./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:27:10,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:27:10,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:27:10,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:27:10,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:27:10,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:27:10,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:27:10,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:27:10,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:27:10,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:27:10,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:27:10,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:27:10,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:27:10,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:27:10,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:27:10,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:27:10,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:27:10,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:27:10,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:27:10,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:27:10,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:27:10,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:27:10,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:27:10,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:27:10,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:27:10,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:27:10,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:27:10,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:27:10,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:27:10,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:27:10,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:27:10,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:27:10,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:27:10,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:27:10,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:27:10,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:27:10,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:27:10,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:27:10,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:27:10,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:27:10,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:27:10,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:27:10,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:27:10,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:27:10,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:27:10,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:27:10,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:27:10,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:27:10,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:27:10,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:27:10,625 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:27:10,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:27:10,626 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:27:10,626 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:27:10,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:27:10,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:27:10,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:27:10,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:27:10,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:27:10,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:27:10,628 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:27:10,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:27:10,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:27:10,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:27:10,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:27:10,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:27:10,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:27:10,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:27:10,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:10,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:27:10,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:27:10,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:27:10,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:27:10,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:27:10,633 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:27:10,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:27:10,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:27:10,634 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_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 [2022-11-16 11:27:10,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:27:10,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:27:10,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:27:10,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:27:10,986 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:27:10,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-16 11:27:11,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/data/f883821af/3782891311d94ce280468a773ed16e81/FLAGe7eca9a13 [2022-11-16 11:27:11,651 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:27:11,652 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-16 11:27:11,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/data/f883821af/3782891311d94ce280468a773ed16e81/FLAGe7eca9a13 [2022-11-16 11:27:11,989 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/data/f883821af/3782891311d94ce280468a773ed16e81 [2022-11-16 11:27:11,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:27:11,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:27:12,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:12,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:27:12,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:27:12,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:11" (1/1) ... [2022-11-16 11:27:12,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f67f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12, skipping insertion in model container [2022-11-16 11:27:12,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:11" (1/1) ... [2022-11-16 11:27:12,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:27:12,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:27:12,442 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-16 11:27:12,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:12,466 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:27:12,539 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-16 11:27:12,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:12,566 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:27:12,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12 WrapperNode [2022-11-16 11:27:12,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:12,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:12,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:27:12,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:27:12,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,698 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 799 [2022-11-16 11:27:12,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:12,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:27:12,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:27:12,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:27:12,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,760 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:27:12,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:27:12,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:27:12,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:27:12,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (1/1) ... [2022-11-16 11:27:12,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:12,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:12,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:27:12,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae629ce2-eec7-4c4e-bbae-49fe259462ac/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:27:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:27:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:27:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:27:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:27:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:27:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:27:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:27:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:27:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:27:12,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:27:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:27:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:27:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:27:12,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:27:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:27:12,912 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:27:13,164 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:27:13,167 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:27:14,787 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:27:14,822 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:27:14,823 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:27:14,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:14 BoogieIcfgContainer [2022-11-16 11:27:14,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:27:14,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:27:14,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:27:14,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:27:14,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:27:11" (1/3) ... [2022-11-16 11:27:14,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a4694f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:14, skipping insertion in model container [2022-11-16 11:27:14,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:12" (2/3) ... [2022-11-16 11:27:14,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a4694f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:14, skipping insertion in model container [2022-11-16 11:27:14,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:14" (3/3) ... [2022-11-16 11:27:14,840 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2022-11-16 11:27:14,851 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:27:14,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:27:14,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2022-11-16 11:27:14,865 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:27:15,162 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:27:15,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-16 11:27:15,964 INFO L130 PetriNetUnfolder]: 48/1052 cut-off events. [2022-11-16 11:27:15,965 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:27:15,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 1052 events. 48/1052 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2224 event pairs, 0 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-16 11:27:15,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-16 11:27:16,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 991 places, 1026 transitions, 2070 flow [2022-11-16 11:27:16,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:27:16,051 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;@d064200, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:27:16,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2022-11-16 11:27:16,058 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-16 11:27:16,059 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:16,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:16,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:16,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:16,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:16,069 INFO L85 PathProgramCache]: Analyzing trace with hash 250335609, now seen corresponding path program 1 times [2022-11-16 11:27:16,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:16,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971179959] [2022-11-16 11:27:16,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:16,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:16,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971179959] [2022-11-16 11:27:16,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971179959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:16,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:16,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:16,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885392030] [2022-11-16 11:27:16,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:16,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:16,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:16,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:16,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:16,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-16 11:27:16,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 991 places, 1026 transitions, 2070 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:16,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:16,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-16 11:27:16,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:19,357 INFO L130 PetriNetUnfolder]: 379/5191 cut-off events. [2022-11-16 11:27:19,357 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-11-16 11:27:19,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5958 conditions, 5191 events. 379/5191 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 43548 event pairs, 279 based on Foata normal form. 171/4395 useless extension candidates. Maximal degree in co-relation 5211. Up to 522 conditions per place. [2022-11-16 11:27:19,498 INFO L137 encePairwiseOnDemand]: 1024/1055 looper letters, 39 selfloop transitions, 2 changer transitions 16/997 dead transitions. [2022-11-16 11:27:19,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 992 places, 997 transitions, 2094 flow [2022-11-16 11:27:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:19,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3019 transitions. [2022-11-16 11:27:19,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.953870458135861 [2022-11-16 11:27:19,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3019 transitions. [2022-11-16 11:27:19,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3019 transitions. [2022-11-16 11:27:19,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:19,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3019 transitions. [2022-11-16 11:27:19,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.3333333333334) internal successors, (3019), 3 states have internal predecessors, (3019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:19,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:19,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:19,590 INFO L175 Difference]: Start difference. First operand has 991 places, 1026 transitions, 2070 flow. Second operand 3 states and 3019 transitions. [2022-11-16 11:27:19,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 992 places, 997 transitions, 2094 flow [2022-11-16 11:27:19,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 986 places, 997 transitions, 2082 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:27:19,636 INFO L231 Difference]: Finished difference. Result has 986 places, 981 transitions, 1972 flow [2022-11-16 11:27:19,641 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=2000, PETRI_DIFFERENCE_MINUEND_PLACES=984, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=997, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=995, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1972, PETRI_PLACES=986, PETRI_TRANSITIONS=981} [2022-11-16 11:27:19,647 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -5 predicate places. [2022-11-16 11:27:19,648 INFO L495 AbstractCegarLoop]: Abstraction has has 986 places, 981 transitions, 1972 flow [2022-11-16 11:27:19,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:19,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:19,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:19,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:27:19,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:19,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:19,653 INFO L85 PathProgramCache]: Analyzing trace with hash 743606059, now seen corresponding path program 1 times [2022-11-16 11:27:19,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:19,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352606207] [2022-11-16 11:27:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:19,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:19,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:19,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352606207] [2022-11-16 11:27:19,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352606207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:19,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:19,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:19,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146536467] [2022-11-16 11:27:19,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:19,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:19,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:19,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:19,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-16 11:27:19,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 981 transitions, 1972 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:19,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:19,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-16 11:27:19,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:21,811 INFO L130 PetriNetUnfolder]: 212/3982 cut-off events. [2022-11-16 11:27:21,812 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-16 11:27:21,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4303 conditions, 3982 events. 212/3982 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 30041 event pairs, 132 based on Foata normal form. 0/3334 useless extension candidates. Maximal degree in co-relation 4256. Up to 257 conditions per place. [2022-11-16 11:27:21,922 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/971 dead transitions. [2022-11-16 11:27:21,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 971 transitions, 2008 flow [2022-11-16 11:27:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-16 11:27:21,931 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-16 11:27:21,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-16 11:27:21,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-16 11:27:21,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:21,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-16 11:27:21,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:21,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:21,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:21,956 INFO L175 Difference]: Start difference. First operand has 986 places, 981 transitions, 1972 flow. Second operand 3 states and 2996 transitions. [2022-11-16 11:27:21,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 971 transitions, 2008 flow [2022-11-16 11:27:21,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 971 transitions, 2004 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:21,980 INFO L231 Difference]: Finished difference. Result has 960 places, 971 transitions, 1950 flow [2022-11-16 11:27:21,982 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1948, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1950, PETRI_PLACES=960, PETRI_TRANSITIONS=971} [2022-11-16 11:27:21,983 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-16 11:27:21,983 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 971 transitions, 1950 flow [2022-11-16 11:27:21,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:21,986 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:21,986 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:21,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:27:21,987 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:21,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:21,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1543466916, now seen corresponding path program 1 times [2022-11-16 11:27:21,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:21,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393355887] [2022-11-16 11:27:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:22,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:22,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393355887] [2022-11-16 11:27:22,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393355887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:22,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:22,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:22,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708965338] [2022-11-16 11:27:22,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:22,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:22,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:22,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:22,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-16 11:27:22,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 971 transitions, 1950 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:22,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:22,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-16 11:27:22,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:23,730 INFO L130 PetriNetUnfolder]: 187/3345 cut-off events. [2022-11-16 11:27:23,731 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-16 11:27:23,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3650 conditions, 3345 events. 187/3345 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 22446 event pairs, 117 based on Foata normal form. 0/2754 useless extension candidates. Maximal degree in co-relation 3604. Up to 279 conditions per place. [2022-11-16 11:27:23,855 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2022-11-16 11:27:23,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 970 transitions, 2030 flow [2022-11-16 11:27:23,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-16 11:27:23,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-16 11:27:23,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-16 11:27:23,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-16 11:27:23,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:23,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-16 11:27:23,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:23,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:23,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:23,890 INFO L175 Difference]: Start difference. First operand has 960 places, 971 transitions, 1950 flow. Second operand 3 states and 2991 transitions. [2022-11-16 11:27:23,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 970 transitions, 2030 flow [2022-11-16 11:27:23,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 970 transitions, 2029 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:23,911 INFO L231 Difference]: Finished difference. Result has 960 places, 970 transitions, 1951 flow [2022-11-16 11:27:23,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=960, PETRI_TRANSITIONS=970} [2022-11-16 11:27:23,916 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-16 11:27:23,916 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 970 transitions, 1951 flow [2022-11-16 11:27:23,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:23,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:23,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:23,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:27:23,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:23,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:23,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1841446441, now seen corresponding path program 1 times [2022-11-16 11:27:23,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:23,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89611534] [2022-11-16 11:27:23,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:23,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:24,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:24,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89611534] [2022-11-16 11:27:24,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89611534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:24,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:24,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:24,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806277164] [2022-11-16 11:27:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:24,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:24,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:24,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:24,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:24,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-16 11:27:24,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 970 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:24,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:24,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-16 11:27:24,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:25,475 INFO L130 PetriNetUnfolder]: 119/2776 cut-off events. [2022-11-16 11:27:25,475 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-16 11:27:25,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 2776 events. 119/2776 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16735 event pairs, 60 based on Foata normal form. 0/2346 useless extension candidates. Maximal degree in co-relation 2903. Up to 149 conditions per place. [2022-11-16 11:27:25,586 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/960 dead transitions. [2022-11-16 11:27:25,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 960 transitions, 1987 flow [2022-11-16 11:27:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-16 11:27:25,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-16 11:27:25,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-16 11:27:25,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-16 11:27:25,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:25,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-16 11:27:25,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:25,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:25,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:25,626 INFO L175 Difference]: Start difference. First operand has 960 places, 970 transitions, 1951 flow. Second operand 3 states and 2996 transitions. [2022-11-16 11:27:25,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 960 transitions, 1987 flow [2022-11-16 11:27:25,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 960 transitions, 1983 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:25,653 INFO L231 Difference]: Finished difference. Result has 950 places, 960 transitions, 1929 flow [2022-11-16 11:27:25,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=950, PETRI_TRANSITIONS=960} [2022-11-16 11:27:25,657 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-16 11:27:25,657 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 960 transitions, 1929 flow [2022-11-16 11:27:25,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:25,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:25,669 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:25,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:27:25,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:25,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1934777423, now seen corresponding path program 1 times [2022-11-16 11:27:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:25,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326368045] [2022-11-16 11:27:25,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:25,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:25,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:25,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326368045] [2022-11-16 11:27:25,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326368045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:25,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:25,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:25,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944571322] [2022-11-16 11:27:25,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:25,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:25,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:25,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:25,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:25,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-16 11:27:25,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 960 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:25,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:25,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-16 11:27:25,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:27,761 INFO L130 PetriNetUnfolder]: 399/4762 cut-off events. [2022-11-16 11:27:27,761 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-16 11:27:27,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5329 conditions, 4762 events. 399/4762 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 40217 event pairs, 279 based on Foata normal form. 0/3935 useless extension candidates. Maximal degree in co-relation 5283. Up to 549 conditions per place. [2022-11-16 11:27:27,863 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2022-11-16 11:27:27,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 959 transitions, 2009 flow [2022-11-16 11:27:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-16 11:27:27,871 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-16 11:27:27,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-16 11:27:27,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-16 11:27:27,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:27,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-16 11:27:27,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:27,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:27,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:27,891 INFO L175 Difference]: Start difference. First operand has 950 places, 960 transitions, 1929 flow. Second operand 3 states and 2991 transitions. [2022-11-16 11:27:27,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 959 transitions, 2009 flow [2022-11-16 11:27:27,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 959 transitions, 2008 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:27,911 INFO L231 Difference]: Finished difference. Result has 950 places, 959 transitions, 1930 flow [2022-11-16 11:27:27,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1930, PETRI_PLACES=950, PETRI_TRANSITIONS=959} [2022-11-16 11:27:27,916 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-16 11:27:27,917 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 959 transitions, 1930 flow [2022-11-16 11:27:27,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:27,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:27,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:27,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:27:27,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:27,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1958031148, now seen corresponding path program 1 times [2022-11-16 11:27:27,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:27,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792629631] [2022-11-16 11:27:27,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:27,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:28,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:28,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792629631] [2022-11-16 11:27:28,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792629631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:28,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:28,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:28,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757879368] [2022-11-16 11:27:28,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:28,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:28,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:28,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:28,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:28,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-16 11:27:28,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 959 transitions, 1930 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:28,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:28,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-16 11:27:28,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:29,536 INFO L130 PetriNetUnfolder]: 226/3719 cut-off events. [2022-11-16 11:27:29,536 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-16 11:27:29,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 3719 events. 226/3719 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27176 event pairs, 132 based on Foata normal form. 0/3164 useless extension candidates. Maximal degree in co-relation 3966. Up to 274 conditions per place. [2022-11-16 11:27:29,597 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/949 dead transitions. [2022-11-16 11:27:29,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 949 transitions, 1966 flow [2022-11-16 11:27:29,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:29,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-16 11:27:29,606 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-16 11:27:29,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-16 11:27:29,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-16 11:27:29,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:29,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-16 11:27:29,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:29,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:29,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:29,626 INFO L175 Difference]: Start difference. First operand has 950 places, 959 transitions, 1930 flow. Second operand 3 states and 2996 transitions. [2022-11-16 11:27:29,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 949 transitions, 1966 flow [2022-11-16 11:27:29,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 949 transitions, 1962 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:29,646 INFO L231 Difference]: Finished difference. Result has 940 places, 949 transitions, 1908 flow [2022-11-16 11:27:29,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1906, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1908, PETRI_PLACES=940, PETRI_TRANSITIONS=949} [2022-11-16 11:27:29,649 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-16 11:27:29,649 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 949 transitions, 1908 flow [2022-11-16 11:27:29,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:29,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:29,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:29,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:27:29,652 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:29,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:29,652 INFO L85 PathProgramCache]: Analyzing trace with hash -243095769, now seen corresponding path program 1 times [2022-11-16 11:27:29,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:29,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327040114] [2022-11-16 11:27:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:29,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:29,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:29,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:29,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327040114] [2022-11-16 11:27:29,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327040114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:29,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:29,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:29,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598244636] [2022-11-16 11:27:29,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:29,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:29,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:29,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:29,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:29,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 1055 [2022-11-16 11:27:29,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 949 transitions, 1908 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:29,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:29,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 1055 [2022-11-16 11:27:29,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:30,238 INFO L130 PetriNetUnfolder]: 29/1284 cut-off events. [2022-11-16 11:27:30,238 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-16 11:27:30,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 1284 events. 29/1284 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3677 event pairs, 6 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1282. Up to 28 conditions per place. [2022-11-16 11:27:30,266 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 15 selfloop transitions, 2 changer transitions 0/948 dead transitions. [2022-11-16 11:27:30,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 948 transitions, 1940 flow [2022-11-16 11:27:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:30,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2022-11-16 11:27:30,275 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601895734597157 [2022-11-16 11:27:30,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3039 transitions. [2022-11-16 11:27:30,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3039 transitions. [2022-11-16 11:27:30,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:30,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3039 transitions. [2022-11-16 11:27:30,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1013.0) internal successors, (3039), 3 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:30,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:30,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:30,294 INFO L175 Difference]: Start difference. First operand has 940 places, 949 transitions, 1908 flow. Second operand 3 states and 3039 transitions. [2022-11-16 11:27:30,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 948 transitions, 1940 flow [2022-11-16 11:27:30,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 948 transitions, 1939 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:30,313 INFO L231 Difference]: Finished difference. Result has 940 places, 948 transitions, 1909 flow [2022-11-16 11:27:30,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1909, PETRI_PLACES=940, PETRI_TRANSITIONS=948} [2022-11-16 11:27:30,316 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-16 11:27:30,316 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 948 transitions, 1909 flow [2022-11-16 11:27:30,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:30,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:30,318 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:30,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:27:30,318 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:30,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash -81760298, now seen corresponding path program 1 times [2022-11-16 11:27:30,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:30,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988402203] [2022-11-16 11:27:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:30,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:30,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:30,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988402203] [2022-11-16 11:27:30,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988402203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:30,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:30,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:30,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32454479] [2022-11-16 11:27:30,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:30,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:30,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:30,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:30,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:30,424 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:30,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 948 transitions, 1909 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:30,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:30,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:30,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:30,968 INFO L130 PetriNetUnfolder]: 47/1527 cut-off events. [2022-11-16 11:27:30,968 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:27:30,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1527 events. 47/1527 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6629 event pairs, 18 based on Foata normal form. 0/1324 useless extension candidates. Maximal degree in co-relation 1566. Up to 55 conditions per place. [2022-11-16 11:27:30,995 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/947 dead transitions. [2022-11-16 11:27:30,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 947 transitions, 1947 flow [2022-11-16 11:27:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:30,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:31,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-16 11:27:31,005 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-16 11:27:31,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-16 11:27:31,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-16 11:27:31,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:31,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-16 11:27:31,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,030 INFO L175 Difference]: Start difference. First operand has 940 places, 948 transitions, 1909 flow. Second operand 3 states and 3033 transitions. [2022-11-16 11:27:31,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 947 transitions, 1947 flow [2022-11-16 11:27:31,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 947 transitions, 1943 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:31,055 INFO L231 Difference]: Finished difference. Result has 939 places, 947 transitions, 1907 flow [2022-11-16 11:27:31,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1907, PETRI_PLACES=939, PETRI_TRANSITIONS=947} [2022-11-16 11:27:31,058 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -52 predicate places. [2022-11-16 11:27:31,058 INFO L495 AbstractCegarLoop]: Abstraction has has 939 places, 947 transitions, 1907 flow [2022-11-16 11:27:31,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:31,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:31,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:27:31,061 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:31,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:31,062 INFO L85 PathProgramCache]: Analyzing trace with hash -53478059, now seen corresponding path program 1 times [2022-11-16 11:27:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:31,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192878067] [2022-11-16 11:27:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:31,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:31,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192878067] [2022-11-16 11:27:31,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192878067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:31,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:31,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:31,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619361461] [2022-11-16 11:27:31,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:31,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:31,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:31,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:31,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:31,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:31,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 947 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:31,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:31,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:31,807 INFO L130 PetriNetUnfolder]: 47/1488 cut-off events. [2022-11-16 11:27:31,808 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-16 11:27:31,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 1488 events. 47/1488 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6121 event pairs, 18 based on Foata normal form. 0/1292 useless extension candidates. Maximal degree in co-relation 1527. Up to 55 conditions per place. [2022-11-16 11:27:31,853 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/946 dead transitions. [2022-11-16 11:27:31,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 946 transitions, 1945 flow [2022-11-16 11:27:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-16 11:27:31,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-16 11:27:31,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-16 11:27:31,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-16 11:27:31,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:31,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-16 11:27:31,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,886 INFO L175 Difference]: Start difference. First operand has 939 places, 947 transitions, 1907 flow. Second operand 3 states and 3033 transitions. [2022-11-16 11:27:31,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 946 transitions, 1945 flow [2022-11-16 11:27:31,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 938 places, 946 transitions, 1941 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:31,912 INFO L231 Difference]: Finished difference. Result has 938 places, 946 transitions, 1905 flow [2022-11-16 11:27:31,914 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1901, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1905, PETRI_PLACES=938, PETRI_TRANSITIONS=946} [2022-11-16 11:27:31,915 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -53 predicate places. [2022-11-16 11:27:31,915 INFO L495 AbstractCegarLoop]: Abstraction has has 938 places, 946 transitions, 1905 flow [2022-11-16 11:27:31,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,917 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:31,918 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:31,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:27:31,918 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:31,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:31,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1667769144, now seen corresponding path program 1 times [2022-11-16 11:27:31,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:31,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207654179] [2022-11-16 11:27:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:31,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:31,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:31,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207654179] [2022-11-16 11:27:31,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207654179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:31,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:31,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:31,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060674316] [2022-11-16 11:27:31,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:31,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:31,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:31,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:31,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:31,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 946 transitions, 1905 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:31,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:31,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:32,417 INFO L130 PetriNetUnfolder]: 26/1140 cut-off events. [2022-11-16 11:27:32,417 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-16 11:27:32,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1140 events. 26/1140 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3110 event pairs, 6 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1140. Up to 31 conditions per place. [2022-11-16 11:27:32,450 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/945 dead transitions. [2022-11-16 11:27:32,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 945 transitions, 1943 flow [2022-11-16 11:27:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-16 11:27:32,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-16 11:27:32,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-16 11:27:32,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-16 11:27:32,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:32,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-16 11:27:32,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:32,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:32,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:32,477 INFO L175 Difference]: Start difference. First operand has 938 places, 946 transitions, 1905 flow. Second operand 3 states and 3033 transitions. [2022-11-16 11:27:32,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 939 places, 945 transitions, 1943 flow [2022-11-16 11:27:32,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 945 transitions, 1939 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:32,499 INFO L231 Difference]: Finished difference. Result has 937 places, 945 transitions, 1903 flow [2022-11-16 11:27:32,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1899, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1903, PETRI_PLACES=937, PETRI_TRANSITIONS=945} [2022-11-16 11:27:32,503 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -54 predicate places. [2022-11-16 11:27:32,503 INFO L495 AbstractCegarLoop]: Abstraction has has 937 places, 945 transitions, 1903 flow [2022-11-16 11:27:32,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:32,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:32,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:32,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:27:32,506 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:32,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:32,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1198197824, now seen corresponding path program 1 times [2022-11-16 11:27:32,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:32,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608539244] [2022-11-16 11:27:32,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:32,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:32,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:32,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608539244] [2022-11-16 11:27:32,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608539244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:32,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:32,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:32,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764911942] [2022-11-16 11:27:32,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:32,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:32,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:32,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:32,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 945 transitions, 1903 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:32,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:32,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:32,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:33,068 INFO L130 PetriNetUnfolder]: 44/1383 cut-off events. [2022-11-16 11:27:33,069 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-16 11:27:33,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1383 events. 44/1383 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5289 event pairs, 18 based on Foata normal form. 0/1200 useless extension candidates. Maximal degree in co-relation 1413. Up to 55 conditions per place. [2022-11-16 11:27:33,101 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2022-11-16 11:27:33,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 944 transitions, 1941 flow [2022-11-16 11:27:33,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-16 11:27:33,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-16 11:27:33,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-16 11:27:33,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-16 11:27:33,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:33,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-16 11:27:33,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,131 INFO L175 Difference]: Start difference. First operand has 937 places, 945 transitions, 1903 flow. Second operand 3 states and 3033 transitions. [2022-11-16 11:27:33,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 944 transitions, 1941 flow [2022-11-16 11:27:33,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 944 transitions, 1937 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:33,157 INFO L231 Difference]: Finished difference. Result has 936 places, 944 transitions, 1901 flow [2022-11-16 11:27:33,159 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=936, PETRI_TRANSITIONS=944} [2022-11-16 11:27:33,159 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -55 predicate places. [2022-11-16 11:27:33,160 INFO L495 AbstractCegarLoop]: Abstraction has has 936 places, 944 transitions, 1901 flow [2022-11-16 11:27:33,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:33,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:33,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:27:33,163 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:33,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1496457004, now seen corresponding path program 1 times [2022-11-16 11:27:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:33,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697776158] [2022-11-16 11:27:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:33,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:33,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:33,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697776158] [2022-11-16 11:27:33,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697776158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:33,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:33,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:33,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675548926] [2022-11-16 11:27:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:33,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:33,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:33,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:33,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:33,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:33,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:33,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:33,754 INFO L130 PetriNetUnfolder]: 44/1344 cut-off events. [2022-11-16 11:27:33,754 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-16 11:27:33,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 1344 events. 44/1344 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5110 event pairs, 18 based on Foata normal form. 0/1168 useless extension candidates. Maximal degree in co-relation 1374. Up to 55 conditions per place. [2022-11-16 11:27:33,781 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2022-11-16 11:27:33,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 943 transitions, 1939 flow [2022-11-16 11:27:33,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-16 11:27:33,788 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-16 11:27:33,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-16 11:27:33,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-16 11:27:33,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:33,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-16 11:27:33,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,805 INFO L175 Difference]: Start difference. First operand has 936 places, 944 transitions, 1901 flow. Second operand 3 states and 3033 transitions. [2022-11-16 11:27:33,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 943 transitions, 1939 flow [2022-11-16 11:27:33,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 943 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:33,824 INFO L231 Difference]: Finished difference. Result has 935 places, 943 transitions, 1899 flow [2022-11-16 11:27:33,826 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=935, PETRI_TRANSITIONS=943} [2022-11-16 11:27:33,829 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -56 predicate places. [2022-11-16 11:27:33,829 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 943 transitions, 1899 flow [2022-11-16 11:27:33,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:33,831 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:27:33,832 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:33,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash -638805476, now seen corresponding path program 1 times [2022-11-16 11:27:33,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:33,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274661743] [2022-11-16 11:27:33,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:33,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:33,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:33,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274661743] [2022-11-16 11:27:33,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274661743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:33,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139928139] [2022-11-16 11:27:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:33,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:33,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:33,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:33,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:34,188 INFO L130 PetriNetUnfolder]: 23/976 cut-off events. [2022-11-16 11:27:34,189 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-16 11:27:34,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 976 events. 23/976 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2299 event pairs, 6 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 972. Up to 30 conditions per place. [2022-11-16 11:27:34,204 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 17 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2022-11-16 11:27:34,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 942 transitions, 1935 flow [2022-11-16 11:27:34,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:34,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3032 transitions. [2022-11-16 11:27:34,212 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9579778830963666 [2022-11-16 11:27:34,212 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3032 transitions. [2022-11-16 11:27:34,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3032 transitions. [2022-11-16 11:27:34,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:34,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3032 transitions. [2022-11-16 11:27:34,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1010.6666666666666) internal successors, (3032), 3 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,229 INFO L175 Difference]: Start difference. First operand has 935 places, 943 transitions, 1899 flow. Second operand 3 states and 3032 transitions. [2022-11-16 11:27:34,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 942 transitions, 1935 flow [2022-11-16 11:27:34,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 942 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:34,248 INFO L231 Difference]: Finished difference. Result has 934 places, 942 transitions, 1897 flow [2022-11-16 11:27:34,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=934, PETRI_TRANSITIONS=942} [2022-11-16 11:27:34,251 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -57 predicate places. [2022-11-16 11:27:34,251 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 942 transitions, 1897 flow [2022-11-16 11:27:34,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:34,253 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:34,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:27:34,254 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash 963197328, now seen corresponding path program 1 times [2022-11-16 11:27:34,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:34,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376021100] [2022-11-16 11:27:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:34,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376021100] [2022-11-16 11:27:34,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376021100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:34,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:34,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:34,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288292243] [2022-11-16 11:27:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:34,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:34,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:34,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:34,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:34,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:34,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:34,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:34,874 INFO L130 PetriNetUnfolder]: 41/1219 cut-off events. [2022-11-16 11:27:34,875 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-16 11:27:34,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1219 events. 41/1219 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3865 event pairs, 18 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1240. Up to 55 conditions per place. [2022-11-16 11:27:34,897 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2022-11-16 11:27:34,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 941 transitions, 1935 flow [2022-11-16 11:27:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:34,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:34,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-16 11:27:34,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-16 11:27:34,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-16 11:27:34,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-16 11:27:34,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:34,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-16 11:27:34,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,918 INFO L175 Difference]: Start difference. First operand has 934 places, 942 transitions, 1897 flow. Second operand 3 states and 3033 transitions. [2022-11-16 11:27:34,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 941 transitions, 1935 flow [2022-11-16 11:27:34,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 941 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:34,936 INFO L231 Difference]: Finished difference. Result has 933 places, 941 transitions, 1895 flow [2022-11-16 11:27:34,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=933, PETRI_TRANSITIONS=941} [2022-11-16 11:27:34,939 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -58 predicate places. [2022-11-16 11:27:34,939 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 941 transitions, 1895 flow [2022-11-16 11:27:34,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:34,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:34,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:34,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:27:34,941 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:34,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:34,941 INFO L85 PathProgramCache]: Analyzing trace with hash 252536436, now seen corresponding path program 1 times [2022-11-16 11:27:34,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:34,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010270095] [2022-11-16 11:27:34,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:34,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:34,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:34,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010270095] [2022-11-16 11:27:34,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010270095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:34,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:34,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:34,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622733325] [2022-11-16 11:27:34,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:34,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:34,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:34,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:34,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:35,001 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-16 11:27:35,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-16 11:27:35,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:35,403 INFO L130 PetriNetUnfolder]: 41/1180 cut-off events. [2022-11-16 11:27:35,403 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-16 11:27:35,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 1180 events. 41/1180 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3654 event pairs, 18 based on Foata normal form. 0/1034 useless extension candidates. Maximal degree in co-relation 1201. Up to 55 conditions per place. [2022-11-16 11:27:35,431 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2022-11-16 11:27:35,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 940 transitions, 1933 flow [2022-11-16 11:27:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:35,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-16 11:27:35,438 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-16 11:27:35,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-16 11:27:35,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-16 11:27:35,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:35,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-16 11:27:35,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,457 INFO L175 Difference]: Start difference. First operand has 933 places, 941 transitions, 1895 flow. Second operand 3 states and 3033 transitions. [2022-11-16 11:27:35,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 940 transitions, 1933 flow [2022-11-16 11:27:35,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 940 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:35,476 INFO L231 Difference]: Finished difference. Result has 932 places, 940 transitions, 1893 flow [2022-11-16 11:27:35,478 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=932, PETRI_TRANSITIONS=940} [2022-11-16 11:27:35,479 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -59 predicate places. [2022-11-16 11:27:35,479 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 940 transitions, 1893 flow [2022-11-16 11:27:35,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,481 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,483 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:35,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:27:35,484 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:35,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash -565249488, now seen corresponding path program 1 times [2022-11-16 11:27:35,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841004083] [2022-11-16 11:27:35,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841004083] [2022-11-16 11:27:35,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841004083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:35,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447317086] [2022-11-16 11:27:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:35,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:35,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1055 [2022-11-16 11:27:35,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1055 [2022-11-16 11:27:35,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:36,915 INFO L130 PetriNetUnfolder]: 191/3573 cut-off events. [2022-11-16 11:27:36,915 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 11:27:37,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3895 conditions, 3573 events. 191/3573 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 25549 event pairs, 132 based on Foata normal form. 0/3047 useless extension candidates. Maximal degree in co-relation 3849. Up to 256 conditions per place. [2022-11-16 11:27:37,042 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 21 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2022-11-16 11:27:37,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 939 transitions, 1937 flow [2022-11-16 11:27:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:37,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3027 transitions. [2022-11-16 11:27:37,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9563981042654028 [2022-11-16 11:27:37,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3027 transitions. [2022-11-16 11:27:37,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3027 transitions. [2022-11-16 11:27:37,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:37,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3027 transitions. [2022-11-16 11:27:37,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:37,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:37,067 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:37,068 INFO L175 Difference]: Start difference. First operand has 932 places, 940 transitions, 1893 flow. Second operand 3 states and 3027 transitions. [2022-11-16 11:27:37,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 939 transitions, 1937 flow [2022-11-16 11:27:37,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 939 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:37,097 INFO L231 Difference]: Finished difference. Result has 931 places, 939 transitions, 1891 flow [2022-11-16 11:27:37,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=931, PETRI_TRANSITIONS=939} [2022-11-16 11:27:37,099 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -60 predicate places. [2022-11-16 11:27:37,100 INFO L495 AbstractCegarLoop]: Abstraction has has 931 places, 939 transitions, 1891 flow [2022-11-16 11:27:37,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:37,101 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:37,101 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:37,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:27:37,102 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-16 11:27:37,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1831664488, now seen corresponding path program 1 times [2022-11-16 11:27:37,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:37,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377283139] [2022-11-16 11:27:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:37,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:38,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377283139] [2022-11-16 11:27:38,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377283139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:38,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:38,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:38,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834293450] [2022-11-16 11:27:38,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:38,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:38,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:38,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:38,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:38,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 851 out of 1055 [2022-11-16 11:27:38,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 939 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 852.8333333333334) internal successors, (5117), 6 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:38,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:38,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 851 of 1055 [2022-11-16 11:27:38,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand