./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 10:56:53,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:56:53,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:56:53,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:56:53,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:56:53,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:56:53,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:56:53,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:56:53,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:56:53,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:56:53,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:56:53,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:56:53,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:56:53,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:56:53,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:56:53,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:56:53,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:56:53,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:56:53,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:56:53,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:56:53,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:56:53,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:56:53,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:56:53,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:56:53,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:56:53,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:56:53,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:56:53,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:56:53,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:56:53,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:56:53,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:56:53,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:56:53,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:56:53,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:56:53,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:56:53,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:56:53,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:56:53,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:56:53,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:56:53,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:56:53,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:56:53,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 10:56:53,806 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:56:53,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:56:53,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:56:53,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:56:53,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:56:53,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:56:53,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:56:53,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:56:53,809 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:56:53,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:56:53,810 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:56:53,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:56:53,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:56:53,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:56:53,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:56:53,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:56:53,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:56:53,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:56:53,812 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 10:56:53,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:56:53,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:56:53,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:56:53,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:56:53,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:56:53,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:56:53,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:56:53,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:56:53,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:56:53,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:56:53,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:56:53,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:56:53,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:56:53,815 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:56:53,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:56:53,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:56:53,816 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_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2022-11-16 10:56:54,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:56:54,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:56:54,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:56:54,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:56:54,191 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:56:54,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-16 10:56:54,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/data/736386fa2/812caebf571245b5a0d5352bf48d16a5/FLAGd5c38b5ba [2022-11-16 10:56:54,868 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:56:54,875 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-16 10:56:54,896 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/data/736386fa2/812caebf571245b5a0d5352bf48d16a5/FLAGd5c38b5ba [2022-11-16 10:56:55,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/data/736386fa2/812caebf571245b5a0d5352bf48d16a5 [2022-11-16 10:56:55,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:56:55,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:56:55,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:56:55,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:56:55,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:56:55,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:56:55" (1/1) ... [2022-11-16 10:56:55,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0e047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:55, skipping insertion in model container [2022-11-16 10:56:55,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:56:55" (1/1) ... [2022-11-16 10:56:55,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:56:55,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:56:55,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:56:55,859 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:56:55,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:56:56,013 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:56:56,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56 WrapperNode [2022-11-16 10:56:56,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:56:56,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:56:56,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:56:56,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:56:56,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,120 INFO L138 Inliner]: procedures = 371, calls = 34, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 231 [2022-11-16 10:56:56,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:56:56,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:56:56,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:56:56,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:56:56,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:56:56,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:56:56,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:56:56,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:56:56,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (1/1) ... [2022-11-16 10:56:56,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:56:56,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:56,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:56:56,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:56:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:56:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 10:56:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:56:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:56:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:56:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 10:56:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:56:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:56:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 10:56:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 10:56:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 10:56:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:56:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:56:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:56:56,287 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:56:56,500 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:56:56,502 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:56:57,112 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:56:57,134 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:56:57,134 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 10:56:57,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:56:57 BoogieIcfgContainer [2022-11-16 10:56:57,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:56:57,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:56:57,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:56:57,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:56:57,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:56:55" (1/3) ... [2022-11-16 10:56:57,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:56:57, skipping insertion in model container [2022-11-16 10:56:57,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:56" (2/3) ... [2022-11-16 10:56:57,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:56:57, skipping insertion in model container [2022-11-16 10:56:57,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:56:57" (3/3) ... [2022-11-16 10:56:57,146 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2022-11-16 10:56:57,154 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:56:57,172 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:56:57,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 10:56:57,172 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:56:57,334 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 10:56:57,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 278 transitions, 561 flow [2022-11-16 10:56:57,552 INFO L130 PetriNetUnfolder]: 4/277 cut-off events. [2022-11-16 10:56:57,552 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:56:57,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 277 events. 4/277 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 151. Up to 2 conditions per place. [2022-11-16 10:56:57,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 278 places, 278 transitions, 561 flow [2022-11-16 10:56:57,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 277 transitions, 557 flow [2022-11-16 10:56:57,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:56:57,603 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;@65e11b9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:56:57,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-16 10:56:57,618 INFO L130 PetriNetUnfolder]: 3/52 cut-off events. [2022-11-16 10:56:57,618 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:56:57,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:56:57,619 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] [2022-11-16 10:56:57,620 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)] === [2022-11-16 10:56:57,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:57,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1544077041, now seen corresponding path program 1 times [2022-11-16 10:56:57,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:57,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498799502] [2022-11-16 10:56:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:57,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:56:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:57,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498799502] [2022-11-16 10:56:57,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498799502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:57,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:57,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:56:57,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492479332] [2022-11-16 10:56:57,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:57,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 10:56:57,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:57,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 10:56:57,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:56:57,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 278 [2022-11-16 10:56:57,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 277 transitions, 557 flow. Second operand has 2 states, 2 states have (on average 274.5) internal successors, (549), 2 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:57,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:56:57,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 278 [2022-11-16 10:56:57,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:56:57,999 INFO L130 PetriNetUnfolder]: 1/274 cut-off events. [2022-11-16 10:56:57,999 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 10:56:58,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 274 events. 1/274 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 3/256 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2022-11-16 10:56:58,001 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 1 selfloop transitions, 0 changer transitions 1/274 dead transitions. [2022-11-16 10:56:58,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 274 transitions, 553 flow [2022-11-16 10:56:58,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 10:56:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 10:56:58,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 552 transitions. [2022-11-16 10:56:58,024 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9928057553956835 [2022-11-16 10:56:58,025 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 552 transitions. [2022-11-16 10:56:58,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 552 transitions. [2022-11-16 10:56:58,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:56:58,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 552 transitions. [2022-11-16 10:56:58,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.0) internal successors, (552), 2 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,054 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,056 INFO L175 Difference]: Start difference. First operand has 277 places, 277 transitions, 557 flow. Second operand 2 states and 552 transitions. [2022-11-16 10:56:58,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 274 transitions, 553 flow [2022-11-16 10:56:58,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 274 transitions, 552 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:56:58,070 INFO L231 Difference]: Finished difference. Result has 277 places, 273 transitions, 548 flow [2022-11-16 10:56:58,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=548, PETRI_PLACES=277, PETRI_TRANSITIONS=273} [2022-11-16 10:56:58,078 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 0 predicate places. [2022-11-16 10:56:58,079 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 273 transitions, 548 flow [2022-11-16 10:56:58,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 274.5) internal successors, (549), 2 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:56:58,080 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] [2022-11-16 10:56:58,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:56:58,081 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)] === [2022-11-16 10:56:58,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:58,082 INFO L85 PathProgramCache]: Analyzing trace with hash -582463024, now seen corresponding path program 1 times [2022-11-16 10:56:58,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:58,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276331041] [2022-11-16 10:56:58,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:58,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:56:58,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:58,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276331041] [2022-11-16 10:56:58,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276331041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:58,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:58,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:56:58,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801005332] [2022-11-16 10:56:58,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:58,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:56:58,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:58,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:56:58,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:56:58,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 278 [2022-11-16 10:56:58,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 273 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:56:58,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 278 [2022-11-16 10:56:58,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:56:58,393 INFO L130 PetriNetUnfolder]: 1/277 cut-off events. [2022-11-16 10:56:58,393 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:56:58,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 277 events. 1/277 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. 0/257 useless extension candidates. Maximal degree in co-relation 291. Up to 9 conditions per place. [2022-11-16 10:56:58,395 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 10 selfloop transitions, 2 changer transitions 0/277 dead transitions. [2022-11-16 10:56:58,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 277 transitions, 580 flow [2022-11-16 10:56:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:56:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:56:58,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-11-16 10:56:58,399 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9760191846522782 [2022-11-16 10:56:58,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-11-16 10:56:58,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-11-16 10:56:58,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:56:58,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-11-16 10:56:58,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,409 INFO L175 Difference]: Start difference. First operand has 277 places, 273 transitions, 548 flow. Second operand 3 states and 814 transitions. [2022-11-16 10:56:58,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 277 transitions, 580 flow [2022-11-16 10:56:58,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 277 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:56:58,419 INFO L231 Difference]: Finished difference. Result has 279 places, 274 transitions, 560 flow [2022-11-16 10:56:58,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=279, PETRI_TRANSITIONS=274} [2022-11-16 10:56:58,421 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 2 predicate places. [2022-11-16 10:56:58,421 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 274 transitions, 560 flow [2022-11-16 10:56:58,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:56:58,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:56:58,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:56:58,423 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)] === [2022-11-16 10:56:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2083507397, now seen corresponding path program 1 times [2022-11-16 10:56:58,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:58,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702272916] [2022-11-16 10:56:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:58,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:56:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:58,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702272916] [2022-11-16 10:56:58,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702272916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:56:58,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143370569] [2022-11-16 10:56:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:58,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:58,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:58,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:56:58,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 10:56:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:58,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 10:56:58,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:56:58,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:56:58,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:56:58,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143370569] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:56:58,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:56:58,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 10:56:58,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011424969] [2022-11-16 10:56:58,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:56:58,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 10:56:58,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 10:56:58,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:56:58,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 278 [2022-11-16 10:56:58,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 274 transitions, 560 flow. Second operand has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:58,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:56:58,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 278 [2022-11-16 10:56:58,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:56:59,117 INFO L130 PetriNetUnfolder]: 1/284 cut-off events. [2022-11-16 10:56:59,118 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 10:56:59,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 284 events. 1/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 2/267 useless extension candidates. Maximal degree in co-relation 312. Up to 6 conditions per place. [2022-11-16 10:56:59,121 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 11 selfloop transitions, 9 changer transitions 0/284 dead transitions. [2022-11-16 10:56:59,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 284 transitions, 622 flow [2022-11-16 10:56:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 10:56:59,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 10:56:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2416 transitions. [2022-11-16 10:56:59,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9656274980015987 [2022-11-16 10:56:59,150 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2416 transitions. [2022-11-16 10:56:59,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2416 transitions. [2022-11-16 10:56:59,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:56:59,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2416 transitions. [2022-11-16 10:56:59,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 268.44444444444446) internal successors, (2416), 9 states have internal predecessors, (2416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:59,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:59,164 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:59,164 INFO L175 Difference]: Start difference. First operand has 279 places, 274 transitions, 560 flow. Second operand 9 states and 2416 transitions. [2022-11-16 10:56:59,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 284 transitions, 622 flow [2022-11-16 10:56:59,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 284 transitions, 620 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:56:59,170 INFO L231 Difference]: Finished difference. Result has 289 places, 280 transitions, 608 flow [2022-11-16 10:56:59,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=608, PETRI_PLACES=289, PETRI_TRANSITIONS=280} [2022-11-16 10:56:59,171 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 12 predicate places. [2022-11-16 10:56:59,171 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 280 transitions, 608 flow [2022-11-16 10:56:59,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:59,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:56:59,174 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] [2022-11-16 10:56:59,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 10:56:59,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:59,380 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)] === [2022-11-16 10:56:59,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash -852627547, now seen corresponding path program 2 times [2022-11-16 10:56:59,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:59,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68303152] [2022-11-16 10:56:59,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:59,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,603 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:56:59,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:59,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68303152] [2022-11-16 10:56:59,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68303152] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:56:59,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135137781] [2022-11-16 10:56:59,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:56:59,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:59,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:59,606 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:56:59,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 10:56:59,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 10:56:59,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:56:59,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 10:56:59,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:59,792 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 [2022-11-16 10:56:59,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:59,820 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 [2022-11-16 10:56:59,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:59,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:59,860 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 10:56:59,860 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 [2022-11-16 10:56:59,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:59,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:59,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:59,906 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 10:56:59,907 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 [2022-11-16 10:56:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 10:56:59,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:59,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135137781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:59,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:56:59,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-16 10:56:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402892746] [2022-11-16 10:56:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:59,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:56:59,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:59,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:56:59,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-16 10:56:59,946 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 278 [2022-11-16 10:56:59,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 280 transitions, 608 flow. Second operand has 8 states, 8 states have (on average 149.375) internal successors, (1195), 8 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:59,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:56:59,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 278 [2022-11-16 10:56:59,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:00,823 INFO L130 PetriNetUnfolder]: 649/2112 cut-off events. [2022-11-16 10:57:00,823 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 10:57:00,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 2112 events. 649/2112 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11426 event pairs, 648 based on Foata normal form. 0/1861 useless extension candidates. Maximal degree in co-relation 3560. Up to 1405 conditions per place. [2022-11-16 10:57:00,842 INFO L137 encePairwiseOnDemand]: 259/278 looper letters, 108 selfloop transitions, 17 changer transitions 0/278 dead transitions. [2022-11-16 10:57:00,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 278 transitions, 854 flow [2022-11-16 10:57:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 10:57:00,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 10:57:00,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2022-11-16 10:57:00,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5831334932054356 [2022-11-16 10:57:00,846 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1459 transitions. [2022-11-16 10:57:00,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1459 transitions. [2022-11-16 10:57:00,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:00,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1459 transitions. [2022-11-16 10:57:00,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 162.11111111111111) internal successors, (1459), 9 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:00,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:00,858 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:00,858 INFO L175 Difference]: Start difference. First operand has 289 places, 280 transitions, 608 flow. Second operand 9 states and 1459 transitions. [2022-11-16 10:57:00,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 278 transitions, 854 flow [2022-11-16 10:57:00,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 278 transitions, 848 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 10:57:00,865 INFO L231 Difference]: Finished difference. Result has 294 places, 278 transitions, 632 flow [2022-11-16 10:57:00,865 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=632, PETRI_PLACES=294, PETRI_TRANSITIONS=278} [2022-11-16 10:57:00,867 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 17 predicate places. [2022-11-16 10:57:00,867 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 278 transitions, 632 flow [2022-11-16 10:57:00,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 149.375) internal successors, (1195), 8 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:00,869 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:00,869 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, 1, 1, 1] [2022-11-16 10:57:00,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 10:57:01,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:01,075 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)] === [2022-11-16 10:57:01,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:01,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1238004900, now seen corresponding path program 1 times [2022-11-16 10:57:01,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:01,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6198703] [2022-11-16 10:57:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:01,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:01,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:01,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6198703] [2022-11-16 10:57:01,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6198703] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:57:01,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232262616] [2022-11-16 10:57:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:01,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:01,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:01,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:57:01,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 10:57:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:01,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 10:57:01,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:01,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:57:01,736 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:01,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232262616] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:57:01,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:57:01,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 10:57:01,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93001631] [2022-11-16 10:57:01,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:57:01,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 10:57:01,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:01,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 10:57:01,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 10:57:01,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 278 [2022-11-16 10:57:01,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 278 transitions, 632 flow. Second operand has 18 states, 18 states have (on average 268.22222222222223) internal successors, (4828), 18 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:01,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:01,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 278 [2022-11-16 10:57:01,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:02,008 INFO L130 PetriNetUnfolder]: 1/302 cut-off events. [2022-11-16 10:57:02,008 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-16 10:57:02,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 302 events. 1/302 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 4/289 useless extension candidates. Maximal degree in co-relation 407. Up to 11 conditions per place. [2022-11-16 10:57:02,009 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 19 selfloop transitions, 21 changer transitions 0/302 dead transitions. [2022-11-16 10:57:02,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 302 transitions, 812 flow [2022-11-16 10:57:02,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 10:57:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 10:57:02,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5630 transitions. [2022-11-16 10:57:02,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9643713600548133 [2022-11-16 10:57:02,023 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5630 transitions. [2022-11-16 10:57:02,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5630 transitions. [2022-11-16 10:57:02,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:02,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5630 transitions. [2022-11-16 10:57:02,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 268.0952380952381) internal successors, (5630), 21 states have internal predecessors, (5630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:02,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 278.0) internal successors, (6116), 22 states have internal predecessors, (6116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:02,051 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 278.0) internal successors, (6116), 22 states have internal predecessors, (6116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:02,052 INFO L175 Difference]: Start difference. First operand has 294 places, 278 transitions, 632 flow. Second operand 21 states and 5630 transitions. [2022-11-16 10:57:02,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 302 transitions, 812 flow [2022-11-16 10:57:02,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 302 transitions, 778 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-16 10:57:02,061 INFO L231 Difference]: Finished difference. Result has 311 places, 291 transitions, 728 flow [2022-11-16 10:57:02,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=728, PETRI_PLACES=311, PETRI_TRANSITIONS=291} [2022-11-16 10:57:02,064 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 34 predicate places. [2022-11-16 10:57:02,064 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 291 transitions, 728 flow [2022-11-16 10:57:02,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 268.22222222222223) internal successors, (4828), 18 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:02,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:02,067 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] [2022-11-16 10:57:02,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 10:57:02,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:02,272 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)] === [2022-11-16 10:57:02,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:02,272 INFO L85 PathProgramCache]: Analyzing trace with hash -140987804, now seen corresponding path program 2 times [2022-11-16 10:57:02,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:02,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912372447] [2022-11-16 10:57:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:02,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:02,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:02,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912372447] [2022-11-16 10:57:02,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912372447] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:57:02,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147977137] [2022-11-16 10:57:02,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:57:02,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:02,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:02,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:57:02,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 10:57:02,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 10:57:02,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:57:02,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 10:57:02,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:02,848 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 [2022-11-16 10:57:02,871 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 [2022-11-16 10:57:02,904 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 10:57:02,904 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 [2022-11-16 10:57:02,952 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 10:57:02,955 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 [2022-11-16 10:57:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 10:57:02,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:57:02,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147977137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:02,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:57:02,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 10:57:02,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930863792] [2022-11-16 10:57:02,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:02,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:02,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:02,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:02,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 10:57:02,998 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 278 [2022-11-16 10:57:03,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 291 transitions, 728 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:03,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:03,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 278 [2022-11-16 10:57:03,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:03,862 INFO L130 PetriNetUnfolder]: 649/2130 cut-off events. [2022-11-16 10:57:03,863 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-16 10:57:03,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3642 conditions, 2130 events. 649/2130 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11467 event pairs, 648 based on Foata normal form. 0/1881 useless extension candidates. Maximal degree in co-relation 3630. Up to 1406 conditions per place. [2022-11-16 10:57:03,875 INFO L137 encePairwiseOnDemand]: 266/278 looper letters, 109 selfloop transitions, 10 changer transitions 0/289 dead transitions. [2022-11-16 10:57:03,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 289 transitions, 962 flow [2022-11-16 10:57:03,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1033 transitions. [2022-11-16 10:57:03,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6193045563549161 [2022-11-16 10:57:03,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1033 transitions. [2022-11-16 10:57:03,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1033 transitions. [2022-11-16 10:57:03,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:03,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1033 transitions. [2022-11-16 10:57:03,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:03,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:03,886 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:03,887 INFO L175 Difference]: Start difference. First operand has 311 places, 291 transitions, 728 flow. Second operand 6 states and 1033 transitions. [2022-11-16 10:57:03,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 289 transitions, 962 flow [2022-11-16 10:57:03,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 289 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 10:57:03,902 INFO L231 Difference]: Finished difference. Result has 308 places, 289 transitions, 720 flow [2022-11-16 10:57:03,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=720, PETRI_PLACES=308, PETRI_TRANSITIONS=289} [2022-11-16 10:57:03,909 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 31 predicate places. [2022-11-16 10:57:03,910 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 289 transitions, 720 flow [2022-11-16 10:57:03,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:03,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:03,920 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, 1, 1, 1] [2022-11-16 10:57:03,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 10:57:04,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 10:57:04,125 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)] === [2022-11-16 10:57:04,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1493118986, now seen corresponding path program 1 times [2022-11-16 10:57:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:04,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188247489] [2022-11-16 10:57:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:04,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:04,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:04,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188247489] [2022-11-16 10:57:04,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188247489] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:57:04,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947373223] [2022-11-16 10:57:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:04,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:04,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:04,558 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:57:04,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 10:57:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:04,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 10:57:04,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:04,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:57:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:05,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947373223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:57:05,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:57:05,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 10:57:05,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969047004] [2022-11-16 10:57:05,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:57:05,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 10:57:05,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:05,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 10:57:05,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 10:57:05,081 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 278 [2022-11-16 10:57:05,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 289 transitions, 720 flow. Second operand has 23 states, 23 states have (on average 268.39130434782606) internal successors, (6173), 23 states have internal predecessors, (6173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:05,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:05,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 278 [2022-11-16 10:57:05,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:05,496 INFO L130 PetriNetUnfolder]: 1/315 cut-off events. [2022-11-16 10:57:05,496 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-16 10:57:05,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 315 events. 1/315 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 3/303 useless extension candidates. Maximal degree in co-relation 486. Up to 16 conditions per place. [2022-11-16 10:57:05,498 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 25 selfloop transitions, 30 changer transitions 0/315 dead transitions. [2022-11-16 10:57:05,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 315 transitions, 970 flow [2022-11-16 10:57:05,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 10:57:05,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 10:57:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8038 transitions. [2022-11-16 10:57:05,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.96378896882494 [2022-11-16 10:57:05,515 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8038 transitions. [2022-11-16 10:57:05,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8038 transitions. [2022-11-16 10:57:05,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:05,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8038 transitions. [2022-11-16 10:57:05,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 267.93333333333334) internal successors, (8038), 30 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:05,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 278.0) internal successors, (8618), 31 states have internal predecessors, (8618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:05,551 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 278.0) internal successors, (8618), 31 states have internal predecessors, (8618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:05,551 INFO L175 Difference]: Start difference. First operand has 308 places, 289 transitions, 720 flow. Second operand 30 states and 8038 transitions. [2022-11-16 10:57:05,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 315 transitions, 970 flow [2022-11-16 10:57:05,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 315 transitions, 950 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:57:05,559 INFO L231 Difference]: Finished difference. Result has 336 places, 299 transitions, 852 flow [2022-11-16 10:57:05,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=852, PETRI_PLACES=336, PETRI_TRANSITIONS=299} [2022-11-16 10:57:05,561 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 59 predicate places. [2022-11-16 10:57:05,561 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 299 transitions, 852 flow [2022-11-16 10:57:05,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 268.39130434782606) internal successors, (6173), 23 states have internal predecessors, (6173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:05,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:05,563 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] [2022-11-16 10:57:05,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-16 10:57:05,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44d6ee4-28c7-47f0-8c2d-ac96ca7a4bb1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:05,771 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)] === [2022-11-16 10:57:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1721236511, now seen corresponding path program 2 times [2022-11-16 10:57:05,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:05,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028350533] [2022-11-16 10:57:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:05,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:06,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:06,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028350533] [2022-11-16 10:57:06,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028350533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:06,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:06,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:06,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123626490] [2022-11-16 10:57:06,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:06,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:06,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:06,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:06,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 278 [2022-11-16 10:57:06,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 299 transitions, 852 flow. Second operand has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:06,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:06,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 278 [2022-11-16 10:57:06,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:07,229 INFO L130 PetriNetUnfolder]: 820/2540 cut-off events. [2022-11-16 10:57:07,230 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-16 10:57:07,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4473 conditions, 2540 events. 820/2540 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 14251 event pairs, 819 based on Foata normal form. 0/2261 useless extension candidates. Maximal degree in co-relation 4457. Up to 1764 conditions per place. [2022-11-16 10:57:07,245 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 116 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2022-11-16 10:57:07,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 298 transitions, 1092 flow [2022-11-16 10:57:07,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1016 transitions. [2022-11-16 10:57:07,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6091127098321343 [2022-11-16 10:57:07,249 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1016 transitions. [2022-11-16 10:57:07,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1016 transitions. [2022-11-16 10:57:07,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:07,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1016 transitions. [2022-11-16 10:57:07,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:07,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:07,255 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:07,255 INFO L175 Difference]: Start difference. First operand has 336 places, 299 transitions, 852 flow. Second operand 6 states and 1016 transitions. [2022-11-16 10:57:07,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 298 transitions, 1092 flow [2022-11-16 10:57:07,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 298 transitions, 1046 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 10:57:07,263 INFO L231 Difference]: Finished difference. Result has 322 places, 298 transitions, 814 flow [2022-11-16 10:57:07,264 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=814, PETRI_PLACES=322, PETRI_TRANSITIONS=298} [2022-11-16 10:57:07,266 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 45 predicate places. [2022-11-16 10:57:07,267 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 298 transitions, 814 flow [2022-11-16 10:57:07,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:07,267 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:07,268 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] [2022-11-16 10:57:07,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 10:57:07,268 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)] === [2022-11-16 10:57:07,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash -764773287, now seen corresponding path program 1 times [2022-11-16 10:57:07,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:07,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681358186] [2022-11-16 10:57:07,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:07,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:08,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:08,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681358186] [2022-11-16 10:57:08,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681358186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:08,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:08,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:08,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601187633] [2022-11-16 10:57:08,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:08,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:08,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:08,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:08,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:08,066 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 278 [2022-11-16 10:57:08,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 298 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:08,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:08,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 278 [2022-11-16 10:57:08,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:09,732 INFO L130 PetriNetUnfolder]: 1446/4311 cut-off events. [2022-11-16 10:57:09,732 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-16 10:57:09,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7532 conditions, 4311 events. 1446/4311 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 29766 event pairs, 100 based on Foata normal form. 0/3857 useless extension candidates. Maximal degree in co-relation 7515. Up to 1891 conditions per place. [2022-11-16 10:57:09,757 INFO L137 encePairwiseOnDemand]: 250/278 looper letters, 217 selfloop transitions, 74 changer transitions 0/470 dead transitions. [2022-11-16 10:57:09,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 470 transitions, 1740 flow [2022-11-16 10:57:09,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:09,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2022-11-16 10:57:09,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7188249400479616 [2022-11-16 10:57:09,761 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1199 transitions. [2022-11-16 10:57:09,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1199 transitions. [2022-11-16 10:57:09,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:09,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1199 transitions. [2022-11-16 10:57:09,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:09,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:09,768 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:09,768 INFO L175 Difference]: Start difference. First operand has 322 places, 298 transitions, 814 flow. Second operand 6 states and 1199 transitions. [2022-11-16 10:57:09,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 470 transitions, 1740 flow [2022-11-16 10:57:09,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 470 transitions, 1730 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:57:09,778 INFO L231 Difference]: Finished difference. Result has 326 places, 365 transitions, 1276 flow [2022-11-16 10:57:09,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=326, PETRI_TRANSITIONS=365} [2022-11-16 10:57:09,780 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 49 predicate places. [2022-11-16 10:57:09,780 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 365 transitions, 1276 flow [2022-11-16 10:57:09,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:09,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:09,781 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] [2022-11-16 10:57:09,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 10:57:09,781 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)] === [2022-11-16 10:57:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:09,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1532564956, now seen corresponding path program 1 times [2022-11-16 10:57:09,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:09,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515513652] [2022-11-16 10:57:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:09,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:10,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:10,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515513652] [2022-11-16 10:57:10,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515513652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:10,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:10,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:10,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941468785] [2022-11-16 10:57:10,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:10,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:10,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:10,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:10,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:10,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 278 [2022-11-16 10:57:10,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 365 transitions, 1276 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:10,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:10,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 278 [2022-11-16 10:57:10,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:11,526 INFO L130 PetriNetUnfolder]: 1207/3991 cut-off events. [2022-11-16 10:57:11,527 INFO L131 PetriNetUnfolder]: For 1353/1441 co-relation queries the response was YES. [2022-11-16 10:57:11,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8098 conditions, 3991 events. 1207/3991 cut-off events. For 1353/1441 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27045 event pairs, 792 based on Foata normal form. 0/3589 useless extension candidates. Maximal degree in co-relation 8077. Up to 2566 conditions per place. [2022-11-16 10:57:11,564 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 169 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2022-11-16 10:57:11,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 364 transitions, 1622 flow [2022-11-16 10:57:11,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:11,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-16 10:57:11,574 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6468824940047961 [2022-11-16 10:57:11,574 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-16 10:57:11,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-16 10:57:11,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:11,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-16 10:57:11,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:11,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:11,582 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:11,582 INFO L175 Difference]: Start difference. First operand has 326 places, 365 transitions, 1276 flow. Second operand 6 states and 1079 transitions. [2022-11-16 10:57:11,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 364 transitions, 1622 flow [2022-11-16 10:57:11,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 364 transitions, 1622 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:57:11,595 INFO L231 Difference]: Finished difference. Result has 330 places, 364 transitions, 1284 flow [2022-11-16 10:57:11,595 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1284, PETRI_PLACES=330, PETRI_TRANSITIONS=364} [2022-11-16 10:57:11,596 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 53 predicate places. [2022-11-16 10:57:11,596 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 364 transitions, 1284 flow [2022-11-16 10:57:11,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:11,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:11,597 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] [2022-11-16 10:57:11,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 10:57:11,598 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)] === [2022-11-16 10:57:11,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:11,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1950203685, now seen corresponding path program 1 times [2022-11-16 10:57:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:11,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544333589] [2022-11-16 10:57:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:11,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:12,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:12,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544333589] [2022-11-16 10:57:12,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544333589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:12,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:12,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:12,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057254420] [2022-11-16 10:57:12,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:12,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:12,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:12,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:12,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:12,216 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 278 [2022-11-16 10:57:12,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 364 transitions, 1284 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:12,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:12,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 278 [2022-11-16 10:57:12,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:13,596 INFO L130 PetriNetUnfolder]: 1207/3990 cut-off events. [2022-11-16 10:57:13,596 INFO L131 PetriNetUnfolder]: For 1353/1441 co-relation queries the response was YES. [2022-11-16 10:57:13,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8104 conditions, 3990 events. 1207/3990 cut-off events. For 1353/1441 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27031 event pairs, 792 based on Foata normal form. 0/3589 useless extension candidates. Maximal degree in co-relation 8082. Up to 2568 conditions per place. [2022-11-16 10:57:13,640 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 170 selfloop transitions, 5 changer transitions 0/363 dead transitions. [2022-11-16 10:57:13,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 363 transitions, 1632 flow [2022-11-16 10:57:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:13,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2022-11-16 10:57:13,646 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6402877697841727 [2022-11-16 10:57:13,646 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1068 transitions. [2022-11-16 10:57:13,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1068 transitions. [2022-11-16 10:57:13,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:13,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1068 transitions. [2022-11-16 10:57:13,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:13,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:13,655 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:13,656 INFO L175 Difference]: Start difference. First operand has 330 places, 364 transitions, 1284 flow. Second operand 6 states and 1068 transitions. [2022-11-16 10:57:13,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 363 transitions, 1632 flow [2022-11-16 10:57:13,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 363 transitions, 1622 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:57:13,670 INFO L231 Difference]: Finished difference. Result has 329 places, 363 transitions, 1282 flow [2022-11-16 10:57:13,670 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1282, PETRI_PLACES=329, PETRI_TRANSITIONS=363} [2022-11-16 10:57:13,671 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 52 predicate places. [2022-11-16 10:57:13,671 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 363 transitions, 1282 flow [2022-11-16 10:57:13,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:13,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:13,672 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] [2022-11-16 10:57:13,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 10:57:13,673 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)] === [2022-11-16 10:57:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2052367616, now seen corresponding path program 1 times [2022-11-16 10:57:13,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:13,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107461023] [2022-11-16 10:57:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:13,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:14,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:14,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107461023] [2022-11-16 10:57:14,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107461023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:14,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:14,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:14,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957026806] [2022-11-16 10:57:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:14,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:14,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:14,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:14,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 278 [2022-11-16 10:57:14,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 363 transitions, 1282 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:14,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:14,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 278 [2022-11-16 10:57:14,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:15,481 INFO L130 PetriNetUnfolder]: 1207/3989 cut-off events. [2022-11-16 10:57:15,481 INFO L131 PetriNetUnfolder]: For 1356/1444 co-relation queries the response was YES. [2022-11-16 10:57:15,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8102 conditions, 3989 events. 1207/3989 cut-off events. For 1356/1444 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27047 event pairs, 792 based on Foata normal form. 0/3589 useless extension candidates. Maximal degree in co-relation 8080. Up to 2567 conditions per place. [2022-11-16 10:57:15,515 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 169 selfloop transitions, 5 changer transitions 0/362 dead transitions. [2022-11-16 10:57:15,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 362 transitions, 1628 flow [2022-11-16 10:57:15,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:15,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2022-11-16 10:57:15,518 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6396882494004796 [2022-11-16 10:57:15,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2022-11-16 10:57:15,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2022-11-16 10:57:15,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:15,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2022-11-16 10:57:15,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:15,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:15,529 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:15,529 INFO L175 Difference]: Start difference. First operand has 329 places, 363 transitions, 1282 flow. Second operand 6 states and 1067 transitions. [2022-11-16 10:57:15,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 362 transitions, 1628 flow [2022-11-16 10:57:15,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 362 transitions, 1618 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:57:15,541 INFO L231 Difference]: Finished difference. Result has 328 places, 362 transitions, 1280 flow [2022-11-16 10:57:15,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=328, PETRI_TRANSITIONS=362} [2022-11-16 10:57:15,543 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 51 predicate places. [2022-11-16 10:57:15,543 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 362 transitions, 1280 flow [2022-11-16 10:57:15,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:15,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:15,544 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] [2022-11-16 10:57:15,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 10:57:15,544 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)] === [2022-11-16 10:57:15,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1139996680, now seen corresponding path program 1 times [2022-11-16 10:57:15,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:15,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428738730] [2022-11-16 10:57:15,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:15,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:16,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:16,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428738730] [2022-11-16 10:57:16,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428738730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:16,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:16,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:16,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258292190] [2022-11-16 10:57:16,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:16,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:16,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:16,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:16,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:16,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 278 [2022-11-16 10:57:16,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 362 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:16,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:16,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 278 [2022-11-16 10:57:16,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:17,965 INFO L130 PetriNetUnfolder]: 1524/4615 cut-off events. [2022-11-16 10:57:17,965 INFO L131 PetriNetUnfolder]: For 1496/1597 co-relation queries the response was YES. [2022-11-16 10:57:17,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9519 conditions, 4615 events. 1524/4615 cut-off events. For 1496/1597 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31613 event pairs, 624 based on Foata normal form. 16/4210 useless extension candidates. Maximal degree in co-relation 9497. Up to 2609 conditions per place. [2022-11-16 10:57:18,000 INFO L137 encePairwiseOnDemand]: 255/278 looper letters, 251 selfloop transitions, 130 changer transitions 0/571 dead transitions. [2022-11-16 10:57:18,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 571 transitions, 2836 flow [2022-11-16 10:57:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1226 transitions. [2022-11-16 10:57:18,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7350119904076738 [2022-11-16 10:57:18,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1226 transitions. [2022-11-16 10:57:18,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1226 transitions. [2022-11-16 10:57:18,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:18,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1226 transitions. [2022-11-16 10:57:18,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:18,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:18,010 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:18,010 INFO L175 Difference]: Start difference. First operand has 328 places, 362 transitions, 1280 flow. Second operand 6 states and 1226 transitions. [2022-11-16 10:57:18,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 571 transitions, 2836 flow [2022-11-16 10:57:18,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 571 transitions, 2826 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:57:18,025 INFO L231 Difference]: Finished difference. Result has 333 places, 491 transitions, 2498 flow [2022-11-16 10:57:18,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2498, PETRI_PLACES=333, PETRI_TRANSITIONS=491} [2022-11-16 10:57:18,026 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 56 predicate places. [2022-11-16 10:57:18,026 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 491 transitions, 2498 flow [2022-11-16 10:57:18,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:18,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:18,027 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] [2022-11-16 10:57:18,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 10:57:18,028 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)] === [2022-11-16 10:57:18,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:18,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1098592927, now seen corresponding path program 1 times [2022-11-16 10:57:18,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:18,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25826379] [2022-11-16 10:57:18,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:18,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25826379] [2022-11-16 10:57:18,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25826379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:18,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:18,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:18,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664211250] [2022-11-16 10:57:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:18,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:18,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:18,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:18,764 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 278 [2022-11-16 10:57:18,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 491 transitions, 2498 flow. Second operand has 6 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:18,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:18,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 278 [2022-11-16 10:57:18,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:20,572 INFO L130 PetriNetUnfolder]: 1622/5401 cut-off events. [2022-11-16 10:57:20,572 INFO L131 PetriNetUnfolder]: For 3888/4083 co-relation queries the response was YES. [2022-11-16 10:57:20,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12514 conditions, 5401 events. 1622/5401 cut-off events. For 3888/4083 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40607 event pairs, 523 based on Foata normal form. 8/5037 useless extension candidates. Maximal degree in co-relation 12488. Up to 2869 conditions per place. [2022-11-16 10:57:20,611 INFO L137 encePairwiseOnDemand]: 256/278 looper letters, 375 selfloop transitions, 129 changer transitions 5/699 dead transitions. [2022-11-16 10:57:20,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 699 transitions, 4554 flow [2022-11-16 10:57:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:20,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1225 transitions. [2022-11-16 10:57:20,614 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7344124700239808 [2022-11-16 10:57:20,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1225 transitions. [2022-11-16 10:57:20,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1225 transitions. [2022-11-16 10:57:20,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:20,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1225 transitions. [2022-11-16 10:57:20,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.16666666666666) internal successors, (1225), 6 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:20,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:20,623 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:20,623 INFO L175 Difference]: Start difference. First operand has 333 places, 491 transitions, 2498 flow. Second operand 6 states and 1225 transitions. [2022-11-16 10:57:20,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 699 transitions, 4554 flow [2022-11-16 10:57:20,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 699 transitions, 4554 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:57:20,650 INFO L231 Difference]: Finished difference. Result has 343 places, 618 transitions, 3964 flow [2022-11-16 10:57:20,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3964, PETRI_PLACES=343, PETRI_TRANSITIONS=618} [2022-11-16 10:57:20,651 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 66 predicate places. [2022-11-16 10:57:20,651 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 618 transitions, 3964 flow [2022-11-16 10:57:20,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:20,652 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:20,652 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] [2022-11-16 10:57:20,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 10:57:20,653 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)] === [2022-11-16 10:57:20,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:20,653 INFO L85 PathProgramCache]: Analyzing trace with hash -421619158, now seen corresponding path program 1 times [2022-11-16 10:57:20,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:20,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061580982] [2022-11-16 10:57:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:20,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:21,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:21,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061580982] [2022-11-16 10:57:21,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061580982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:21,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:21,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:21,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153829906] [2022-11-16 10:57:21,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:21,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:21,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:21,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:21,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:21,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 278 [2022-11-16 10:57:21,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 618 transitions, 3964 flow. Second operand has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:21,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:21,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 278 [2022-11-16 10:57:21,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:22,788 INFO L130 PetriNetUnfolder]: 1747/5574 cut-off events. [2022-11-16 10:57:22,788 INFO L131 PetriNetUnfolder]: For 5717/5745 co-relation queries the response was YES. [2022-11-16 10:57:22,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14911 conditions, 5574 events. 1747/5574 cut-off events. For 5717/5745 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40880 event pairs, 657 based on Foata normal form. 0/5269 useless extension candidates. Maximal degree in co-relation 14880. Up to 3519 conditions per place. [2022-11-16 10:57:22,830 INFO L137 encePairwiseOnDemand]: 259/278 looper letters, 445 selfloop transitions, 84 changer transitions 0/716 dead transitions. [2022-11-16 10:57:22,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 716 transitions, 5536 flow [2022-11-16 10:57:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:22,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1139 transitions. [2022-11-16 10:57:22,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6828537170263789 [2022-11-16 10:57:22,833 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1139 transitions. [2022-11-16 10:57:22,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1139 transitions. [2022-11-16 10:57:22,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:22,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1139 transitions. [2022-11-16 10:57:22,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.83333333333334) internal successors, (1139), 6 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:22,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:22,839 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:22,839 INFO L175 Difference]: Start difference. First operand has 343 places, 618 transitions, 3964 flow. Second operand 6 states and 1139 transitions. [2022-11-16 10:57:22,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 716 transitions, 5536 flow [2022-11-16 10:57:22,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 716 transitions, 5282 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-16 10:57:22,877 INFO L231 Difference]: Finished difference. Result has 352 places, 689 transitions, 4500 flow [2022-11-16 10:57:22,878 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3716, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4500, PETRI_PLACES=352, PETRI_TRANSITIONS=689} [2022-11-16 10:57:22,878 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 75 predicate places. [2022-11-16 10:57:22,878 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 689 transitions, 4500 flow [2022-11-16 10:57:22,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:22,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:22,879 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, 1, 1, 1] [2022-11-16 10:57:22,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 10:57:22,879 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)] === [2022-11-16 10:57:22,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:22,885 INFO L85 PathProgramCache]: Analyzing trace with hash 846516053, now seen corresponding path program 1 times [2022-11-16 10:57:22,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:22,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970437085] [2022-11-16 10:57:22,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:22,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:25,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:25,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970437085] [2022-11-16 10:57:25,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970437085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:25,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:25,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 10:57:25,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450563965] [2022-11-16 10:57:25,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:25,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 10:57:25,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 10:57:25,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-16 10:57:25,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 10:57:25,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 689 transitions, 4500 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:25,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:25,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 10:57:25,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:28,951 INFO L130 PetriNetUnfolder]: 2459/7015 cut-off events. [2022-11-16 10:57:28,951 INFO L131 PetriNetUnfolder]: For 8741/8818 co-relation queries the response was YES. [2022-11-16 10:57:28,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20983 conditions, 7015 events. 2459/7015 cut-off events. For 8741/8818 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 53168 event pairs, 412 based on Foata normal form. 79/6777 useless extension candidates. Maximal degree in co-relation 20947. Up to 2799 conditions per place. [2022-11-16 10:57:29,001 INFO L137 encePairwiseOnDemand]: 251/278 looper letters, 693 selfloop transitions, 179 changer transitions 12/1042 dead transitions. [2022-11-16 10:57:29,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 1042 transitions, 8204 flow [2022-11-16 10:57:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 10:57:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 10:57:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3547 transitions. [2022-11-16 10:57:29,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5316247002398081 [2022-11-16 10:57:29,008 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3547 transitions. [2022-11-16 10:57:29,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3547 transitions. [2022-11-16 10:57:29,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:29,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3547 transitions. [2022-11-16 10:57:29,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 147.79166666666666) internal successors, (3547), 24 states have internal predecessors, (3547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:29,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 278.0) internal successors, (6950), 25 states have internal predecessors, (6950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:29,026 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 278.0) internal successors, (6950), 25 states have internal predecessors, (6950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:29,027 INFO L175 Difference]: Start difference. First operand has 352 places, 689 transitions, 4500 flow. Second operand 24 states and 3547 transitions. [2022-11-16 10:57:29,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 1042 transitions, 8204 flow [2022-11-16 10:57:29,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 1042 transitions, 8132 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-16 10:57:29,107 INFO L231 Difference]: Finished difference. Result has 384 places, 745 transitions, 5492 flow [2022-11-16 10:57:29,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4446, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5492, PETRI_PLACES=384, PETRI_TRANSITIONS=745} [2022-11-16 10:57:29,108 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 107 predicate places. [2022-11-16 10:57:29,109 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 745 transitions, 5492 flow [2022-11-16 10:57:29,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:29,110 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:29,110 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, 1, 1, 1] [2022-11-16 10:57:29,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 10:57:29,110 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)] === [2022-11-16 10:57:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:29,111 INFO L85 PathProgramCache]: Analyzing trace with hash 105456701, now seen corresponding path program 2 times [2022-11-16 10:57:29,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:29,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237482109] [2022-11-16 10:57:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:29,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:31,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:31,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237482109] [2022-11-16 10:57:31,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237482109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:31,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:31,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-16 10:57:31,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856679523] [2022-11-16 10:57:31,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:31,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 10:57:31,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:31,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 10:57:31,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-11-16 10:57:31,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 278 [2022-11-16 10:57:31,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 745 transitions, 5492 flow. Second operand has 21 states, 21 states have (on average 117.66666666666667) internal successors, (2471), 21 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:31,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:31,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 278 [2022-11-16 10:57:31,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:36,374 INFO L130 PetriNetUnfolder]: 3731/10777 cut-off events. [2022-11-16 10:57:36,374 INFO L131 PetriNetUnfolder]: For 18331/18442 co-relation queries the response was YES. [2022-11-16 10:57:36,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33692 conditions, 10777 events. 3731/10777 cut-off events. For 18331/18442 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 93066 event pairs, 997 based on Foata normal form. 109/10423 useless extension candidates. Maximal degree in co-relation 33646. Up to 3451 conditions per place. [2022-11-16 10:57:36,464 INFO L137 encePairwiseOnDemand]: 240/278 looper letters, 880 selfloop transitions, 284 changer transitions 12/1318 dead transitions. [2022-11-16 10:57:36,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 1318 transitions, 11571 flow [2022-11-16 10:57:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 10:57:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 10:57:36,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2467 transitions. [2022-11-16 10:57:36,469 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5220059246720271 [2022-11-16 10:57:36,469 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2467 transitions. [2022-11-16 10:57:36,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2467 transitions. [2022-11-16 10:57:36,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:36,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2467 transitions. [2022-11-16 10:57:36,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 145.11764705882354) internal successors, (2467), 17 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:36,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 278.0) internal successors, (5004), 18 states have internal predecessors, (5004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:36,481 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 278.0) internal successors, (5004), 18 states have internal predecessors, (5004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:36,481 INFO L175 Difference]: Start difference. First operand has 384 places, 745 transitions, 5492 flow. Second operand 17 states and 2467 transitions. [2022-11-16 10:57:36,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 1318 transitions, 11571 flow [2022-11-16 10:57:36,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1318 transitions, 11512 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 10:57:36,616 INFO L231 Difference]: Finished difference. Result has 403 places, 862 transitions, 7905 flow [2022-11-16 10:57:36,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5458, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7905, PETRI_PLACES=403, PETRI_TRANSITIONS=862} [2022-11-16 10:57:36,617 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 126 predicate places. [2022-11-16 10:57:36,617 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 862 transitions, 7905 flow [2022-11-16 10:57:36,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 117.66666666666667) internal successors, (2471), 21 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:36,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:36,619 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, 1, 1, 1] [2022-11-16 10:57:36,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 10:57:36,619 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)] === [2022-11-16 10:57:36,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:36,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1650958039, now seen corresponding path program 3 times [2022-11-16 10:57:36,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:36,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448903857] [2022-11-16 10:57:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:36,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:38,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:38,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448903857] [2022-11-16 10:57:38,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448903857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:38,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:38,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 10:57:38,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191236657] [2022-11-16 10:57:38,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:38,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 10:57:38,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:38,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 10:57:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-16 10:57:38,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 10:57:38,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 862 transitions, 7905 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:38,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:38,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 10:57:38,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:45,699 INFO L130 PetriNetUnfolder]: 5252/15057 cut-off events. [2022-11-16 10:57:45,700 INFO L131 PetriNetUnfolder]: For 34372/34559 co-relation queries the response was YES. [2022-11-16 10:57:45,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49625 conditions, 15057 events. 5252/15057 cut-off events. For 34372/34559 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 140792 event pairs, 1160 based on Foata normal form. 108/14529 useless extension candidates. Maximal degree in co-relation 49570. Up to 4766 conditions per place. [2022-11-16 10:57:45,830 INFO L137 encePairwiseOnDemand]: 242/278 looper letters, 1014 selfloop transitions, 357 changer transitions 8/1537 dead transitions. [2022-11-16 10:57:45,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 1537 transitions, 15974 flow [2022-11-16 10:57:45,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 10:57:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-16 10:57:45,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3383 transitions. [2022-11-16 10:57:45,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5531393067364291 [2022-11-16 10:57:45,835 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3383 transitions. [2022-11-16 10:57:45,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3383 transitions. [2022-11-16 10:57:45,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:45,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3383 transitions. [2022-11-16 10:57:45,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 153.77272727272728) internal successors, (3383), 22 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:45,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:45,852 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:45,852 INFO L175 Difference]: Start difference. First operand has 403 places, 862 transitions, 7905 flow. Second operand 22 states and 3383 transitions. [2022-11-16 10:57:45,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 1537 transitions, 15974 flow [2022-11-16 10:57:46,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1537 transitions, 15827 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 10:57:46,078 INFO L231 Difference]: Finished difference. Result has 433 places, 1032 transitions, 11425 flow [2022-11-16 10:57:46,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7794, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=862, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11425, PETRI_PLACES=433, PETRI_TRANSITIONS=1032} [2022-11-16 10:57:46,079 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 156 predicate places. [2022-11-16 10:57:46,079 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1032 transitions, 11425 flow [2022-11-16 10:57:46,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:46,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:46,080 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, 1, 1, 1] [2022-11-16 10:57:46,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 10:57:46,080 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)] === [2022-11-16 10:57:46,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:46,081 INFO L85 PathProgramCache]: Analyzing trace with hash 183865499, now seen corresponding path program 4 times [2022-11-16 10:57:46,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:46,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007022517] [2022-11-16 10:57:46,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:46,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,644 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:57:47,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:47,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007022517] [2022-11-16 10:57:47,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007022517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:47,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:47,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 10:57:47,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933257004] [2022-11-16 10:57:47,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:47,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 10:57:47,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:47,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 10:57:47,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-16 10:57:47,651 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 10:57:47,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1032 transitions, 11425 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:47,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:47,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 10:57:47,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:57,560 INFO L130 PetriNetUnfolder]: 8227/23693 cut-off events. [2022-11-16 10:57:57,561 INFO L131 PetriNetUnfolder]: For 66111/66323 co-relation queries the response was YES. [2022-11-16 10:57:57,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79307 conditions, 23693 events. 8227/23693 cut-off events. For 66111/66323 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 246782 event pairs, 2384 based on Foata normal form. 149/22860 useless extension candidates. Maximal degree in co-relation 79236. Up to 7681 conditions per place. [2022-11-16 10:57:57,843 INFO L137 encePairwiseOnDemand]: 243/278 looper letters, 933 selfloop transitions, 484 changer transitions 6/1581 dead transitions. [2022-11-16 10:57:57,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1581 transitions, 19634 flow [2022-11-16 10:57:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 10:57:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 10:57:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2725 transitions. [2022-11-16 10:57:57,848 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5445643485211831 [2022-11-16 10:57:57,848 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2725 transitions. [2022-11-16 10:57:57,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2725 transitions. [2022-11-16 10:57:57,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:57,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2725 transitions. [2022-11-16 10:57:57,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 151.38888888888889) internal successors, (2725), 18 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:57,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:57,861 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:57,861 INFO L175 Difference]: Start difference. First operand has 433 places, 1032 transitions, 11425 flow. Second operand 18 states and 2725 transitions. [2022-11-16 10:57:57,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1581 transitions, 19634 flow [2022-11-16 10:57:58,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 1581 transitions, 19395 flow, removed 96 selfloop flow, removed 4 redundant places. [2022-11-16 10:57:58,376 INFO L231 Difference]: Finished difference. Result has 456 places, 1214 transitions, 16363 flow [2022-11-16 10:57:58,377 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=11222, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16363, PETRI_PLACES=456, PETRI_TRANSITIONS=1214} [2022-11-16 10:57:58,379 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 179 predicate places. [2022-11-16 10:57:58,379 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1214 transitions, 16363 flow [2022-11-16 10:57:58,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:57:58,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:58,396 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, 1, 1, 1] [2022-11-16 10:57:58,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 10:57:58,396 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)] === [2022-11-16 10:57:58,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash -243132153, now seen corresponding path program 5 times [2022-11-16 10:57:58,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:58,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958417469] [2022-11-16 10:57:58,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:58,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:00,088 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:58:00,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:00,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958417469] [2022-11-16 10:58:00,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958417469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:00,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:00,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 10:58:00,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121562122] [2022-11-16 10:58:00,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:00,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 10:58:00,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:00,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 10:58:00,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-16 10:58:00,094 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 10:58:00,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1214 transitions, 16363 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:00,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:00,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 10:58:00,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:14,407 INFO L130 PetriNetUnfolder]: 10397/29879 cut-off events. [2022-11-16 10:58:14,407 INFO L131 PetriNetUnfolder]: For 106317/106685 co-relation queries the response was YES. [2022-11-16 10:58:14,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103338 conditions, 29879 events. 10397/29879 cut-off events. For 106317/106685 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 325726 event pairs, 3196 based on Foata normal form. 301/28945 useless extension candidates. Maximal degree in co-relation 103257. Up to 8976 conditions per place. [2022-11-16 10:58:14,827 INFO L137 encePairwiseOnDemand]: 240/278 looper letters, 1074 selfloop transitions, 599 changer transitions 12/1843 dead transitions. [2022-11-16 10:58:14,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 1843 transitions, 25358 flow [2022-11-16 10:58:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 10:58:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 10:58:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3143 transitions. [2022-11-16 10:58:14,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5652877697841726 [2022-11-16 10:58:14,832 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3143 transitions. [2022-11-16 10:58:14,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3143 transitions. [2022-11-16 10:58:14,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:14,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3143 transitions. [2022-11-16 10:58:14,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 157.15) internal successors, (3143), 20 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:15,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:15,045 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:15,045 INFO L175 Difference]: Start difference. First operand has 456 places, 1214 transitions, 16363 flow. Second operand 20 states and 3143 transitions. [2022-11-16 10:58:15,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 1843 transitions, 25358 flow [2022-11-16 10:58:15,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 1843 transitions, 25206 flow, removed 43 selfloop flow, removed 4 redundant places. [2022-11-16 10:58:15,694 INFO L231 Difference]: Finished difference. Result has 484 places, 1369 transitions, 21751 flow [2022-11-16 10:58:15,695 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=16229, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=445, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=21751, PETRI_PLACES=484, PETRI_TRANSITIONS=1369} [2022-11-16 10:58:15,695 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 207 predicate places. [2022-11-16 10:58:15,695 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 1369 transitions, 21751 flow [2022-11-16 10:58:15,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:15,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:15,696 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, 1, 1, 1] [2022-11-16 10:58:15,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 10:58:15,696 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)] === [2022-11-16 10:58:15,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:15,697 INFO L85 PathProgramCache]: Analyzing trace with hash 833992619, now seen corresponding path program 6 times [2022-11-16 10:58:15,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:15,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587930920] [2022-11-16 10:58:15,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:15,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:16,935 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 10:58:16,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:16,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587930920] [2022-11-16 10:58:16,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587930920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:16,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:16,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 10:58:16,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818257188] [2022-11-16 10:58:16,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:16,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 10:58:16,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:16,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 10:58:16,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-16 10:58:16,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 10:58:16,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1369 transitions, 21751 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:16,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:16,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 10:58:16,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand