./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/qrcu-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/qrcu-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3655f01df3eccc3acdb69c97e41dec3a3ff24ca3333b88921cb12b5b6c342936 --- 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-38b53e6 [2022-11-25 23:23:12,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:23:12,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:23:12,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:23:12,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:23:12,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:23:12,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:23:12,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:23:12,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:23:12,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:23:12,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:23:12,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:23:12,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:23:12,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:23:12,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:23:12,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:23:12,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:23:12,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:23:12,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:23:12,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:23:12,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:23:12,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:23:12,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:23:12,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:23:12,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:23:12,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:23:12,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:23:12,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:23:12,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:23:12,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:23:12,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:23:12,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:23:12,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:23:12,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:23:12,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:23:12,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:23:12,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:23:12,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:23:12,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:23:12,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:23:12,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:23:12,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 23:23:13,017 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:23:13,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:23:13,018 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:23:13,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:23:13,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:23:13,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:23:13,023 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:23:13,023 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:23:13,023 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:23:13,023 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:23:13,024 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:23:13,025 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:23:13,025 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:23:13,025 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:23:13,025 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:23:13,025 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:23:13,025 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:23:13,026 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:23:13,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:23:13,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:23:13,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:23:13,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:23:13,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:23:13,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:23:13,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:23:13,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:23:13,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:23:13,029 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 23:23:13,029 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:23:13,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:23:13,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:23:13,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:23:13,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:23:13,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:23:13,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:23:13,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:23:13,031 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:23:13,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:23:13,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:23:13,031 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:23:13,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:23:13,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:23:13,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:23:13,032 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_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3655f01df3eccc3acdb69c97e41dec3a3ff24ca3333b88921cb12b5b6c342936 [2022-11-25 23:23:13,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:23:13,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:23:13,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:23:13,356 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:23:13,356 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:23:13,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-atomic/qrcu-1.i [2022-11-25 23:23:16,369 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:23:16,703 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:23:16,704 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/sv-benchmarks/c/pthread-atomic/qrcu-1.i [2022-11-25 23:23:16,731 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/data/ddaefbcb8/4e80fb85024641959a301b6dc3df9a22/FLAG8ec6a90d4 [2022-11-25 23:23:16,751 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/data/ddaefbcb8/4e80fb85024641959a301b6dc3df9a22 [2022-11-25 23:23:16,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:23:16,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:23:16,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:23:16,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:23:16,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:23:16,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:23:16" (1/1) ... [2022-11-25 23:23:16,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f76b4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:16, skipping insertion in model container [2022-11-25 23:23:16,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:23:16" (1/1) ... [2022-11-25 23:23:16,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:23:16,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:23:17,259 WARN L237 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_6784241a-1585-40ad-8d28-40325e8fc289/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30694,30707] [2022-11-25 23:23:17,263 WARN L237 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_6784241a-1585-40ad-8d28-40325e8fc289/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30916,30929] [2022-11-25 23:23:17,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:23:17,315 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:23:17,373 WARN L237 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_6784241a-1585-40ad-8d28-40325e8fc289/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30694,30707] [2022-11-25 23:23:17,379 WARN L237 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_6784241a-1585-40ad-8d28-40325e8fc289/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30916,30929] [2022-11-25 23:23:17,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:23:17,456 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:23:17,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17 WrapperNode [2022-11-25 23:23:17,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:23:17,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:23:17,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:23:17,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:23:17,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,568 INFO L138 Inliner]: procedures = 177, calls = 54, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 473 [2022-11-25 23:23:17,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:23:17,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:23:17,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:23:17,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:23:17,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,651 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:23:17,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:23:17,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:23:17,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:23:17,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (1/1) ... [2022-11-25 23:23:17,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:23:17,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:23:17,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:23:17,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6784241a-1585-40ad-8d28-40325e8fc289/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:23:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2022-11-25 23:23:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2022-11-25 23:23:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2022-11-25 23:23:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2022-11-25 23:23:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:23:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:23:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2022-11-25 23:23:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2022-11-25 23:23:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 23:23:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:23:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:23:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:23:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:23:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:23:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:23:17,767 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:23:17,933 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:23:17,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:23:18,733 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:23:19,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:23:19,131 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 23:23:19,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:19 BoogieIcfgContainer [2022-11-25 23:23:19,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:23:19,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:23:19,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:23:19,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:23:19,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:23:16" (1/3) ... [2022-11-25 23:23:19,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ea1958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:19, skipping insertion in model container [2022-11-25 23:23:19,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:17" (2/3) ... [2022-11-25 23:23:19,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ea1958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:19, skipping insertion in model container [2022-11-25 23:23:19,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:19" (3/3) ... [2022-11-25 23:23:19,149 INFO L112 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2022-11-25 23:23:19,160 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:23:19,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:23:19,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2022-11-25 23:23:19,171 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:23:19,313 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 23:23:19,363 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:23:19,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 333 places, 341 transitions, 706 flow [2022-11-25 23:23:19,407 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 333 places, 341 transitions, 706 flow [2022-11-25 23:23:19,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 341 transitions, 706 flow [2022-11-25 23:23:19,642 INFO L130 PetriNetUnfolder]: 18/338 cut-off events. [2022-11-25 23:23:19,643 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 23:23:19,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 338 events. 18/338 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1056 event pairs, 0 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 284. Up to 4 conditions per place. [2022-11-25 23:23:19,685 INFO L119 LiptonReduction]: Number of co-enabled transitions 47166 [2022-11-25 23:23:54,744 INFO L134 LiptonReduction]: Checked pairs total: 258560 [2022-11-25 23:23:54,744 INFO L136 LiptonReduction]: Total number of compositions: 280 [2022-11-25 23:23:54,752 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 185 places, 191 transitions, 406 flow [2022-11-25 23:24:12,741 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 546553 states, 533936 states have (on average 4.180418626951544) internal successors, (2232076), 546552 states have internal predecessors, (2232076), 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) [2022-11-25 23:24:12,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:24:12,817 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=FINITE_AUTOMATA, 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;@548296b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:24:12,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 118 error locations. [2022-11-25 23:24:13,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 546553 states, 533936 states have (on average 4.180418626951544) internal successors, (2232076), 546552 states have internal predecessors, (2232076), 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) [2022-11-25 23:24:13,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:24:13,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:13,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:24:13,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-11-25 23:24:13,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:13,600 INFO L85 PathProgramCache]: Analyzing trace with hash 59686762, now seen corresponding path program 1 times [2022-11-25 23:24:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:13,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369004294] [2022-11-25 23:24:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:13,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:13,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:13,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369004294] [2022-11-25 23:24:13,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369004294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:13,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:13,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:24:13,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348291057] [2022-11-25 23:24:13,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:13,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:24:13,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:13,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:24:13,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:24:14,822 INFO L87 Difference]: Start difference. First operand has 546553 states, 533936 states have (on average 4.180418626951544) internal successors, (2232076), 546552 states have internal predecessors, (2232076), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:24:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:20,011 INFO L93 Difference]: Finished difference Result 204461 states and 821093 transitions. [2022-11-25 23:24:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:24:20,016 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-25 23:24:20,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:22,838 INFO L225 Difference]: With dead ends: 204461 [2022-11-25 23:24:22,838 INFO L226 Difference]: Without dead ends: 204460 [2022-11-25 23:24:22,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:24:22,848 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:22,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:24:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204460 states. [2022-11-25 23:24:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204460 to 204460. [2022-11-25 23:24:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204460 states, 203573 states have (on average 4.033398338679491) internal successors, (821091), 204459 states have internal predecessors, (821091), 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) [2022-11-25 23:24:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204460 states to 204460 states and 821091 transitions. [2022-11-25 23:24:34,497 INFO L78 Accepts]: Start accepts. Automaton has 204460 states and 821091 transitions. Word has length 4 [2022-11-25 23:24:34,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:34,499 INFO L495 AbstractCegarLoop]: Abstraction has 204460 states and 821091 transitions. [2022-11-25 23:24:34,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:24:34,499 INFO L276 IsEmpty]: Start isEmpty. Operand 204460 states and 821091 transitions. [2022-11-25 23:24:34,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:24:34,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:34,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:24:34,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:24:34,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-11-25 23:24:34,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1850285983, now seen corresponding path program 1 times [2022-11-25 23:24:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:34,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002274403] [2022-11-25 23:24:34,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:34,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:34,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:34,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002274403] [2022-11-25 23:24:34,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002274403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:34,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:34,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:24:34,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150892424] [2022-11-25 23:24:34,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:34,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:34,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:34,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:34,692 INFO L87 Difference]: Start difference. First operand 204460 states and 821091 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 23:24:38,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:38,054 INFO L93 Difference]: Finished difference Result 234608 states and 928689 transitions. [2022-11-25 23:24:38,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:38,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-11-25 23:24:38,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:40,592 INFO L225 Difference]: With dead ends: 234608 [2022-11-25 23:24:40,593 INFO L226 Difference]: Without dead ends: 234608 [2022-11-25 23:24:40,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:40,594 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 143 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:40,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 184 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:24:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234608 states.