./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ --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 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 --- 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-dbf71c6-m [2022-10-17 10:44:53,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:44:53,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:44:53,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:44:53,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:44:53,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:44:53,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:44:53,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:44:53,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:44:53,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:44:53,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:44:53,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:44:53,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:44:53,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:44:53,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:44:53,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:44:53,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:44:53,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:44:53,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:44:53,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:44:53,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:44:53,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:44:53,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:44:53,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:44:53,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:44:53,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:44:53,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:44:53,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:44:53,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:44:53,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:44:53,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:44:53,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:44:53,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:44:53,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:44:53,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:44:53,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:44:53,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:44:53,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:44:53,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:44:53,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:44:53,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:44:53,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:44:53,548 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:44:53,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:44:53,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:44:53,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:44:53,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:44:53,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:44:53,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:44:53,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:44:53,550 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:44:53,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:44:53,553 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:44:53,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:44:53,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:44:53,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:44:53,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:44:53,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:44:53,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:44:53,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:44:53,554 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:44:53,555 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:44:53,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:44:53,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:44:53,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:44:53,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:44:53,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:44:53,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:44:53,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:44:53,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:44:53,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:44:53,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:44:53,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:44:53,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:44:53,559 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:44:53,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:44:53,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:44:53,559 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_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 [2022-10-17 10:44:53,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:44:53,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:44:53,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:44:53,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:44:53,867 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:44:53,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-10-17 10:44:53,943 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/data/706ba6003/ec1a71af197a4d99918b0da04458159e/FLAGa57c828d5 [2022-10-17 10:44:54,501 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:44:54,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-10-17 10:44:54,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/data/706ba6003/ec1a71af197a4d99918b0da04458159e/FLAGa57c828d5 [2022-10-17 10:44:54,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/data/706ba6003/ec1a71af197a4d99918b0da04458159e [2022-10-17 10:44:54,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:44:54,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:44:54,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:44:54,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:44:54,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:44:54,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:44:54" (1/1) ... [2022-10-17 10:44:54,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0b922d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:54, skipping insertion in model container [2022-10-17 10:44:54,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:44:54" (1/1) ... [2022-10-17 10:44:54,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:44:55,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:44:55,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:44:55,685 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:44:55,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:44:55,855 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:44:55,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55 WrapperNode [2022-10-17 10:44:55,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:44:55,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:44:55,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:44:55,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:44:55,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:55,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:55,994 INFO L138 Inliner]: procedures = 371, calls = 46, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 423 [2022-10-17 10:44:55,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:44:55,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:44:55,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:44:55,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:44:56,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:44:56,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:44:56,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:44:56,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:44:56,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (1/1) ... [2022-10-17 10:44:56,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:44:56,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:56,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:44:56,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:44:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:44:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:44:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:44:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:44:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:44:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:44:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:44:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:44:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:44:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 10:44:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 10:44:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:44:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:44:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:44:56,233 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:44:56,469 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:44:56,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:44:57,351 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:44:57,376 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:44:57,377 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:44:57,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:44:57 BoogieIcfgContainer [2022-10-17 10:44:57,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:44:57,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:44:57,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:44:57,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:44:57,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:44:54" (1/3) ... [2022-10-17 10:44:57,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf82388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:44:57, skipping insertion in model container [2022-10-17 10:44:57,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:55" (2/3) ... [2022-10-17 10:44:57,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf82388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:44:57, skipping insertion in model container [2022-10-17 10:44:57,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:44:57" (3/3) ... [2022-10-17 10:44:57,392 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2022-10-17 10:44:57,402 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:44:57,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:44:57,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-10-17 10:44:57,413 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:44:57,562 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:44:57,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 513 places, 514 transitions, 1033 flow [2022-10-17 10:44:57,959 INFO L130 PetriNetUnfolder]: 5/513 cut-off events. [2022-10-17 10:44:57,960 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:44:57,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 513 events. 5/513 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 387. Up to 2 conditions per place. [2022-10-17 10:44:57,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 513 places, 514 transitions, 1033 flow [2022-10-17 10:44:57,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 512 places, 513 transitions, 1029 flow [2022-10-17 10:44:57,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:44:58,007 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;@636675b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:44:58,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-10-17 10:44:58,027 INFO L130 PetriNetUnfolder]: 4/65 cut-off events. [2022-10-17 10:44:58,027 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:44:58,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:44:58,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:58,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:44:58,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:58,034 INFO L85 PathProgramCache]: Analyzing trace with hash -759658408, now seen corresponding path program 1 times [2022-10-17 10:44:58,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:58,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252789896] [2022-10-17 10:44:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:58,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:58,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:58,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:58,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252789896] [2022-10-17 10:44:58,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252789896] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:44:58,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:44:58,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:44:58,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585424383] [2022-10-17 10:44:58,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:44:58,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:44:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:58,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:44:58,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:44:58,494 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 514 [2022-10-17 10:44:58,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 513 transitions, 1029 flow. Second operand has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:58,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:44:58,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 514 [2022-10-17 10:44:58,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:44:58,635 INFO L130 PetriNetUnfolder]: 1/513 cut-off events. [2022-10-17 10:44:58,635 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:44:58,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 513 events. 1/513 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 3/475 useless extension candidates. Maximal degree in co-relation 399. Up to 9 conditions per place. [2022-10-17 10:44:58,639 INFO L137 encePairwiseOnDemand]: 507/514 looper letters, 10 selfloop transitions, 2 changer transitions 2/513 dead transitions. [2022-10-17 10:44:58,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 513 transitions, 1053 flow [2022-10-17 10:44:58,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:44:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:44:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1524 transitions. [2022-10-17 10:44:58,658 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9883268482490273 [2022-10-17 10:44:58,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1524 transitions. [2022-10-17 10:44:58,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1524 transitions. [2022-10-17 10:44:58,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:44:58,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1524 transitions. [2022-10-17 10:44:58,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:58,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:58,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:58,687 INFO L175 Difference]: Start difference. First operand has 512 places, 513 transitions, 1029 flow. Second operand 3 states and 1524 transitions. [2022-10-17 10:44:58,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 513 transitions, 1053 flow [2022-10-17 10:44:58,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 513 transitions, 1052 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:44:58,735 INFO L231 Difference]: Finished difference. Result has 514 places, 508 transitions, 1028 flow [2022-10-17 10:44:58,738 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1028, PETRI_PLACES=514, PETRI_TRANSITIONS=508} [2022-10-17 10:44:58,741 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 2 predicate places. [2022-10-17 10:44:58,742 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 508 transitions, 1028 flow [2022-10-17 10:44:58,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:58,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:44:58,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:58,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:44:58,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:44:58,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:58,745 INFO L85 PathProgramCache]: Analyzing trace with hash 470193548, now seen corresponding path program 1 times [2022-10-17 10:44:58,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:58,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979020843] [2022-10-17 10:44:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:58,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:58,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:58,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979020843] [2022-10-17 10:44:58,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979020843] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:58,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970266008] [2022-10-17 10:44:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:58,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:58,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:58,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:59,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:44:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:59,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:44:59,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:59,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:59,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970266008] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:59,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:59,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-17 10:44:59,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113492336] [2022-10-17 10:44:59,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:59,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:44:59,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:59,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:44:59,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:44:59,269 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 514 [2022-10-17 10:44:59,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 508 transitions, 1028 flow. Second operand has 10 states, 10 states have (on average 503.0) internal successors, (5030), 10 states have internal predecessors, (5030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:59,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:44:59,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 514 [2022-10-17 10:44:59,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:44:59,467 INFO L130 PetriNetUnfolder]: 1/518 cut-off events. [2022-10-17 10:44:59,467 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:44:59,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 518 events. 1/518 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 2/482 useless extension candidates. Maximal degree in co-relation 513. Up to 6 conditions per place. [2022-10-17 10:44:59,470 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 11 selfloop transitions, 9 changer transitions 0/518 dead transitions. [2022-10-17 10:44:59,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 518 transitions, 1090 flow [2022-10-17 10:44:59,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:44:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-10-17 10:44:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4531 transitions. [2022-10-17 10:44:59,513 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9794638996973627 [2022-10-17 10:44:59,513 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4531 transitions. [2022-10-17 10:44:59,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4531 transitions. [2022-10-17 10:44:59,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:44:59,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4531 transitions. [2022-10-17 10:44:59,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 503.44444444444446) internal successors, (4531), 9 states have internal predecessors, (4531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:59,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:59,549 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:59,549 INFO L175 Difference]: Start difference. First operand has 514 places, 508 transitions, 1028 flow. Second operand 9 states and 4531 transitions. [2022-10-17 10:44:59,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 518 transitions, 1090 flow [2022-10-17 10:44:59,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 518 transitions, 1088 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:44:59,563 INFO L231 Difference]: Finished difference. Result has 522 places, 514 transitions, 1076 flow [2022-10-17 10:44:59,564 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1076, PETRI_PLACES=522, PETRI_TRANSITIONS=514} [2022-10-17 10:44:59,565 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 10 predicate places. [2022-10-17 10:44:59,565 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 514 transitions, 1076 flow [2022-10-17 10:44:59,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 503.0) internal successors, (5030), 10 states have internal predecessors, (5030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:59,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:44:59,570 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:59,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:59,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:59,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:44:59,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:59,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1451934988, now seen corresponding path program 2 times [2022-10-17 10:44:59,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:59,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194712669] [2022-10-17 10:44:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:59,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:00,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:00,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194712669] [2022-10-17 10:45:00,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194712669] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:00,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276016863] [2022-10-17 10:45:00,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:45:00,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:00,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:00,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:00,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:45:00,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:45:00,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:45:00,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-17 10:45:00,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:00,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 10:45:00,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:45:00,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 10:45:00,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:45:00,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:45:00,461 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 10:45:00,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 10:45:00,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:45:00,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:45:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:45:00,513 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 10:45:00,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 10:45:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-17 10:45:00,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:45:00,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276016863] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:00,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:45:00,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-10-17 10:45:00,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909093694] [2022-10-17 10:45:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:00,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:45:00,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:45:00,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:45:00,562 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 514 [2022-10-17 10:45:00,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 514 transitions, 1076 flow. Second operand has 8 states, 8 states have (on average 243.375) internal successors, (1947), 8 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:00,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:00,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 514 [2022-10-17 10:45:00,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:02,282 INFO L130 PetriNetUnfolder]: 649/2351 cut-off events. [2022-10-17 10:45:02,283 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-10-17 10:45:02,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3943 conditions, 2351 events. 649/2351 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11580 event pairs, 648 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 3879. Up to 1519 conditions per place. [2022-10-17 10:45:02,304 INFO L137 encePairwiseOnDemand]: 465/514 looper letters, 219 selfloop transitions, 44 changer transitions 0/509 dead transitions. [2022-10-17 10:45:02,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 509 transitions, 1592 flow [2022-10-17 10:45:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:45:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-10-17 10:45:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2446 transitions. [2022-10-17 10:45:02,313 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5287505404236922 [2022-10-17 10:45:02,313 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2446 transitions. [2022-10-17 10:45:02,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2446 transitions. [2022-10-17 10:45:02,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:02,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2446 transitions. [2022-10-17 10:45:02,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 271.77777777777777) internal successors, (2446), 9 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:02,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:02,339 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:02,339 INFO L175 Difference]: Start difference. First operand has 522 places, 514 transitions, 1076 flow. Second operand 9 states and 2446 transitions. [2022-10-17 10:45:02,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 509 transitions, 1592 flow [2022-10-17 10:45:02,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 509 transitions, 1586 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-10-17 10:45:02,355 INFO L231 Difference]: Finished difference. Result has 524 places, 509 transitions, 1148 flow [2022-10-17 10:45:02,356 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1148, PETRI_PLACES=524, PETRI_TRANSITIONS=509} [2022-10-17 10:45:02,360 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 12 predicate places. [2022-10-17 10:45:02,360 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 509 transitions, 1148 flow [2022-10-17 10:45:02,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 243.375) internal successors, (1947), 8 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:02,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:02,364 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:02,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-17 10:45:02,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-10-17 10:45:02,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:02,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:02,592 INFO L85 PathProgramCache]: Analyzing trace with hash 785550879, now seen corresponding path program 1 times [2022-10-17 10:45:02,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:02,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642182696] [2022-10-17 10:45:02,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:02,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:02,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:02,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642182696] [2022-10-17 10:45:02,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642182696] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:02,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472548442] [2022-10-17 10:45:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:02,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:02,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:02,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:02,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:45:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:03,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:45:03,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:03,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:45:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:03,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472548442] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:45:03,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:45:03,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-17 10:45:03,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575083735] [2022-10-17 10:45:03,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:45:03,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-17 10:45:03,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:03,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-17 10:45:03,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-17 10:45:03,252 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 514 [2022-10-17 10:45:03,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 509 transitions, 1148 flow. Second operand has 18 states, 18 states have (on average 503.22222222222223) internal successors, (9058), 18 states have internal predecessors, (9058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:03,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:03,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 514 [2022-10-17 10:45:03,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:03,586 INFO L130 PetriNetUnfolder]: 1/533 cut-off events. [2022-10-17 10:45:03,587 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-10-17 10:45:03,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 533 events. 1/533 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 4/504 useless extension candidates. Maximal degree in co-relation 167. Up to 11 conditions per place. [2022-10-17 10:45:03,589 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 19 selfloop transitions, 21 changer transitions 0/533 dead transitions. [2022-10-17 10:45:03,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 533 transitions, 1328 flow [2022-10-17 10:45:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-17 10:45:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-10-17 10:45:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 10565 transitions. [2022-10-17 10:45:03,622 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9787845099129145 [2022-10-17 10:45:03,622 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 10565 transitions. [2022-10-17 10:45:03,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 10565 transitions. [2022-10-17 10:45:03,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:03,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 10565 transitions. [2022-10-17 10:45:03,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 503.0952380952381) internal successors, (10565), 21 states have internal predecessors, (10565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:03,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 514.0) internal successors, (11308), 22 states have internal predecessors, (11308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:03,696 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 514.0) internal successors, (11308), 22 states have internal predecessors, (11308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:03,696 INFO L175 Difference]: Start difference. First operand has 524 places, 509 transitions, 1148 flow. Second operand 21 states and 10565 transitions. [2022-10-17 10:45:03,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 533 transitions, 1328 flow [2022-10-17 10:45:03,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 533 transitions, 1240 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-10-17 10:45:03,714 INFO L231 Difference]: Finished difference. Result has 541 places, 522 transitions, 1190 flow [2022-10-17 10:45:03,716 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1190, PETRI_PLACES=541, PETRI_TRANSITIONS=522} [2022-10-17 10:45:03,717 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 29 predicate places. [2022-10-17 10:45:03,717 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 522 transitions, 1190 flow [2022-10-17 10:45:03,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 503.22222222222223) internal successors, (9058), 18 states have internal predecessors, (9058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:03,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:03,721 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:03,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:03,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:03,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:03,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:03,945 INFO L85 PathProgramCache]: Analyzing trace with hash -857486049, now seen corresponding path program 2 times [2022-10-17 10:45:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:03,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069416920] [2022-10-17 10:45:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:03,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:04,427 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:04,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:04,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069416920] [2022-10-17 10:45:04,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069416920] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:04,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284130447] [2022-10-17 10:45:04,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:45:04,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:04,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:04,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:04,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:45:04,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:45:04,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:45:04,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-17 10:45:04,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:04,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-17 10:45:04,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-17 10:45:04,645 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 10:45:04,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-10-17 10:45:04,691 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 10:45:04,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-10-17 10:45:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-17 10:45:04,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:45:04,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284130447] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:04,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:45:04,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-10-17 10:45:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046671469] [2022-10-17 10:45:04,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:04,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:04,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:45:04,733 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 514 [2022-10-17 10:45:04,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 522 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:04,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:04,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 514 [2022-10-17 10:45:04,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:06,182 INFO L130 PetriNetUnfolder]: 649/2366 cut-off events. [2022-10-17 10:45:06,183 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-10-17 10:45:06,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 2366 events. 649/2366 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11534 event pairs, 648 based on Foata normal form. 0/2105 useless extension candidates. Maximal degree in co-relation 3863. Up to 1520 conditions per place. [2022-10-17 10:45:06,200 INFO L137 encePairwiseOnDemand]: 484/514 looper letters, 223 selfloop transitions, 25 changer transitions 0/517 dead transitions. [2022-10-17 10:45:06,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 517 transitions, 1676 flow [2022-10-17 10:45:06,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:06,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:45:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1765 transitions. [2022-10-17 10:45:06,214 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5723086900129701 [2022-10-17 10:45:06,214 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1765 transitions. [2022-10-17 10:45:06,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1765 transitions. [2022-10-17 10:45:06,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:06,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1765 transitions. [2022-10-17 10:45:06,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 294.1666666666667) internal successors, (1765), 6 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:06,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:06,228 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:06,228 INFO L175 Difference]: Start difference. First operand has 541 places, 522 transitions, 1190 flow. Second operand 6 states and 1765 transitions. [2022-10-17 10:45:06,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 517 transitions, 1676 flow [2022-10-17 10:45:06,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 517 transitions, 1652 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-10-17 10:45:06,247 INFO L231 Difference]: Finished difference. Result has 535 places, 517 transitions, 1206 flow [2022-10-17 10:45:06,248 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1206, PETRI_PLACES=535, PETRI_TRANSITIONS=517} [2022-10-17 10:45:06,249 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 23 predicate places. [2022-10-17 10:45:06,249 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 517 transitions, 1206 flow [2022-10-17 10:45:06,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:06,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:06,250 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:06,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:06,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:06,479 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash 263191692, now seen corresponding path program 1 times [2022-10-17 10:45:06,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:06,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692718305] [2022-10-17 10:45:06,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:06,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:06,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:06,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692718305] [2022-10-17 10:45:06,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692718305] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:06,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609628631] [2022-10-17 10:45:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:06,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:06,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:06,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:45:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:07,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-17 10:45:07,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:07,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:45:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:07,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609628631] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:45:07,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:45:07,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-10-17 10:45:07,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905252806] [2022-10-17 10:45:07,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:45:07,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-17 10:45:07,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:07,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-17 10:45:07,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-10-17 10:45:07,471 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 514 [2022-10-17 10:45:07,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 517 transitions, 1206 flow. Second operand has 23 states, 23 states have (on average 503.39130434782606) internal successors, (11578), 23 states have internal predecessors, (11578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:07,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:07,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 514 [2022-10-17 10:45:07,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:07,854 INFO L130 PetriNetUnfolder]: 1/543 cut-off events. [2022-10-17 10:45:07,855 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-10-17 10:45:07,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 543 events. 1/543 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 3/518 useless extension candidates. Maximal degree in co-relation 268. Up to 16 conditions per place. [2022-10-17 10:45:07,857 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 25 selfloop transitions, 30 changer transitions 0/543 dead transitions. [2022-10-17 10:45:07,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 543 transitions, 1456 flow [2022-10-17 10:45:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-17 10:45:07,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-10-17 10:45:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 15088 transitions. [2022-10-17 10:45:07,898 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9784695201037613 [2022-10-17 10:45:07,899 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 15088 transitions. [2022-10-17 10:45:07,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 15088 transitions. [2022-10-17 10:45:07,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:07,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 15088 transitions. [2022-10-17 10:45:07,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 502.93333333333334) internal successors, (15088), 30 states have internal predecessors, (15088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:07,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 514.0) internal successors, (15934), 31 states have internal predecessors, (15934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:07,980 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 514.0) internal successors, (15934), 31 states have internal predecessors, (15934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:07,981 INFO L175 Difference]: Start difference. First operand has 535 places, 517 transitions, 1206 flow. Second operand 30 states and 15088 transitions. [2022-10-17 10:45:07,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 543 transitions, 1456 flow [2022-10-17 10:45:07,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 543 transitions, 1406 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:45:07,997 INFO L231 Difference]: Finished difference. Result has 563 places, 527 transitions, 1308 flow [2022-10-17 10:45:07,999 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1308, PETRI_PLACES=563, PETRI_TRANSITIONS=527} [2022-10-17 10:45:07,999 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 51 predicate places. [2022-10-17 10:45:08,000 INFO L495 AbstractCegarLoop]: Abstraction has has 563 places, 527 transitions, 1308 flow [2022-10-17 10:45:08,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 503.39130434782606) internal successors, (11578), 23 states have internal predecessors, (11578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:08,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:08,004 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:08,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:08,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dad0596-190a-46da-a068-574161f86c3f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-17 10:45:08,231 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:08,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:08,231 INFO L85 PathProgramCache]: Analyzing trace with hash 357116480, now seen corresponding path program 2 times [2022-10-17 10:45:08,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:08,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619096290] [2022-10-17 10:45:08,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:08,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:08,918 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-17 10:45:08,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:08,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619096290] [2022-10-17 10:45:08,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619096290] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:08,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:08,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:08,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701509350] [2022-10-17 10:45:08,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:08,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:08,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:08,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:08,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:08,924 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 514 [2022-10-17 10:45:08,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 527 transitions, 1308 flow. Second operand has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:08,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:08,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 514 [2022-10-17 10:45:08,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:10,255 INFO L130 PetriNetUnfolder]: 778/2698 cut-off events. [2022-10-17 10:45:10,255 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-10-17 10:45:10,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4645 conditions, 2698 events. 778/2698 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13777 event pairs, 777 based on Foata normal form. 0/2413 useless extension candidates. Maximal degree in co-relation 4422. Up to 1779 conditions per place. [2022-10-17 10:45:10,275 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 224 selfloop transitions, 5 changer transitions 0/526 dead transitions. [2022-10-17 10:45:10,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 526 transitions, 1764 flow [2022-10-17 10:45:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:10,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:45:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1850 transitions. [2022-10-17 10:45:10,282 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5998702983138781 [2022-10-17 10:45:10,282 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1850 transitions. [2022-10-17 10:45:10,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1850 transitions. [2022-10-17 10:45:10,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:10,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1850 transitions. [2022-10-17 10:45:10,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:10,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:10,294 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:10,294 INFO L175 Difference]: Start difference. First operand has 563 places, 527 transitions, 1308 flow. Second operand 6 states and 1850 transitions. [2022-10-17 10:45:10,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 526 transitions, 1764 flow [2022-10-17 10:45:10,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 526 transitions, 1718 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-10-17 10:45:10,310 INFO L231 Difference]: Finished difference. Result has 549 places, 526 transitions, 1270 flow [2022-10-17 10:45:10,312 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1270, PETRI_PLACES=549, PETRI_TRANSITIONS=526} [2022-10-17 10:45:10,313 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 37 predicate places. [2022-10-17 10:45:10,313 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 526 transitions, 1270 flow [2022-10-17 10:45:10,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:10,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:10,314 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:10,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:45:10,314 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:10,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:10,315 INFO L85 PathProgramCache]: Analyzing trace with hash -688081602, now seen corresponding path program 1 times [2022-10-17 10:45:10,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:10,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805616706] [2022-10-17 10:45:10,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:10,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,282 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-17 10:45:11,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:11,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805616706] [2022-10-17 10:45:11,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805616706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:11,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:11,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:11,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282656673] [2022-10-17 10:45:11,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:11,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:11,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:11,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:11,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:11,288 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 514 [2022-10-17 10:45:11,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 526 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 278.1666666666667) internal successors, (1669), 6 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:11,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 514 [2022-10-17 10:45:11,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:13,385 INFO L130 PetriNetUnfolder]: 1388/4415 cut-off events. [2022-10-17 10:45:13,385 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-10-17 10:45:13,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7616 conditions, 4415 events. 1388/4415 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28999 event pairs, 110 based on Foata normal form. 0/3961 useless extension candidates. Maximal degree in co-relation 7414. Up to 1934 conditions per place. [2022-10-17 10:45:13,425 INFO L137 encePairwiseOnDemand]: 480/514 looper letters, 311 selfloop transitions, 79 changer transitions 0/689 dead transitions. [2022-10-17 10:45:13,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 689 transitions, 2376 flow [2022-10-17 10:45:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:45:13,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2025 transitions. [2022-10-17 10:45:13,433 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6566147859922179 [2022-10-17 10:45:13,433 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2025 transitions. [2022-10-17 10:45:13,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2025 transitions. [2022-10-17 10:45:13,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:13,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2025 transitions. [2022-10-17 10:45:13,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 337.5) internal successors, (2025), 6 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:13,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:13,446 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:13,446 INFO L175 Difference]: Start difference. First operand has 549 places, 526 transitions, 1270 flow. Second operand 6 states and 2025 transitions. [2022-10-17 10:45:13,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 689 transitions, 2376 flow [2022-10-17 10:45:13,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 689 transitions, 2366 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:45:13,468 INFO L231 Difference]: Finished difference. Result has 552 places, 592 transitions, 1750 flow [2022-10-17 10:45:13,469 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1750, PETRI_PLACES=552, PETRI_TRANSITIONS=592} [2022-10-17 10:45:13,470 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 40 predicate places. [2022-10-17 10:45:13,470 INFO L495 AbstractCegarLoop]: Abstraction has has 552 places, 592 transitions, 1750 flow [2022-10-17 10:45:13,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.1666666666667) internal successors, (1669), 6 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:13,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:13,471 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:13,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:45:13,472 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1256124734, now seen corresponding path program 1 times [2022-10-17 10:45:13,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:13,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291656317] [2022-10-17 10:45:13,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:13,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-17 10:45:14,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:14,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291656317] [2022-10-17 10:45:14,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291656317] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:14,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:14,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:14,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516714396] [2022-10-17 10:45:14,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:14,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:14,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:14,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:14,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:14,322 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 514 [2022-10-17 10:45:14,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 592 transitions, 1750 flow. Second operand has 6 states, 6 states have (on average 277.3333333333333) internal successors, (1664), 6 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:14,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:14,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 514 [2022-10-17 10:45:14,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:16,469 INFO L130 PetriNetUnfolder]: 1207/4239 cut-off events. [2022-10-17 10:45:16,469 INFO L131 PetriNetUnfolder]: For 1430/1526 co-relation queries the response was YES. [2022-10-17 10:45:16,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8471 conditions, 4239 events. 1207/4239 cut-off events. For 1430/1526 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27502 event pairs, 807 based on Foata normal form. 0/3844 useless extension candidates. Maximal degree in co-relation 8268. Up to 2664 conditions per place. [2022-10-17 10:45:16,516 INFO L137 encePairwiseOnDemand]: 490/514 looper letters, 270 selfloop transitions, 20 changer transitions 0/588 dead transitions. [2022-10-17 10:45:16,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 588 transitions, 2322 flow [2022-10-17 10:45:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:16,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:45:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1852 transitions. [2022-10-17 10:45:16,524 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6005188067444877 [2022-10-17 10:45:16,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1852 transitions. [2022-10-17 10:45:16,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1852 transitions. [2022-10-17 10:45:16,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:16,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1852 transitions. [2022-10-17 10:45:16,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:16,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:16,535 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:16,535 INFO L175 Difference]: Start difference. First operand has 552 places, 592 transitions, 1750 flow. Second operand 6 states and 1852 transitions. [2022-10-17 10:45:16,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 588 transitions, 2322 flow [2022-10-17 10:45:16,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 588 transitions, 2322 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:45:16,560 INFO L231 Difference]: Finished difference. Result has 553 places, 588 transitions, 1782 flow [2022-10-17 10:45:16,561 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1742, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1782, PETRI_PLACES=553, PETRI_TRANSITIONS=588} [2022-10-17 10:45:16,562 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 41 predicate places. [2022-10-17 10:45:16,562 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 588 transitions, 1782 flow [2022-10-17 10:45:16,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.3333333333333) internal successors, (1664), 6 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:16,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:16,563 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:16,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:45:16,564 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:16,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:16,564 INFO L85 PathProgramCache]: Analyzing trace with hash -104921240, now seen corresponding path program 1 times [2022-10-17 10:45:16,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:16,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235244852] [2022-10-17 10:45:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:16,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:17,421 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-17 10:45:17,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:17,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235244852] [2022-10-17 10:45:17,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235244852] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:17,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:17,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:17,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258338253] [2022-10-17 10:45:17,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:17,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:17,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:17,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:17,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:17,426 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 514 [2022-10-17 10:45:17,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 588 transitions, 1782 flow. Second operand has 6 states, 6 states have (on average 270.5) internal successors, (1623), 6 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:17,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:17,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 514 [2022-10-17 10:45:17,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:19,178 INFO L130 PetriNetUnfolder]: 1207/4235 cut-off events. [2022-10-17 10:45:19,179 INFO L131 PetriNetUnfolder]: For 1430/1526 co-relation queries the response was YES. [2022-10-17 10:45:19,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8492 conditions, 4235 events. 1207/4235 cut-off events. For 1430/1526 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27446 event pairs, 807 based on Foata normal form. 0/3844 useless extension candidates. Maximal degree in co-relation 8288. Up to 2672 conditions per place. [2022-10-17 10:45:19,220 INFO L137 encePairwiseOnDemand]: 490/514 looper letters, 274 selfloop transitions, 20 changer transitions 0/584 dead transitions. [2022-10-17 10:45:19,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 584 transitions, 2362 flow [2022-10-17 10:45:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:45:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1808 transitions. [2022-10-17 10:45:19,229 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5862516212710766 [2022-10-17 10:45:19,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1808 transitions. [2022-10-17 10:45:19,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1808 transitions. [2022-10-17 10:45:19,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:19,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1808 transitions. [2022-10-17 10:45:19,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 301.3333333333333) internal successors, (1808), 6 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:19,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:19,238 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:19,238 INFO L175 Difference]: Start difference. First operand has 553 places, 588 transitions, 1782 flow. Second operand 6 states and 1808 transitions. [2022-10-17 10:45:19,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 584 transitions, 2362 flow [2022-10-17 10:45:19,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 584 transitions, 2322 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:45:19,260 INFO L231 Difference]: Finished difference. Result has 549 places, 584 transitions, 1774 flow [2022-10-17 10:45:19,262 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1734, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1774, PETRI_PLACES=549, PETRI_TRANSITIONS=584} [2022-10-17 10:45:19,263 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 37 predicate places. [2022-10-17 10:45:19,263 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 584 transitions, 1774 flow [2022-10-17 10:45:19,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.5) internal successors, (1623), 6 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:19,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:19,264 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:19,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:45:19,264 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:19,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:19,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1452609513, now seen corresponding path program 1 times [2022-10-17 10:45:19,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:19,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202802329] [2022-10-17 10:45:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:19,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-17 10:45:20,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:20,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202802329] [2022-10-17 10:45:20,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202802329] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:20,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:20,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:20,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982294094] [2022-10-17 10:45:20,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:20,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:20,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:20,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:20,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:20,018 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 514 [2022-10-17 10:45:20,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 584 transitions, 1774 flow. Second operand has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:20,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:20,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 514 [2022-10-17 10:45:20,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:45:21,998 INFO L130 PetriNetUnfolder]: 1207/4231 cut-off events. [2022-10-17 10:45:21,999 INFO L131 PetriNetUnfolder]: For 1438/1534 co-relation queries the response was YES. [2022-10-17 10:45:22,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8484 conditions, 4231 events. 1207/4231 cut-off events. For 1438/1534 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27462 event pairs, 807 based on Foata normal form. 0/3844 useless extension candidates. Maximal degree in co-relation 8280. Up to 2668 conditions per place. [2022-10-17 10:45:22,026 INFO L137 encePairwiseOnDemand]: 490/514 looper letters, 270 selfloop transitions, 20 changer transitions 0/580 dead transitions. [2022-10-17 10:45:22,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 580 transitions, 2346 flow [2022-10-17 10:45:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:45:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1804 transitions. [2022-10-17 10:45:22,030 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5849546044098574 [2022-10-17 10:45:22,030 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1804 transitions. [2022-10-17 10:45:22,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1804 transitions. [2022-10-17 10:45:22,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:22,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1804 transitions. [2022-10-17 10:45:22,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 300.6666666666667) internal successors, (1804), 6 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:22,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:22,041 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:22,041 INFO L175 Difference]: Start difference. First operand has 549 places, 584 transitions, 1774 flow. Second operand 6 states and 1804 transitions. [2022-10-17 10:45:22,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 580 transitions, 2346 flow [2022-10-17 10:45:22,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 580 transitions, 2306 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:45:22,062 INFO L231 Difference]: Finished difference. Result has 545 places, 580 transitions, 1766 flow [2022-10-17 10:45:22,063 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1726, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1766, PETRI_PLACES=545, PETRI_TRANSITIONS=580} [2022-10-17 10:45:22,064 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 33 predicate places. [2022-10-17 10:45:22,066 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 580 transitions, 1766 flow [2022-10-17 10:45:22,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:22,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:45:22,067 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:22,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:45:22,067 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-10-17 10:45:22,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:22,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1643369755, now seen corresponding path program 1 times [2022-10-17 10:45:22,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:22,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702921091] [2022-10-17 10:45:22,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-17 10:45:22,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:22,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702921091] [2022-10-17 10:45:22,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702921091] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:22,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:22,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:22,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233891055] [2022-10-17 10:45:22,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:22,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:22,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:22,946 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 514 [2022-10-17 10:45:22,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 580 transitions, 1766 flow. Second operand has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:22,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:45:22,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 514 [2022-10-17 10:45:22,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand