,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:55:01,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:55:01,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:55:01,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:55:01,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:55:01,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:55:01,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:55:01,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:55:01,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:55:01,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:55:01,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:55:01,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:55:01,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:55:01,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:55:01,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:55:01,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:55:01,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:55:01,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:55:01,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:55:01,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:55:01,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:55:01,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:55:01,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:55:01,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:55:01,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:55:01,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:55:01,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:55:01,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:55:01,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:55:01,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:55:01,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:55:01,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:55:01,890 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:55:01,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:55:01,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:55:01,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:55:01,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:55:01,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:55:01,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:55:01,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:55:01,897 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:55:01,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:55:01,899 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:55:01,900 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:55:01,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:55:01,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:55:01,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:55:01,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:55:01,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:55:01,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:55:01,902 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:55:01,902 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:55:01,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:55:01,902 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:55:01,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:55:01,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:55:01,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:55:01,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:55:01,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:01,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:55:01,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:55:01,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:55:01,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:55:01,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:55:01,908 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:55:01,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:55:01,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:55:01,909 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_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 [2022-11-18 20:55:02,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:55:02,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:55:02,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:55:02,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:55:02,373 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:55:02,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-18 20:55:02,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/data/7c42f2433/7853586ab65d453bb730fafdc1486dac/FLAG7ae5db428 [2022-11-18 20:55:03,248 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:55:03,249 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-18 20:55:03,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/data/7c42f2433/7853586ab65d453bb730fafdc1486dac/FLAG7ae5db428 [2022-11-18 20:55:03,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/data/7c42f2433/7853586ab65d453bb730fafdc1486dac [2022-11-18 20:55:03,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:55:03,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:55:03,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:03,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:55:03,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:55:03,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:03" (1/1) ... [2022-11-18 20:55:03,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699d843e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:03, skipping insertion in model container [2022-11-18 20:55:03,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:03" (1/1) ... [2022-11-18 20:55:03,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:55:03,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:55:04,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:04,280 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:55:04,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:04,443 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:55:04,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04 WrapperNode [2022-11-18 20:55:04,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:04,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:04,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:55:04,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:55:04,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,570 INFO L138 Inliner]: procedures = 370, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 228 [2022-11-18 20:55:04,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:04,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:55:04,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:55:04,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:55:04,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,640 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:55:04,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:55:04,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:55:04,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:55:04,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (1/1) ... [2022-11-18 20:55:04,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:04,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:04,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:55:04,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:55:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:55:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:55:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:55:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:55:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:55:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:55:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:55:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:55:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:55:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:55:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:55:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:55:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:55:04,809 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:55:05,112 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:55:05,115 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:55:05,919 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:55:05,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:55:05,948 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:55:05,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:05 BoogieIcfgContainer [2022-11-18 20:55:05,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:55:05,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:55:05,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:55:05,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:55:05,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:55:03" (1/3) ... [2022-11-18 20:55:05,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685901d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:05, skipping insertion in model container [2022-11-18 20:55:05,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:04" (2/3) ... [2022-11-18 20:55:05,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685901d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:05, skipping insertion in model container [2022-11-18 20:55:05,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:05" (3/3) ... [2022-11-18 20:55:05,969 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2022-11-18 20:55:05,981 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:55:05,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:55:05,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 20:55:05,997 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:55:06,142 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:55:06,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 275 transitions, 555 flow [2022-11-18 20:55:06,438 INFO L130 PetriNetUnfolder]: 4/274 cut-off events. [2022-11-18 20:55:06,438 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:55:06,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 274 events. 4/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2022-11-18 20:55:06,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 275 transitions, 555 flow [2022-11-18 20:55:06,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 274 transitions, 551 flow [2022-11-18 20:55:06,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:55:06,512 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;@761ed873, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:55:06,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-18 20:55:06,529 INFO L130 PetriNetUnfolder]: 3/49 cut-off events. [2022-11-18 20:55:06,529 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:55:06,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:06,530 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:06,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:06,538 INFO L85 PathProgramCache]: Analyzing trace with hash 51943440, now seen corresponding path program 1 times [2022-11-18 20:55:06,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:06,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308890021] [2022-11-18 20:55:06,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:06,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:06,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:06,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308890021] [2022-11-18 20:55:06,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308890021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:06,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:06,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:55:06,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277514152] [2022-11-18 20:55:06,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:06,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:55:06,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:06,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:55:06,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:55:06,922 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 275 [2022-11-18 20:55:06,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 274 transitions, 551 flow. Second operand has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:06,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:06,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 275 [2022-11-18 20:55:06,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:07,018 INFO L130 PetriNetUnfolder]: 1/271 cut-off events. [2022-11-18 20:55:07,018 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:55:07,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 271 events. 1/271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 3/253 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2022-11-18 20:55:07,021 INFO L137 encePairwiseOnDemand]: 272/275 looper letters, 1 selfloop transitions, 0 changer transitions 1/271 dead transitions. [2022-11-18 20:55:07,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 271 transitions, 547 flow [2022-11-18 20:55:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:55:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:55:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 546 transitions. [2022-11-18 20:55:07,051 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9927272727272727 [2022-11-18 20:55:07,052 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 546 transitions. [2022-11-18 20:55:07,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 546 transitions. [2022-11-18 20:55:07,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:07,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 546 transitions. [2022-11-18 20:55:07,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:07,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 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) [2022-11-18 20:55:07,088 INFO L81 ComplementDD]: Finished complementDD. Result has 3 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) [2022-11-18 20:55:07,090 INFO L175 Difference]: Start difference. First operand has 274 places, 274 transitions, 551 flow. Second operand 2 states and 546 transitions. [2022-11-18 20:55:07,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 271 transitions, 547 flow [2022-11-18 20:55:07,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 271 transitions, 546 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:55:07,110 INFO L231 Difference]: Finished difference. Result has 274 places, 270 transitions, 542 flow [2022-11-18 20:55:07,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=542, PETRI_PLACES=274, PETRI_TRANSITIONS=270} [2022-11-18 20:55:07,121 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 0 predicate places. [2022-11-18 20:55:07,121 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 270 transitions, 542 flow [2022-11-18 20:55:07,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:07,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:07,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:07,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:55:07,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:07,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1013557457, now seen corresponding path program 1 times [2022-11-18 20:55:07,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:07,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761960365] [2022-11-18 20:55:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:07,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:07,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:07,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761960365] [2022-11-18 20:55:07,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761960365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:07,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:07,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:55:07,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830563674] [2022-11-18 20:55:07,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:07,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:07,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:07,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:07,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:07,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 275 [2022-11-18 20:55:07,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 270 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:07,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:07,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 275 [2022-11-18 20:55:07,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:07,462 INFO L130 PetriNetUnfolder]: 1/274 cut-off events. [2022-11-18 20:55:07,462 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:55:07,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 274 events. 1/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 288. Up to 9 conditions per place. [2022-11-18 20:55:07,464 INFO L137 encePairwiseOnDemand]: 272/275 looper letters, 10 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2022-11-18 20:55:07,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 274 transitions, 574 flow [2022-11-18 20:55:07,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:07,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:55:07,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2022-11-18 20:55:07,469 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9757575757575757 [2022-11-18 20:55:07,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2022-11-18 20:55:07,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2022-11-18 20:55:07,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:07,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2022-11-18 20:55:07,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-18 20:55:07,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:07,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:07,479 INFO L175 Difference]: Start difference. First operand has 274 places, 270 transitions, 542 flow. Second operand 3 states and 805 transitions. [2022-11-18 20:55:07,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 274 transitions, 574 flow [2022-11-18 20:55:07,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 274 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:55:07,491 INFO L231 Difference]: Finished difference. Result has 276 places, 271 transitions, 554 flow [2022-11-18 20:55:07,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=276, PETRI_TRANSITIONS=271} [2022-11-18 20:55:07,493 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 2 predicate places. [2022-11-18 20:55:07,494 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 271 transitions, 554 flow [2022-11-18 20:55:07,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:07,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:07,495 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:07,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:55:07,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:07,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2113263664, now seen corresponding path program 1 times [2022-11-18 20:55:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:07,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408334432] [2022-11-18 20:55:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:07,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408334432] [2022-11-18 20:55:07,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408334432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:07,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346714094] [2022-11-18 20:55:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:07,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:07,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:07,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:07,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:55:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:08,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:08,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:08,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:08,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346714094] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:08,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:55:08,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:55:08,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384144004] [2022-11-18 20:55:08,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:08,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:55:08,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:08,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:55:08,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:55:08,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 275 [2022-11-18 20:55:08,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 271 transitions, 554 flow. Second operand has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:08,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:08,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 275 [2022-11-18 20:55:08,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:08,475 INFO L130 PetriNetUnfolder]: 1/281 cut-off events. [2022-11-18 20:55:08,476 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:55:08,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 281 events. 1/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 2/264 useless extension candidates. Maximal degree in co-relation 309. Up to 6 conditions per place. [2022-11-18 20:55:08,478 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 11 selfloop transitions, 9 changer transitions 0/281 dead transitions. [2022-11-18 20:55:08,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 281 transitions, 616 flow [2022-11-18 20:55:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:55:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:55:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2389 transitions. [2022-11-18 20:55:08,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9652525252525253 [2022-11-18 20:55:08,486 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2389 transitions. [2022-11-18 20:55:08,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2389 transitions. [2022-11-18 20:55:08,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:08,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2389 transitions. [2022-11-18 20:55:08,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 265.44444444444446) internal successors, (2389), 9 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:08,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:08,505 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:08,505 INFO L175 Difference]: Start difference. First operand has 276 places, 271 transitions, 554 flow. Second operand 9 states and 2389 transitions. [2022-11-18 20:55:08,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 281 transitions, 616 flow [2022-11-18 20:55:08,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 281 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:55:08,514 INFO L231 Difference]: Finished difference. Result has 286 places, 277 transitions, 602 flow [2022-11-18 20:55:08,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=602, PETRI_PLACES=286, PETRI_TRANSITIONS=277} [2022-11-18 20:55:08,519 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 12 predicate places. [2022-11-18 20:55:08,519 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 277 transitions, 602 flow [2022-11-18 20:55:08,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:08,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:08,523 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:08,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:55:08,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:08,731 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:08,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:08,731 INFO L85 PathProgramCache]: Analyzing trace with hash 328547440, now seen corresponding path program 2 times [2022-11-18 20:55:08,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:08,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765602249] [2022-11-18 20:55:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:08,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:09,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:09,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765602249] [2022-11-18 20:55:09,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765602249] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:09,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293676203] [2022-11-18 20:55:09,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:55:09,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:09,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:09,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:09,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:55:09,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:55:09,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:55:09,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:55:09,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:09,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:55:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:09,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 20:55:09,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:09,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:09,541 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:09,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 20:55:09,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:09,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:09,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:09,630 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:09,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 20:55:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:55:09,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:09,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293676203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:09,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:55:09,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-18 20:55:09,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358794166] [2022-11-18 20:55:09,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:09,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:55:09,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:09,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:55:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:55:09,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 275 [2022-11-18 20:55:09,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 277 transitions, 602 flow. Second operand has 8 states, 8 states have (on average 146.375) internal successors, (1171), 8 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:09,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:09,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 275 [2022-11-18 20:55:09,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:11,123 INFO L130 PetriNetUnfolder]: 649/2109 cut-off events. [2022-11-18 20:55:11,123 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:55:11,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3564 conditions, 2109 events. 649/2109 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11429 event pairs, 648 based on Foata normal form. 0/1858 useless extension candidates. Maximal degree in co-relation 3557. Up to 1405 conditions per place. [2022-11-18 20:55:11,150 INFO L137 encePairwiseOnDemand]: 256/275 looper letters, 108 selfloop transitions, 17 changer transitions 0/275 dead transitions. [2022-11-18 20:55:11,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 275 transitions, 848 flow [2022-11-18 20:55:11,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:55:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:55:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1432 transitions. [2022-11-18 20:55:11,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5785858585858585 [2022-11-18 20:55:11,160 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1432 transitions. [2022-11-18 20:55:11,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1432 transitions. [2022-11-18 20:55:11,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:11,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1432 transitions. [2022-11-18 20:55:11,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.11111111111111) internal successors, (1432), 9 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:11,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:11,174 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:11,175 INFO L175 Difference]: Start difference. First operand has 286 places, 277 transitions, 602 flow. Second operand 9 states and 1432 transitions. [2022-11-18 20:55:11,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 275 transitions, 848 flow [2022-11-18 20:55:11,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 275 transitions, 842 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:55:11,184 INFO L231 Difference]: Finished difference. Result has 291 places, 275 transitions, 626 flow [2022-11-18 20:55:11,185 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=626, PETRI_PLACES=291, PETRI_TRANSITIONS=275} [2022-11-18 20:55:11,186 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 17 predicate places. [2022-11-18 20:55:11,186 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 275 transitions, 626 flow [2022-11-18 20:55:11,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.375) internal successors, (1171), 8 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:11,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:11,188 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:11,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:11,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:11,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1442904334, now seen corresponding path program 1 times [2022-11-18 20:55:11,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:11,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173735510] [2022-11-18 20:55:11,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:11,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:11,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:11,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173735510] [2022-11-18 20:55:11,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173735510] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:11,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490404562] [2022-11-18 20:55:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:11,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:11,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:11,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:11,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:55:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:11,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:55:11,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:12,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:12,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490404562] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:12,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:55:12,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:55:12,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862584940] [2022-11-18 20:55:12,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:12,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:55:12,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:12,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:55:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:55:12,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 275 [2022-11-18 20:55:12,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 275 transitions, 626 flow. Second operand has 18 states, 18 states have (on average 265.22222222222223) internal successors, (4774), 18 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:12,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:12,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 275 [2022-11-18 20:55:12,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:12,605 INFO L130 PetriNetUnfolder]: 1/299 cut-off events. [2022-11-18 20:55:12,605 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-18 20:55:12,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 299 events. 1/299 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 4/286 useless extension candidates. Maximal degree in co-relation 404. Up to 11 conditions per place. [2022-11-18 20:55:12,607 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 19 selfloop transitions, 21 changer transitions 0/299 dead transitions. [2022-11-18 20:55:12,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 299 transitions, 806 flow [2022-11-18 20:55:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:55:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:55:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5567 transitions. [2022-11-18 20:55:12,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9639826839826839 [2022-11-18 20:55:12,622 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5567 transitions. [2022-11-18 20:55:12,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5567 transitions. [2022-11-18 20:55:12,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:12,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5567 transitions. [2022-11-18 20:55:12,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 265.0952380952381) internal successors, (5567), 21 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:12,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 275.0) internal successors, (6050), 22 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:12,662 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 275.0) internal successors, (6050), 22 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:12,663 INFO L175 Difference]: Start difference. First operand has 291 places, 275 transitions, 626 flow. Second operand 21 states and 5567 transitions. [2022-11-18 20:55:12,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 299 transitions, 806 flow [2022-11-18 20:55:12,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 299 transitions, 772 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 20:55:12,673 INFO L231 Difference]: Finished difference. Result has 308 places, 288 transitions, 722 flow [2022-11-18 20:55:12,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=722, PETRI_PLACES=308, PETRI_TRANSITIONS=288} [2022-11-18 20:55:12,675 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 34 predicate places. [2022-11-18 20:55:12,675 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 288 transitions, 722 flow [2022-11-18 20:55:12,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 265.22222222222223) internal successors, (4774), 18 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:12,678 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:12,679 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:12,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:12,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:12,886 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:12,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:12,887 INFO L85 PathProgramCache]: Analyzing trace with hash 465442866, now seen corresponding path program 2 times [2022-11-18 20:55:12,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:12,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857121799] [2022-11-18 20:55:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:12,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:13,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:13,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857121799] [2022-11-18 20:55:13,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857121799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:13,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105340788] [2022-11-18 20:55:13,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:55:13,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:13,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:13,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:13,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:55:13,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:55:13,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:55:13,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:55:13,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:13,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:55:13,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:55:13,821 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:13,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-18 20:55:13,881 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:13,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-18 20:55:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 20:55:13,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:13,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105340788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:13,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:55:13,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 20:55:13,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287801547] [2022-11-18 20:55:13,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:13,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:13,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:13,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:13,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:55:13,943 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 275 [2022-11-18 20:55:13,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 288 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:13,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:13,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 275 [2022-11-18 20:55:13,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:15,127 INFO L130 PetriNetUnfolder]: 649/2127 cut-off events. [2022-11-18 20:55:15,127 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-18 20:55:15,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3639 conditions, 2127 events. 649/2127 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11428 event pairs, 648 based on Foata normal form. 0/1878 useless extension candidates. Maximal degree in co-relation 3627. Up to 1406 conditions per place. [2022-11-18 20:55:15,139 INFO L137 encePairwiseOnDemand]: 263/275 looper letters, 109 selfloop transitions, 10 changer transitions 0/286 dead transitions. [2022-11-18 20:55:15,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 286 transitions, 956 flow [2022-11-18 20:55:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1015 transitions. [2022-11-18 20:55:15,143 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6151515151515151 [2022-11-18 20:55:15,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1015 transitions. [2022-11-18 20:55:15,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1015 transitions. [2022-11-18 20:55:15,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:15,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1015 transitions. [2022-11-18 20:55:15,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:15,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:15,152 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:15,152 INFO L175 Difference]: Start difference. First operand has 308 places, 288 transitions, 722 flow. Second operand 6 states and 1015 transitions. [2022-11-18 20:55:15,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 286 transitions, 956 flow [2022-11-18 20:55:15,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 286 transitions, 932 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:55:15,166 INFO L231 Difference]: Finished difference. Result has 305 places, 286 transitions, 714 flow [2022-11-18 20:55:15,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=305, PETRI_TRANSITIONS=286} [2022-11-18 20:55:15,170 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 31 predicate places. [2022-11-18 20:55:15,171 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 286 transitions, 714 flow [2022-11-18 20:55:15,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:15,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:15,191 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:15,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:15,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:15,399 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:15,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1246473534, now seen corresponding path program 1 times [2022-11-18 20:55:15,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:15,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656530614] [2022-11-18 20:55:15,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:15,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:15,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:15,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656530614] [2022-11-18 20:55:15,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656530614] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:15,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896023199] [2022-11-18 20:55:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:15,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:15,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:15,869 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:15,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:55:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:16,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:55:16,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:16,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:16,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896023199] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:16,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:55:16,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:55:16,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89678921] [2022-11-18 20:55:16,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:16,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:55:16,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:55:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:55:16,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 275 [2022-11-18 20:55:16,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 286 transitions, 714 flow. Second operand has 23 states, 23 states have (on average 265.39130434782606) internal successors, (6104), 23 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:16,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:16,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 275 [2022-11-18 20:55:16,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:17,145 INFO L130 PetriNetUnfolder]: 1/312 cut-off events. [2022-11-18 20:55:17,145 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-18 20:55:17,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 312 events. 1/312 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 3/300 useless extension candidates. Maximal degree in co-relation 483. Up to 16 conditions per place. [2022-11-18 20:55:17,147 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 25 selfloop transitions, 30 changer transitions 0/312 dead transitions. [2022-11-18 20:55:17,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 312 transitions, 964 flow [2022-11-18 20:55:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:55:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:55:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7948 transitions. [2022-11-18 20:55:17,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9633939393939394 [2022-11-18 20:55:17,167 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7948 transitions. [2022-11-18 20:55:17,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7948 transitions. [2022-11-18 20:55:17,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:17,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7948 transitions. [2022-11-18 20:55:17,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 264.93333333333334) internal successors, (7948), 30 states have internal predecessors, (7948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:17,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 275.0) internal successors, (8525), 31 states have internal predecessors, (8525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:17,214 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 275.0) internal successors, (8525), 31 states have internal predecessors, (8525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:17,215 INFO L175 Difference]: Start difference. First operand has 305 places, 286 transitions, 714 flow. Second operand 30 states and 7948 transitions. [2022-11-18 20:55:17,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 312 transitions, 964 flow [2022-11-18 20:55:17,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 312 transitions, 944 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:55:17,225 INFO L231 Difference]: Finished difference. Result has 333 places, 296 transitions, 846 flow [2022-11-18 20:55:17,226 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=846, PETRI_PLACES=333, PETRI_TRANSITIONS=296} [2022-11-18 20:55:17,266 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 59 predicate places. [2022-11-18 20:55:17,267 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 296 transitions, 846 flow [2022-11-18 20:55:17,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 265.39130434782606) internal successors, (6104), 23 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:17,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:17,269 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:17,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 20:55:17,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44c1d0c-c16a-4973-ac0c-fcda404cee2e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:17,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:17,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1267463069, now seen corresponding path program 2 times [2022-11-18 20:55:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:17,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883063533] [2022-11-18 20:55:17,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:17,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:18,356 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:18,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:18,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883063533] [2022-11-18 20:55:18,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883063533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:18,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:18,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:18,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827084054] [2022-11-18 20:55:18,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:18,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:18,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:18,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:18,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:18,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 275 [2022-11-18 20:55:18,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 296 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:18,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:18,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 275 [2022-11-18 20:55:18,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:19,468 INFO L130 PetriNetUnfolder]: 778/2460 cut-off events. [2022-11-18 20:55:19,468 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-18 20:55:19,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4296 conditions, 2460 events. 778/2460 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13635 event pairs, 777 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 4280. Up to 1667 conditions per place. [2022-11-18 20:55:19,492 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 112 selfloop transitions, 5 changer transitions 0/295 dead transitions. [2022-11-18 20:55:19,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 295 transitions, 1078 flow [2022-11-18 20:55:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:19,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1018 transitions. [2022-11-18 20:55:19,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.616969696969697 [2022-11-18 20:55:19,497 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1018 transitions. [2022-11-18 20:55:19,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1018 transitions. [2022-11-18 20:55:19,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:19,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1018 transitions. [2022-11-18 20:55:19,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:19,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:19,506 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:19,507 INFO L175 Difference]: Start difference. First operand has 333 places, 296 transitions, 846 flow. Second operand 6 states and 1018 transitions. [2022-11-18 20:55:19,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 295 transitions, 1078 flow [2022-11-18 20:55:19,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 295 transitions, 1032 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:55:19,518 INFO L231 Difference]: Finished difference. Result has 319 places, 295 transitions, 808 flow [2022-11-18 20:55:19,519 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=808, PETRI_PLACES=319, PETRI_TRANSITIONS=295} [2022-11-18 20:55:19,524 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2022-11-18 20:55:19,525 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 295 transitions, 808 flow [2022-11-18 20:55:19,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:19,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:19,526 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:19,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:55:19,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:19,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:19,527 INFO L85 PathProgramCache]: Analyzing trace with hash 803274395, now seen corresponding path program 1 times [2022-11-18 20:55:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:19,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711913303] [2022-11-18 20:55:19,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:19,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:20,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:20,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711913303] [2022-11-18 20:55:20,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711913303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:20,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:20,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:20,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482972021] [2022-11-18 20:55:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:20,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:20,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:20,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:20,644 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 275 [2022-11-18 20:55:20,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 295 transitions, 808 flow. Second operand has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:20,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:20,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 275 [2022-11-18 20:55:20,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:23,157 INFO L130 PetriNetUnfolder]: 1388/4185 cut-off events. [2022-11-18 20:55:23,157 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-18 20:55:23,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7276 conditions, 4185 events. 1388/4185 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28781 event pairs, 95 based on Foata normal form. 0/3734 useless extension candidates. Maximal degree in co-relation 7259. Up to 1834 conditions per place. [2022-11-18 20:55:23,196 INFO L137 encePairwiseOnDemand]: 247/275 looper letters, 205 selfloop transitions, 74 changer transitions 0/459 dead transitions. [2022-11-18 20:55:23,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 459 transitions, 1694 flow [2022-11-18 20:55:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:23,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1193 transitions. [2022-11-18 20:55:23,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.723030303030303 [2022-11-18 20:55:23,202 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1193 transitions. [2022-11-18 20:55:23,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1193 transitions. [2022-11-18 20:55:23,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:23,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1193 transitions. [2022-11-18 20:55:23,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.83333333333334) internal successors, (1193), 6 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:23,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:23,212 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:23,212 INFO L175 Difference]: Start difference. First operand has 319 places, 295 transitions, 808 flow. Second operand 6 states and 1193 transitions. [2022-11-18 20:55:23,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 459 transitions, 1694 flow [2022-11-18 20:55:23,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 459 transitions, 1684 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:55:23,226 INFO L231 Difference]: Finished difference. Result has 323 places, 362 transitions, 1270 flow [2022-11-18 20:55:23,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1270, PETRI_PLACES=323, PETRI_TRANSITIONS=362} [2022-11-18 20:55:23,231 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 49 predicate places. [2022-11-18 20:55:23,232 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 362 transitions, 1270 flow [2022-11-18 20:55:23,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:23,233 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:23,233 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:23,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:55:23,234 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:23,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:23,235 INFO L85 PathProgramCache]: Analyzing trace with hash -416009505, now seen corresponding path program 1 times [2022-11-18 20:55:23,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:23,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707800287] [2022-11-18 20:55:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:23,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:24,108 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:24,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:24,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707800287] [2022-11-18 20:55:24,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707800287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:24,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:24,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:24,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345006744] [2022-11-18 20:55:24,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:24,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:24,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:24,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:24,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 275 [2022-11-18 20:55:24,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 362 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:24,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:24,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 275 [2022-11-18 20:55:24,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:25,644 INFO L130 PetriNetUnfolder]: 1207/3988 cut-off events. [2022-11-18 20:55:25,644 INFO L131 PetriNetUnfolder]: For 1352/1456 co-relation queries the response was YES. [2022-11-18 20:55:25,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8095 conditions, 3988 events. 1207/3988 cut-off events. For 1352/1456 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26913 event pairs, 792 based on Foata normal form. 0/3586 useless extension candidates. Maximal degree in co-relation 8074. Up to 2566 conditions per place. [2022-11-18 20:55:25,691 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 169 selfloop transitions, 5 changer transitions 0/361 dead transitions. [2022-11-18 20:55:25,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 361 transitions, 1616 flow [2022-11-18 20:55:25,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:25,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1061 transitions. [2022-11-18 20:55:25,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6430303030303031 [2022-11-18 20:55:25,696 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1061 transitions. [2022-11-18 20:55:25,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1061 transitions. [2022-11-18 20:55:25,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:25,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1061 transitions. [2022-11-18 20:55:25,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.83333333333334) internal successors, (1061), 6 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:25,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:25,706 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:25,707 INFO L175 Difference]: Start difference. First operand has 323 places, 362 transitions, 1270 flow. Second operand 6 states and 1061 transitions. [2022-11-18 20:55:25,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 361 transitions, 1616 flow [2022-11-18 20:55:25,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 361 transitions, 1616 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:55:25,722 INFO L231 Difference]: Finished difference. Result has 327 places, 361 transitions, 1278 flow [2022-11-18 20:55:25,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=327, PETRI_TRANSITIONS=361} [2022-11-18 20:55:25,725 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 53 predicate places. [2022-11-18 20:55:25,726 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 361 transitions, 1278 flow [2022-11-18 20:55:25,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:25,726 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:25,727 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:25,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:55:25,728 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash 544626606, now seen corresponding path program 1 times [2022-11-18 20:55:25,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:25,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754453769] [2022-11-18 20:55:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:25,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:26,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:26,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754453769] [2022-11-18 20:55:26,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754453769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:26,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:26,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:26,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222344431] [2022-11-18 20:55:26,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:26,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:26,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:26,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:26,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:26,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 275 [2022-11-18 20:55:26,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 361 transitions, 1278 flow. Second operand has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:26,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:26,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 275 [2022-11-18 20:55:26,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:28,422 INFO L130 PetriNetUnfolder]: 1207/3987 cut-off events. [2022-11-18 20:55:28,422 INFO L131 PetriNetUnfolder]: For 1352/1456 co-relation queries the response was YES. [2022-11-18 20:55:28,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8101 conditions, 3987 events. 1207/3987 cut-off events. For 1352/1456 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26932 event pairs, 792 based on Foata normal form. 0/3586 useless extension candidates. Maximal degree in co-relation 8079. Up to 2568 conditions per place. [2022-11-18 20:55:28,480 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 170 selfloop transitions, 5 changer transitions 0/360 dead transitions. [2022-11-18 20:55:28,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 360 transitions, 1626 flow [2022-11-18 20:55:28,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:28,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1050 transitions. [2022-11-18 20:55:28,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2022-11-18 20:55:28,491 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1050 transitions. [2022-11-18 20:55:28,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1050 transitions. [2022-11-18 20:55:28,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:28,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1050 transitions. [2022-11-18 20:55:28,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:28,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:28,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:28,531 INFO L175 Difference]: Start difference. First operand has 327 places, 361 transitions, 1278 flow. Second operand 6 states and 1050 transitions. [2022-11-18 20:55:28,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 360 transitions, 1626 flow [2022-11-18 20:55:28,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 360 transitions, 1616 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:55:28,574 INFO L231 Difference]: Finished difference. Result has 326 places, 360 transitions, 1276 flow [2022-11-18 20:55:28,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=326, PETRI_TRANSITIONS=360} [2022-11-18 20:55:28,576 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 52 predicate places. [2022-11-18 20:55:28,576 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 360 transitions, 1276 flow [2022-11-18 20:55:28,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:28,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:28,578 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:28,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:55:28,578 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:28,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1245162512, now seen corresponding path program 1 times [2022-11-18 20:55:28,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:28,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193299101] [2022-11-18 20:55:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:28,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:29,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:29,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193299101] [2022-11-18 20:55:29,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193299101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:29,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:29,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:29,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559192847] [2022-11-18 20:55:29,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:29,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:29,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:29,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 275 [2022-11-18 20:55:29,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 360 transitions, 1276 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:29,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:29,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 275 [2022-11-18 20:55:29,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:31,063 INFO L130 PetriNetUnfolder]: 1207/3986 cut-off events. [2022-11-18 20:55:31,063 INFO L131 PetriNetUnfolder]: For 1355/1459 co-relation queries the response was YES. [2022-11-18 20:55:31,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8099 conditions, 3986 events. 1207/3986 cut-off events. For 1355/1459 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26910 event pairs, 792 based on Foata normal form. 0/3586 useless extension candidates. Maximal degree in co-relation 8077. Up to 2567 conditions per place. [2022-11-18 20:55:31,259 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 169 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2022-11-18 20:55:31,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 359 transitions, 1622 flow [2022-11-18 20:55:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1049 transitions. [2022-11-18 20:55:31,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6357575757575757 [2022-11-18 20:55:31,263 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1049 transitions. [2022-11-18 20:55:31,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1049 transitions. [2022-11-18 20:55:31,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:31,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1049 transitions. [2022-11-18 20:55:31,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.83333333333334) internal successors, (1049), 6 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:31,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:31,271 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:31,271 INFO L175 Difference]: Start difference. First operand has 326 places, 360 transitions, 1276 flow. Second operand 6 states and 1049 transitions. [2022-11-18 20:55:31,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 359 transitions, 1622 flow [2022-11-18 20:55:31,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 359 transitions, 1612 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:55:31,286 INFO L231 Difference]: Finished difference. Result has 325 places, 359 transitions, 1274 flow [2022-11-18 20:55:31,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1264, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1274, PETRI_PLACES=325, PETRI_TRANSITIONS=359} [2022-11-18 20:55:31,288 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 51 predicate places. [2022-11-18 20:55:31,289 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 359 transitions, 1274 flow [2022-11-18 20:55:31,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:31,290 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:31,290 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:31,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:55:31,291 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:31,292 INFO L85 PathProgramCache]: Analyzing trace with hash 597428371, now seen corresponding path program 1 times [2022-11-18 20:55:31,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:31,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683596908] [2022-11-18 20:55:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:31,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:32,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:32,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683596908] [2022-11-18 20:55:32,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683596908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:32,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:32,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:32,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847175265] [2022-11-18 20:55:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:32,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:32,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:32,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 275 [2022-11-18 20:55:32,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 359 transitions, 1274 flow. Second operand has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:32,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:32,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 275 [2022-11-18 20:55:32,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:34,887 INFO L130 PetriNetUnfolder]: 1524/4612 cut-off events. [2022-11-18 20:55:34,887 INFO L131 PetriNetUnfolder]: For 1496/1616 co-relation queries the response was YES. [2022-11-18 20:55:34,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9516 conditions, 4612 events. 1524/4612 cut-off events. For 1496/1616 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31586 event pairs, 624 based on Foata normal form. 16/4207 useless extension candidates. Maximal degree in co-relation 9494. Up to 2609 conditions per place. [2022-11-18 20:55:34,937 INFO L137 encePairwiseOnDemand]: 252/275 looper letters, 251 selfloop transitions, 130 changer transitions 0/568 dead transitions. [2022-11-18 20:55:34,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 568 transitions, 2830 flow [2022-11-18 20:55:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1208 transitions. [2022-11-18 20:55:34,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7321212121212122 [2022-11-18 20:55:34,944 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1208 transitions. [2022-11-18 20:55:34,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1208 transitions. [2022-11-18 20:55:34,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:34,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1208 transitions. [2022-11-18 20:55:34,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.33333333333334) internal successors, (1208), 6 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:34,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:34,955 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:34,955 INFO L175 Difference]: Start difference. First operand has 325 places, 359 transitions, 1274 flow. Second operand 6 states and 1208 transitions. [2022-11-18 20:55:34,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 568 transitions, 2830 flow [2022-11-18 20:55:34,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 568 transitions, 2820 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:55:34,979 INFO L231 Difference]: Finished difference. Result has 330 places, 488 transitions, 2492 flow [2022-11-18 20:55:34,981 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1264, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2492, PETRI_PLACES=330, PETRI_TRANSITIONS=488} [2022-11-18 20:55:34,983 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 56 predicate places. [2022-11-18 20:55:34,983 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 488 transitions, 2492 flow [2022-11-18 20:55:34,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:34,984 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:34,984 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:34,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:55:34,985 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:34,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:34,986 INFO L85 PathProgramCache]: Analyzing trace with hash 430727879, now seen corresponding path program 1 times [2022-11-18 20:55:34,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:34,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855600137] [2022-11-18 20:55:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:35,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:35,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855600137] [2022-11-18 20:55:35,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855600137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:35,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:35,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:35,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582011551] [2022-11-18 20:55:36,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:36,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:36,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:36,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:36,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:36,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 275 [2022-11-18 20:55:36,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 488 transitions, 2492 flow. Second operand has 6 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:36,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:36,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 275 [2022-11-18 20:55:36,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:38,529 INFO L130 PetriNetUnfolder]: 1637/5413 cut-off events. [2022-11-18 20:55:38,529 INFO L131 PetriNetUnfolder]: For 3919/4204 co-relation queries the response was YES. [2022-11-18 20:55:38,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12541 conditions, 5413 events. 1637/5413 cut-off events. For 3919/4204 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40641 event pairs, 508 based on Foata normal form. 8/5049 useless extension candidates. Maximal degree in co-relation 12515. Up to 2869 conditions per place. [2022-11-18 20:55:38,584 INFO L137 encePairwiseOnDemand]: 253/275 looper letters, 375 selfloop transitions, 129 changer transitions 5/696 dead transitions. [2022-11-18 20:55:38,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 696 transitions, 4548 flow [2022-11-18 20:55:38,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1207 transitions. [2022-11-18 20:55:38,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7315151515151516 [2022-11-18 20:55:38,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1207 transitions. [2022-11-18 20:55:38,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1207 transitions. [2022-11-18 20:55:38,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:38,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1207 transitions. [2022-11-18 20:55:38,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:38,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:38,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:38,599 INFO L175 Difference]: Start difference. First operand has 330 places, 488 transitions, 2492 flow. Second operand 6 states and 1207 transitions. [2022-11-18 20:55:38,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 696 transitions, 4548 flow [2022-11-18 20:55:38,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 696 transitions, 4548 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:55:38,630 INFO L231 Difference]: Finished difference. Result has 340 places, 615 transitions, 3958 flow [2022-11-18 20:55:38,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=2492, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3958, PETRI_PLACES=340, PETRI_TRANSITIONS=615} [2022-11-18 20:55:38,632 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 66 predicate places. [2022-11-18 20:55:38,632 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 615 transitions, 3958 flow [2022-11-18 20:55:38,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:38,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:38,634 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:38,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:55:38,634 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:38,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:38,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1737300221, now seen corresponding path program 1 times [2022-11-18 20:55:38,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:38,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735394700] [2022-11-18 20:55:38,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:38,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:39,552 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:39,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:39,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735394700] [2022-11-18 20:55:39,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735394700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:39,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:39,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:39,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837611247] [2022-11-18 20:55:39,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:39,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:39,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:39,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:39,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:39,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 275 [2022-11-18 20:55:39,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 615 transitions, 3958 flow. Second operand has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:39,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:39,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 275 [2022-11-18 20:55:39,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:41,414 INFO L130 PetriNetUnfolder]: 1747/5571 cut-off events. [2022-11-18 20:55:41,414 INFO L131 PetriNetUnfolder]: For 5721/5749 co-relation queries the response was YES. [2022-11-18 20:55:41,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14908 conditions, 5571 events. 1747/5571 cut-off events. For 5721/5749 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 40932 event pairs, 657 based on Foata normal form. 0/5266 useless extension candidates. Maximal degree in co-relation 14877. Up to 3519 conditions per place. [2022-11-18 20:55:41,501 INFO L137 encePairwiseOnDemand]: 256/275 looper letters, 445 selfloop transitions, 84 changer transitions 0/713 dead transitions. [2022-11-18 20:55:41,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 713 transitions, 5530 flow [2022-11-18 20:55:41,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1121 transitions. [2022-11-18 20:55:41,506 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6793939393939394 [2022-11-18 20:55:41,506 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1121 transitions. [2022-11-18 20:55:41,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1121 transitions. [2022-11-18 20:55:41,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:41,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1121 transitions. [2022-11-18 20:55:41,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.83333333333334) internal successors, (1121), 6 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:41,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:41,518 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:41,518 INFO L175 Difference]: Start difference. First operand has 340 places, 615 transitions, 3958 flow. Second operand 6 states and 1121 transitions. [2022-11-18 20:55:41,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 713 transitions, 5530 flow [2022-11-18 20:55:41,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 713 transitions, 5276 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-18 20:55:41,571 INFO L231 Difference]: Finished difference. Result has 349 places, 686 transitions, 4494 flow [2022-11-18 20:55:41,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=3710, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4494, PETRI_PLACES=349, PETRI_TRANSITIONS=686} [2022-11-18 20:55:41,573 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 75 predicate places. [2022-11-18 20:55:41,573 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 686 transitions, 4494 flow [2022-11-18 20:55:41,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:41,574 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:41,574 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:41,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:55:41,575 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:41,576 INFO L85 PathProgramCache]: Analyzing trace with hash 871846216, now seen corresponding path program 1 times [2022-11-18 20:55:41,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:41,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033778190] [2022-11-18 20:55:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:41,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:45,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:45,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033778190] [2022-11-18 20:55:45,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033778190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:45,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:45,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 20:55:45,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926764080] [2022-11-18 20:55:45,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:45,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:55:45,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:45,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:55:45,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:55:45,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 275 [2022-11-18 20:55:45,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 686 transitions, 4494 flow. Second operand has 21 states, 21 states have (on average 115.47619047619048) internal successors, (2425), 21 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:45,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:45,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 275 [2022-11-18 20:55:45,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:54,895 INFO L130 PetriNetUnfolder]: 2645/7291 cut-off events. [2022-11-18 20:55:54,895 INFO L131 PetriNetUnfolder]: For 9035/9048 co-relation queries the response was YES. [2022-11-18 20:55:54,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21964 conditions, 7291 events. 2645/7291 cut-off events. For 9035/9048 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 54518 event pairs, 408 based on Foata normal form. 44/7012 useless extension candidates. Maximal degree in co-relation 21928. Up to 2908 conditions per place. [2022-11-18 20:55:54,976 INFO L137 encePairwiseOnDemand]: 236/275 looper letters, 783 selfloop transitions, 208 changer transitions 8/1139 dead transitions. [2022-11-18 20:55:54,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 1139 transitions, 9012 flow [2022-11-18 20:55:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-18 20:55:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-18 20:55:54,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5199 transitions. [2022-11-18 20:55:54,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4501298701298701 [2022-11-18 20:55:54,987 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5199 transitions. [2022-11-18 20:55:54,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5199 transitions. [2022-11-18 20:55:54,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:54,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5199 transitions. [2022-11-18 20:55:54,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 123.78571428571429) internal successors, (5199), 42 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:55,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:55,018 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:55,018 INFO L175 Difference]: Start difference. First operand has 349 places, 686 transitions, 4494 flow. Second operand 42 states and 5199 transitions. [2022-11-18 20:55:55,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 1139 transitions, 9012 flow [2022-11-18 20:55:55,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1139 transitions, 8940 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-18 20:55:55,115 INFO L231 Difference]: Finished difference. Result has 399 places, 759 transitions, 5654 flow [2022-11-18 20:55:55,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=4440, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=5654, PETRI_PLACES=399, PETRI_TRANSITIONS=759} [2022-11-18 20:55:55,116 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 125 predicate places. [2022-11-18 20:55:55,117 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 759 transitions, 5654 flow [2022-11-18 20:55:55,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 115.47619047619048) internal successors, (2425), 21 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:55,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:55,118 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:55,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:55:55,119 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:55,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:55,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1165154200, now seen corresponding path program 2 times [2022-11-18 20:55:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:55,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950130757] [2022-11-18 20:55:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:55,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:55:58,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:58,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950130757] [2022-11-18 20:55:58,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950130757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:58,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:58,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-18 20:55:58,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274823361] [2022-11-18 20:55:58,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:58,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:55:58,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:58,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:55:58,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:55:58,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 275 [2022-11-18 20:55:58,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 759 transitions, 5654 flow. Second operand has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:58,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:58,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 275 [2022-11-18 20:55:58,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:06,541 INFO L130 PetriNetUnfolder]: 3659/10570 cut-off events. [2022-11-18 20:56:06,541 INFO L131 PetriNetUnfolder]: For 18585/18718 co-relation queries the response was YES. [2022-11-18 20:56:06,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33373 conditions, 10570 events. 3659/10570 cut-off events. For 18585/18718 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 90905 event pairs, 909 based on Foata normal form. 131/10239 useless extension candidates. Maximal degree in co-relation 33327. Up to 3184 conditions per place. [2022-11-18 20:56:06,693 INFO L137 encePairwiseOnDemand]: 236/275 looper letters, 989 selfloop transitions, 315 changer transitions 8/1464 dead transitions. [2022-11-18 20:56:06,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 1464 transitions, 12845 flow [2022-11-18 20:56:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 20:56:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-18 20:56:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3464 transitions. [2022-11-18 20:56:06,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5476679841897233 [2022-11-18 20:56:06,701 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3464 transitions. [2022-11-18 20:56:06,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3464 transitions. [2022-11-18 20:56:06,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:06,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3464 transitions. [2022-11-18 20:56:06,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.6086956521739) internal successors, (3464), 23 states have internal predecessors, (3464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:06,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:06,722 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:06,722 INFO L175 Difference]: Start difference. First operand has 399 places, 759 transitions, 5654 flow. Second operand 23 states and 3464 transitions. [2022-11-18 20:56:06,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 1464 transitions, 12845 flow [2022-11-18 20:56:06,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1464 transitions, 12735 flow, removed 5 selfloop flow, removed 20 redundant places. [2022-11-18 20:56:06,941 INFO L231 Difference]: Finished difference. Result has 414 places, 893 transitions, 8281 flow [2022-11-18 20:56:06,942 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=5580, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8281, PETRI_PLACES=414, PETRI_TRANSITIONS=893} [2022-11-18 20:56:06,942 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 140 predicate places. [2022-11-18 20:56:06,943 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 893 transitions, 8281 flow [2022-11-18 20:56:06,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:06,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:06,944 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:06,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:56:06,944 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:56:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1771955896, now seen corresponding path program 3 times [2022-11-18 20:56:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:06,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80230853] [2022-11-18 20:56:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:56:10,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:10,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80230853] [2022-11-18 20:56:10,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80230853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:10,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:10,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:56:10,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247906611] [2022-11-18 20:56:10,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:10,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:56:10,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:10,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:56:10,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:56:10,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 275 [2022-11-18 20:56:10,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 893 transitions, 8281 flow. Second operand has 25 states, 25 states have (on average 110.92) internal successors, (2773), 25 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:10,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:10,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 275 [2022-11-18 20:56:10,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:23,390 INFO L130 PetriNetUnfolder]: 5519/15319 cut-off events. [2022-11-18 20:56:23,390 INFO L131 PetriNetUnfolder]: For 35584/35619 co-relation queries the response was YES. [2022-11-18 20:56:23,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50906 conditions, 15319 events. 5519/15319 cut-off events. For 35584/35619 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 140698 event pairs, 1593 based on Foata normal form. 56/14742 useless extension candidates. Maximal degree in co-relation 50847. Up to 4932 conditions per place. [2022-11-18 20:56:23,616 INFO L137 encePairwiseOnDemand]: 225/275 looper letters, 1148 selfloop transitions, 379 changer transitions 8/1671 dead transitions. [2022-11-18 20:56:23,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 1671 transitions, 16768 flow [2022-11-18 20:56:23,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-18 20:56:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-18 20:56:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5214 transitions. [2022-11-18 20:56:23,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4514285714285714 [2022-11-18 20:56:23,626 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5214 transitions. [2022-11-18 20:56:23,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5214 transitions. [2022-11-18 20:56:23,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:23,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5214 transitions. [2022-11-18 20:56:23,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 124.14285714285714) internal successors, (5214), 42 states have internal predecessors, (5214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:23,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:23,651 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:23,651 INFO L175 Difference]: Start difference. First operand has 414 places, 893 transitions, 8281 flow. Second operand 42 states and 5214 transitions. [2022-11-18 20:56:23,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 1671 transitions, 16768 flow [2022-11-18 20:56:24,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 1671 transitions, 16674 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-18 20:56:24,059 INFO L231 Difference]: Finished difference. Result has 465 places, 1039 transitions, 11745 flow [2022-11-18 20:56:24,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=8191, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=893, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=11745, PETRI_PLACES=465, PETRI_TRANSITIONS=1039} [2022-11-18 20:56:24,061 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 191 predicate places. [2022-11-18 20:56:24,061 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 1039 transitions, 11745 flow [2022-11-18 20:56:24,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 110.92) internal successors, (2773), 25 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:24,062 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:24,063 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:24,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:56:24,063 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:56:24,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1505408528, now seen corresponding path program 4 times [2022-11-18 20:56:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:24,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812668718] [2022-11-18 20:56:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:24,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:56:27,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:27,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812668718] [2022-11-18 20:56:27,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812668718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:27,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:27,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-18 20:56:27,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080121530] [2022-11-18 20:56:27,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:27,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:56:27,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:56:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:56:27,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 275 [2022-11-18 20:56:27,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 1039 transitions, 11745 flow. Second operand has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:27,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 275 [2022-11-18 20:56:27,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:41,351 INFO L130 PetriNetUnfolder]: 8197/23494 cut-off events. [2022-11-18 20:56:41,352 INFO L131 PetriNetUnfolder]: For 71173/71542 co-relation queries the response was YES. [2022-11-18 20:56:41,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81307 conditions, 23494 events. 8197/23494 cut-off events. For 71173/71542 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 243995 event pairs, 1895 based on Foata normal form. 263/22778 useless extension candidates. Maximal degree in co-relation 81231. Up to 6785 conditions per place. [2022-11-18 20:56:41,802 INFO L137 encePairwiseOnDemand]: 239/275 looper letters, 1160 selfloop transitions, 573 changer transitions 5/1890 dead transitions. [2022-11-18 20:56:41,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 1890 transitions, 23141 flow [2022-11-18 20:56:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:56:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:56:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4055 transitions. [2022-11-18 20:56:41,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5266233766233767 [2022-11-18 20:56:41,811 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4055 transitions. [2022-11-18 20:56:41,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4055 transitions. [2022-11-18 20:56:41,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:41,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4055 transitions. [2022-11-18 20:56:41,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 144.82142857142858) internal successors, (4055), 28 states have internal predecessors, (4055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:41,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 275.0) internal successors, (7975), 29 states have internal predecessors, (7975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:41,839 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 275.0) internal successors, (7975), 29 states have internal predecessors, (7975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:41,840 INFO L175 Difference]: Start difference. First operand has 465 places, 1039 transitions, 11745 flow. Second operand 28 states and 4055 transitions. [2022-11-18 20:56:41,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 1890 transitions, 23141 flow [2022-11-18 20:56:42,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1890 transitions, 22963 flow, removed 32 selfloop flow, removed 22 redundant places. [2022-11-18 20:56:42,474 INFO L231 Difference]: Finished difference. Result has 484 places, 1290 transitions, 17766 flow [2022-11-18 20:56:42,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=11597, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=17766, PETRI_PLACES=484, PETRI_TRANSITIONS=1290} [2022-11-18 20:56:42,475 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 210 predicate places. [2022-11-18 20:56:42,476 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 1290 transitions, 17766 flow [2022-11-18 20:56:42,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:42,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:42,477 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:42,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:56:42,478 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:56:42,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:42,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1204123992, now seen corresponding path program 5 times [2022-11-18 20:56:42,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:42,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474653167] [2022-11-18 20:56:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:42,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:45,185 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:56:45,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:45,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474653167] [2022-11-18 20:56:45,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474653167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:45,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:45,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:56:45,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391651741] [2022-11-18 20:56:45,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:45,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:56:45,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:45,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:56:45,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:56:45,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 275 [2022-11-18 20:56:45,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1290 transitions, 17766 flow. Second operand has 13 states, 13 states have (on average 140.69230769230768) internal successors, (1829), 13 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:45,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:45,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 275 [2022-11-18 20:56:45,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:57:05,540 INFO L130 PetriNetUnfolder]: 10490/30001 cut-off events. [2022-11-18 20:57:05,541 INFO L131 PetriNetUnfolder]: For 112377/113062 co-relation queries the response was YES. [2022-11-18 20:57:06,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108758 conditions, 30001 events. 10490/30001 cut-off events. For 112377/113062 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 326390 event pairs, 2490 based on Foata normal form. 476/29257 useless extension candidates. Maximal degree in co-relation 108668. Up to 10981 conditions per place. [2022-11-18 20:57:06,347 INFO L137 encePairwiseOnDemand]: 241/275 looper letters, 1302 selfloop transitions, 619 changer transitions 7/2092 dead transitions. [2022-11-18 20:57:06,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 2092 transitions, 28973 flow [2022-11-18 20:57:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:57:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:57:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4161 transitions. [2022-11-18 20:57:06,358 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5819580419580419 [2022-11-18 20:57:06,358 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4161 transitions. [2022-11-18 20:57:06,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4161 transitions. [2022-11-18 20:57:06,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:57:06,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4161 transitions. [2022-11-18 20:57:06,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 160.03846153846155) internal successors, (4161), 26 states have internal predecessors, (4161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:57:06,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 275.0) internal successors, (7425), 27 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:57:06,381 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 275.0) internal successors, (7425), 27 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:57:06,381 INFO L175 Difference]: Start difference. First operand has 484 places, 1290 transitions, 17766 flow. Second operand 26 states and 4161 transitions. [2022-11-18 20:57:06,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 2092 transitions, 28973 flow [2022-11-18 20:57:07,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 2092 transitions, 28704 flow, removed 130 selfloop flow, removed 4 redundant places. [2022-11-18 20:57:07,688 INFO L231 Difference]: Finished difference. Result has 523 places, 1491 transitions, 23570 flow [2022-11-18 20:57:07,690 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=17531, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=422, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=714, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=23570, PETRI_PLACES=523, PETRI_TRANSITIONS=1491} [2022-11-18 20:57:07,691 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 249 predicate places. [2022-11-18 20:57:07,691 INFO L495 AbstractCegarLoop]: Abstraction has has 523 places, 1491 transitions, 23570 flow [2022-11-18 20:57:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 140.69230769230768) internal successors, (1829), 13 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:57:07,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:57:07,692 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:57:07,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:57:07,693 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:57:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:57:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 784701552, now seen corresponding path program 6 times [2022-11-18 20:57:07,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:57:07,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503516414] [2022-11-18 20:57:07,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:57:07,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:57:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:57:10,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:57:10,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503516414] [2022-11-18 20:57:10,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503516414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:57:10,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:57:10,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-18 20:57:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337266661] [2022-11-18 20:57:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:57:10,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:57:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:57:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:57:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:57:10,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 275 [2022-11-18 20:57:10,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 1491 transitions, 23570 flow. Second operand has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:57:10,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:57:10,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 275 [2022-11-18 20:57:10,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand