./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.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_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/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_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/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_9d2c548f-1940-428d-b1f0-8ba258574f92/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 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:45:23,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:45:23,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:45:23,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:45:23,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:45:23,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:45:23,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:45:23,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:45:23,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:45:23,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:45:23,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:45:23,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:45:23,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:45:23,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:45:23,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:45:23,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:45:23,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:45:23,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:45:23,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:45:23,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:45:23,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:45:23,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:45:23,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:45:23,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:45:23,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:45:23,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:45:23,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:45:23,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:45:23,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:45:23,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:45:23,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:45:23,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:45:23,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:45:23,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:45:23,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:45:23,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:45:23,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:45:23,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:45:23,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:45:23,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:45:23,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:45:23,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:45:23,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:45:23,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:45:23,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:45:23,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:45:23,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:45:23,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:45:23,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:45:23,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:45:23,760 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:45:23,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:45:23,762 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:45:23,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:45:23,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:45:23,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:45:23,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:45:23,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:45:23,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:45:23,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:45:23,764 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:45:23,764 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:45:23,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:45:23,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:45:23,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:45:23,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:45:23,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:45:23,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:45:23,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:23,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:45:23,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:45:23,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:45:23,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:45:23,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:45:23,767 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:45:23,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:45:23,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:45:23,768 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_9d2c548f-1940-428d-b1f0-8ba258574f92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb [2022-11-02 20:45:24,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:45:24,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:45:24,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:45:24,123 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:45:24,124 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:45:24,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-02 20:45:24,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/data/eadc8b577/7c866bb112154a7c8bbfdace243c095c/FLAGf00614510 [2022-11-02 20:45:24,704 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:45:24,705 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-02 20:45:24,721 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/data/eadc8b577/7c866bb112154a7c8bbfdace243c095c/FLAGf00614510 [2022-11-02 20:45:25,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/data/eadc8b577/7c866bb112154a7c8bbfdace243c095c [2022-11-02 20:45:25,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:45:25,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:45:25,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:25,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:45:25,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:45:25,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6d9827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25, skipping insertion in model container [2022-11-02 20:45:25,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:45:25,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:45:25,440 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_9d2c548f-1940-428d-b1f0-8ba258574f92/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-02 20:45:25,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:25,458 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:45:25,557 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_9d2c548f-1940-428d-b1f0-8ba258574f92/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-02 20:45:25,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:25,578 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:45:25,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25 WrapperNode [2022-11-02 20:45:25,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:25,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:25,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:45:25,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:45:25,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,685 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1309 [2022-11-02 20:45:25,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:25,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:45:25,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:45:25,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:45:25,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,743 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:45:25,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:45:25,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:45:25,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:45:25,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:25,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:25,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:25,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2c548f-1940-428d-b1f0-8ba258574f92/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:45:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:45:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:45:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:45:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:45:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:45:25,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:45:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:45:25,857 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:45:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:45:25,857 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:45:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:45:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:45:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:45:25,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:45:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:45:25,872 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:45:26,144 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:45:26,147 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:45:27,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:45:27,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:45:27,801 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:45:27,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:27 BoogieIcfgContainer [2022-11-02 20:45:27,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:45:27,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:45:27,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:45:27,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:45:27,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:45:25" (1/3) ... [2022-11-02 20:45:27,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbeba3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:27, skipping insertion in model container [2022-11-02 20:45:27,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (2/3) ... [2022-11-02 20:45:27,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbeba3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:27, skipping insertion in model container [2022-11-02 20:45:27,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:27" (3/3) ... [2022-11-02 20:45:27,818 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2022-11-02 20:45:27,830 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:45:27,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:45:27,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2022-11-02 20:45:27,841 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:45:28,205 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:45:28,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-02 20:45:30,198 INFO L130 PetriNetUnfolder]: 111/1760 cut-off events. [2022-11-02 20:45:30,198 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:45:30,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1773 conditions, 1760 events. 111/1760 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7854 event pairs, 0 based on Foata normal form. 0/1419 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-11-02 20:45:30,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-02 20:45:30,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1636 places, 1734 transitions, 3486 flow [2022-11-02 20:45:30,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:45:30,448 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;@3c30c4a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:45:30,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2022-11-02 20:45:30,454 INFO L130 PetriNetUnfolder]: 0/41 cut-off events. [2022-11-02 20:45:30,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:45:30,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:30,456 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] [2022-11-02 20:45:30,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:30,462 INFO L85 PathProgramCache]: Analyzing trace with hash 677292700, now seen corresponding path program 1 times [2022-11-02 20:45:30,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:30,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448225613] [2022-11-02 20:45:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:30,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:30,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:30,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448225613] [2022-11-02 20:45:30,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448225613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:30,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:30,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:30,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598956443] [2022-11-02 20:45:30,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:30,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:30,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:30,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:30,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:30,762 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-02 20:45:30,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1636 places, 1734 transitions, 3486 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:30,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-02 20:45:30,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:34,117 INFO L130 PetriNetUnfolder]: 208/3994 cut-off events. [2022-11-02 20:45:34,118 INFO L131 PetriNetUnfolder]: For 56/58 co-relation queries the response was YES. [2022-11-02 20:45:34,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4143 conditions, 3994 events. 208/3994 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 27961 event pairs, 39 based on Foata normal form. 178/3377 useless extension candidates. Maximal degree in co-relation 3698. Up to 90 conditions per place. [2022-11-02 20:45:34,387 INFO L137 encePairwiseOnDemand]: 1724/1763 looper letters, 15 selfloop transitions, 2 changer transitions 6/1697 dead transitions. [2022-11-02 20:45:34,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1637 places, 1697 transitions, 3446 flow [2022-11-02 20:45:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5175 transitions. [2022-11-02 20:45:34,415 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9784458309699376 [2022-11-02 20:45:34,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5175 transitions. [2022-11-02 20:45:34,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5175 transitions. [2022-11-02 20:45:34,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:34,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5175 transitions. [2022-11-02 20:45:34,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1725.0) internal successors, (5175), 3 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:34,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:34,463 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:34,465 INFO L175 Difference]: Start difference. First operand has 1636 places, 1734 transitions, 3486 flow. Second operand 3 states and 5175 transitions. [2022-11-02 20:45:34,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1637 places, 1697 transitions, 3446 flow [2022-11-02 20:45:34,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1631 places, 1697 transitions, 3434 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:45:34,508 INFO L231 Difference]: Finished difference. Result has 1631 places, 1691 transitions, 3392 flow [2022-11-02 20:45:34,513 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3400, PETRI_DIFFERENCE_MINUEND_PLACES=1629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3392, PETRI_PLACES=1631, PETRI_TRANSITIONS=1691} [2022-11-02 20:45:34,516 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -5 predicate places. [2022-11-02 20:45:34,517 INFO L495 AbstractCegarLoop]: Abstraction has has 1631 places, 1691 transitions, 3392 flow [2022-11-02 20:45:34,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:34,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:34,521 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] [2022-11-02 20:45:34,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:45:34,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:34,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash 748304386, now seen corresponding path program 1 times [2022-11-02 20:45:34,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:34,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52281495] [2022-11-02 20:45:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:34,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:34,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:34,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52281495] [2022-11-02 20:45:34,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52281495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:34,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:34,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:34,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750194590] [2022-11-02 20:45:34,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:34,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:34,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:34,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:34,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:34,614 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-02 20:45:34,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1631 places, 1691 transitions, 3392 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:34,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:34,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-02 20:45:34,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:38,005 INFO L130 PetriNetUnfolder]: 208/4031 cut-off events. [2022-11-02 20:45:38,005 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-02 20:45:38,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4148 conditions, 4031 events. 208/4031 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 29586 event pairs, 39 based on Foata normal form. 0/3243 useless extension candidates. Maximal degree in co-relation 4099. Up to 90 conditions per place. [2022-11-02 20:45:38,389 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1690 dead transitions. [2022-11-02 20:45:38,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1626 places, 1690 transitions, 3424 flow [2022-11-02 20:45:38,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:38,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-02 20:45:38,401 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-02 20:45:38,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-02 20:45:38,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-02 20:45:38,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:38,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-02 20:45:38,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,436 INFO L175 Difference]: Start difference. First operand has 1631 places, 1691 transitions, 3392 flow. Second operand 3 states and 5139 transitions. [2022-11-02 20:45:38,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1626 places, 1690 transitions, 3424 flow [2022-11-02 20:45:38,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1624 places, 1690 transitions, 3420 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:38,467 INFO L231 Difference]: Finished difference. Result has 1624 places, 1690 transitions, 3390 flow [2022-11-02 20:45:38,470 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3386, PETRI_DIFFERENCE_MINUEND_PLACES=1622, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3390, PETRI_PLACES=1624, PETRI_TRANSITIONS=1690} [2022-11-02 20:45:38,470 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -12 predicate places. [2022-11-02 20:45:38,471 INFO L495 AbstractCegarLoop]: Abstraction has has 1624 places, 1690 transitions, 3390 flow [2022-11-02 20:45:38,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:38,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:38,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:45:38,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:38,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1845000463, now seen corresponding path program 1 times [2022-11-02 20:45:38,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:38,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861022846] [2022-11-02 20:45:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:38,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:38,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:38,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861022846] [2022-11-02 20:45:38,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861022846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:38,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:38,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:38,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567177306] [2022-11-02 20:45:38,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:38,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:38,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:38,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:38,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:38,588 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-02 20:45:38,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1624 places, 1690 transitions, 3390 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:38,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-02 20:45:38,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:41,047 INFO L130 PetriNetUnfolder]: 144/2904 cut-off events. [2022-11-02 20:45:41,048 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-02 20:45:41,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2982 conditions, 2904 events. 144/2904 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 18067 event pairs, 21 based on Foata normal form. 0/2341 useless extension candidates. Maximal degree in co-relation 2926. Up to 63 conditions per place. [2022-11-02 20:45:41,212 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1689 dead transitions. [2022-11-02 20:45:41,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1625 places, 1689 transitions, 3422 flow [2022-11-02 20:45:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:41,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-02 20:45:41,223 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-02 20:45:41,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-02 20:45:41,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-02 20:45:41,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:41,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-02 20:45:41,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,259 INFO L175 Difference]: Start difference. First operand has 1624 places, 1690 transitions, 3390 flow. Second operand 3 states and 5139 transitions. [2022-11-02 20:45:41,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1625 places, 1689 transitions, 3422 flow [2022-11-02 20:45:41,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1623 places, 1689 transitions, 3418 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:41,288 INFO L231 Difference]: Finished difference. Result has 1623 places, 1689 transitions, 3388 flow [2022-11-02 20:45:41,291 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3384, PETRI_DIFFERENCE_MINUEND_PLACES=1621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3388, PETRI_PLACES=1623, PETRI_TRANSITIONS=1689} [2022-11-02 20:45:41,293 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -13 predicate places. [2022-11-02 20:45:41,293 INFO L495 AbstractCegarLoop]: Abstraction has has 1623 places, 1689 transitions, 3388 flow [2022-11-02 20:45:41,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:41,296 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] [2022-11-02 20:45:41,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:45:41,296 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:41,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1565213468, now seen corresponding path program 1 times [2022-11-02 20:45:41,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:41,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245565637] [2022-11-02 20:45:41,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:41,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:41,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:41,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245565637] [2022-11-02 20:45:41,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245565637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:41,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:41,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:41,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143882544] [2022-11-02 20:45:41,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:41,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:41,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:41,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:41,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:41,381 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-02 20:45:41,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1623 places, 1689 transitions, 3388 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:41,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-02 20:45:41,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:43,711 INFO L130 PetriNetUnfolder]: 144/2931 cut-off events. [2022-11-02 20:45:43,712 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-02 20:45:43,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3009 conditions, 2931 events. 144/2931 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 18832 event pairs, 21 based on Foata normal form. 0/2369 useless extension candidates. Maximal degree in co-relation 2946. Up to 63 conditions per place. [2022-11-02 20:45:43,907 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1688 dead transitions. [2022-11-02 20:45:43,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1624 places, 1688 transitions, 3420 flow [2022-11-02 20:45:43,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-02 20:45:43,918 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-02 20:45:43,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-02 20:45:43,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-02 20:45:43,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:43,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-02 20:45:43,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,945 INFO L175 Difference]: Start difference. First operand has 1623 places, 1689 transitions, 3388 flow. Second operand 3 states and 5139 transitions. [2022-11-02 20:45:43,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1624 places, 1688 transitions, 3420 flow [2022-11-02 20:45:43,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1622 places, 1688 transitions, 3416 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:43,975 INFO L231 Difference]: Finished difference. Result has 1622 places, 1688 transitions, 3386 flow [2022-11-02 20:45:43,978 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=1620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3386, PETRI_PLACES=1622, PETRI_TRANSITIONS=1688} [2022-11-02 20:45:43,979 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -14 predicate places. [2022-11-02 20:45:43,979 INFO L495 AbstractCegarLoop]: Abstraction has has 1622 places, 1688 transitions, 3386 flow [2022-11-02 20:45:43,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:43,981 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] [2022-11-02 20:45:43,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:45:43,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:43,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:43,982 INFO L85 PathProgramCache]: Analyzing trace with hash -201898377, now seen corresponding path program 1 times [2022-11-02 20:45:43,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:43,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745179848] [2022-11-02 20:45:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:43,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:44,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:44,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745179848] [2022-11-02 20:45:44,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745179848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:44,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:44,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:44,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495762594] [2022-11-02 20:45:44,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:44,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:44,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:44,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:44,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:44,042 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-02 20:45:44,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1622 places, 1688 transitions, 3386 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:44,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:44,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-02 20:45:44,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:45,703 INFO L130 PetriNetUnfolder]: 139/2626 cut-off events. [2022-11-02 20:45:45,703 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-02 20:45:45,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 2626 events. 139/2626 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 16071 event pairs, 39 based on Foata normal form. 0/2143 useless extension candidates. Maximal degree in co-relation 2658. Up to 90 conditions per place. [2022-11-02 20:45:45,884 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1687 dead transitions. [2022-11-02 20:45:45,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1623 places, 1687 transitions, 3418 flow [2022-11-02 20:45:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-02 20:45:45,894 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-02 20:45:45,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-02 20:45:45,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-02 20:45:45,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:45,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-02 20:45:45,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,922 INFO L175 Difference]: Start difference. First operand has 1622 places, 1688 transitions, 3386 flow. Second operand 3 states and 5139 transitions. [2022-11-02 20:45:45,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1623 places, 1687 transitions, 3418 flow [2022-11-02 20:45:45,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1621 places, 1687 transitions, 3414 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:45,952 INFO L231 Difference]: Finished difference. Result has 1621 places, 1687 transitions, 3384 flow [2022-11-02 20:45:45,955 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3380, PETRI_DIFFERENCE_MINUEND_PLACES=1619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3384, PETRI_PLACES=1621, PETRI_TRANSITIONS=1687} [2022-11-02 20:45:45,955 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -15 predicate places. [2022-11-02 20:45:45,956 INFO L495 AbstractCegarLoop]: Abstraction has has 1621 places, 1687 transitions, 3384 flow [2022-11-02 20:45:45,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:45,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:45,958 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] [2022-11-02 20:45:45,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:45:45,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:45,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:45,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1598083093, now seen corresponding path program 1 times [2022-11-02 20:45:45,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:45,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610669991] [2022-11-02 20:45:45,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:45,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:46,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:46,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:46,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610669991] [2022-11-02 20:45:46,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610669991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:46,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:46,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:46,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849402757] [2022-11-02 20:45:46,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:46,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:46,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:46,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:46,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:46,076 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-02 20:45:46,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1621 places, 1687 transitions, 3384 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:46,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:46,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-02 20:45:46,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:48,186 INFO L130 PetriNetUnfolder]: 139/2669 cut-off events. [2022-11-02 20:45:48,186 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-02 20:45:48,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 2669 events. 139/2669 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16932 event pairs, 39 based on Foata normal form. 0/2191 useless extension candidates. Maximal degree in co-relation 2694. Up to 90 conditions per place. [2022-11-02 20:45:48,381 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-11-02 20:45:48,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1622 places, 1686 transitions, 3416 flow [2022-11-02 20:45:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:48,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-02 20:45:48,391 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-02 20:45:48,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-02 20:45:48,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-02 20:45:48,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:48,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-02 20:45:48,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,419 INFO L175 Difference]: Start difference. First operand has 1621 places, 1687 transitions, 3384 flow. Second operand 3 states and 5139 transitions. [2022-11-02 20:45:48,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1622 places, 1686 transitions, 3416 flow [2022-11-02 20:45:48,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1620 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:48,449 INFO L231 Difference]: Finished difference. Result has 1620 places, 1686 transitions, 3382 flow [2022-11-02 20:45:48,452 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3378, PETRI_DIFFERENCE_MINUEND_PLACES=1618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3382, PETRI_PLACES=1620, PETRI_TRANSITIONS=1686} [2022-11-02 20:45:48,453 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -16 predicate places. [2022-11-02 20:45:48,453 INFO L495 AbstractCegarLoop]: Abstraction has has 1620 places, 1686 transitions, 3382 flow [2022-11-02 20:45:48,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:48,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:48,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:45:48,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash 288291829, now seen corresponding path program 1 times [2022-11-02 20:45:48,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:48,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140186363] [2022-11-02 20:45:48,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:48,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:48,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:48,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140186363] [2022-11-02 20:45:48,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140186363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:48,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:48,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:48,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804023484] [2022-11-02 20:45:48,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:48,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:48,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:48,512 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1763 [2022-11-02 20:45:48,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1620 places, 1686 transitions, 3382 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:48,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:48,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1763 [2022-11-02 20:45:48,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:52,624 INFO L130 PetriNetUnfolder]: 348/5997 cut-off events. [2022-11-02 20:45:52,624 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:45:52,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6214 conditions, 5997 events. 348/5997 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 49383 event pairs, 54 based on Foata normal form. 0/4735 useless extension candidates. Maximal degree in co-relation 6130. Up to 154 conditions per place. [2022-11-02 20:45:52,907 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 39 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-11-02 20:45:52,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1685 transitions, 3462 flow [2022-11-02 20:45:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:52,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5091 transitions. [2022-11-02 20:45:52,917 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9625638116846285 [2022-11-02 20:45:52,917 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5091 transitions. [2022-11-02 20:45:52,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5091 transitions. [2022-11-02 20:45:52,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:52,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5091 transitions. [2022-11-02 20:45:52,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1697.0) internal successors, (5091), 3 states have internal predecessors, (5091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:52,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:52,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:52,939 INFO L175 Difference]: Start difference. First operand has 1620 places, 1686 transitions, 3382 flow. Second operand 3 states and 5091 transitions. [2022-11-02 20:45:52,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1685 transitions, 3462 flow [2022-11-02 20:45:52,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1685 transitions, 3458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:52,971 INFO L231 Difference]: Finished difference. Result has 1619 places, 1685 transitions, 3380 flow [2022-11-02 20:45:52,974 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=1617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3380, PETRI_PLACES=1619, PETRI_TRANSITIONS=1685} [2022-11-02 20:45:52,974 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -17 predicate places. [2022-11-02 20:45:52,975 INFO L495 AbstractCegarLoop]: Abstraction has has 1619 places, 1685 transitions, 3380 flow [2022-11-02 20:45:52,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:52,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:52,976 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] [2022-11-02 20:45:52,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:45:52,977 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1948888943, now seen corresponding path program 1 times [2022-11-02 20:45:52,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:52,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451300305] [2022-11-02 20:45:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:53,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:53,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451300305] [2022-11-02 20:45:53,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451300305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:53,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:53,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:53,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699559747] [2022-11-02 20:45:53,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:53,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:53,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:53,028 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-02 20:45:53,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1619 places, 1685 transitions, 3380 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:53,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:53,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-02 20:45:53,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:55,236 INFO L130 PetriNetUnfolder]: 241/3335 cut-off events. [2022-11-02 20:45:55,236 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-02 20:45:55,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3670 conditions, 3335 events. 241/3335 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 23183 event pairs, 90 based on Foata normal form. 0/2669 useless extension candidates. Maximal degree in co-relation 3579. Up to 236 conditions per place. [2022-11-02 20:45:55,420 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-11-02 20:45:55,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1684 transitions, 3490 flow [2022-11-02 20:45:55,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:55,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-02 20:45:55,428 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-02 20:45:55,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-02 20:45:55,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-02 20:45:55,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:55,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-02 20:45:55,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:55,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:55,449 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:55,449 INFO L175 Difference]: Start difference. First operand has 1619 places, 1685 transitions, 3380 flow. Second operand 3 states and 5061 transitions. [2022-11-02 20:45:55,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1684 transitions, 3490 flow [2022-11-02 20:45:55,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1684 transitions, 3486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:55,478 INFO L231 Difference]: Finished difference. Result has 1618 places, 1684 transitions, 3378 flow [2022-11-02 20:45:55,481 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=1616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3378, PETRI_PLACES=1618, PETRI_TRANSITIONS=1684} [2022-11-02 20:45:55,482 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -18 predicate places. [2022-11-02 20:45:55,482 INFO L495 AbstractCegarLoop]: Abstraction has has 1618 places, 1684 transitions, 3378 flow [2022-11-02 20:45:55,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:55,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:55,483 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] [2022-11-02 20:45:55,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:45:55,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:55,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:55,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1986567560, now seen corresponding path program 1 times [2022-11-02 20:45:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:55,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965351770] [2022-11-02 20:45:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:55,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:55,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:55,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:55,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965351770] [2022-11-02 20:45:55,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965351770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:55,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:55,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:55,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289999218] [2022-11-02 20:45:55,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:55,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:55,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:55,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:55,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:55,564 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-02 20:45:55,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1618 places, 1684 transitions, 3378 flow. Second operand has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:55,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:55,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-02 20:45:55,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:59,203 INFO L130 PetriNetUnfolder]: 256/4239 cut-off events. [2022-11-02 20:45:59,203 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-02 20:45:59,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4432 conditions, 4239 events. 256/4239 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 31276 event pairs, 54 based on Foata normal form. 0/3362 useless extension candidates. Maximal degree in co-relation 4334. Up to 157 conditions per place. [2022-11-02 20:45:59,505 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 42 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-11-02 20:45:59,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1683 transitions, 3464 flow [2022-11-02 20:45:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-02 20:45:59,512 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9614293817356778 [2022-11-02 20:45:59,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-02 20:45:59,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-02 20:45:59,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:59,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-02 20:45:59,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:59,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:59,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:59,533 INFO L175 Difference]: Start difference. First operand has 1618 places, 1684 transitions, 3378 flow. Second operand 3 states and 5085 transitions. [2022-11-02 20:45:59,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1683 transitions, 3464 flow [2022-11-02 20:45:59,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1683 transitions, 3460 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:59,563 INFO L231 Difference]: Finished difference. Result has 1617 places, 1683 transitions, 3376 flow [2022-11-02 20:45:59,566 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=1615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3376, PETRI_PLACES=1617, PETRI_TRANSITIONS=1683} [2022-11-02 20:45:59,566 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -19 predicate places. [2022-11-02 20:45:59,567 INFO L495 AbstractCegarLoop]: Abstraction has has 1617 places, 1683 transitions, 3376 flow [2022-11-02 20:45:59,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:59,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:59,568 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] [2022-11-02 20:45:59,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:45:59,568 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:45:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:59,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1939107505, now seen corresponding path program 1 times [2022-11-02 20:45:59,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:59,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219864004] [2022-11-02 20:45:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:59,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:59,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:59,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219864004] [2022-11-02 20:45:59,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219864004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:59,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:59,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:59,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40381807] [2022-11-02 20:45:59,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:59,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:59,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:59,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:59,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:59,615 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-02 20:45:59,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1617 places, 1683 transitions, 3376 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:59,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:59,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-02 20:45:59,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:02,009 INFO L130 PetriNetUnfolder]: 218/2894 cut-off events. [2022-11-02 20:46:02,010 INFO L131 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-11-02 20:46:02,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3184 conditions, 2894 events. 218/2894 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 20610 event pairs, 90 based on Foata normal form. 0/2327 useless extension candidates. Maximal degree in co-relation 3079. Up to 236 conditions per place. [2022-11-02 20:46:02,233 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-11-02 20:46:02,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1682 transitions, 3486 flow [2022-11-02 20:46:02,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-02 20:46:02,244 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-02 20:46:02,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-02 20:46:02,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-02 20:46:02,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:02,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-02 20:46:02,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,267 INFO L175 Difference]: Start difference. First operand has 1617 places, 1683 transitions, 3376 flow. Second operand 3 states and 5061 transitions. [2022-11-02 20:46:02,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1682 transitions, 3486 flow [2022-11-02 20:46:02,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1682 transitions, 3482 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:02,305 INFO L231 Difference]: Finished difference. Result has 1616 places, 1682 transitions, 3374 flow [2022-11-02 20:46:02,307 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3370, PETRI_DIFFERENCE_MINUEND_PLACES=1614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3374, PETRI_PLACES=1616, PETRI_TRANSITIONS=1682} [2022-11-02 20:46:02,308 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -20 predicate places. [2022-11-02 20:46:02,308 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 1682 transitions, 3374 flow [2022-11-02 20:46:02,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:02,310 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] [2022-11-02 20:46:02,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:46:02,311 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:46:02,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:02,311 INFO L85 PathProgramCache]: Analyzing trace with hash 401581992, now seen corresponding path program 1 times [2022-11-02 20:46:02,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:02,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801473957] [2022-11-02 20:46:02,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:02,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:02,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:02,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801473957] [2022-11-02 20:46:02,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801473957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:02,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:02,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:02,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066731422] [2022-11-02 20:46:02,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:02,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:02,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:02,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:02,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:02,372 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-02 20:46:02,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 1682 transitions, 3374 flow. Second operand has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:02,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-02 20:46:02,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:04,360 INFO L130 PetriNetUnfolder]: 164/2465 cut-off events. [2022-11-02 20:46:04,360 INFO L131 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-11-02 20:46:04,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 2465 events. 164/2465 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 14436 event pairs, 54 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 2518. Up to 156 conditions per place. [2022-11-02 20:46:04,556 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 41 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-11-02 20:46:04,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1681 transitions, 3458 flow [2022-11-02 20:46:04,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:04,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5084 transitions. [2022-11-02 20:46:04,563 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9612403100775194 [2022-11-02 20:46:04,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5084 transitions. [2022-11-02 20:46:04,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5084 transitions. [2022-11-02 20:46:04,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:04,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5084 transitions. [2022-11-02 20:46:04,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1694.6666666666667) internal successors, (5084), 3 states have internal predecessors, (5084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,579 INFO L175 Difference]: Start difference. First operand has 1616 places, 1682 transitions, 3374 flow. Second operand 3 states and 5084 transitions. [2022-11-02 20:46:04,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1681 transitions, 3458 flow [2022-11-02 20:46:04,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1681 transitions, 3454 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:04,607 INFO L231 Difference]: Finished difference. Result has 1615 places, 1681 transitions, 3372 flow [2022-11-02 20:46:04,610 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=1613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3372, PETRI_PLACES=1615, PETRI_TRANSITIONS=1681} [2022-11-02 20:46:04,610 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -21 predicate places. [2022-11-02 20:46:04,610 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 1681 transitions, 3372 flow [2022-11-02 20:46:04,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:04,612 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:04,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:46:04,612 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:46:04,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:04,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1921747409, now seen corresponding path program 1 times [2022-11-02 20:46:04,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:04,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468774829] [2022-11-02 20:46:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:04,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:04,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:04,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468774829] [2022-11-02 20:46:04,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468774829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:04,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:04,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:04,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87903376] [2022-11-02 20:46:04,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:04,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:04,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:04,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:04,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:04,662 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-02 20:46:04,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 1681 transitions, 3372 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:04,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-02 20:46:04,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:06,328 INFO L130 PetriNetUnfolder]: 195/2433 cut-off events. [2022-11-02 20:46:06,328 INFO L131 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-11-02 20:46:06,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2678 conditions, 2433 events. 195/2433 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 16955 event pairs, 90 based on Foata normal form. 0/1967 useless extension candidates. Maximal degree in co-relation 2559. Up to 236 conditions per place. [2022-11-02 20:46:06,534 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-11-02 20:46:06,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1680 transitions, 3482 flow [2022-11-02 20:46:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-02 20:46:06,542 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-02 20:46:06,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-02 20:46:06,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-02 20:46:06,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:06,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-02 20:46:06,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,557 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,557 INFO L175 Difference]: Start difference. First operand has 1615 places, 1681 transitions, 3372 flow. Second operand 3 states and 5061 transitions. [2022-11-02 20:46:06,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1680 transitions, 3482 flow [2022-11-02 20:46:06,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:06,585 INFO L231 Difference]: Finished difference. Result has 1614 places, 1680 transitions, 3370 flow [2022-11-02 20:46:06,587 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3366, PETRI_DIFFERENCE_MINUEND_PLACES=1612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3370, PETRI_PLACES=1614, PETRI_TRANSITIONS=1680} [2022-11-02 20:46:06,588 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -22 predicate places. [2022-11-02 20:46:06,588 INFO L495 AbstractCegarLoop]: Abstraction has has 1614 places, 1680 transitions, 3370 flow [2022-11-02 20:46:06,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:06,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:06,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:46:06,590 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:46:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:06,591 INFO L85 PathProgramCache]: Analyzing trace with hash -782127175, now seen corresponding path program 1 times [2022-11-02 20:46:06,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:06,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782553356] [2022-11-02 20:46:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:06,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:06,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:06,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782553356] [2022-11-02 20:46:06,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782553356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:06,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:06,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:06,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669264096] [2022-11-02 20:46:06,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:06,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:06,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:06,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:06,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:06,637 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-02 20:46:06,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 1680 transitions, 3370 flow. Second operand has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:06,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-02 20:46:06,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:13,079 INFO L130 PetriNetUnfolder]: 1081/12140 cut-off events. [2022-11-02 20:46:13,079 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-02 20:46:13,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13179 conditions, 12140 events. 1081/12140 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 132390 event pairs, 480 based on Foata normal form. 0/9565 useless extension candidates. Maximal degree in co-relation 13053. Up to 850 conditions per place. [2022-11-02 20:46:14,160 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 33 selfloop transitions, 2 changer transitions 0/1679 dead transitions. [2022-11-02 20:46:14,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 1679 transitions, 3438 flow [2022-11-02 20:46:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5103 transitions. [2022-11-02 20:46:14,167 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9648326715825298 [2022-11-02 20:46:14,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5103 transitions. [2022-11-02 20:46:14,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5103 transitions. [2022-11-02 20:46:14,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:14,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5103 transitions. [2022-11-02 20:46:14,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1701.0) internal successors, (5103), 3 states have internal predecessors, (5103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:14,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:14,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:14,180 INFO L175 Difference]: Start difference. First operand has 1614 places, 1680 transitions, 3370 flow. Second operand 3 states and 5103 transitions. [2022-11-02 20:46:14,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1615 places, 1679 transitions, 3438 flow [2022-11-02 20:46:14,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1613 places, 1679 transitions, 3434 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:14,205 INFO L231 Difference]: Finished difference. Result has 1613 places, 1679 transitions, 3368 flow [2022-11-02 20:46:14,207 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3364, PETRI_DIFFERENCE_MINUEND_PLACES=1611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3368, PETRI_PLACES=1613, PETRI_TRANSITIONS=1679} [2022-11-02 20:46:14,208 INFO L287 CegarLoopForPetriNet]: 1636 programPoint places, -23 predicate places. [2022-11-02 20:46:14,208 INFO L495 AbstractCegarLoop]: Abstraction has has 1613 places, 1679 transitions, 3368 flow [2022-11-02 20:46:14,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:14,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:14,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:14,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:46:14,210 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-02 20:46:14,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:14,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1621979617, now seen corresponding path program 1 times [2022-11-02 20:46:14,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:14,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653676213] [2022-11-02 20:46:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:14,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:14,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:14,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653676213] [2022-11-02 20:46:14,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653676213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:14,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:14,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:14,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961829487] [2022-11-02 20:46:14,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:14,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:14,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:14,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:14,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:14,265 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-02 20:46:14,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1613 places, 1679 transitions, 3368 flow. Second operand has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:14,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:14,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-02 20:46:14,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand