./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:45:32,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:45:32,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:45:32,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:45:32,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:45:32,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:45:32,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:45:32,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:45:32,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:45:32,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:45:32,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:45:32,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:45:32,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:45:32,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:45:32,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:45:32,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:45:32,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:45:32,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:45:32,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:45:32,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:45:32,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:45:32,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:45:32,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:45:32,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:45:32,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:45:32,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:45:32,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:45:32,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:45:32,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:45:32,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:45:32,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:45:32,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:45:32,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:45:32,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:45:32,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:45:32,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:45:32,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:45:32,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:45:32,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:45:32,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:45:32,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:45:32,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:45:32,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:45:32,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:45:32,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:45:32,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:45:32,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:45:32,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:45:32,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:45:32,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:45:32,850 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:45:32,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:45:32,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:45:32,852 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:45:32,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:45:32,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:45:32,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:45:32,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:45:32,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:45:32,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:45:32,853 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:45:32,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:45:32,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:45:32,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:45:32,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:45:32,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:45:32,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:45:32,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:45:32,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:32,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:45:32,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:45:32,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:45:32,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:45:32,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:45:32,857 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:45:32,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:45:32,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:45:32,857 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_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f [2022-11-02 20:45:33,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:45:33,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:45:33,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:45:33,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:45:33,208 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:45:33,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2022-11-02 20:45:33,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/data/193ab2067/e886efdb9e03497f814de5977004a9d2/FLAG494c317ea [2022-11-02 20:45:33,751 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:45:33,752 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2022-11-02 20:45:33,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/data/193ab2067/e886efdb9e03497f814de5977004a9d2/FLAG494c317ea [2022-11-02 20:45:34,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/data/193ab2067/e886efdb9e03497f814de5977004a9d2 [2022-11-02 20:45:34,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:45:34,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:45:34,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:34,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:45:34,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:45:34,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7528ecba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34, skipping insertion in model container [2022-11-02 20:45:34,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:45:34,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:45:34,398 WARN L230 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_7df0de63-5f84-4089-a7ee-b2f3d92330ed/sv-benchmarks/c/weaver/chl-node-symm.wvr.c[3305,3318] [2022-11-02 20:45:34,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:34,423 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:45:34,469 WARN L230 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_7df0de63-5f84-4089-a7ee-b2f3d92330ed/sv-benchmarks/c/weaver/chl-node-symm.wvr.c[3305,3318] [2022-11-02 20:45:34,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:34,507 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:45:34,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34 WrapperNode [2022-11-02 20:45:34,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:34,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:34,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:45:34,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:45:34,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,612 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 558 [2022-11-02 20:45:34,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:34,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:45:34,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:45:34,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:45:34,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,672 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:45:34,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:45:34,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:45:34,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:45:34,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (1/1) ... [2022-11-02 20:45:34,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:34,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:34,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:34,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df0de63-5f84-4089-a7ee-b2f3d92330ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:45:34,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:45:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:45:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:45:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:45:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:45:34,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:45:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:45:34,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:45:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:45:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:45:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:45:34,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:45:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:45:34,851 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:45:35,023 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:45:35,025 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:45:36,252 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:45:36,268 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:45:36,268 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 20:45:36,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:36 BoogieIcfgContainer [2022-11-02 20:45:36,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:45:36,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:45:36,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:45:36,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:45:36,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:45:34" (1/3) ... [2022-11-02 20:45:36,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f757150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:36, skipping insertion in model container [2022-11-02 20:45:36,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:34" (2/3) ... [2022-11-02 20:45:36,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f757150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:36, skipping insertion in model container [2022-11-02 20:45:36,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:36" (3/3) ... [2022-11-02 20:45:36,291 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2022-11-02 20:45:36,301 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:45:36,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:45:36,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-02 20:45:36,313 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:45:36,502 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:45:36,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 708 places, 738 transitions, 1492 flow [2022-11-02 20:45:36,964 INFO L130 PetriNetUnfolder]: 37/736 cut-off events. [2022-11-02 20:45:36,965 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:45:36,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 736 events. 37/736 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1239 event pairs, 0 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 511. Up to 2 conditions per place. [2022-11-02 20:45:36,978 INFO L82 GeneralOperation]: Start removeDead. Operand has 708 places, 738 transitions, 1492 flow [2022-11-02 20:45:36,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 680 places, 707 transitions, 1426 flow [2022-11-02 20:45:37,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:45:37,012 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;@66fe06f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:45:37,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2022-11-02 20:45:37,018 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-02 20:45:37,019 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:45:37,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:37,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:37,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:37,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:37,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2035769063, now seen corresponding path program 1 times [2022-11-02 20:45:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:37,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581190922] [2022-11-02 20:45:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:37,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:37,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:37,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581190922] [2022-11-02 20:45:37,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581190922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:37,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:37,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:37,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230822038] [2022-11-02 20:45:37,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:37,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:37,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:37,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:37,435 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 738 [2022-11-02 20:45:37,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 707 transitions, 1426 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:37,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 738 [2022-11-02 20:45:37,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:38,451 INFO L130 PetriNetUnfolder]: 179/2692 cut-off events. [2022-11-02 20:45:38,452 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-11-02 20:45:38,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2974 conditions, 2692 events. 179/2692 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 17824 event pairs, 99 based on Foata normal form. 51/2219 useless extension candidates. Maximal degree in co-relation 2401. Up to 243 conditions per place. [2022-11-02 20:45:38,486 INFO L137 encePairwiseOnDemand]: 716/738 looper letters, 37 selfloop transitions, 2 changer transitions 11/687 dead transitions. [2022-11-02 20:45:38,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 687 transitions, 1464 flow [2022-11-02 20:45:38,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:38,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2090 transitions. [2022-11-02 20:45:38,519 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9439927732610659 [2022-11-02 20:45:38,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2090 transitions. [2022-11-02 20:45:38,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2090 transitions. [2022-11-02 20:45:38,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:38,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2090 transitions. [2022-11-02 20:45:38,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 696.6666666666666) internal successors, (2090), 3 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,558 INFO L175 Difference]: Start difference. First operand has 680 places, 707 transitions, 1426 flow. Second operand 3 states and 2090 transitions. [2022-11-02 20:45:38,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 687 transitions, 1464 flow [2022-11-02 20:45:38,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 677 places, 687 transitions, 1456 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:45:38,590 INFO L231 Difference]: Finished difference. Result has 677 places, 676 transitions, 1360 flow [2022-11-02 20:45:38,593 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1378, PETRI_DIFFERENCE_MINUEND_PLACES=675, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1360, PETRI_PLACES=677, PETRI_TRANSITIONS=676} [2022-11-02 20:45:38,598 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -3 predicate places. [2022-11-02 20:45:38,598 INFO L495 AbstractCegarLoop]: Abstraction has has 677 places, 676 transitions, 1360 flow [2022-11-02 20:45:38,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:38,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:38,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:45:38,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:38,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash -761689696, now seen corresponding path program 1 times [2022-11-02 20:45:38,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:38,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232656854] [2022-11-02 20:45:38,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:38,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:38,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:38,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:38,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232656854] [2022-11-02 20:45:38,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232656854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:38,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:38,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:38,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427817232] [2022-11-02 20:45:38,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:38,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:38,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:38,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:38,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:38,717 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 680 out of 738 [2022-11-02 20:45:38,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 677 places, 676 transitions, 1360 flow. Second operand has 3 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:38,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 680 of 738 [2022-11-02 20:45:38,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:39,362 INFO L130 PetriNetUnfolder]: 112/2144 cut-off events. [2022-11-02 20:45:39,362 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-02 20:45:39,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2284 conditions, 2144 events. 112/2144 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 12604 event pairs, 48 based on Foata normal form. 0/1789 useless extension candidates. Maximal degree in co-relation 2244. Up to 125 conditions per place. [2022-11-02 20:45:39,388 INFO L137 encePairwiseOnDemand]: 727/738 looper letters, 25 selfloop transitions, 1 changer transitions 0/666 dead transitions. [2022-11-02 20:45:39,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 666 transitions, 1392 flow [2022-11-02 20:45:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:39,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2076 transitions. [2022-11-02 20:45:39,393 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9376693766937669 [2022-11-02 20:45:39,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2076 transitions. [2022-11-02 20:45:39,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2076 transitions. [2022-11-02 20:45:39,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:39,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2076 transitions. [2022-11-02 20:45:39,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,409 INFO L175 Difference]: Start difference. First operand has 677 places, 676 transitions, 1360 flow. Second operand 3 states and 2076 transitions. [2022-11-02 20:45:39,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 666 transitions, 1392 flow [2022-11-02 20:45:39,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 666 transitions, 1388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:39,455 INFO L231 Difference]: Finished difference. Result has 656 places, 666 transitions, 1338 flow [2022-11-02 20:45:39,457 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=656, PETRI_TRANSITIONS=666} [2022-11-02 20:45:39,457 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -24 predicate places. [2022-11-02 20:45:39,458 INFO L495 AbstractCegarLoop]: Abstraction has has 656 places, 666 transitions, 1338 flow [2022-11-02 20:45:39,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:39,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:39,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:45:39,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash -533979454, now seen corresponding path program 1 times [2022-11-02 20:45:39,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:39,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133411409] [2022-11-02 20:45:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:39,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:39,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133411409] [2022-11-02 20:45:39,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133411409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:39,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:39,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:39,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348020672] [2022-11-02 20:45:39,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:39,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:39,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:39,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:39,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:39,523 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 738 [2022-11-02 20:45:39,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 666 transitions, 1338 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:39,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 738 [2022-11-02 20:45:39,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:40,296 INFO L130 PetriNetUnfolder]: 179/2680 cut-off events. [2022-11-02 20:45:40,296 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-02 20:45:40,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 2680 events. 179/2680 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 17526 event pairs, 99 based on Foata normal form. 0/2210 useless extension candidates. Maximal degree in co-relation 2905. Up to 248 conditions per place. [2022-11-02 20:45:40,325 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 37 selfloop transitions, 2 changer transitions 0/665 dead transitions. [2022-11-02 20:45:40,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 665 transitions, 1414 flow [2022-11-02 20:45:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:40,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2071 transitions. [2022-11-02 20:45:40,332 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9354110207768744 [2022-11-02 20:45:40,332 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2071 transitions. [2022-11-02 20:45:40,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2071 transitions. [2022-11-02 20:45:40,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:40,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2071 transitions. [2022-11-02 20:45:40,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 690.3333333333334) internal successors, (2071), 3 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:40,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:40,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:40,350 INFO L175 Difference]: Start difference. First operand has 656 places, 666 transitions, 1338 flow. Second operand 3 states and 2071 transitions. [2022-11-02 20:45:40,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 665 transitions, 1414 flow [2022-11-02 20:45:40,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 665 transitions, 1413 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:40,367 INFO L231 Difference]: Finished difference. Result has 656 places, 665 transitions, 1339 flow [2022-11-02 20:45:40,369 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1335, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=656, PETRI_TRANSITIONS=665} [2022-11-02 20:45:40,370 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -24 predicate places. [2022-11-02 20:45:40,370 INFO L495 AbstractCegarLoop]: Abstraction has has 656 places, 665 transitions, 1339 flow [2022-11-02 20:45:40,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:40,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:40,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:40,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:45:40,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:40,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:40,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1647310132, now seen corresponding path program 1 times [2022-11-02 20:45:40,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:40,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545487074] [2022-11-02 20:45:40,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:40,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:40,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:40,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545487074] [2022-11-02 20:45:40,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545487074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:40,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:40,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:40,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449713019] [2022-11-02 20:45:40,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:40,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:40,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:40,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:40,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:40,444 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 680 out of 738 [2022-11-02 20:45:40,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 665 transitions, 1339 flow. Second operand has 3 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:40,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:40,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 680 of 738 [2022-11-02 20:45:40,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:41,048 INFO L130 PetriNetUnfolder]: 112/2128 cut-off events. [2022-11-02 20:45:41,048 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-02 20:45:41,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2271 conditions, 2128 events. 112/2128 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 12380 event pairs, 48 based on Foata normal form. 0/1807 useless extension candidates. Maximal degree in co-relation 2233. Up to 127 conditions per place. [2022-11-02 20:45:41,073 INFO L137 encePairwiseOnDemand]: 727/738 looper letters, 25 selfloop transitions, 1 changer transitions 0/655 dead transitions. [2022-11-02 20:45:41,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 655 transitions, 1371 flow [2022-11-02 20:45:41,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2076 transitions. [2022-11-02 20:45:41,078 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9376693766937669 [2022-11-02 20:45:41,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2076 transitions. [2022-11-02 20:45:41,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2076 transitions. [2022-11-02 20:45:41,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:41,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2076 transitions. [2022-11-02 20:45:41,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,094 INFO L175 Difference]: Start difference. First operand has 656 places, 665 transitions, 1339 flow. Second operand 3 states and 2076 transitions. [2022-11-02 20:45:41,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 655 transitions, 1371 flow [2022-11-02 20:45:41,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 655 transitions, 1367 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:41,110 INFO L231 Difference]: Finished difference. Result has 646 places, 655 transitions, 1317 flow [2022-11-02 20:45:41,111 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1317, PETRI_PLACES=646, PETRI_TRANSITIONS=655} [2022-11-02 20:45:41,113 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -34 predicate places. [2022-11-02 20:45:41,119 INFO L495 AbstractCegarLoop]: Abstraction has has 646 places, 655 transitions, 1317 flow [2022-11-02 20:45:41,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:41,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:41,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:45:41,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:41,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:41,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1761214505, now seen corresponding path program 1 times [2022-11-02 20:45:41,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:41,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079595211] [2022-11-02 20:45:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:41,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:41,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:41,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079595211] [2022-11-02 20:45:41,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079595211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:41,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:41,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:41,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144134911] [2022-11-02 20:45:41,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:41,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:41,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:41,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:41,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:41,207 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:45:41,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 655 transitions, 1317 flow. Second operand has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:41,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:45:41,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:41,419 INFO L130 PetriNetUnfolder]: 22/830 cut-off events. [2022-11-02 20:45:41,420 INFO L131 PetriNetUnfolder]: For 2/5 co-relation queries the response was YES. [2022-11-02 20:45:41,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 830 events. 22/830 cut-off events. For 2/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1744 event pairs, 3 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 825. Up to 23 conditions per place. [2022-11-02 20:45:41,431 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 16 selfloop transitions, 2 changer transitions 0/654 dead transitions. [2022-11-02 20:45:41,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 654 transitions, 1351 flow [2022-11-02 20:45:41,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2022-11-02 20:45:41,436 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9543812104787714 [2022-11-02 20:45:41,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2022-11-02 20:45:41,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2022-11-02 20:45:41,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:41,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2022-11-02 20:45:41,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,451 INFO L175 Difference]: Start difference. First operand has 646 places, 655 transitions, 1317 flow. Second operand 3 states and 2113 transitions. [2022-11-02 20:45:41,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 654 transitions, 1351 flow [2022-11-02 20:45:41,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 654 transitions, 1350 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:41,464 INFO L231 Difference]: Finished difference. Result has 646 places, 654 transitions, 1318 flow [2022-11-02 20:45:41,466 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=646, PETRI_TRANSITIONS=654} [2022-11-02 20:45:41,466 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -34 predicate places. [2022-11-02 20:45:41,467 INFO L495 AbstractCegarLoop]: Abstraction has has 646 places, 654 transitions, 1318 flow [2022-11-02 20:45:41,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:41,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:41,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:45:41,469 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -378182504, now seen corresponding path program 1 times [2022-11-02 20:45:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:41,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656430817] [2022-11-02 20:45:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:41,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:41,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:41,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656430817] [2022-11-02 20:45:41,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656430817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:41,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:41,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:41,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109416523] [2022-11-02 20:45:41,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:41,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:41,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:41,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:41,527 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:45:41,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 654 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:41,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:45:41,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:41,762 INFO L130 PetriNetUnfolder]: 32/955 cut-off events. [2022-11-02 20:45:41,762 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:45:41,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 955 events. 32/955 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3177 event pairs, 9 based on Foata normal form. 0/831 useless extension candidates. Maximal degree in co-relation 970. Up to 35 conditions per place. [2022-11-02 20:45:41,777 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 16 selfloop transitions, 2 changer transitions 0/653 dead transitions. [2022-11-02 20:45:41,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 653 transitions, 1352 flow [2022-11-02 20:45:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2022-11-02 20:45:41,782 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9543812104787714 [2022-11-02 20:45:41,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2022-11-02 20:45:41,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2022-11-02 20:45:41,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:41,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2022-11-02 20:45:41,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,796 INFO L175 Difference]: Start difference. First operand has 646 places, 654 transitions, 1318 flow. Second operand 3 states and 2113 transitions. [2022-11-02 20:45:41,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 653 transitions, 1352 flow [2022-11-02 20:45:41,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 653 transitions, 1348 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:41,810 INFO L231 Difference]: Finished difference. Result has 645 places, 653 transitions, 1316 flow [2022-11-02 20:45:41,812 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1312, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1316, PETRI_PLACES=645, PETRI_TRANSITIONS=653} [2022-11-02 20:45:41,813 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -35 predicate places. [2022-11-02 20:45:41,813 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 653 transitions, 1316 flow [2022-11-02 20:45:41,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:41,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:41,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:45:41,816 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:41,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:41,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2071253742, now seen corresponding path program 1 times [2022-11-02 20:45:41,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:41,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138921458] [2022-11-02 20:45:41,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:41,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:41,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:41,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138921458] [2022-11-02 20:45:41,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138921458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:41,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:41,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:41,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439074113] [2022-11-02 20:45:41,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:41,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:41,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:41,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:41,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:41,922 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:45:41,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 653 transitions, 1316 flow. Second operand has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:41,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:45:41,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:42,140 INFO L130 PetriNetUnfolder]: 32/935 cut-off events. [2022-11-02 20:45:42,141 INFO L131 PetriNetUnfolder]: For 2/11 co-relation queries the response was YES. [2022-11-02 20:45:42,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 935 events. 32/935 cut-off events. For 2/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2884 event pairs, 9 based on Foata normal form. 0/815 useless extension candidates. Maximal degree in co-relation 950. Up to 35 conditions per place. [2022-11-02 20:45:42,154 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 16 selfloop transitions, 2 changer transitions 0/652 dead transitions. [2022-11-02 20:45:42,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 652 transitions, 1350 flow [2022-11-02 20:45:42,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2022-11-02 20:45:42,159 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9543812104787714 [2022-11-02 20:45:42,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2022-11-02 20:45:42,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2022-11-02 20:45:42,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:42,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2022-11-02 20:45:42,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,171 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,171 INFO L175 Difference]: Start difference. First operand has 645 places, 653 transitions, 1316 flow. Second operand 3 states and 2113 transitions. [2022-11-02 20:45:42,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 652 transitions, 1350 flow [2022-11-02 20:45:42,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 644 places, 652 transitions, 1346 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:42,184 INFO L231 Difference]: Finished difference. Result has 644 places, 652 transitions, 1314 flow [2022-11-02 20:45:42,185 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1314, PETRI_PLACES=644, PETRI_TRANSITIONS=652} [2022-11-02 20:45:42,186 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -36 predicate places. [2022-11-02 20:45:42,186 INFO L495 AbstractCegarLoop]: Abstraction has has 644 places, 652 transitions, 1314 flow [2022-11-02 20:45:42,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:42,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:42,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:45:42,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:42,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:42,189 INFO L85 PathProgramCache]: Analyzing trace with hash -314030009, now seen corresponding path program 1 times [2022-11-02 20:45:42,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:42,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555561691] [2022-11-02 20:45:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:42,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:42,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:42,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555561691] [2022-11-02 20:45:42,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555561691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:42,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:42,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:42,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682054681] [2022-11-02 20:45:42,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:42,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:42,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:42,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:42,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:42,239 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:45:42,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 652 transitions, 1314 flow. Second operand has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:42,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:45:42,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:42,393 INFO L130 PetriNetUnfolder]: 18/669 cut-off events. [2022-11-02 20:45:42,393 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-02 20:45:42,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 669 events. 18/669 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1228 event pairs, 3 based on Foata normal form. 0/593 useless extension candidates. Maximal degree in co-relation 662. Up to 22 conditions per place. [2022-11-02 20:45:42,404 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 15 selfloop transitions, 2 changer transitions 0/651 dead transitions. [2022-11-02 20:45:42,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 651 transitions, 1346 flow [2022-11-02 20:45:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2112 transitions. [2022-11-02 20:45:42,410 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9539295392953929 [2022-11-02 20:45:42,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2112 transitions. [2022-11-02 20:45:42,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2112 transitions. [2022-11-02 20:45:42,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:42,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2112 transitions. [2022-11-02 20:45:42,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.0) internal successors, (2112), 3 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,422 INFO L175 Difference]: Start difference. First operand has 644 places, 652 transitions, 1314 flow. Second operand 3 states and 2112 transitions. [2022-11-02 20:45:42,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 645 places, 651 transitions, 1346 flow [2022-11-02 20:45:42,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 643 places, 651 transitions, 1342 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:42,435 INFO L231 Difference]: Finished difference. Result has 643 places, 651 transitions, 1312 flow [2022-11-02 20:45:42,437 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=641, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1312, PETRI_PLACES=643, PETRI_TRANSITIONS=651} [2022-11-02 20:45:42,437 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -37 predicate places. [2022-11-02 20:45:42,438 INFO L495 AbstractCegarLoop]: Abstraction has has 643 places, 651 transitions, 1312 flow [2022-11-02 20:45:42,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:42,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:42,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:45:42,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:42,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:42,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1721191854, now seen corresponding path program 1 times [2022-11-02 20:45:42,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:42,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468310616] [2022-11-02 20:45:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:42,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:42,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:42,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468310616] [2022-11-02 20:45:42,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468310616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:42,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:42,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:42,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417418295] [2022-11-02 20:45:42,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:42,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:42,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:42,489 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:45:42,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 643 places, 651 transitions, 1312 flow. Second operand has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:42,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:45:42,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:42,675 INFO L130 PetriNetUnfolder]: 28/794 cut-off events. [2022-11-02 20:45:42,675 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-02 20:45:42,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 794 events. 28/794 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1908 event pairs, 9 based on Foata normal form. 0/691 useless extension candidates. Maximal degree in co-relation 800. Up to 35 conditions per place. [2022-11-02 20:45:42,686 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 16 selfloop transitions, 2 changer transitions 0/650 dead transitions. [2022-11-02 20:45:42,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 650 transitions, 1346 flow [2022-11-02 20:45:42,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2022-11-02 20:45:42,691 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9543812104787714 [2022-11-02 20:45:42,692 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2022-11-02 20:45:42,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2022-11-02 20:45:42,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:42,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2022-11-02 20:45:42,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,704 INFO L175 Difference]: Start difference. First operand has 643 places, 651 transitions, 1312 flow. Second operand 3 states and 2113 transitions. [2022-11-02 20:45:42,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 650 transitions, 1346 flow [2022-11-02 20:45:42,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 642 places, 650 transitions, 1342 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:42,718 INFO L231 Difference]: Finished difference. Result has 642 places, 650 transitions, 1310 flow [2022-11-02 20:45:42,720 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1310, PETRI_PLACES=642, PETRI_TRANSITIONS=650} [2022-11-02 20:45:42,721 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -38 predicate places. [2022-11-02 20:45:42,722 INFO L495 AbstractCegarLoop]: Abstraction has has 642 places, 650 transitions, 1310 flow [2022-11-02 20:45:42,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:42,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:42,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:45:42,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1603049482, now seen corresponding path program 1 times [2022-11-02 20:45:42,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:42,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925029892] [2022-11-02 20:45:42,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:42,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:42,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:42,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925029892] [2022-11-02 20:45:42,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925029892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:42,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:42,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:42,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713346630] [2022-11-02 20:45:42,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:42,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:42,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:42,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:42,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:42,826 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:45:42,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 650 transitions, 1310 flow. Second operand has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:42,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:42,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:45:42,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:43,000 INFO L130 PetriNetUnfolder]: 28/774 cut-off events. [2022-11-02 20:45:43,000 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-02 20:45:43,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 774 events. 28/774 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1841 event pairs, 9 based on Foata normal form. 0/675 useless extension candidates. Maximal degree in co-relation 780. Up to 35 conditions per place. [2022-11-02 20:45:43,011 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 16 selfloop transitions, 2 changer transitions 0/649 dead transitions. [2022-11-02 20:45:43,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 643 places, 649 transitions, 1344 flow [2022-11-02 20:45:43,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:43,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2022-11-02 20:45:43,016 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9543812104787714 [2022-11-02 20:45:43,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2022-11-02 20:45:43,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2022-11-02 20:45:43,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:43,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2022-11-02 20:45:43,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,028 INFO L175 Difference]: Start difference. First operand has 642 places, 650 transitions, 1310 flow. Second operand 3 states and 2113 transitions. [2022-11-02 20:45:43,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 643 places, 649 transitions, 1344 flow [2022-11-02 20:45:43,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 649 transitions, 1340 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:43,040 INFO L231 Difference]: Finished difference. Result has 641 places, 649 transitions, 1308 flow [2022-11-02 20:45:43,042 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1304, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1308, PETRI_PLACES=641, PETRI_TRANSITIONS=649} [2022-11-02 20:45:43,042 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -39 predicate places. [2022-11-02 20:45:43,043 INFO L495 AbstractCegarLoop]: Abstraction has has 641 places, 649 transitions, 1308 flow [2022-11-02 20:45:43,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.3333333333334) internal successors, (2098), 3 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:43,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:43,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:45:43,044 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:43,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:43,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1990548964, now seen corresponding path program 1 times [2022-11-02 20:45:43,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:43,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200858395] [2022-11-02 20:45:43,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:43,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:43,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:43,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200858395] [2022-11-02 20:45:43,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200858395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:43,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:43,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:43,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962708743] [2022-11-02 20:45:43,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:43,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:43,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:43,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:43,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:43,118 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 695 out of 738 [2022-11-02 20:45:43,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 649 transitions, 1308 flow. Second operand has 3 states, 3 states have (on average 696.3333333333334) internal successors, (2089), 3 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:43,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 695 of 738 [2022-11-02 20:45:43,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:43,649 INFO L130 PetriNetUnfolder]: 96/1954 cut-off events. [2022-11-02 20:45:43,649 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-02 20:45:43,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2091 conditions, 1954 events. 96/1954 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10584 event pairs, 48 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 2052. Up to 121 conditions per place. [2022-11-02 20:45:43,672 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 19 selfloop transitions, 2 changer transitions 0/648 dead transitions. [2022-11-02 20:45:43,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 648 transitions, 1348 flow [2022-11-02 20:45:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2107 transitions. [2022-11-02 20:45:43,678 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9516711833785004 [2022-11-02 20:45:43,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2107 transitions. [2022-11-02 20:45:43,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2107 transitions. [2022-11-02 20:45:43,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:43,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2107 transitions. [2022-11-02 20:45:43,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,692 INFO L175 Difference]: Start difference. First operand has 641 places, 649 transitions, 1308 flow. Second operand 3 states and 2107 transitions. [2022-11-02 20:45:43,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 648 transitions, 1348 flow [2022-11-02 20:45:43,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 648 transitions, 1344 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:43,706 INFO L231 Difference]: Finished difference. Result has 640 places, 648 transitions, 1306 flow [2022-11-02 20:45:43,707 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=638, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1306, PETRI_PLACES=640, PETRI_TRANSITIONS=648} [2022-11-02 20:45:43,708 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -40 predicate places. [2022-11-02 20:45:43,708 INFO L495 AbstractCegarLoop]: Abstraction has has 640 places, 648 transitions, 1306 flow [2022-11-02 20:45:43,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 696.3333333333334) internal successors, (2089), 3 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:43,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:43,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:45:43,710 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:43,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash -829532223, now seen corresponding path program 1 times [2022-11-02 20:45:43,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:43,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050555054] [2022-11-02 20:45:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:43,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:44,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:44,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:44,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050555054] [2022-11-02 20:45:44,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050555054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:44,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:44,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:45:44,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463817364] [2022-11-02 20:45:44,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:44,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:45:44,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:44,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:45:44,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:45:44,454 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 738 [2022-11-02 20:45:44,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 648 transitions, 1306 flow. Second operand has 6 states, 6 states have (on average 602.8333333333334) internal successors, (3617), 6 states have internal predecessors, (3617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:44,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:44,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 738 [2022-11-02 20:45:44,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:55,703 INFO L130 PetriNetUnfolder]: 13707/52813 cut-off events. [2022-11-02 20:45:55,703 INFO L131 PetriNetUnfolder]: For 62/67 co-relation queries the response was YES. [2022-11-02 20:45:55,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72406 conditions, 52813 events. 13707/52813 cut-off events. For 62/67 co-relation queries the response was YES. Maximal size of possible extension queue 719. Compared 661297 event pairs, 12300 based on Foata normal form. 0/43749 useless extension candidates. Maximal degree in co-relation 72368. Up to 19545 conditions per place. [2022-11-02 20:45:56,282 INFO L137 encePairwiseOnDemand]: 726/738 looper letters, 104 selfloop transitions, 10 changer transitions 0/646 dead transitions. [2022-11-02 20:45:56,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 643 places, 646 transitions, 1530 flow [2022-11-02 20:45:56,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:45:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:45:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3722 transitions. [2022-11-02 20:45:56,290 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8405600722673894 [2022-11-02 20:45:56,290 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3722 transitions. [2022-11-02 20:45:56,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3722 transitions. [2022-11-02 20:45:56,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:56,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3722 transitions. [2022-11-02 20:45:56,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 620.3333333333334) internal successors, (3722), 6 states have internal predecessors, (3722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 738.0) internal successors, (5166), 7 states have internal predecessors, (5166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,309 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 738.0) internal successors, (5166), 7 states have internal predecessors, (5166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,309 INFO L175 Difference]: Start difference. First operand has 640 places, 648 transitions, 1306 flow. Second operand 6 states and 3722 transitions. [2022-11-02 20:45:56,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 643 places, 646 transitions, 1530 flow [2022-11-02 20:45:56,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 646 transitions, 1526 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:56,322 INFO L231 Difference]: Finished difference. Result has 641 places, 646 transitions, 1318 flow [2022-11-02 20:45:56,323 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=641, PETRI_TRANSITIONS=646} [2022-11-02 20:45:56,327 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -39 predicate places. [2022-11-02 20:45:56,327 INFO L495 AbstractCegarLoop]: Abstraction has has 641 places, 646 transitions, 1318 flow [2022-11-02 20:45:56,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 602.8333333333334) internal successors, (3617), 6 states have internal predecessors, (3617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:56,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:56,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:45:56,330 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash -20522933, now seen corresponding path program 1 times [2022-11-02 20:45:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:56,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371042136] [2022-11-02 20:45:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:56,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:56,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:56,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371042136] [2022-11-02 20:45:56,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371042136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:56,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:56,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:56,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576150733] [2022-11-02 20:45:56,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:56,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:56,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:56,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:56,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:56,404 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 695 out of 738 [2022-11-02 20:45:56,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 646 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 696.3333333333334) internal successors, (2089), 3 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:56,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 695 of 738 [2022-11-02 20:45:56,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:56,809 INFO L130 PetriNetUnfolder]: 90/1902 cut-off events. [2022-11-02 20:45:56,810 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-02 20:45:56,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 1902 events. 90/1902 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 10193 event pairs, 48 based on Foata normal form. 0/1635 useless extension candidates. Maximal degree in co-relation 2012. Up to 119 conditions per place. [2022-11-02 20:45:56,827 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 19 selfloop transitions, 2 changer transitions 0/645 dead transitions. [2022-11-02 20:45:56,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 645 transitions, 1358 flow [2022-11-02 20:45:56,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:56,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2107 transitions. [2022-11-02 20:45:56,832 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9516711833785004 [2022-11-02 20:45:56,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2107 transitions. [2022-11-02 20:45:56,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2107 transitions. [2022-11-02 20:45:56,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:56,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2107 transitions. [2022-11-02 20:45:56,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,843 INFO L175 Difference]: Start difference. First operand has 641 places, 646 transitions, 1318 flow. Second operand 3 states and 2107 transitions. [2022-11-02 20:45:56,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 645 transitions, 1358 flow [2022-11-02 20:45:56,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 637 places, 645 transitions, 1338 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:45:56,855 INFO L231 Difference]: Finished difference. Result has 637 places, 645 transitions, 1300 flow [2022-11-02 20:45:56,857 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1296, PETRI_DIFFERENCE_MINUEND_PLACES=635, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1300, PETRI_PLACES=637, PETRI_TRANSITIONS=645} [2022-11-02 20:45:56,858 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -43 predicate places. [2022-11-02 20:45:56,858 INFO L495 AbstractCegarLoop]: Abstraction has has 637 places, 645 transitions, 1300 flow [2022-11-02 20:45:56,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 696.3333333333334) internal successors, (2089), 3 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:56,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:56,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:56,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:45:56,860 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:45:56,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:56,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1997167780, now seen corresponding path program 1 times [2022-11-02 20:45:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:56,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911597313] [2022-11-02 20:45:56,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:56,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:57,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:57,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:57,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911597313] [2022-11-02 20:45:57,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911597313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:57,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:57,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:57,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545040003] [2022-11-02 20:45:57,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:57,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:57,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:57,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:57,071 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 738 [2022-11-02 20:45:57,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 645 transitions, 1300 flow. Second operand has 3 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:57,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:57,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 738 [2022-11-02 20:45:57,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:07,178 INFO L130 PetriNetUnfolder]: 13707/52810 cut-off events. [2022-11-02 20:46:07,179 INFO L131 PetriNetUnfolder]: For 62/67 co-relation queries the response was YES. [2022-11-02 20:46:07,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72401 conditions, 52810 events. 13707/52810 cut-off events. For 62/67 co-relation queries the response was YES. Maximal size of possible extension queue 719. Compared 661081 event pairs, 12300 based on Foata normal form. 0/43749 useless extension candidates. Maximal degree in co-relation 72363. Up to 19549 conditions per place. [2022-11-02 20:46:07,597 INFO L137 encePairwiseOnDemand]: 732/738 looper letters, 108 selfloop transitions, 4 changer transitions 0/643 dead transitions. [2022-11-02 20:46:07,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 643 transitions, 1520 flow [2022-11-02 20:46:07,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:07,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1917 transitions. [2022-11-02 20:46:07,603 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8658536585365854 [2022-11-02 20:46:07,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1917 transitions. [2022-11-02 20:46:07,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1917 transitions. [2022-11-02 20:46:07,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:07,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1917 transitions. [2022-11-02 20:46:07,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 639.0) internal successors, (1917), 3 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,621 INFO L175 Difference]: Start difference. First operand has 637 places, 645 transitions, 1300 flow. Second operand 3 states and 1917 transitions. [2022-11-02 20:46:07,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 643 transitions, 1520 flow [2022-11-02 20:46:07,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 643 transitions, 1516 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:07,637 INFO L231 Difference]: Finished difference. Result has 635 places, 643 transitions, 1300 flow [2022-11-02 20:46:07,638 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1292, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=643, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1300, PETRI_PLACES=635, PETRI_TRANSITIONS=643} [2022-11-02 20:46:07,639 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -45 predicate places. [2022-11-02 20:46:07,639 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 643 transitions, 1300 flow [2022-11-02 20:46:07,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:07,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:07,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:46:07,641 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:46:07,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:07,642 INFO L85 PathProgramCache]: Analyzing trace with hash 701176221, now seen corresponding path program 1 times [2022-11-02 20:46:07,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:07,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570284610] [2022-11-02 20:46:07,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:07,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:07,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:07,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570284610] [2022-11-02 20:46:07,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570284610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:07,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:07,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:07,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550906621] [2022-11-02 20:46:07,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:07,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:07,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:07,965 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 738 [2022-11-02 20:46:07,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 643 transitions, 1300 flow. Second operand has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:07,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 738 [2022-11-02 20:46:07,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:08,270 INFO L130 PetriNetUnfolder]: 52/1340 cut-off events. [2022-11-02 20:46:08,270 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-11-02 20:46:08,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 1340 events. 52/1340 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5496 event pairs, 15 based on Foata normal form. 0/1156 useless extension candidates. Maximal degree in co-relation 1379. Up to 45 conditions per place. [2022-11-02 20:46:08,286 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 13 selfloop transitions, 2 changer transitions 0/642 dead transitions. [2022-11-02 20:46:08,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 642 transitions, 1328 flow [2022-11-02 20:46:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2119 transitions. [2022-11-02 20:46:08,291 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9570912375790425 [2022-11-02 20:46:08,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2119 transitions. [2022-11-02 20:46:08,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2119 transitions. [2022-11-02 20:46:08,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:08,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2119 transitions. [2022-11-02 20:46:08,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,301 INFO L175 Difference]: Start difference. First operand has 635 places, 643 transitions, 1300 flow. Second operand 3 states and 2119 transitions. [2022-11-02 20:46:08,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 642 transitions, 1328 flow [2022-11-02 20:46:08,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 642 transitions, 1320 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:08,314 INFO L231 Difference]: Finished difference. Result has 634 places, 642 transitions, 1294 flow [2022-11-02 20:46:08,315 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=634, PETRI_TRANSITIONS=642} [2022-11-02 20:46:08,316 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -46 predicate places. [2022-11-02 20:46:08,316 INFO L495 AbstractCegarLoop]: Abstraction has has 634 places, 642 transitions, 1294 flow [2022-11-02 20:46:08,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:08,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:08,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:46:08,318 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:46:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:08,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1337178642, now seen corresponding path program 1 times [2022-11-02 20:46:08,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:08,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952975541] [2022-11-02 20:46:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:08,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:08,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:08,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952975541] [2022-11-02 20:46:08,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952975541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:08,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:08,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:08,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878874429] [2022-11-02 20:46:08,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:08,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:08,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:08,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:08,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:08,426 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 738 [2022-11-02 20:46:08,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 642 transitions, 1294 flow. Second operand has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:08,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 738 [2022-11-02 20:46:08,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:08,715 INFO L130 PetriNetUnfolder]: 54/1322 cut-off events. [2022-11-02 20:46:08,716 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-02 20:46:08,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1322 events. 54/1322 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5495 event pairs, 15 based on Foata normal form. 0/1140 useless extension candidates. Maximal degree in co-relation 1344. Up to 48 conditions per place. [2022-11-02 20:46:08,734 INFO L137 encePairwiseOnDemand]: 735/738 looper letters, 13 selfloop transitions, 2 changer transitions 0/641 dead transitions. [2022-11-02 20:46:08,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 641 transitions, 1322 flow [2022-11-02 20:46:08,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:08,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2119 transitions. [2022-11-02 20:46:08,740 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9570912375790425 [2022-11-02 20:46:08,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2119 transitions. [2022-11-02 20:46:08,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2119 transitions. [2022-11-02 20:46:08,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:08,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2119 transitions. [2022-11-02 20:46:08,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,751 INFO L175 Difference]: Start difference. First operand has 634 places, 642 transitions, 1294 flow. Second operand 3 states and 2119 transitions. [2022-11-02 20:46:08,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 641 transitions, 1322 flow [2022-11-02 20:46:08,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 641 transitions, 1318 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:08,764 INFO L231 Difference]: Finished difference. Result has 633 places, 641 transitions, 1292 flow [2022-11-02 20:46:08,765 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1292, PETRI_PLACES=633, PETRI_TRANSITIONS=641} [2022-11-02 20:46:08,767 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -47 predicate places. [2022-11-02 20:46:08,768 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 641 transitions, 1292 flow [2022-11-02 20:46:08,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:08,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:08,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:46:08,769 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:46:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1919866384, now seen corresponding path program 1 times [2022-11-02 20:46:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:08,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359793417] [2022-11-02 20:46:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:08,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:08,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:08,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359793417] [2022-11-02 20:46:08,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359793417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:08,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:08,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:08,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057683116] [2022-11-02 20:46:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:08,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:08,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:08,880 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:46:08,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 641 transitions, 1292 flow. Second operand has 3 states, 3 states have (on average 699.6666666666666) internal successors, (2099), 3 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:08,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:46:08,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:09,230 INFO L130 PetriNetUnfolder]: 66/1655 cut-off events. [2022-11-02 20:46:09,230 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-02 20:46:09,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 1655 events. 66/1655 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7966 event pairs, 16 based on Foata normal form. 0/1444 useless extension candidates. Maximal degree in co-relation 1695. Up to 61 conditions per place. [2022-11-02 20:46:09,248 INFO L137 encePairwiseOnDemand]: 732/738 looper letters, 15 selfloop transitions, 2 changer transitions 0/640 dead transitions. [2022-11-02 20:46:09,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 640 transitions, 1325 flow [2022-11-02 20:46:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2115 transitions. [2022-11-02 20:46:09,253 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9552845528455285 [2022-11-02 20:46:09,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2115 transitions. [2022-11-02 20:46:09,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2115 transitions. [2022-11-02 20:46:09,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:09,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2115 transitions. [2022-11-02 20:46:09,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 705.0) internal successors, (2115), 3 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,264 INFO L175 Difference]: Start difference. First operand has 633 places, 641 transitions, 1292 flow. Second operand 3 states and 2115 transitions. [2022-11-02 20:46:09,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 640 transitions, 1325 flow [2022-11-02 20:46:09,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 640 transitions, 1321 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:09,278 INFO L231 Difference]: Finished difference. Result has 630 places, 639 transitions, 1294 flow [2022-11-02 20:46:09,279 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=627, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=630, PETRI_TRANSITIONS=639} [2022-11-02 20:46:09,280 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -50 predicate places. [2022-11-02 20:46:09,280 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 639 transitions, 1294 flow [2022-11-02 20:46:09,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.6666666666666) internal successors, (2099), 3 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:09,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:09,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:46:09,281 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:46:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash -644072562, now seen corresponding path program 1 times [2022-11-02 20:46:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:09,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703982527] [2022-11-02 20:46:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:09,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:09,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:09,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703982527] [2022-11-02 20:46:09,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703982527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:09,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:09,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022436617] [2022-11-02 20:46:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:09,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:09,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:09,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:09,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:09,378 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 738 [2022-11-02 20:46:09,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 639 transitions, 1294 flow. Second operand has 3 states, 3 states have (on average 700.0) internal successors, (2100), 3 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:09,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 738 [2022-11-02 20:46:09,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:09,853 INFO L130 PetriNetUnfolder]: 66/1705 cut-off events. [2022-11-02 20:46:09,853 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 20:46:09,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1789 conditions, 1705 events. 66/1705 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8606 event pairs, 15 based on Foata normal form. 0/1506 useless extension candidates. Maximal degree in co-relation 1751. Up to 62 conditions per place. [2022-11-02 20:46:09,868 INFO L137 encePairwiseOnDemand]: 732/738 looper letters, 15 selfloop transitions, 2 changer transitions 0/638 dead transitions. [2022-11-02 20:46:09,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 638 transitions, 1327 flow [2022-11-02 20:46:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:09,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2115 transitions. [2022-11-02 20:46:09,874 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9552845528455285 [2022-11-02 20:46:09,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2115 transitions. [2022-11-02 20:46:09,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2115 transitions. [2022-11-02 20:46:09,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:09,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2115 transitions. [2022-11-02 20:46:09,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 705.0) internal successors, (2115), 3 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 738.0) internal successors, (2952), 4 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,884 INFO L175 Difference]: Start difference. First operand has 630 places, 639 transitions, 1294 flow. Second operand 3 states and 2115 transitions. [2022-11-02 20:46:09,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 638 transitions, 1327 flow [2022-11-02 20:46:09,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 638 transitions, 1327 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:46:09,898 INFO L231 Difference]: Finished difference. Result has 629 places, 637 transitions, 1300 flow [2022-11-02 20:46:09,899 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=626, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1300, PETRI_PLACES=629, PETRI_TRANSITIONS=637} [2022-11-02 20:46:09,899 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -51 predicate places. [2022-11-02 20:46:09,899 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 637 transitions, 1300 flow [2022-11-02 20:46:09,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 700.0) internal successors, (2100), 3 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:09,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:09,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:46:09,901 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:46:09,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:09,902 INFO L85 PathProgramCache]: Analyzing trace with hash 830181942, now seen corresponding path program 1 times [2022-11-02 20:46:09,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:09,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268161660] [2022-11-02 20:46:09,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:09,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:10,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:10,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268161660] [2022-11-02 20:46:10,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268161660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:10,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:10,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:46:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426874511] [2022-11-02 20:46:10,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:10,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:46:10,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:10,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:46:10,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:46:10,176 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 630 out of 738 [2022-11-02 20:46:10,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 637 transitions, 1300 flow. Second operand has 7 states, 7 states have (on average 634.5714285714286) internal successors, (4442), 7 states have internal predecessors, (4442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:10,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:10,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 630 of 738 [2022-11-02 20:46:10,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:12,418 INFO L130 PetriNetUnfolder]: 1002/8753 cut-off events. [2022-11-02 20:46:12,419 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-02 20:46:12,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10524 conditions, 8753 events. 1002/8753 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 86856 event pairs, 720 based on Foata normal form. 0/7424 useless extension candidates. Maximal degree in co-relation 10482. Up to 845 conditions per place. [2022-11-02 20:46:12,491 INFO L137 encePairwiseOnDemand]: 728/738 looper letters, 162 selfloop transitions, 9 changer transitions 0/723 dead transitions. [2022-11-02 20:46:12,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 723 transitions, 1818 flow [2022-11-02 20:46:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:46:12,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-02 20:46:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5212 transitions. [2022-11-02 20:46:12,503 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8827913279132791 [2022-11-02 20:46:12,503 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 5212 transitions. [2022-11-02 20:46:12,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 5212 transitions. [2022-11-02 20:46:12,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:12,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 5212 transitions. [2022-11-02 20:46:12,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 651.5) internal successors, (5212), 8 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 738.0) internal successors, (6642), 9 states have internal predecessors, (6642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,529 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 738.0) internal successors, (6642), 9 states have internal predecessors, (6642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,529 INFO L175 Difference]: Start difference. First operand has 629 places, 637 transitions, 1300 flow. Second operand 8 states and 5212 transitions. [2022-11-02 20:46:12,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 723 transitions, 1818 flow [2022-11-02 20:46:12,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 723 transitions, 1818 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:46:12,543 INFO L231 Difference]: Finished difference. Result has 641 places, 643 transitions, 1357 flow [2022-11-02 20:46:12,544 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1357, PETRI_PLACES=641, PETRI_TRANSITIONS=643} [2022-11-02 20:46:12,545 INFO L287 CegarLoopForPetriNet]: 680 programPoint places, -39 predicate places. [2022-11-02 20:46:12,545 INFO L495 AbstractCegarLoop]: Abstraction has has 641 places, 643 transitions, 1357 flow [2022-11-02 20:46:12,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 634.5714285714286) internal successors, (4442), 7 states have internal predecessors, (4442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:12,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:12,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:46:12,547 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-02 20:46:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash 379248821, now seen corresponding path program 1 times [2022-11-02 20:46:12,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:12,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091395357] [2022-11-02 20:46:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:13,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:13,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091395357] [2022-11-02 20:46:13,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091395357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:13,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:13,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005897105] [2022-11-02 20:46:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:13,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:13,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:13,483 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 609 out of 738 [2022-11-02 20:46:13,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 643 transitions, 1357 flow. Second operand has 6 states, 6 states have (on average 611.5) internal successors, (3669), 6 states have internal predecessors, (3669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:13,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:13,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 609 of 738 [2022-11-02 20:46:13,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand