./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 5e519f3a 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_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/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_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-5e519f3 [2022-11-02 20:16:35,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:16:35,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:16:35,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:16:35,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:16:35,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:16:35,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:16:35,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:16:35,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:16:35,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:16:35,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:16:35,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:16:35,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:16:35,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:16:35,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:16:35,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:16:35,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:16:35,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:16:35,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:16:35,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:16:35,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:16:35,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:16:35,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:16:35,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:16:35,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:16:35,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:16:35,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:16:35,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:16:35,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:16:35,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:16:35,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:16:35,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:16:35,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:16:35,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:16:35,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:16:35,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:16:35,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:16:35,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:16:35,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:16:35,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:16:35,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:16:35,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:16:35,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:16:35,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:16:35,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:16:35,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:16:35,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:16:35,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:16:35,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:16:35,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:16:35,992 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:16:35,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:16:35,993 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:16:35,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:16:35,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:16:35,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:16:35,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:16:35,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:16:35,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:16:35,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:16:35,995 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:16:35,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:16:35,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:16:35,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:16:35,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:16:35,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:16:35,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:16:35,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:16:35,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:35,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:16:35,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:16:35,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:16:35,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:16:35,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:16:35,998 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:16:35,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:16:35,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:16:35,998 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_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-11-02 20:16:36,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:16:36,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:16:36,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:16:36,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:16:36,323 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:16:36,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-02 20:16:36,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/data/ec8061305/7ea06aebd84d406482745e370c4f17f9/FLAGa9f82b84e [2022-11-02 20:16:37,099 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:16:37,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-02 20:16:37,123 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/data/ec8061305/7ea06aebd84d406482745e370c4f17f9/FLAGa9f82b84e [2022-11-02 20:16:37,326 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/data/ec8061305/7ea06aebd84d406482745e370c4f17f9 [2022-11-02 20:16:37,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:16:37,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:16:37,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:37,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:16:37,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:16:37,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:37" (1/1) ... [2022-11-02 20:16:37,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753f3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:37, skipping insertion in model container [2022-11-02 20:16:37,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:37" (1/1) ... [2022-11-02 20:16:37,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:16:37,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:16:38,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:38,526 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:16:38,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:38,702 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:16:38,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38 WrapperNode [2022-11-02 20:16:38,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:38,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:38,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:16:38,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:16:38,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,770 INFO L138 Inliner]: procedures = 524, calls = 61, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2022-11-02 20:16:38,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:38,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:16:38,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:16:38,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:16:38,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,815 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:16:38,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:16:38,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:16:38,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:16:38,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (1/1) ... [2022-11-02 20:16:38,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:38,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:38,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:38,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:16:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-02 20:16:38,919 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-02 20:16:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-02 20:16:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-02 20:16:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-02 20:16:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-02 20:16:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:16:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:16:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:16:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:16:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:16:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:16:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:16:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-02 20:16:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-02 20:16:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:16:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:16:38,924 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:16:39,361 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:16:39,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:16:39,790 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:16:39,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:16:39,811 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-02 20:16:39,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:39 BoogieIcfgContainer [2022-11-02 20:16:39,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:16:39,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:16:39,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:16:39,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:16:39,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:16:37" (1/3) ... [2022-11-02 20:16:39,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3f296f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:39, skipping insertion in model container [2022-11-02 20:16:39,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:38" (2/3) ... [2022-11-02 20:16:39,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3f296f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:39, skipping insertion in model container [2022-11-02 20:16:39,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:39" (3/3) ... [2022-11-02 20:16:39,828 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-11-02 20:16:39,844 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:16:39,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:16:39,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-02 20:16:39,855 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:16:39,990 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:16:40,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 278 transitions, 572 flow [2022-11-02 20:16:40,151 INFO L130 PetriNetUnfolder]: 31/276 cut-off events. [2022-11-02 20:16:40,152 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:16:40,168 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 659 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. [2022-11-02 20:16:40,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 278 transitions, 572 flow [2022-11-02 20:16:40,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 265 transitions, 542 flow [2022-11-02 20:16:40,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:16:40,195 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;@7b9554e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:16:40,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-02 20:16:40,208 INFO L130 PetriNetUnfolder]: 0/54 cut-off events. [2022-11-02 20:16:40,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:16:40,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:40,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:40,210 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)] === [2022-11-02 20:16:40,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:40,216 INFO L85 PathProgramCache]: Analyzing trace with hash -330155688, now seen corresponding path program 1 times [2022-11-02 20:16:40,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:40,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556295080] [2022-11-02 20:16:40,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:40,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:40,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:40,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556295080] [2022-11-02 20:16:40,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556295080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:40,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:40,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:40,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218574019] [2022-11-02 20:16:40,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:40,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:40,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:40,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:40,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:40,863 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 278 [2022-11-02 20:16:40,868 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) [2022-11-02 20:16:40,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:40,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 278 [2022-11-02 20:16:40,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:41,040 INFO L130 PetriNetUnfolder]: 33/578 cut-off events. [2022-11-02 20:16:41,040 INFO L131 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2022-11-02 20:16:41,046 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 3145 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. [2022-11-02 20:16:41,050 INFO L137 encePairwiseOnDemand]: 257/278 looper letters, 13 selfloop transitions, 2 changer transitions 3/231 dead transitions. [2022-11-02 20:16:41,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 231 transitions, 504 flow [2022-11-02 20:16:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:41,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2022-11-02 20:16:41,075 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8860911270983214 [2022-11-02 20:16:41,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2022-11-02 20:16:41,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2022-11-02 20:16:41,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:41,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2022-11-02 20:16:41,087 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) [2022-11-02 20:16:41,094 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) [2022-11-02 20:16:41,096 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) [2022-11-02 20:16:41,098 INFO L175 Difference]: Start difference. First operand has 243 places, 265 transitions, 542 flow. Second operand 3 states and 739 transitions. [2022-11-02 20:16:41,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 231 transitions, 504 flow [2022-11-02 20:16:41,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 231 transitions, 496 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:16:41,117 INFO L231 Difference]: Finished difference. Result has 232 places, 228 transitions, 464 flow [2022-11-02 20:16:41,120 INFO L270 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} [2022-11-02 20:16:41,124 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -11 predicate places. [2022-11-02 20:16:41,124 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 228 transitions, 464 flow [2022-11-02 20:16:41,125 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) [2022-11-02 20:16:41,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:41,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:41,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:16:41,126 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)] === [2022-11-02 20:16:41,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:41,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1172432305, now seen corresponding path program 1 times [2022-11-02 20:16:41,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:41,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994894421] [2022-11-02 20:16:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:41,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:41,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:41,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:41,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994894421] [2022-11-02 20:16:41,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994894421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:41,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:41,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:41,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474938513] [2022-11-02 20:16:41,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:41,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:41,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:41,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:41,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:41,264 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 278 [2022-11-02 20:16:41,265 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) [2022-11-02 20:16:41,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:41,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 278 [2022-11-02 20:16:41,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:41,437 INFO L130 PetriNetUnfolder]: 23/534 cut-off events. [2022-11-02 20:16:41,438 INFO L131 PetriNetUnfolder]: For 5/11 co-relation queries the response was YES. [2022-11-02 20:16:41,442 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. [2022-11-02 20:16:41,445 INFO L137 encePairwiseOnDemand]: 274/278 looper letters, 11 selfloop transitions, 2 changer transitions 0/229 dead transitions. [2022-11-02 20:16:41,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 229 transitions, 493 flow [2022-11-02 20:16:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2022-11-02 20:16:41,451 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8741007194244604 [2022-11-02 20:16:41,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2022-11-02 20:16:41,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2022-11-02 20:16:41,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:41,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2022-11-02 20:16:41,456 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) [2022-11-02 20:16:41,461 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) [2022-11-02 20:16:41,462 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) [2022-11-02 20:16:41,462 INFO L175 Difference]: Start difference. First operand has 232 places, 228 transitions, 464 flow. Second operand 3 states and 729 transitions. [2022-11-02 20:16:41,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 229 transitions, 493 flow [2022-11-02 20:16:41,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 229 transitions, 489 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:16:41,475 INFO L231 Difference]: Finished difference. Result has 228 places, 228 transitions, 470 flow [2022-11-02 20:16:41,476 INFO L270 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} [2022-11-02 20:16:41,477 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -15 predicate places. [2022-11-02 20:16:41,477 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 228 transitions, 470 flow [2022-11-02 20:16:41,478 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) [2022-11-02 20:16:41,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:41,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:41,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:16:41,480 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)] === [2022-11-02 20:16:41,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:41,482 INFO L85 PathProgramCache]: Analyzing trace with hash -887398033, now seen corresponding path program 1 times [2022-11-02 20:16:41,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:41,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327746818] [2022-11-02 20:16:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:41,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:41,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:41,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327746818] [2022-11-02 20:16:41,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327746818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:41,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:41,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:41,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885155553] [2022-11-02 20:16:41,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:41,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:41,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:41,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:41,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:41,622 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 278 [2022-11-02 20:16:41,623 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) [2022-11-02 20:16:41,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:41,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 278 [2022-11-02 20:16:41,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:41,786 INFO L130 PetriNetUnfolder]: 136/644 cut-off events. [2022-11-02 20:16:41,786 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:16:41,790 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 3832 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. [2022-11-02 20:16:41,794 INFO L137 encePairwiseOnDemand]: 262/278 looper letters, 17 selfloop transitions, 7 changer transitions 8/229 dead transitions. [2022-11-02 20:16:41,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 229 transitions, 530 flow [2022-11-02 20:16:41,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2022-11-02 20:16:41,800 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8453237410071942 [2022-11-02 20:16:41,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2022-11-02 20:16:41,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2022-11-02 20:16:41,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:41,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2022-11-02 20:16:41,803 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) [2022-11-02 20:16:41,805 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) [2022-11-02 20:16:41,806 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) [2022-11-02 20:16:41,806 INFO L175 Difference]: Start difference. First operand has 228 places, 228 transitions, 470 flow. Second operand 3 states and 705 transitions. [2022-11-02 20:16:41,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 229 transitions, 530 flow [2022-11-02 20:16:41,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 229 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:16:41,813 INFO L231 Difference]: Finished difference. Result has 223 places, 219 transitions, 482 flow [2022-11-02 20:16:41,813 INFO L270 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} [2022-11-02 20:16:41,817 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -20 predicate places. [2022-11-02 20:16:41,817 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 219 transitions, 482 flow [2022-11-02 20:16:41,818 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) [2022-11-02 20:16:41,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:41,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:41,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:16:41,819 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)] === [2022-11-02 20:16:41,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:41,820 INFO L85 PathProgramCache]: Analyzing trace with hash 339946526, now seen corresponding path program 1 times [2022-11-02 20:16:41,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:41,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99829576] [2022-11-02 20:16:41,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:41,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:41,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:41,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:41,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99829576] [2022-11-02 20:16:41,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99829576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:41,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:41,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:41,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926219255] [2022-11-02 20:16:41,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:41,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:41,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:41,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:41,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:41,999 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 278 [2022-11-02 20:16:42,001 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) [2022-11-02 20:16:42,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:42,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 278 [2022-11-02 20:16:42,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:42,282 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)]) [2022-11-02 20:16:42,282 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:42,283 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-02 20:16:42,283 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:42,283 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:42,292 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][110], [271#true, 33#L1843-3true, 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 263#(= |#race~end_time~0| 0)]) [2022-11-02 20:16:42,292 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:42,292 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-02 20:16:42,292 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:42,292 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:42,300 INFO L381 tUnfolder$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, Black: 261#true, 76#L1819-3true, 50#L1803-3true, 266#true, 263#(= |#race~end_time~0| 0)]) [2022-11-02 20:16:42,303 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-02 20:16:42,304 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-02 20:16:42,304 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:42,304 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:42,304 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-02 20:16:42,332 INFO L381 tUnfolder$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][178], [271#true, 33#L1843-3true, 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 263#(= |#race~end_time~0| 0), 121#L1824-2true, Black: 266#true]) [2022-11-02 20:16:42,333 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-02 20:16:42,333 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-02 20:16:42,333 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:42,338 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-02 20:16:42,345 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][152], [271#true, 33#L1843-3true, 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 263#(= |#race~end_time~0| 0), 121#L1824-2true, Black: 266#true]) [2022-11-02 20:16:42,346 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-02 20:16:42,346 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:42,346 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-02 20:16:42,346 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-02 20:16:42,360 INFO L381 tUnfolder$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][152], [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, 121#L1824-2true]) [2022-11-02 20:16:42,361 INFO L383 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-11-02 20:16:42,361 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-02 20:16:42,361 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-02 20:16:42,361 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-02 20:16:42,389 INFO L130 PetriNetUnfolder]: 218/1608 cut-off events. [2022-11-02 20:16:42,389 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-02 20:16:42,402 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 50. Compared 12181 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. [2022-11-02 20:16:42,411 INFO L137 encePairwiseOnDemand]: 267/278 looper letters, 24 selfloop transitions, 8 changer transitions 0/233 dead transitions. [2022-11-02 20:16:42,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 233 transitions, 576 flow [2022-11-02 20:16:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:42,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 731 transitions. [2022-11-02 20:16:42,414 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8764988009592326 [2022-11-02 20:16:42,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 731 transitions. [2022-11-02 20:16:42,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 731 transitions. [2022-11-02 20:16:42,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:42,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 731 transitions. [2022-11-02 20:16:42,418 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) [2022-11-02 20:16:42,420 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) [2022-11-02 20:16:42,421 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) [2022-11-02 20:16:42,422 INFO L175 Difference]: Start difference. First operand has 223 places, 219 transitions, 482 flow. Second operand 3 states and 731 transitions. [2022-11-02 20:16:42,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 233 transitions, 576 flow [2022-11-02 20:16:42,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 233 transitions, 576 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:16:42,428 INFO L231 Difference]: Finished difference. Result has 221 places, 227 transitions, 552 flow [2022-11-02 20:16:42,429 INFO L270 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} [2022-11-02 20:16:42,430 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -22 predicate places. [2022-11-02 20:16:42,430 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 227 transitions, 552 flow [2022-11-02 20:16:42,431 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) [2022-11-02 20:16:42,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:42,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:42,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:16:42,432 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)] === [2022-11-02 20:16:42,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:42,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1605012978, now seen corresponding path program 1 times [2022-11-02 20:16:42,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:42,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025915033] [2022-11-02 20:16:42,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:42,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:43,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:43,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:43,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025915033] [2022-11-02 20:16:43,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025915033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:43,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:43,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:43,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505237916] [2022-11-02 20:16:43,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:43,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:43,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:43,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:43,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:43,253 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 278 [2022-11-02 20:16:43,255 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) [2022-11-02 20:16:43,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:43,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 278 [2022-11-02 20:16:43,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:43,558 INFO L130 PetriNetUnfolder]: 110/1125 cut-off events. [2022-11-02 20:16:43,559 INFO L131 PetriNetUnfolder]: For 40/68 co-relation queries the response was YES. [2022-11-02 20:16:43,569 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 7489 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. [2022-11-02 20:16:43,573 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 14 selfloop transitions, 4 changer transitions 0/226 dead transitions. [2022-11-02 20:16:43,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 226 transitions, 586 flow [2022-11-02 20:16:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:16:43,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1393 transitions. [2022-11-02 20:16:43,578 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8351318944844125 [2022-11-02 20:16:43,578 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1393 transitions. [2022-11-02 20:16:43,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1393 transitions. [2022-11-02 20:16:43,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:43,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1393 transitions. [2022-11-02 20:16:43,583 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) [2022-11-02 20:16:43,587 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) [2022-11-02 20:16:43,589 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) [2022-11-02 20:16:43,589 INFO L175 Difference]: Start difference. First operand has 221 places, 227 transitions, 552 flow. Second operand 6 states and 1393 transitions. [2022-11-02 20:16:43,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 226 transitions, 586 flow [2022-11-02 20:16:43,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 226 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:16:43,597 INFO L231 Difference]: Finished difference. Result has 223 places, 226 transitions, 542 flow [2022-11-02 20:16:43,598 INFO L270 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} [2022-11-02 20:16:43,601 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -20 predicate places. [2022-11-02 20:16:43,601 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 226 transitions, 542 flow [2022-11-02 20:16:43,602 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) [2022-11-02 20:16:43,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:43,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:43,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:16:43,603 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)] === [2022-11-02 20:16:43,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1807045737, now seen corresponding path program 1 times [2022-11-02 20:16:43,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:43,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579316660] [2022-11-02 20:16:43,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:43,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:43,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:43,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579316660] [2022-11-02 20:16:43,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579316660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:43,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:43,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:43,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178303298] [2022-11-02 20:16:43,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:43,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:43,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:43,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:43,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:43,749 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 278 [2022-11-02 20:16:43,750 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) [2022-11-02 20:16:43,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:43,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 278 [2022-11-02 20:16:43,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:44,080 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [277#true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-02 20:16:44,080 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-02 20:16:44,081 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-02 20:16:44,083 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:44,083 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:44,102 INFO L381 tUnfolder$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), 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-02 20:16:44,103 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:44,103 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-02 20:16:44,103 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-02 20:16:44,103 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:44,103 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:44,111 INFO L381 tUnfolder$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)]) [2022-11-02 20:16:44,113 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:44,113 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:44,113 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-02 20:16:44,114 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:44,170 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([712] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][175], [277#true, 33#L1843-3true, Black: 273#(= |#race~counter~0| 0), 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 263#(= |#race~end_time~0| 0), 121#L1824-2true, Black: 266#true]) [2022-11-02 20:16:44,171 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-02 20:16:44,171 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-02 20:16:44,171 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:44,171 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-02 20:16:44,176 INFO L381 tUnfolder$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], [277#true, 33#L1843-3true, 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), 121#L1824-2true, Black: 266#true]) [2022-11-02 20:16:44,176 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-02 20:16:44,176 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:44,177 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-02 20:16:44,177 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-02 20:16:44,194 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][148], [177#L1845-5true, 277#true, Black: 273#(= |#race~counter~0| 0), 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 284#true, 263#(= |#race~end_time~0| 0), 121#L1824-2true, Black: 266#true]) [2022-11-02 20:16:44,194 INFO L383 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-11-02 20:16:44,194 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-02 20:16:44,194 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-02 20:16:44,194 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-02 20:16:44,219 INFO L130 PetriNetUnfolder]: 266/1958 cut-off events. [2022-11-02 20:16:44,219 INFO L131 PetriNetUnfolder]: For 134/173 co-relation queries the response was YES. [2022-11-02 20:16:44,235 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 63. Compared 15872 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. [2022-11-02 20:16:44,244 INFO L137 encePairwiseOnDemand]: 271/278 looper letters, 35 selfloop transitions, 10 changer transitions 0/243 dead transitions. [2022-11-02 20:16:44,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 243 transitions, 691 flow [2022-11-02 20:16:44,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:44,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 723 transitions. [2022-11-02 20:16:44,247 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8669064748201439 [2022-11-02 20:16:44,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 723 transitions. [2022-11-02 20:16:44,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 723 transitions. [2022-11-02 20:16:44,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:44,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 723 transitions. [2022-11-02 20:16:44,251 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) [2022-11-02 20:16:44,253 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) [2022-11-02 20:16:44,254 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) [2022-11-02 20:16:44,254 INFO L175 Difference]: Start difference. First operand has 223 places, 226 transitions, 542 flow. Second operand 3 states and 723 transitions. [2022-11-02 20:16:44,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 243 transitions, 691 flow [2022-11-02 20:16:44,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 243 transitions, 684 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:16:44,261 INFO L231 Difference]: Finished difference. Result has 223 places, 234 transitions, 621 flow [2022-11-02 20:16:44,262 INFO L270 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} [2022-11-02 20:16:44,265 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -20 predicate places. [2022-11-02 20:16:44,265 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 234 transitions, 621 flow [2022-11-02 20:16:44,266 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) [2022-11-02 20:16:44,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:44,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:44,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:16:44,266 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)] === [2022-11-02 20:16:44,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:44,267 INFO L85 PathProgramCache]: Analyzing trace with hash -391105120, now seen corresponding path program 1 times [2022-11-02 20:16:44,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:44,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142236759] [2022-11-02 20:16:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:44,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:44,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:44,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142236759] [2022-11-02 20:16:44,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142236759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:44,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:44,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:44,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113975514] [2022-11-02 20:16:44,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:44,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:44,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:44,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:44,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:44,369 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 278 [2022-11-02 20:16:44,370 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) [2022-11-02 20:16:44,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:44,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 278 [2022-11-02 20:16:44,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:44,630 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, 290#true, 284#true, 263#(= |#race~end_time~0| 0)]) [2022-11-02 20:16:44,630 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-02 20:16:44,630 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-02 20:16:44,630 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:44,630 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:44,643 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([753] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][118], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, 76#L1819-3true, Black: 261#true, 50#L1803-3true, 266#true, 284#true, 290#true, 263#(= |#race~end_time~0| 0)]) [2022-11-02 20:16:44,643 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:44,643 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-02 20:16:44,643 INFO L386 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-11-02 20:16:44,644 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-02 20:16:44,653 INFO L381 tUnfolder$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)]) [2022-11-02 20:16:44,653 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:44,653 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-02 20:16:44,654 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:44,654 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:44,654 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-02 20:16:44,662 INFO L381 tUnfolder$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)]) [2022-11-02 20:16:44,662 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:44,662 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-02 20:16:44,663 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-02 20:16:44,663 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-02 20:16:44,719 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([712] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][175], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 33#L1843-3true, 268#(= |#race~stderr~0| 0), Black: 273#(= |#race~counter~0| 0), 16#L1811-2true, Black: 261#true, 290#true, 284#true, 263#(= |#race~end_time~0| 0), 121#L1824-2true, Black: 266#true]) [2022-11-02 20:16:44,719 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-02 20:16:44,719 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:44,719 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-02 20:16:44,719 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-02 20:16:44,725 INFO L381 tUnfolder$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][149], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 33#L1843-3true, 268#(= |#race~stderr~0| 0), Black: 273#(= |#race~counter~0| 0), 16#L1811-2true, Black: 261#true, 290#true, 284#true, 263#(= |#race~end_time~0| 0), 121#L1824-2true, Black: 266#true]) [2022-11-02 20:16:44,725 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-02 20:16:44,725 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:44,725 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-02 20:16:44,725 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-02 20:16:44,743 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([791] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][149], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 177#L1845-5true, Black: 273#(= |#race~counter~0| 0), 268#(= |#race~stderr~0| 0), 16#L1811-2true, Black: 261#true, 290#true, 284#true, 263#(= |#race~end_time~0| 0), Black: 266#true, 121#L1824-2true]) [2022-11-02 20:16:44,743 INFO L383 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-11-02 20:16:44,743 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-02 20:16:44,743 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-02 20:16:44,743 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-02 20:16:44,772 INFO L130 PetriNetUnfolder]: 287/1942 cut-off events. [2022-11-02 20:16:44,772 INFO L131 PetriNetUnfolder]: For 487/603 co-relation queries the response was YES. [2022-11-02 20:16:44,789 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 15416 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. [2022-11-02 20:16:44,800 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 38 selfloop transitions, 9 changer transitions 0/246 dead transitions. [2022-11-02 20:16:44,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 246 transitions, 768 flow [2022-11-02 20:16:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:44,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:44,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2022-11-02 20:16:44,803 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8633093525179856 [2022-11-02 20:16:44,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 720 transitions. [2022-11-02 20:16:44,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 720 transitions. [2022-11-02 20:16:44,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:44,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 720 transitions. [2022-11-02 20:16:44,806 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) [2022-11-02 20:16:44,808 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) [2022-11-02 20:16:44,811 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) [2022-11-02 20:16:44,811 INFO L175 Difference]: Start difference. First operand has 223 places, 234 transitions, 621 flow. Second operand 3 states and 720 transitions. [2022-11-02 20:16:44,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 246 transitions, 768 flow [2022-11-02 20:16:44,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 246 transitions, 742 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:16:44,820 INFO L231 Difference]: Finished difference. Result has 225 places, 239 transitions, 669 flow [2022-11-02 20:16:44,820 INFO L270 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} [2022-11-02 20:16:44,821 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -18 predicate places. [2022-11-02 20:16:44,821 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 239 transitions, 669 flow [2022-11-02 20:16:44,822 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) [2022-11-02 20:16:44,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:44,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:44,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:16:44,823 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)] === [2022-11-02 20:16:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1477232528, now seen corresponding path program 1 times [2022-11-02 20:16:44,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:44,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193694561] [2022-11-02 20:16:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:44,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:45,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:45,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193694561] [2022-11-02 20:16:45,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193694561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:45,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:45,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:45,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678302421] [2022-11-02 20:16:45,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:45,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:45,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:45,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:45,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:45,623 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 278 [2022-11-02 20:16:45,625 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) [2022-11-02 20:16:45,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:45,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 278 [2022-11-02 20:16:45,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:45,866 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]) [2022-11-02 20:16:45,867 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-02 20:16:45,867 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-02 20:16:45,867 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-02 20:16:45,867 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:45,883 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([713] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][196], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, 15#L1825-1true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 290#true, 263#(= |#race~end_time~0| 0), 23#L1808-7true]) [2022-11-02 20:16:45,883 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:45,884 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-02 20:16:45,884 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-02 20:16:45,884 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-02 20:16:45,942 INFO L130 PetriNetUnfolder]: 198/1577 cut-off events. [2022-11-02 20:16:45,942 INFO L131 PetriNetUnfolder]: For 245/309 co-relation queries the response was YES. [2022-11-02 20:16:45,956 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 52. Compared 11924 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. [2022-11-02 20:16:45,963 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 13 selfloop transitions, 4 changer transitions 0/238 dead transitions. [2022-11-02 20:16:45,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 238 transitions, 701 flow [2022-11-02 20:16:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:45,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:16:45,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1392 transitions. [2022-11-02 20:16:45,968 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8345323741007195 [2022-11-02 20:16:45,968 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1392 transitions. [2022-11-02 20:16:45,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1392 transitions. [2022-11-02 20:16:45,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:45,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1392 transitions. [2022-11-02 20:16:45,973 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) [2022-11-02 20:16:45,977 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) [2022-11-02 20:16:45,978 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) [2022-11-02 20:16:45,978 INFO L175 Difference]: Start difference. First operand has 225 places, 239 transitions, 669 flow. Second operand 6 states and 1392 transitions. [2022-11-02 20:16:45,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 238 transitions, 701 flow [2022-11-02 20:16:45,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 238 transitions, 683 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:16:45,986 INFO L231 Difference]: Finished difference. Result has 227 places, 238 transitions, 657 flow [2022-11-02 20:16:45,986 INFO L270 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} [2022-11-02 20:16:45,989 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2022-11-02 20:16:45,989 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 238 transitions, 657 flow [2022-11-02 20:16:45,991 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) [2022-11-02 20:16:45,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:45,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:45,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:16:45,991 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)] === [2022-11-02 20:16:45,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:45,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1688778781, now seen corresponding path program 1 times [2022-11-02 20:16:45,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:45,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904297583] [2022-11-02 20:16:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:46,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:46,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:46,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904297583] [2022-11-02 20:16:46,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904297583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:46,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:46,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:46,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074941988] [2022-11-02 20:16:46,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:46,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:46,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:46,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:46,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:46,357 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 278 [2022-11-02 20:16:46,358 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) [2022-11-02 20:16:46,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:46,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 278 [2022-11-02 20:16:46,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:46,637 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][203], [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]) [2022-11-02 20:16:46,637 INFO L383 tUnfolder$Statistics]: this new event has 123 ancestors and is cut-off event [2022-11-02 20:16:46,638 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-02 20:16:46,638 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-02 20:16:46,638 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-02 20:16:46,658 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([713] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][212], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 15#L1825-1true, 33#L1843-3true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 263#(= |#race~end_time~0| 0), 81#L1808-2true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0))]) [2022-11-02 20:16:46,659 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-02 20:16:46,659 INFO L386 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-11-02 20:16:46,659 INFO L386 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-11-02 20:16:46,659 INFO L386 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-11-02 20:16:46,686 INFO L381 tUnfolder$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][202], [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]) [2022-11-02 20:16:46,686 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-02 20:16:46,687 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-02 20:16:46,687 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-02 20:16:46,687 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-02 20:16:46,703 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([713] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][211], [Black: 286#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), Black: 271#true, 33#L1843-3true, 15#L1825-1true, Black: 292#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), Black: 261#true, 266#true, 296#true, 263#(= |#race~end_time~0| 0), 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 23#L1808-7true]) [2022-11-02 20:16:46,704 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-02 20:16:46,704 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-02 20:16:46,704 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-02 20:16:46,704 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-02 20:16:46,782 INFO L130 PetriNetUnfolder]: 248/2147 cut-off events. [2022-11-02 20:16:46,782 INFO L131 PetriNetUnfolder]: For 222/271 co-relation queries the response was YES. [2022-11-02 20:16:46,802 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 67. Compared 17866 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. [2022-11-02 20:16:46,812 INFO L137 encePairwiseOnDemand]: 274/278 looper letters, 14 selfloop transitions, 4 changer transitions 0/243 dead transitions. [2022-11-02 20:16:46,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 243 transitions, 705 flow [2022-11-02 20:16:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:46,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 730 transitions. [2022-11-02 20:16:46,815 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8752997601918465 [2022-11-02 20:16:46,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 730 transitions. [2022-11-02 20:16:46,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 730 transitions. [2022-11-02 20:16:46,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:46,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 730 transitions. [2022-11-02 20:16:46,818 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) [2022-11-02 20:16:46,821 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) [2022-11-02 20:16:46,821 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) [2022-11-02 20:16:46,822 INFO L175 Difference]: Start difference. First operand has 227 places, 238 transitions, 657 flow. Second operand 3 states and 730 transitions. [2022-11-02 20:16:46,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 243 transitions, 705 flow [2022-11-02 20:16:46,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 243 transitions, 698 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:16:46,829 INFO L231 Difference]: Finished difference. Result has 227 places, 241 transitions, 678 flow [2022-11-02 20:16:46,830 INFO L270 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} [2022-11-02 20:16:46,831 INFO L287 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2022-11-02 20:16:46,831 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 241 transitions, 678 flow [2022-11-02 20:16:46,832 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) [2022-11-02 20:16:46,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:46,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:46,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:16:46,833 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)] === [2022-11-02 20:16:46,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1092320883, now seen corresponding path program 2 times [2022-11-02 20:16:46,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:46,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353840372] [2022-11-02 20:16:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:46,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:46,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:46,925 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:16:46,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-11-02 20:16:46,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-02 20:16:46,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-02 20:16:46,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-02 20:16:46,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-02 20:16:46,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-02 20:16:46,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-02 20:16:46,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-02 20:16:46,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-02 20:16:46,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-02 20:16:46,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-02 20:16:46,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-02 20:16:46,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-02 20:16:46,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-02 20:16:46,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-02 20:16:46,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-02 20:16:46,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-02 20:16:46,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-02 20:16:46,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-02 20:16:46,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-11-02 20:16:46,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-02 20:16:46,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-02 20:16:46,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-02 20:16:46,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-02 20:16:46,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-02 20:16:46,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-02 20:16:46,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-02 20:16:46,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-02 20:16:46,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-02 20:16:46,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-02 20:16:46,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-02 20:16:46,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:16:46,937 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:46,944 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:16:46,944 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:16:47,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:16:47 BasicIcfg [2022-11-02 20:16:47,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:16:47,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:16:47,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:16:47,068 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:16:47,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:39" (3/4) ... [2022-11-02 20:16:47,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:16:47,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:16:47,072 INFO L158 Benchmark]: Toolchain (without parser) took 9740.73ms. Allocated memory was 148.9MB in the beginning and 295.7MB in the end (delta: 146.8MB). Free memory was 111.1MB in the beginning and 260.9MB in the end (delta: -149.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:47,073 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:47,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1368.20ms. Allocated memory is still 148.9MB. Free memory was 110.8MB in the beginning and 73.5MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-02 20:16:47,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.40ms. Allocated memory is still 148.9MB. Free memory was 73.5MB in the beginning and 70.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:16:47,074 INFO L158 Benchmark]: Boogie Preprocessor took 52.29ms. Allocated memory is still 148.9MB. Free memory was 70.7MB in the beginning and 67.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:16:47,075 INFO L158 Benchmark]: RCFGBuilder took 991.73ms. Allocated memory is still 148.9MB. Free memory was 67.2MB in the beginning and 106.9MB in the end (delta: -39.7MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2022-11-02 20:16:47,078 INFO L158 Benchmark]: TraceAbstraction took 7247.23ms. Allocated memory was 148.9MB in the beginning and 295.7MB in the end (delta: 146.8MB). Free memory was 106.0MB in the beginning and 260.9MB in the end (delta: -155.0MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. [2022-11-02 20:16:47,080 INFO L158 Benchmark]: Witness Printer took 5.77ms. Allocated memory is still 295.7MB. Free memory is still 260.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:47,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1368.20ms. Allocated memory is still 148.9MB. Free memory was 110.8MB in the beginning and 73.5MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.40ms. Allocated memory is still 148.9MB. Free memory was 73.5MB in the beginning and 70.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.29ms. Allocated memory is still 148.9MB. Free memory was 70.7MB in the beginning and 67.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 991.73ms. Allocated memory is still 148.9MB. Free memory was 67.2MB in the beginning and 106.9MB in the end (delta: -39.7MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7247.23ms. Allocated memory was 148.9MB in the beginning and 295.7MB in the end (delta: 146.8MB). Free memory was 106.0MB in the beginning and 260.9MB in the end (delta: -155.0MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. * Witness Printer took 5.77ms. Allocated memory is still 295.7MB. Free memory is still 260.9MB. 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: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex={27:0}] [L1798] 0 long counter; VAL [counter=0, mutex={27:0}] [L1799] 0 time_t end_time; VAL [counter=0, end_time=0, mutex={27:0}] [L1836] 0 int status; VAL [\old(argc)=1152, argc=1152, argv={1154:1151}, argv={1154:1151}, counter=0, end_time=0, mutex={27:0}] [L1837] 0 pthread_t counter_thread_id; VAL [\old(argc)=1152, argc=1152, argv={1154:1151}, argv={1154:1151}, 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={1154:1151}, argv={1154:1151}, 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={1154:1151}, argv={1154:1151}, 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={1154:1151}, argv={1154:1151}, 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={1154:1151}, argv={1154:1151}, 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, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=0, status=0] [L1841] COND FALSE 0 !(status != 0) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1154:1151}, argv={1154:1151}, 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={1154:1151}, argv={1154:1151}, 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] [L1817] 2 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={27:0}] [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}] [L1801] 1 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, time (((void *)0))=0] [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, time (((void *)0))=0, time (((void *)0))=0] [L1819] 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, time (((void *)0))=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=0, end_time=60, misses=0, mutex={27:0}, time (((void *)0))=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, 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}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, 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=0, end_time=60, misses=0, mutex={27:0}, pthread_mutex_lock (&mutex)=0, pthread_mutex_trylock (&mutex)=16, status=16] [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, pthread_mutex_lock (&mutex)=0, status=16] [L1804] 1 status = pthread_mutex_lock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, pthread_mutex_lock (&mutex)=0, status=0, status=16] [L1805] COND FALSE 1 !(status != 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, status=0, status=16] [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=16, status=0] [L1807] COND TRUE 1 spin < 10000000 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={27:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1153, 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++=0, counter++=1153, 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++=0, counter++=1153, 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: 6.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 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, 0.3s SatisfiabilityAnalysisTime, 2.6s 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 could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:16:47,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078430ef-4071-4898-aa54-a874c2036ff7/bin/uautomizer-Dbtcem3rbc/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