./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/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_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/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_16e05544-0a1f-49b0-8677-0a81deacf0e6/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 a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f --- 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 20:31:01,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:31:01,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:31:01,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:31:01,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:31:01,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:31:01,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:31:01,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:31:01,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:31:01,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:31:01,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:31:01,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:31:01,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:31:01,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:31:01,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:31:01,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:31:01,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:31:01,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:31:01,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:31:01,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:31:01,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:31:01,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:31:01,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:31:01,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:31:01,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:31:01,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:31:01,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:31:01,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:31:01,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:31:01,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:31:01,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:31:01,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:31:01,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:31:01,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:31:01,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:31:01,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:31:01,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:31:01,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:31:01,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:31:01,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:31:01,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:31:01,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:31:01,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:31:01,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:31:01,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:31:01,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:31:01,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:31:01,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:31:01,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:31:01,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:31:01,795 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:31:01,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:31:01,796 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:31:01,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:31:01,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:31:01,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:31:01,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:31:01,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:31:01,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:31:01,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:31:01,797 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:31:01,798 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:31:01,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:31:01,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:31:01,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:31:01,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:31:01,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:31:01,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:31:01,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:31:01,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:31:01,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:31:01,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:31:01,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:31:01,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:31:01,800 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:31:01,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:31:01,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:31:01,801 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_16e05544-0a1f-49b0-8677-0a81deacf0e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2022-11-02 20:31:02,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:31:02,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:31:02,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:31:02,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:31:02,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:31:02,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-02 20:31:02,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/data/2a67d8e02/231481f8be4f40bf878253794e1b82bb/FLAG1413033e7 [2022-11-02 20:31:02,902 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:31:02,903 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-02 20:31:02,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/data/2a67d8e02/231481f8be4f40bf878253794e1b82bb/FLAG1413033e7 [2022-11-02 20:31:03,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/data/2a67d8e02/231481f8be4f40bf878253794e1b82bb [2022-11-02 20:31:03,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:31:03,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:31:03,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:31:03,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:31:03,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:31:03,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2223d410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03, skipping insertion in model container [2022-11-02 20:31:03,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:31:03,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:31:03,564 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_16e05544-0a1f-49b0-8677-0a81deacf0e6/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-02 20:31:03,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:31:03,579 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:31:03,628 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_16e05544-0a1f-49b0-8677-0a81deacf0e6/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-02 20:31:03,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:31:03,650 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:31:03,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03 WrapperNode [2022-11-02 20:31:03,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:31:03,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:31:03,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:31:03,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:31:03,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,753 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 266 [2022-11-02 20:31:03,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:31:03,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:31:03,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:31:03,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:31:03,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,851 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:31:03,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:31:03,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:31:03,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:31:03,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (1/1) ... [2022-11-02 20:31:03,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:31:03,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:31:03,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:31:03,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e05544-0a1f-49b0-8677-0a81deacf0e6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:31:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:31:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:31:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:31:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:31:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:31:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:31:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:31:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:31:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:31:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:31:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 20:31:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 20:31:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:31:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-02 20:31:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-02 20:31:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:31:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:31:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:31:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:31:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:31:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:31:03,956 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 20:31:04,149 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:31:04,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:31:05,101 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:31:05,664 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:31:05,664 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:31:05,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:31:05 BoogieIcfgContainer [2022-11-02 20:31:05,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:31:05,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:31:05,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:31:05,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:31:05,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:31:03" (1/3) ... [2022-11-02 20:31:05,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6e25df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:31:05, skipping insertion in model container [2022-11-02 20:31:05,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:03" (2/3) ... [2022-11-02 20:31:05,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6e25df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:31:05, skipping insertion in model container [2022-11-02 20:31:05,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:31:05" (3/3) ... [2022-11-02 20:31:05,690 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-11-02 20:31:05,703 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:31:05,716 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:31:05,717 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2022-11-02 20:31:05,717 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:31:05,893 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-02 20:31:05,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 303 places, 301 transitions, 642 flow [2022-11-02 20:31:06,173 INFO L130 PetriNetUnfolder]: 14/296 cut-off events. [2022-11-02 20:31:06,173 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:31:06,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 296 events. 14/296 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 425 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 221. Up to 2 conditions per place. [2022-11-02 20:31:06,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 303 places, 301 transitions, 642 flow [2022-11-02 20:31:06,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 272 transitions, 574 flow [2022-11-02 20:31:06,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:31:06,211 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;@7f6b8a39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:31:06,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2022-11-02 20:31:06,220 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2022-11-02 20:31:06,220 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:31:06,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:31:06,221 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] [2022-11-02 20:31:06,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-02 20:31:06,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:31:06,228 INFO L85 PathProgramCache]: Analyzing trace with hash -775572613, now seen corresponding path program 1 times [2022-11-02 20:31:06,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:31:06,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163455363] [2022-11-02 20:31:06,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:31:06,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:31:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:31:06,611 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 20:31:06,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:31:06,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163455363] [2022-11-02 20:31:06,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163455363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:31:06,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:31:06,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:31:06,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867800218] [2022-11-02 20:31:06,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:31:06,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:31:06,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:31:06,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:31:06,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:31:06,681 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 301 [2022-11-02 20:31:06,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 272 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:31:06,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:31:06,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 301 [2022-11-02 20:31:06,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:31:16,196 INFO L130 PetriNetUnfolder]: 14548/27453 cut-off events. [2022-11-02 20:31:16,196 INFO L131 PetriNetUnfolder]: For 2774/3201 co-relation queries the response was YES. [2022-11-02 20:31:16,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49822 conditions, 27453 events. 14548/27453 cut-off events. For 2774/3201 co-relation queries the response was YES. Maximal size of possible extension queue 1559. Compared 265659 event pairs, 12816 based on Foata normal form. 4/23147 useless extension candidates. Maximal degree in co-relation 49109. Up to 18894 conditions per place. [2022-11-02 20:31:16,704 INFO L137 encePairwiseOnDemand]: 252/301 looper letters, 40 selfloop transitions, 2 changer transitions 3/225 dead transitions. [2022-11-02 20:31:16,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 225 transitions, 564 flow [2022-11-02 20:31:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:31:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:31:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 719 transitions. [2022-11-02 20:31:16,735 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7962347729789591 [2022-11-02 20:31:16,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 719 transitions. [2022-11-02 20:31:16,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 719 transitions. [2022-11-02 20:31:16,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:31:16,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 719 transitions. [2022-11-02 20:31:16,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 20:31:16,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 20:31:16,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 20:31:16,769 INFO L175 Difference]: Start difference. First operand has 275 places, 272 transitions, 574 flow. Second operand 3 states and 719 transitions. [2022-11-02 20:31:16,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 225 transitions, 564 flow [2022-11-02 20:31:16,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 225 transitions, 544 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-02 20:31:16,809 INFO L231 Difference]: Finished difference. Result has 228 places, 222 transitions, 458 flow [2022-11-02 20:31:16,812 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=228, PETRI_TRANSITIONS=222} [2022-11-02 20:31:16,817 INFO L287 CegarLoopForPetriNet]: 275 programPoint places, -47 predicate places. [2022-11-02 20:31:16,818 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 222 transitions, 458 flow [2022-11-02 20:31:16,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:31:16,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:31:16,820 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] [2022-11-02 20:31:16,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:31:16,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-02 20:31:16,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:31:16,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1246563026, now seen corresponding path program 1 times [2022-11-02 20:31:16,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:31:16,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737062854] [2022-11-02 20:31:16,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:31:16,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:31:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:31:16,955 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 20:31:16,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:31:16,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737062854] [2022-11-02 20:31:16,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737062854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:31:16,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:31:16,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:31:16,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789575407] [2022-11-02 20:31:16,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:31:16,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:31:16,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:31:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:31:16,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:31:16,963 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 301 [2022-11-02 20:31:16,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 222 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 20:31:16,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:31:16,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 301 [2022-11-02 20:31:16,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:31:20,541 INFO L130 PetriNetUnfolder]: 6988/14261 cut-off events. [2022-11-02 20:31:20,541 INFO L131 PetriNetUnfolder]: For 236/510 co-relation queries the response was YES. [2022-11-02 20:31:20,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24125 conditions, 14261 events. 6988/14261 cut-off events. For 236/510 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 132021 event pairs, 5929 based on Foata normal form. 0/13327 useless extension candidates. Maximal degree in co-relation 24087. Up to 9094 conditions per place. [2022-11-02 20:31:20,715 INFO L137 encePairwiseOnDemand]: 294/301 looper letters, 32 selfloop transitions, 1 changer transitions 0/216 dead transitions. [2022-11-02 20:31:20,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 216 transitions, 512 flow [2022-11-02 20:31:20,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:31:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:31:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2022-11-02 20:31:20,718 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7508305647840532 [2022-11-02 20:31:20,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2022-11-02 20:31:20,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2022-11-02 20:31:20,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:31:20,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2022-11-02 20:31:20,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states 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 20:31:20,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 20:31:20,726 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 20:31:20,727 INFO L175 Difference]: Start difference. First operand has 228 places, 222 transitions, 458 flow. Second operand 3 states and 678 transitions. [2022-11-02 20:31:20,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 216 transitions, 512 flow [2022-11-02 20:31:20,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 216 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:31:20,733 INFO L231 Difference]: Finished difference. Result has 219 places, 216 transitions, 444 flow [2022-11-02 20:31:20,734 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=219, PETRI_TRANSITIONS=216} [2022-11-02 20:31:20,735 INFO L287 CegarLoopForPetriNet]: 275 programPoint places, -56 predicate places. [2022-11-02 20:31:20,736 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 216 transitions, 444 flow [2022-11-02 20:31:20,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 20:31:20,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:31:20,737 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] [2022-11-02 20:31:20,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:31:20,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-02 20:31:20,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:31:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash -432525452, now seen corresponding path program 1 times [2022-11-02 20:31:20,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:31:20,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187772219] [2022-11-02 20:31:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:31:20,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:31:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:31:20,887 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 20:31:20,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:31:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187772219] [2022-11-02 20:31:20,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187772219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:31:20,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:31:20,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:31:20,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240305923] [2022-11-02 20:31:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:31:20,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:31:20,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:31:20,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:31:20,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:31:20,893 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 301 [2022-11-02 20:31:20,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 216 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states 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 20:31:20,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:31:20,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 301 [2022-11-02 20:31:20,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:31:21,787 INFO L130 PetriNetUnfolder]: 840/2628 cut-off events. [2022-11-02 20:31:21,788 INFO L131 PetriNetUnfolder]: For 53/98 co-relation queries the response was YES. [2022-11-02 20:31:21,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3850 conditions, 2628 events. 840/2628 cut-off events. For 53/98 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 20125 event pairs, 597 based on Foata normal form. 0/2320 useless extension candidates. Maximal degree in co-relation 3813. Up to 1100 conditions per place. [2022-11-02 20:31:21,825 INFO L137 encePairwiseOnDemand]: 298/301 looper letters, 22 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2022-11-02 20:31:21,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 215 transitions, 490 flow [2022-11-02 20:31:21,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:31:21,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:31:21,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 709 transitions. [2022-11-02 20:31:21,829 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7851605758582503 [2022-11-02 20:31:21,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 709 transitions. [2022-11-02 20:31:21,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 709 transitions. [2022-11-02 20:31:21,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:31:21,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 709 transitions. [2022-11-02 20:31:21,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 20:31:21,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 20:31:21,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 20:31:21,839 INFO L175 Difference]: Start difference. First operand has 219 places, 216 transitions, 444 flow. Second operand 3 states and 709 transitions. [2022-11-02 20:31:21,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 215 transitions, 490 flow [2022-11-02 20:31:21,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 215 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:31:21,847 INFO L231 Difference]: Finished difference. Result has 219 places, 215 transitions, 445 flow [2022-11-02 20:31:21,847 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=219, PETRI_TRANSITIONS=215} [2022-11-02 20:31:21,850 INFO L287 CegarLoopForPetriNet]: 275 programPoint places, -56 predicate places. [2022-11-02 20:31:21,851 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 215 transitions, 445 flow [2022-11-02 20:31:21,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states 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 20:31:21,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:31:21,853 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] [2022-11-02 20:31:21,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:31:21,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-02 20:31:21,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:31:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2050405052, now seen corresponding path program 1 times [2022-11-02 20:31:21,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:31:21,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058931266] [2022-11-02 20:31:21,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:31:21,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:31:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:31:22,791 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 20:31:22,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:31:22,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058931266] [2022-11-02 20:31:22,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058931266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:31:22,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:31:22,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:31:22,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976939604] [2022-11-02 20:31:22,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:31:22,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:31:22,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:31:22,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:31:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:31:22,807 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 301 [2022-11-02 20:31:22,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 215 transitions, 445 flow. Second operand has 6 states, 6 states have (on average 188.83333333333334) internal successors, (1133), 6 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 20:31:22,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:31:22,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 301 [2022-11-02 20:31:22,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:31:25,594 INFO L130 PetriNetUnfolder]: 4702/7993 cut-off events. [2022-11-02 20:31:25,594 INFO L131 PetriNetUnfolder]: For 3/93 co-relation queries the response was YES. [2022-11-02 20:31:25,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14130 conditions, 7993 events. 4702/7993 cut-off events. For 3/93 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 52877 event pairs, 3435 based on Foata normal form. 0/6928 useless extension candidates. Maximal degree in co-relation 14094. Up to 6010 conditions per place. [2022-11-02 20:31:25,744 INFO L137 encePairwiseOnDemand]: 295/301 looper letters, 60 selfloop transitions, 5 changer transitions 0/214 dead transitions. [2022-11-02 20:31:25,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 214 transitions, 573 flow [2022-11-02 20:31:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:31:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:31:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-11-02 20:31:25,750 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6578073089700996 [2022-11-02 20:31:25,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-11-02 20:31:25,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-11-02 20:31:25,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:31:25,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-11-02 20:31:25,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 20:31:25,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:31:25,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:31:25,771 INFO L175 Difference]: Start difference. First operand has 219 places, 215 transitions, 445 flow. Second operand 6 states and 1188 transitions. [2022-11-02 20:31:25,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 214 transitions, 573 flow [2022-11-02 20:31:25,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 214 transitions, 569 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:31:25,778 INFO L231 Difference]: Finished difference. Result has 221 places, 214 transitions, 449 flow [2022-11-02 20:31:25,779 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=449, PETRI_PLACES=221, PETRI_TRANSITIONS=214} [2022-11-02 20:31:25,781 INFO L287 CegarLoopForPetriNet]: 275 programPoint places, -54 predicate places. [2022-11-02 20:31:25,781 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 214 transitions, 449 flow [2022-11-02 20:31:25,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.83333333333334) internal successors, (1133), 6 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 20:31:25,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:31:25,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:31:25,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:31:25,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-02 20:31:25,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:31:25,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2019101855, now seen corresponding path program 1 times [2022-11-02 20:31:25,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:31:25,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411718546] [2022-11-02 20:31:25,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:31:25,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:31:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:31:26,650 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 20:31:26,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:31:26,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411718546] [2022-11-02 20:31:26,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411718546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:31:26,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:31:26,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:31:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774077421] [2022-11-02 20:31:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:31:26,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:31:26,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:31:26,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:31:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:31:26,658 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 301 [2022-11-02 20:31:26,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 214 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 194.33333333333334) internal successors, (1166), 6 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 20:31:26,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:31:26,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 301 [2022-11-02 20:31:26,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:31:31,858 INFO L130 PetriNetUnfolder]: 7614/16352 cut-off events. [2022-11-02 20:31:31,858 INFO L131 PetriNetUnfolder]: For 40/68 co-relation queries the response was YES. [2022-11-02 20:31:31,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26225 conditions, 16352 events. 7614/16352 cut-off events. For 40/68 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 142629 event pairs, 2558 based on Foata normal form. 4/14749 useless extension candidates. Maximal degree in co-relation 26202. Up to 7074 conditions per place. [2022-11-02 20:31:32,102 INFO L137 encePairwiseOnDemand]: 293/301 looper letters, 114 selfloop transitions, 13 changer transitions 0/283 dead transitions. [2022-11-02 20:31:32,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 283 transitions, 846 flow [2022-11-02 20:31:32,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:31:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:31:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1280 transitions. [2022-11-02 20:31:32,108 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.70874861572536 [2022-11-02 20:31:32,109 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1280 transitions. [2022-11-02 20:31:32,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1280 transitions. [2022-11-02 20:31:32,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:31:32,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1280 transitions. [2022-11-02 20:31:32,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states 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 20:31:32,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:31:32,122 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:31:32,122 INFO L175 Difference]: Start difference. First operand has 221 places, 214 transitions, 449 flow. Second operand 6 states and 1280 transitions. [2022-11-02 20:31:32,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 283 transitions, 846 flow [2022-11-02 20:31:32,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 283 transitions, 836 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:31:32,131 INFO L231 Difference]: Finished difference. Result has 226 places, 226 transitions, 529 flow [2022-11-02 20:31:32,132 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=226, PETRI_TRANSITIONS=226} [2022-11-02 20:31:32,132 INFO L287 CegarLoopForPetriNet]: 275 programPoint places, -49 predicate places. [2022-11-02 20:31:32,133 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 226 transitions, 529 flow [2022-11-02 20:31:32,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.33333333333334) internal successors, (1166), 6 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 20:31:32,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:31:32,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:31:32,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:31:32,135 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-02 20:31:32,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:31:32,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1808515456, now seen corresponding path program 1 times [2022-11-02 20:31:32,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:31:32,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351423206] [2022-11-02 20:31:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:31:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:31:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:31:32,394 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 20:31:32,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:31:32,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351423206] [2022-11-02 20:31:32,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351423206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:31:32,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:31:32,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:31:32,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397373780] [2022-11-02 20:31:32,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:31:32,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:31:32,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:31:32,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:31:32,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:31:32,401 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 301 [2022-11-02 20:31:32,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 226 transitions, 529 flow. Second operand has 7 states, 7 states have (on average 204.71428571428572) internal successors, (1433), 7 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states 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 20:31:32,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:31:32,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 301 [2022-11-02 20:31:32,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand