./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --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_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/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_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/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_7408f839-1eb1-4b6d-a0d2-459022024e85/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 6cbe8dd40fecf4391efe5e4ba3939c64a9fdbbfb53083def47a68bbefda43a3c --- 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 20:52:11,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:52:11,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:52:11,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:52:11,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:52:11,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:52:11,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:52:11,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:52:11,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:52:11,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:52:11,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:52:11,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:52:11,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:52:11,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:52:11,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:52:11,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:52:11,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:52:11,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:52:11,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:52:11,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:52:11,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:52:11,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:52:11,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:52:11,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:52:11,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:52:11,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:52:11,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:52:11,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:52:11,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:52:11,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:52:11,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:52:11,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:52:11,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:52:11,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:52:11,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:52:11,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:52:11,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:52:11,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:52:11,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:52:11,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:52:11,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:52:11,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:52:11,955 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:52:11,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:52:11,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:52:11,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:52:11,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:52:11,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:52:11,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:52:11,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:52:11,959 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:52:11,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:52:11,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:52:11,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:52:11,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:52:11,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:52:11,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:52:11,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:52:11,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:52:11,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:52:11,963 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:52:11,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:52:11,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:52:11,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:52:11,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:52:11,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:52:11,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:52:11,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:52:11,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:11,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:52:11,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:52:11,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:52:11,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:52:11,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:52:11,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:52:11,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:52:11,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:52:11,967 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_7408f839-1eb1-4b6d-a0d2-459022024e85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cbe8dd40fecf4391efe5e4ba3939c64a9fdbbfb53083def47a68bbefda43a3c [2022-11-02 20:52:12,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:52:12,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:52:12,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:52:12,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:52:12,351 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:52:12,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2022-11-02 20:52:12,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/data/777e80f8f/ce34e4531921449bbe0b88aac893ce16/FLAGc8288fe1e [2022-11-02 20:52:13,102 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:52:13,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2022-11-02 20:52:13,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/data/777e80f8f/ce34e4531921449bbe0b88aac893ce16/FLAGc8288fe1e [2022-11-02 20:52:13,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/data/777e80f8f/ce34e4531921449bbe0b88aac893ce16 [2022-11-02 20:52:13,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:52:13,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:52:13,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:13,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:52:13,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:52:13,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478dc63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13, skipping insertion in model container [2022-11-02 20:52:13,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:52:13,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:52:13,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[5938,5951] [2022-11-02 20:52:13,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:13,553 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:52:13,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[5938,5951] [2022-11-02 20:52:13,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:13,626 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:52:13,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13 WrapperNode [2022-11-02 20:52:13,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:13,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:13,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:52:13,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:52:13,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,694 INFO L138 Inliner]: procedures = 25, calls = 120, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 490 [2022-11-02 20:52:13,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:13,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:52:13,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:52:13,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:52:13,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:52:13,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:52:13,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:52:13,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:52:13,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (1/1) ... [2022-11-02 20:52:13,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:13,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:13,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:52:13,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408f839-1eb1-4b6d-a0d2-459022024e85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:52:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:52:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:52:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:52:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:52:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:52:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:52:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:52:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:52:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:52:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:52:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 20:52:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 20:52:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:52:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-02 20:52:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-02 20:52:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-02 20:52:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-02 20:52:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:52:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:52:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:52:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:52:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:52:13,893 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 20:52:14,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:52:14,158 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:52:15,126 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:52:15,324 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:52:15,325 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 20:52:15,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:15 BoogieIcfgContainer [2022-11-02 20:52:15,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:52:15,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:52:15,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:52:15,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:52:15,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:52:13" (1/3) ... [2022-11-02 20:52:15,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c62b528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:15, skipping insertion in model container [2022-11-02 20:52:15,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:13" (2/3) ... [2022-11-02 20:52:15,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c62b528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:15, skipping insertion in model container [2022-11-02 20:52:15,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:15" (3/3) ... [2022-11-02 20:52:15,345 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2022-11-02 20:52:15,359 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:52:15,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:52:15,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 82 error locations. [2022-11-02 20:52:15,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:52:15,603 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-02 20:52:15,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 468 places, 465 transitions, 1002 flow [2022-11-02 20:52:15,930 INFO L130 PetriNetUnfolder]: 16/425 cut-off events. [2022-11-02 20:52:15,930 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:52:15,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 425 events. 16/425 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 831 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 348. Up to 3 conditions per place. [2022-11-02 20:52:15,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 468 places, 465 transitions, 1002 flow [2022-11-02 20:52:15,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 404 transitions, 856 flow [2022-11-02 20:52:15,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:52:15,977 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;@62e47aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:52:15,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 148 error locations. [2022-11-02 20:52:15,985 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2022-11-02 20:52:15,985 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:52:15,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:15,986 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] [2022-11-02 20:52:15,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2022-11-02 20:52:15,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:15,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1237108793, now seen corresponding path program 1 times [2022-11-02 20:52:16,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:16,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357614568] [2022-11-02 20:52:16,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:16,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:16,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:16,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357614568] [2022-11-02 20:52:16,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357614568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:16,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:16,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:52:16,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380412285] [2022-11-02 20:52:16,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:16,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:52:16,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:16,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:52:16,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:52:16,365 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 469 [2022-11-02 20:52:16,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 404 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:16,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:16,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 469 [2022-11-02 20:52:16,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:26,809 INFO L130 PetriNetUnfolder]: 22009/29768 cut-off events. [2022-11-02 20:52:26,810 INFO L131 PetriNetUnfolder]: For 6481/6746 co-relation queries the response was YES. [2022-11-02 20:52:27,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65151 conditions, 29768 events. 22009/29768 cut-off events. For 6481/6746 co-relation queries the response was YES. Maximal size of possible extension queue 1561. Compared 184292 event pairs, 17472 based on Foata normal form. 3025/30930 useless extension candidates. Maximal degree in co-relation 64250. Up to 29074 conditions per place. [2022-11-02 20:52:27,744 INFO L137 encePairwiseOnDemand]: 409/469 looper letters, 59 selfloop transitions, 2 changer transitions 1/346 dead transitions. [2022-11-02 20:52:27,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 346 transitions, 862 flow [2022-11-02 20:52:27,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:52:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:52:27,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1139 transitions. [2022-11-02 20:52:27,776 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2022-11-02 20:52:27,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1139 transitions. [2022-11-02 20:52:27,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1139 transitions. [2022-11-02 20:52:27,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:27,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1139 transitions. [2022-11-02 20:52:27,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states 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 20:52:27,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:27,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:27,813 INFO L175 Difference]: Start difference. First operand has 409 places, 404 transitions, 856 flow. Second operand 3 states and 1139 transitions. [2022-11-02 20:52:27,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 346 transitions, 862 flow [2022-11-02 20:52:27,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 346 transitions, 830 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-02 20:52:27,844 INFO L231 Difference]: Finished difference. Result has 346 places, 345 transitions, 710 flow [2022-11-02 20:52:27,847 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=346, PETRI_TRANSITIONS=345} [2022-11-02 20:52:27,855 INFO L287 CegarLoopForPetriNet]: 409 programPoint places, -63 predicate places. [2022-11-02 20:52:27,855 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 345 transitions, 710 flow [2022-11-02 20:52:27,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:27,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:27,857 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] [2022-11-02 20:52:27,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:52:27,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2022-11-02 20:52:27,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:27,859 INFO L85 PathProgramCache]: Analyzing trace with hash 870960882, now seen corresponding path program 1 times [2022-11-02 20:52:27,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:27,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698059254] [2022-11-02 20:52:27,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:27,989 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 20:52:27,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:27,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698059254] [2022-11-02 20:52:27,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698059254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:27,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:27,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:52:27,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268659813] [2022-11-02 20:52:27,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:28,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:52:28,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:28,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:52:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:52:28,007 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 469 [2022-11-02 20:52:28,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 345 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:28,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:28,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 469 [2022-11-02 20:52:28,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:35,081 INFO L130 PetriNetUnfolder]: 22009/29766 cut-off events. [2022-11-02 20:52:35,090 INFO L131 PetriNetUnfolder]: For 1596/1861 co-relation queries the response was YES. [2022-11-02 20:52:35,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60442 conditions, 29766 events. 22009/29766 cut-off events. For 1596/1861 co-relation queries the response was YES. Maximal size of possible extension queue 1554. Compared 184076 event pairs, 17472 based on Foata normal form. 0/27905 useless extension candidates. Maximal degree in co-relation 60400. Up to 29074 conditions per place. [2022-11-02 20:52:35,658 INFO L137 encePairwiseOnDemand]: 466/469 looper letters, 59 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2022-11-02 20:52:35,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 344 transitions, 830 flow [2022-11-02 20:52:35,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:52:35,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:52:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1082 transitions. [2022-11-02 20:52:35,662 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7690120824449183 [2022-11-02 20:52:35,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1082 transitions. [2022-11-02 20:52:35,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1082 transitions. [2022-11-02 20:52:35,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:35,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1082 transitions. [2022-11-02 20:52:35,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.6666666666667) internal successors, (1082), 3 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states 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 20:52:35,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:35,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:35,673 INFO L175 Difference]: Start difference. First operand has 346 places, 345 transitions, 710 flow. Second operand 3 states and 1082 transitions. [2022-11-02 20:52:35,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 344 transitions, 830 flow [2022-11-02 20:52:35,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 344 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:52:35,684 INFO L231 Difference]: Finished difference. Result has 344 places, 344 transitions, 708 flow [2022-11-02 20:52:35,685 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=344, PETRI_TRANSITIONS=344} [2022-11-02 20:52:35,686 INFO L287 CegarLoopForPetriNet]: 409 programPoint places, -65 predicate places. [2022-11-02 20:52:35,687 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 344 transitions, 708 flow [2022-11-02 20:52:35,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:35,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:35,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:35,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:52:35,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2022-11-02 20:52:35,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:35,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2095894400, now seen corresponding path program 1 times [2022-11-02 20:52:35,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:35,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475330307] [2022-11-02 20:52:35,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:35,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:35,769 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 20:52:35,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:35,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475330307] [2022-11-02 20:52:35,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475330307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:35,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:35,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:52:35,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291777184] [2022-11-02 20:52:35,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:35,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:52:35,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:35,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:52:35,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:52:35,774 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 469 [2022-11-02 20:52:35,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 344 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:35,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:35,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 469 [2022-11-02 20:52:35,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:42,905 INFO L130 PetriNetUnfolder]: 22009/29765 cut-off events. [2022-11-02 20:52:42,906 INFO L131 PetriNetUnfolder]: For 1596/1861 co-relation queries the response was YES. [2022-11-02 20:52:43,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60441 conditions, 29765 events. 22009/29765 cut-off events. For 1596/1861 co-relation queries the response was YES. Maximal size of possible extension queue 1554. Compared 184905 event pairs, 17472 based on Foata normal form. 0/27905 useless extension candidates. Maximal degree in co-relation 60393. Up to 29074 conditions per place. [2022-11-02 20:52:43,577 INFO L137 encePairwiseOnDemand]: 466/469 looper letters, 59 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2022-11-02 20:52:43,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 343 transitions, 828 flow [2022-11-02 20:52:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:52:43,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:52:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1082 transitions. [2022-11-02 20:52:43,582 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7690120824449183 [2022-11-02 20:52:43,583 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1082 transitions. [2022-11-02 20:52:43,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1082 transitions. [2022-11-02 20:52:43,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:43,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1082 transitions. [2022-11-02 20:52:43,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.6666666666667) internal successors, (1082), 3 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states 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 20:52:43,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:43,594 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:43,595 INFO L175 Difference]: Start difference. First operand has 344 places, 344 transitions, 708 flow. Second operand 3 states and 1082 transitions. [2022-11-02 20:52:43,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 343 transitions, 828 flow [2022-11-02 20:52:43,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 343 transitions, 824 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:52:43,606 INFO L231 Difference]: Finished difference. Result has 343 places, 343 transitions, 706 flow [2022-11-02 20:52:43,607 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=343, PETRI_TRANSITIONS=343} [2022-11-02 20:52:43,610 INFO L287 CegarLoopForPetriNet]: 409 programPoint places, -66 predicate places. [2022-11-02 20:52:43,610 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 343 transitions, 706 flow [2022-11-02 20:52:43,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:43,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:43,612 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] [2022-11-02 20:52:43,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:52:43,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2022-11-02 20:52:43,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash 321258160, now seen corresponding path program 1 times [2022-11-02 20:52:43,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:43,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289028012] [2022-11-02 20:52:43,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:43,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:43,723 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 20:52:43,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:43,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289028012] [2022-11-02 20:52:43,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289028012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:43,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:43,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:52:43,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667694510] [2022-11-02 20:52:43,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:43,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:52:43,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:43,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:52:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:52:43,731 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 469 [2022-11-02 20:52:43,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 343 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:43,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:43,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 469 [2022-11-02 20:52:43,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:50,954 INFO L130 PetriNetUnfolder]: 22009/29764 cut-off events. [2022-11-02 20:52:50,955 INFO L131 PetriNetUnfolder]: For 1596/1861 co-relation queries the response was YES. [2022-11-02 20:52:51,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60439 conditions, 29764 events. 22009/29764 cut-off events. For 1596/1861 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 184396 event pairs, 17472 based on Foata normal form. 0/27905 useless extension candidates. Maximal degree in co-relation 60385. Up to 29073 conditions per place. [2022-11-02 20:52:51,496 INFO L137 encePairwiseOnDemand]: 466/469 looper letters, 58 selfloop transitions, 2 changer transitions 0/342 dead transitions. [2022-11-02 20:52:51,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 342 transitions, 824 flow [2022-11-02 20:52:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:52:51,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:52:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2022-11-02 20:52:51,500 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7683013503909026 [2022-11-02 20:52:51,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1081 transitions. [2022-11-02 20:52:51,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1081 transitions. [2022-11-02 20:52:51,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:51,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1081 transitions. [2022-11-02 20:52:51,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states 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 20:52:51,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:51,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 20:52:51,514 INFO L175 Difference]: Start difference. First operand has 343 places, 343 transitions, 706 flow. Second operand 3 states and 1081 transitions. [2022-11-02 20:52:51,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 342 transitions, 824 flow [2022-11-02 20:52:51,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 342 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:52:51,525 INFO L231 Difference]: Finished difference. Result has 342 places, 342 transitions, 704 flow [2022-11-02 20:52:51,526 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=342, PETRI_TRANSITIONS=342} [2022-11-02 20:52:51,527 INFO L287 CegarLoopForPetriNet]: 409 programPoint places, -67 predicate places. [2022-11-02 20:52:51,527 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 342 transitions, 704 flow [2022-11-02 20:52:51,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:52:51,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:51,529 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] [2022-11-02 20:52:51,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:52:51,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2022-11-02 20:52:51,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:51,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1061434745, now seen corresponding path program 1 times [2022-11-02 20:52:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:51,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534524331] [2022-11-02 20:52:51,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:51,607 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 20:52:51,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:51,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534524331] [2022-11-02 20:52:51,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534524331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:51,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:51,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:52:51,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636279139] [2022-11-02 20:52:51,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:51,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:52:51,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:51,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:52:51,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:52:51,613 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 469 [2022-11-02 20:52:51,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 342 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states 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 20:52:51,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:51,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 469 [2022-11-02 20:52:51,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand