./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:14:25,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:14:25,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:14:25,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:14:25,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:14:25,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:14:25,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:14:25,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:14:25,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:14:25,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:14:25,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:14:25,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:14:25,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:14:25,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:14:25,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:14:25,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:14:25,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:14:25,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:14:25,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:14:25,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:14:25,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:14:25,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:14:25,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:14:25,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:14:25,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:14:25,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:14:25,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:14:25,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:14:25,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:14:25,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:14:25,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:14:25,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:14:25,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:14:25,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:14:25,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:14:25,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:14:25,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:14:25,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:14:25,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:14:25,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:14:25,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:14:25,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:14:25,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:14:25,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:14:25,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:14:25,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:14:25,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:14:25,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:14:25,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:14:25,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:14:25,911 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:14:25,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:14:25,912 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:14:25,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:14:25,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:14:25,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:14:25,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:14:25,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:14:25,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:14:25,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:14:25,914 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:14:25,915 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:14:25,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:14:25,915 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:14:25,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:14:25,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:14:25,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:14:25,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:14:25,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:14:25,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:14:25,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:14:25,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:14:25,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:14:25,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:14:25,917 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:14:25,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:14:25,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:14:25,918 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_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-11-16 11:14:26,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:14:26,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:14:26,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:14:26,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:14:26,200 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:14:26,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-16 11:14:26,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/data/e5cc80b71/e8084de223d34904a41504852a94f85e/FLAGa5d96e3e8 [2022-11-16 11:14:26,883 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:14:26,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-16 11:14:26,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/data/e5cc80b71/e8084de223d34904a41504852a94f85e/FLAGa5d96e3e8 [2022-11-16 11:14:27,076 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/data/e5cc80b71/e8084de223d34904a41504852a94f85e [2022-11-16 11:14:27,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:14:27,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:14:27,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:14:27,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:14:27,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:14:27,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:14:27" (1/1) ... [2022-11-16 11:14:27,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e62d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:27, skipping insertion in model container [2022-11-16 11:14:27,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:14:27" (1/1) ... [2022-11-16 11:14:27,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:14:27,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:14:27,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:14:27,953 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:14:28,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:14:28,180 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:14:28,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28 WrapperNode [2022-11-16 11:14:28,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:14:28,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:14:28,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:14:28,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:14:28,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,284 INFO L138 Inliner]: procedures = 524, calls = 61, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2022-11-16 11:14:28,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:14:28,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:14:28,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:14:28,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:14:28,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,348 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:14:28,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:14:28,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:14:28,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:14:28,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (1/1) ... [2022-11-16 11:14:28,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:14:28,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:14:28,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:14:28,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:14:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-16 11:14:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-16 11:14:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-16 11:14:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-16 11:14:28,482 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-16 11:14:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-16 11:14:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:14:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:14:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:14:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:14:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:14:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:14:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:14:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-16 11:14:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-16 11:14:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:14:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:14:28,490 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:14:28,896 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:14:28,899 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:14:29,286 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:14:29,296 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:14:29,296 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-16 11:14:29,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:14:29 BoogieIcfgContainer [2022-11-16 11:14:29,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:14:29,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:14:29,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:14:29,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:14:29,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:14:27" (1/3) ... [2022-11-16 11:14:29,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3ef048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:14:29, skipping insertion in model container [2022-11-16 11:14:29,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:28" (2/3) ... [2022-11-16 11:14:29,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3ef048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:14:29, skipping insertion in model container [2022-11-16 11:14:29,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:14:29" (3/3) ... [2022-11-16 11:14:29,319 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-11-16 11:14:29,328 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:14:29,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:14:29,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 11:14:29,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:14:29,413 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:14:29,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 278 transitions, 572 flow [2022-11-16 11:14:29,597 INFO L130 PetriNetUnfolder]: 31/276 cut-off events. [2022-11-16 11:14:29,597 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:14:29,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 276 events. 31/276 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 660 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-11-16 11:14:29,609 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 278 transitions, 572 flow [2022-11-16 11:14:29,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 265 transitions, 542 flow [2022-11-16 11:14:29,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:14:29,658 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;@14dd50c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:14:29,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-16 11:14:29,677 INFO L130 PetriNetUnfolder]: 0/54 cut-off events. [2022-11-16 11:14:29,677 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:14:29,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:29,678 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:29,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:29,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:29,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1227493816, now seen corresponding path program 1 times [2022-11-16 11:14:29,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:29,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657776623] [2022-11-16 11:14:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:29,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:30,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:30,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:30,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657776623] [2022-11-16 11:14:30,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657776623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:30,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:30,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:30,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17055838] [2022-11-16 11:14:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:30,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:30,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:30,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:30,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:30,299 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 278 [2022-11-16 11:14:30,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 265 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:30,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 278 [2022-11-16 11:14:30,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:30,504 INFO L130 PetriNetUnfolder]: 33/578 cut-off events. [2022-11-16 11:14:30,504 INFO L131 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2022-11-16 11:14:30,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 578 events. 33/578 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3137 event pairs, 15 based on Foata normal form. 87/567 useless extension candidates. Maximal degree in co-relation 483. Up to 52 conditions per place. [2022-11-16 11:14:30,516 INFO L137 encePairwiseOnDemand]: 257/278 looper letters, 13 selfloop transitions, 2 changer transitions 3/231 dead transitions. [2022-11-16 11:14:30,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 231 transitions, 504 flow [2022-11-16 11:14:30,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2022-11-16 11:14:30,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8860911270983214 [2022-11-16 11:14:30,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2022-11-16 11:14:30,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2022-11-16 11:14:30,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:30,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2022-11-16 11:14:30,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,566 INFO L175 Difference]: Start difference. First operand has 243 places, 265 transitions, 542 flow. Second operand 3 states and 739 transitions. [2022-11-16 11:14:30,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 231 transitions, 504 flow [2022-11-16 11:14:30,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 231 transitions, 496 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:14:30,579 INFO L231 Difference]: Finished difference. Result has 232 places, 228 transitions, 464 flow [2022-11-16 11:14:30,582 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=464, PETRI_PLACES=232, PETRI_TRANSITIONS=228} [2022-11-16 11:14:30,588 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -11 predicate places. [2022-11-16 11:14:30,589 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 228 transitions, 464 flow [2022-11-16 11:14:30,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:30,591 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:30,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:14:30,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1945959438, now seen corresponding path program 1 times [2022-11-16 11:14:30,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:30,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369670736] [2022-11-16 11:14:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:30,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:30,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369670736] [2022-11-16 11:14:30,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369670736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:30,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:30,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001315144] [2022-11-16 11:14:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:30,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:30,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:30,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 278 [2022-11-16 11:14:30,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 228 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:30,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 278 [2022-11-16 11:14:30,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:30,870 INFO L130 PetriNetUnfolder]: 23/534 cut-off events. [2022-11-16 11:14:30,870 INFO L131 PetriNetUnfolder]: For 5/11 co-relation queries the response was YES. [2022-11-16 11:14:30,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 534 events. 23/534 cut-off events. For 5/11 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2696 event pairs, 5 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 512. Up to 29 conditions per place. [2022-11-16 11:14:30,876 INFO L137 encePairwiseOnDemand]: 274/278 looper letters, 11 selfloop transitions, 2 changer transitions 0/229 dead transitions. [2022-11-16 11:14:30,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 229 transitions, 493 flow [2022-11-16 11:14:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2022-11-16 11:14:30,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8741007194244604 [2022-11-16 11:14:30,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2022-11-16 11:14:30,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2022-11-16 11:14:30,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:30,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2022-11-16 11:14:30,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,898 INFO L175 Difference]: Start difference. First operand has 232 places, 228 transitions, 464 flow. Second operand 3 states and 729 transitions. [2022-11-16 11:14:30,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 229 transitions, 493 flow [2022-11-16 11:14:30,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 229 transitions, 489 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:30,904 INFO L231 Difference]: Finished difference. Result has 228 places, 228 transitions, 470 flow [2022-11-16 11:14:30,904 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=228, PETRI_TRANSITIONS=228} [2022-11-16 11:14:30,905 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -15 predicate places. [2022-11-16 11:14:30,905 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 228 transitions, 470 flow [2022-11-16 11:14:30,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:30,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:30,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:30,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:14:30,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:30,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash 288253999, now seen corresponding path program 1 times [2022-11-16 11:14:30,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:30,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771257160] [2022-11-16 11:14:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:31,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:31,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771257160] [2022-11-16 11:14:31,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771257160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:31,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:31,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:31,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657319514] [2022-11-16 11:14:31,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:31,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:31,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:31,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:31,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:31,054 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 278 [2022-11-16 11:14:31,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 228 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:31,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 278 [2022-11-16 11:14:31,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:31,252 INFO L130 PetriNetUnfolder]: 136/644 cut-off events. [2022-11-16 11:14:31,252 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:14:31,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 644 events. 136/644 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3858 event pairs, 76 based on Foata normal form. 1/585 useless extension candidates. Maximal degree in co-relation 733. Up to 243 conditions per place. [2022-11-16 11:14:31,260 INFO L137 encePairwiseOnDemand]: 262/278 looper letters, 17 selfloop transitions, 7 changer transitions 8/229 dead transitions. [2022-11-16 11:14:31,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 229 transitions, 530 flow [2022-11-16 11:14:31,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:31,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2022-11-16 11:14:31,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8453237410071942 [2022-11-16 11:14:31,264 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2022-11-16 11:14:31,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2022-11-16 11:14:31,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:31,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2022-11-16 11:14:31,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,269 INFO L175 Difference]: Start difference. First operand has 228 places, 228 transitions, 470 flow. Second operand 3 states and 705 transitions. [2022-11-16 11:14:31,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 229 transitions, 530 flow [2022-11-16 11:14:31,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 229 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:14:31,276 INFO L231 Difference]: Finished difference. Result has 223 places, 219 transitions, 482 flow [2022-11-16 11:14:31,277 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=223, PETRI_TRANSITIONS=219} [2022-11-16 11:14:31,280 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -20 predicate places. [2022-11-16 11:14:31,280 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 219 transitions, 482 flow [2022-11-16 11:14:31,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,281 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:31,282 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:31,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:14:31,282 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2144850657, now seen corresponding path program 1 times [2022-11-16 11:14:31,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:31,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855920322] [2022-11-16 11:14:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:31,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:31,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:31,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855920322] [2022-11-16 11:14:31,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855920322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:31,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:31,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51068103] [2022-11-16 11:14:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:31,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:31,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 278 [2022-11-16 11:14:31,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 219 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:31,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 278 [2022-11-16 11:14:31,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:31,723 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [271#true, 33#L1843-3true, Black: 261#true, 76#L1819-3true, 50#L1803-3true, 266#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:31,723 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:31,723 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 11:14:31,723 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:31,724 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:31,730 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][110], [271#true, 33#L1843-3true, 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:31,730 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:31,730 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-16 11:14:31,730 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:31,731 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:31,738 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [271#true, 33#L1843-3true, 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:31,741 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-16 11:14:31,742 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 11:14:31,742 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:31,742 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:31,742 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-16 11:14:31,769 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([712] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][176], [120#L1824-2true, 271#true, 33#L1843-3true, 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:31,769 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 11:14:31,769 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-16 11:14:31,769 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:31,775 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-16 11:14:31,780 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][150], [120#L1824-2true, 271#true, 268#(= |#race~stderr~0| 0), 33#L1843-3true, 16#L1811-2true, Black: 261#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:31,781 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 11:14:31,781 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-16 11:14:31,781 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-16 11:14:31,781 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:31,794 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][150], [120#L1824-2true, 177#L1845-5true, 271#true, 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:31,794 INFO L383 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-11-16 11:14:31,794 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 11:14:31,795 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 11:14:31,795 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-16 11:14:31,817 INFO L130 PetriNetUnfolder]: 218/1608 cut-off events. [2022-11-16 11:14:31,817 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 11:14:31,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 1608 events. 218/1608 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 12203 event pairs, 35 based on Foata normal form. 0/1420 useless extension candidates. Maximal degree in co-relation 1922. Up to 184 conditions per place. [2022-11-16 11:14:31,834 INFO L137 encePairwiseOnDemand]: 267/278 looper letters, 24 selfloop transitions, 8 changer transitions 0/233 dead transitions. [2022-11-16 11:14:31,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 233 transitions, 576 flow [2022-11-16 11:14:31,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:31,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 731 transitions. [2022-11-16 11:14:31,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8764988009592326 [2022-11-16 11:14:31,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 731 transitions. [2022-11-16 11:14:31,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 731 transitions. [2022-11-16 11:14:31,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:31,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 731 transitions. [2022-11-16 11:14:31,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,842 INFO L175 Difference]: Start difference. First operand has 223 places, 219 transitions, 482 flow. Second operand 3 states and 731 transitions. [2022-11-16 11:14:31,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 233 transitions, 576 flow [2022-11-16 11:14:31,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 233 transitions, 576 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:14:31,849 INFO L231 Difference]: Finished difference. Result has 221 places, 227 transitions, 552 flow [2022-11-16 11:14:31,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=221, PETRI_TRANSITIONS=227} [2022-11-16 11:14:31,851 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -22 predicate places. [2022-11-16 11:14:31,851 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 227 transitions, 552 flow [2022-11-16 11:14:31,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:31,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:31,852 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:31,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:14:31,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:31,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash 864591598, now seen corresponding path program 1 times [2022-11-16 11:14:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:31,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834071339] [2022-11-16 11:14:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:31,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:32,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:32,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834071339] [2022-11-16 11:14:32,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834071339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:32,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:32,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:14:32,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102938469] [2022-11-16 11:14:32,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:32,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:14:32,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:14:32,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:14:32,575 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 278 [2022-11-16 11:14:32,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 227 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:32,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:32,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 278 [2022-11-16 11:14:32,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:32,855 INFO L130 PetriNetUnfolder]: 110/1125 cut-off events. [2022-11-16 11:14:32,855 INFO L131 PetriNetUnfolder]: For 40/68 co-relation queries the response was YES. [2022-11-16 11:14:32,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 1125 events. 110/1125 cut-off events. For 40/68 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 7540 event pairs, 13 based on Foata normal form. 16/1030 useless extension candidates. Maximal degree in co-relation 1302. Up to 138 conditions per place. [2022-11-16 11:14:32,868 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 14 selfloop transitions, 4 changer transitions 0/226 dead transitions. [2022-11-16 11:14:32,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 226 transitions, 586 flow [2022-11-16 11:14:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:14:32,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:14:32,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1393 transitions. [2022-11-16 11:14:32,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8351318944844125 [2022-11-16 11:14:32,872 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1393 transitions. [2022-11-16 11:14:32,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1393 transitions. [2022-11-16 11:14:32,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:32,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1393 transitions. [2022-11-16 11:14:32,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:32,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:32,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:32,882 INFO L175 Difference]: Start difference. First operand has 221 places, 227 transitions, 552 flow. Second operand 6 states and 1393 transitions. [2022-11-16 11:14:32,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 226 transitions, 586 flow [2022-11-16 11:14:32,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 226 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:32,888 INFO L231 Difference]: Finished difference. Result has 223 places, 226 transitions, 542 flow [2022-11-16 11:14:32,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=223, PETRI_TRANSITIONS=226} [2022-11-16 11:14:32,889 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -20 predicate places. [2022-11-16 11:14:32,889 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 226 transitions, 542 flow [2022-11-16 11:14:32,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:32,891 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:32,891 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:32,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:14:32,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:32,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -2045566154, now seen corresponding path program 1 times [2022-11-16 11:14:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:32,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000131702] [2022-11-16 11:14:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:32,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:32,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:32,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000131702] [2022-11-16 11:14:32,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000131702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:32,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:32,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:32,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73039289] [2022-11-16 11:14:32,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:32,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:32,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:32,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:32,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:32,968 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 278 [2022-11-16 11:14:32,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 226 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:32,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:32,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 278 [2022-11-16 11:14:32,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:33,206 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [277#true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:33,207 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-16 11:14:33,207 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 11:14:33,209 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:33,210 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:33,230 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [277#true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), Black: 261#true, 76#L1819-3true, 50#L1803-3true, 266#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:33,230 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:33,230 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 11:14:33,230 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:33,231 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:33,231 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-16 11:14:33,241 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][110], [277#true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:33,242 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:33,242 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:33,243 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-16 11:14:33,243 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:33,296 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([712] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][174], [120#L1824-2true, 277#true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:33,296 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 11:14:33,296 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-16 11:14:33,297 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:33,297 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-16 11:14:33,302 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][148], [120#L1824-2true, 277#true, 268#(= |#race~stderr~0| 0), 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:33,302 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 11:14:33,302 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-16 11:14:33,302 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:33,302 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-16 11:14:33,317 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][148], [120#L1824-2true, 177#L1845-5true, 277#true, 268#(= |#race~stderr~0| 0), Black: 273#(= |#race~counter~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:33,317 INFO L383 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-11-16 11:14:33,317 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-16 11:14:33,317 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 11:14:33,317 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 11:14:33,340 INFO L130 PetriNetUnfolder]: 266/1958 cut-off events. [2022-11-16 11:14:33,340 INFO L131 PetriNetUnfolder]: For 134/173 co-relation queries the response was YES. [2022-11-16 11:14:33,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2773 conditions, 1958 events. 266/1958 cut-off events. For 134/173 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 15769 event pairs, 50 based on Foata normal form. 6/1757 useless extension candidates. Maximal degree in co-relation 2569. Up to 246 conditions per place. [2022-11-16 11:14:33,360 INFO L137 encePairwiseOnDemand]: 271/278 looper letters, 35 selfloop transitions, 10 changer transitions 0/243 dead transitions. [2022-11-16 11:14:33,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 243 transitions, 691 flow [2022-11-16 11:14:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 723 transitions. [2022-11-16 11:14:33,363 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8669064748201439 [2022-11-16 11:14:33,363 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 723 transitions. [2022-11-16 11:14:33,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 723 transitions. [2022-11-16 11:14:33,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:33,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 723 transitions. [2022-11-16 11:14:33,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,369 INFO L175 Difference]: Start difference. First operand has 223 places, 226 transitions, 542 flow. Second operand 3 states and 723 transitions. [2022-11-16 11:14:33,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 243 transitions, 691 flow [2022-11-16 11:14:33,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 243 transitions, 684 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:14:33,376 INFO L231 Difference]: Finished difference. Result has 223 places, 234 transitions, 621 flow [2022-11-16 11:14:33,377 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=621, PETRI_PLACES=223, PETRI_TRANSITIONS=234} [2022-11-16 11:14:33,379 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -20 predicate places. [2022-11-16 11:14:33,379 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 234 transitions, 621 flow [2022-11-16 11:14:33,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:33,380 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:33,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:14:33,380 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:33,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1950349311, now seen corresponding path program 1 times [2022-11-16 11:14:33,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:33,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808099710] [2022-11-16 11:14:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:33,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:33,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:33,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808099710] [2022-11-16 11:14:33,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808099710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:33,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:33,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:33,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773609052] [2022-11-16 11:14:33,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:33,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:33,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:33,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:33,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 278 [2022-11-16 11:14:33,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 234 transitions, 621 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:33,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 278 [2022-11-16 11:14:33,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:33,731 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 284#true, 290#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:33,731 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-16 11:14:33,731 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 11:14:33,731 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:33,731 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:33,741 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 284#true, 290#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:33,742 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:33,742 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-16 11:14:33,742 INFO L386 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-11-16 11:14:33,742 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-16 11:14:33,750 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 290#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:33,750 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:33,751 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 11:14:33,751 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:33,751 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:33,751 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-16 11:14:33,760 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][110], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 290#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-16 11:14:33,761 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:33,761 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-16 11:14:33,761 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-16 11:14:33,761 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 11:14:33,814 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([712] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][173], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 120#L1824-2true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 290#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:33,814 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 11:14:33,814 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:33,814 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-16 11:14:33,814 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-16 11:14:33,819 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][148], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 120#L1824-2true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 290#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:33,819 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 11:14:33,820 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-16 11:14:33,820 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:33,820 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-16 11:14:33,835 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][148], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 120#L1824-2true, 177#L1845-5true, 268#(= |#race~stderr~0| 0), Black: 273#(= |#race~counter~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 290#true, 263#(= |#race~end_time~0| 0), Black: 266#true]) [2022-11-16 11:14:33,835 INFO L383 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-11-16 11:14:33,835 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 11:14:33,835 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 11:14:33,836 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-16 11:14:33,858 INFO L130 PetriNetUnfolder]: 287/1942 cut-off events. [2022-11-16 11:14:33,859 INFO L131 PetriNetUnfolder]: For 487/603 co-relation queries the response was YES. [2022-11-16 11:14:33,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2978 conditions, 1942 events. 287/1942 cut-off events. For 487/603 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 15338 event pairs, 43 based on Foata normal form. 4/1751 useless extension candidates. Maximal degree in co-relation 2768. Up to 258 conditions per place. [2022-11-16 11:14:33,882 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 38 selfloop transitions, 9 changer transitions 0/246 dead transitions. [2022-11-16 11:14:33,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 246 transitions, 768 flow [2022-11-16 11:14:33,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:33,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2022-11-16 11:14:33,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8633093525179856 [2022-11-16 11:14:33,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 720 transitions. [2022-11-16 11:14:33,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 720 transitions. [2022-11-16 11:14:33,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:33,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 720 transitions. [2022-11-16 11:14:33,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,892 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,892 INFO L175 Difference]: Start difference. First operand has 223 places, 234 transitions, 621 flow. Second operand 3 states and 720 transitions. [2022-11-16 11:14:33,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 246 transitions, 768 flow [2022-11-16 11:14:33,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 246 transitions, 742 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:33,904 INFO L231 Difference]: Finished difference. Result has 225 places, 239 transitions, 669 flow [2022-11-16 11:14:33,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=225, PETRI_TRANSITIONS=239} [2022-11-16 11:14:33,905 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -18 predicate places. [2022-11-16 11:14:33,906 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 239 transitions, 669 flow [2022-11-16 11:14:33,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:33,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:33,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:33,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:14:33,907 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:33,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:33,907 INFO L85 PathProgramCache]: Analyzing trace with hash -743021775, now seen corresponding path program 1 times [2022-11-16 11:14:33,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:33,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622878451] [2022-11-16 11:14:33,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:33,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:34,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:34,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:34,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622878451] [2022-11-16 11:14:34,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622878451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:34,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:34,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:14:34,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936517608] [2022-11-16 11:14:34,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:34,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:14:34,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:34,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:14:34,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:14:34,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 278 [2022-11-16 11:14:34,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 239 transitions, 669 flow. Second operand has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:34,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:34,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 278 [2022-11-16 11:14:34,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:34,712 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([706] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][186], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 290#true, 263#(= |#race~end_time~0| 0), 10#L1830-1true, 23#L1808-7true]) [2022-11-16 11:14:34,712 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-16 11:14:34,712 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-16 11:14:34,712 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-16 11:14:34,712 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:34,725 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([713] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][196], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, 15#L1825-1true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 290#true, 263#(= |#race~end_time~0| 0), 23#L1808-7true]) [2022-11-16 11:14:34,725 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:34,725 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-16 11:14:34,726 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-16 11:14:34,726 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-16 11:14:34,779 INFO L130 PetriNetUnfolder]: 198/1577 cut-off events. [2022-11-16 11:14:34,780 INFO L131 PetriNetUnfolder]: For 245/309 co-relation queries the response was YES. [2022-11-16 11:14:34,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 1577 events. 198/1577 cut-off events. For 245/309 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11973 event pairs, 13 based on Foata normal form. 4/1427 useless extension candidates. Maximal degree in co-relation 2097. Up to 189 conditions per place. [2022-11-16 11:14:34,798 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 13 selfloop transitions, 4 changer transitions 0/238 dead transitions. [2022-11-16 11:14:34,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 238 transitions, 701 flow [2022-11-16 11:14:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:14:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:14:34,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1392 transitions. [2022-11-16 11:14:34,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8345323741007195 [2022-11-16 11:14:34,802 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1392 transitions. [2022-11-16 11:14:34,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1392 transitions. [2022-11-16 11:14:34,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:34,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1392 transitions. [2022-11-16 11:14:34,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:34,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:34,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:34,811 INFO L175 Difference]: Start difference. First operand has 225 places, 239 transitions, 669 flow. Second operand 6 states and 1392 transitions. [2022-11-16 11:14:34,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 238 transitions, 701 flow [2022-11-16 11:14:34,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 238 transitions, 683 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:34,817 INFO L231 Difference]: Finished difference. Result has 227 places, 238 transitions, 657 flow [2022-11-16 11:14:34,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=657, PETRI_PLACES=227, PETRI_TRANSITIONS=238} [2022-11-16 11:14:34,819 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2022-11-16 11:14:34,819 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 238 transitions, 657 flow [2022-11-16 11:14:34,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:34,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:34,820 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:34,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:14:34,821 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1841930750, now seen corresponding path program 1 times [2022-11-16 11:14:34,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:34,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360901174] [2022-11-16 11:14:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:34,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:35,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:35,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360901174] [2022-11-16 11:14:35,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360901174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:35,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:35,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:14:35,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548847951] [2022-11-16 11:14:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:35,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:35,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:35,078 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 278 [2022-11-16 11:14:35,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 238 transitions, 657 flow. Second operand has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:35,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:35,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 278 [2022-11-16 11:14:35,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:35,305 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([706] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][205], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 263#(= |#race~end_time~0| 0), 81#L1808-2true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 10#L1830-1true]) [2022-11-16 11:14:35,306 INFO L383 tUnfolder$Statistics]: this new event has 123 ancestors and is cut-off event [2022-11-16 11:14:35,306 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-16 11:14:35,306 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-16 11:14:35,306 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-16 11:14:35,326 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([713] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][214], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, 15#L1825-1true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 263#(= |#race~end_time~0| 0), 81#L1808-2true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0))]) [2022-11-16 11:14:35,326 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-16 11:14:35,326 INFO L386 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-11-16 11:14:35,326 INFO L386 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-11-16 11:14:35,327 INFO L386 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-11-16 11:14:35,350 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([706] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][204], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 263#(= |#race~end_time~0| 0), 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 23#L1808-7true, 10#L1830-1true]) [2022-11-16 11:14:35,351 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-16 11:14:35,351 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-16 11:14:35,351 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-16 11:14:35,351 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-16 11:14:35,394 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([713] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][213], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 15#L1825-1true, 33#L1843-3true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 263#(= |#race~end_time~0| 0), 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 23#L1808-7true]) [2022-11-16 11:14:35,394 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-16 11:14:35,395 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-16 11:14:35,395 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-16 11:14:35,395 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-16 11:14:35,456 INFO L130 PetriNetUnfolder]: 248/2147 cut-off events. [2022-11-16 11:14:35,456 INFO L131 PetriNetUnfolder]: For 222/271 co-relation queries the response was YES. [2022-11-16 11:14:35,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3078 conditions, 2147 events. 248/2147 cut-off events. For 222/271 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 17926 event pairs, 23 based on Foata normal form. 9/1961 useless extension candidates. Maximal degree in co-relation 2980. Up to 235 conditions per place. [2022-11-16 11:14:35,476 INFO L137 encePairwiseOnDemand]: 274/278 looper letters, 14 selfloop transitions, 4 changer transitions 0/243 dead transitions. [2022-11-16 11:14:35,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 243 transitions, 705 flow [2022-11-16 11:14:35,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:35,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 730 transitions. [2022-11-16 11:14:35,478 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8752997601918465 [2022-11-16 11:14:35,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 730 transitions. [2022-11-16 11:14:35,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 730 transitions. [2022-11-16 11:14:35,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:35,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 730 transitions. [2022-11-16 11:14:35,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:35,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:35,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:35,483 INFO L175 Difference]: Start difference. First operand has 227 places, 238 transitions, 657 flow. Second operand 3 states and 730 transitions. [2022-11-16 11:14:35,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 243 transitions, 705 flow [2022-11-16 11:14:35,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 243 transitions, 698 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:14:35,489 INFO L231 Difference]: Finished difference. Result has 227 places, 241 transitions, 678 flow [2022-11-16 11:14:35,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=227, PETRI_TRANSITIONS=241} [2022-11-16 11:14:35,490 INFO L288 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2022-11-16 11:14:35,490 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 241 transitions, 678 flow [2022-11-16 11:14:35,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:35,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:35,491 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:35,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:14:35,491 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 11:14:35,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:35,492 INFO L85 PathProgramCache]: Analyzing trace with hash -951384008, now seen corresponding path program 2 times [2022-11-16 11:14:35,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:35,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159783470] [2022-11-16 11:14:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:35,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:14:35,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:14:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:14:35,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:14:35,576 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:14:35,577 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-11-16 11:14:35,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-16 11:14:35,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-16 11:14:35,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-16 11:14:35,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-16 11:14:35,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-16 11:14:35,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-16 11:14:35,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-16 11:14:35,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-16 11:14:35,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-16 11:14:35,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-16 11:14:35,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-16 11:14:35,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-16 11:14:35,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-16 11:14:35,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-16 11:14:35,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-16 11:14:35,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-16 11:14:35,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-16 11:14:35,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-16 11:14:35,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-11-16 11:14:35,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-16 11:14:35,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-16 11:14:35,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-16 11:14:35,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-16 11:14:35,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-16 11:14:35,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-16 11:14:35,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-16 11:14:35,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-16 11:14:35,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-16 11:14:35,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-16 11:14:35,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-16 11:14:35,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:14:35,585 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:35,591 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:14:35,592 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:14:35,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:14:35 BasicIcfg [2022-11-16 11:14:35,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:14:35,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:14:35,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:14:35,710 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:14:35,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:14:29" (3/4) ... [2022-11-16 11:14:35,714 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:14:35,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:14:35,715 INFO L158 Benchmark]: Toolchain (without parser) took 8634.62ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 102.2MB in the beginning and 138.9MB in the end (delta: -36.8MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2022-11-16 11:14:35,716 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory was 122.1MB in the beginning and 122.0MB in the end (delta: 142.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:14:35,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1090.40ms. Allocated memory is still 140.5MB. Free memory was 102.0MB in the beginning and 65.3MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-16 11:14:35,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.12ms. Allocated memory is still 140.5MB. Free memory was 65.3MB in the beginning and 61.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:14:35,717 INFO L158 Benchmark]: Boogie Preprocessor took 69.82ms. Allocated memory is still 140.5MB. Free memory was 61.5MB in the beginning and 58.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:14:35,717 INFO L158 Benchmark]: RCFGBuilder took 943.16ms. Allocated memory is still 140.5MB. Free memory was 58.4MB in the beginning and 91.6MB in the end (delta: -33.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-11-16 11:14:35,720 INFO L158 Benchmark]: TraceAbstraction took 6405.48ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 91.1MB in the beginning and 140.0MB in the end (delta: -48.8MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2022-11-16 11:14:35,720 INFO L158 Benchmark]: Witness Printer took 6.62ms. Allocated memory is still 247.5MB. Free memory was 140.0MB in the beginning and 138.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:14:35,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory was 122.1MB in the beginning and 122.0MB in the end (delta: 142.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1090.40ms. Allocated memory is still 140.5MB. Free memory was 102.0MB in the beginning and 65.3MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.12ms. Allocated memory is still 140.5MB. Free memory was 65.3MB in the beginning and 61.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.82ms. Allocated memory is still 140.5MB. Free memory was 61.5MB in the beginning and 58.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 943.16ms. Allocated memory is still 140.5MB. Free memory was 58.4MB in the beginning and 91.6MB in the end (delta: -33.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6405.48ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 91.1MB in the beginning and 140.0MB in the end (delta: -48.8MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * Witness Printer took 6.62ms. Allocated memory is still 247.5MB. Free memory was 140.0MB in the beginning and 138.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1808]: Data race detected Data race detected The following path leads to a data race: [L1799] 0 time_t end_time; VAL [end_time=0] [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [end_time=0, mutex={27:0}] [L1798] 0 long counter; VAL [counter=0, end_time=0, mutex={27:0}] [L1836] 0 int status; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, end_time=0, mutex={27:0}] [L1837] 0 pthread_t counter_thread_id; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={29:0}, end_time=0, mutex={27:0}] [L1838] 0 pthread_t monitor_thread_id; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={29:0}, end_time=0, monitor_thread_id={28:0}, mutex={27:0}] [L1839] 0 end_time = time (((void *)0)) + 60 VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={29:0}, end_time=60, end_time = time (((void *)0)) + 60=1150, monitor_thread_id={28:0}, mutex={27:0}, time (((void *)0))=0] [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={29:0}, end_time=60, monitor_thread_id={28:0}, mutex={27:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={29:0}, end_time=60, monitor_thread_id={28:0}, mutex={27:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=0, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1, status=0] [L1841] COND FALSE 0 !(status != 0) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={29:0}, end_time=60, monitor_thread_id={28:0}, mutex={27:0}, status=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={29:0}, end_time=60, monitor_thread_id={28:0}, mutex={27:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=0, status=0] [L1801] 1 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}] [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}, time (((void *)0))=0] [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}, time (((void *)0))=0] [L1804] 1 status = pthread_mutex_lock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}, pthread_mutex_lock (&mutex)=0, status=0] [L1805] COND FALSE 1 !(status != 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}, status=0] [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}, spin=0, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, mutex={27:0}, spin=0, status=0] [L1817] 2 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, mutex={27:0}, spin=0, status=0] [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=0] [L1819] 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=0, time (((void *)0))=0] [L1819] COND TRUE 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=0, time (((void *)0))=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, misses=0, mutex={27:0}, pthread_mutex_trylock (&mutex)=16, spin=0, status=0, status=16] [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=16, status=0] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=0, status=16] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1154, counter++=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=16, status=0] Now there is a data race on ~counter~0 between C: counter++ [1830] and C: counter++ [1808] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 361 locations, 31 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 99 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=678occurred in iteration=9, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 836 NumberOfCodeBlocks, 836 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 720 ConstructedInterpolants, 0 QuantifiedInterpolants, 943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:14:35,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89209288-38f6-451d-8170-9326613602c6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE