./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 b5237d83 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_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/qrcu-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 02:37:54,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:37:54,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:37:54,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:37:54,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:37:54,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:37:54,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:37:54,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:37:54,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:37:54,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:37:54,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:37:54,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:37:54,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:37:54,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:37:54,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:37:54,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:37:54,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:37:54,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:37:54,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:37:54,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:37:54,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:37:54,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:37:54,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:37:54,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:37:54,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:37:54,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:37:54,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:37:54,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:37:54,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:37:54,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:37:54,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:37:54,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:37:54,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:37:54,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:37:54,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:37:54,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:37:54,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:37:54,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:37:54,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:37:54,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:37:54,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:37:54,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 02:37:54,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:37:54,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:37:54,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:37:54,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:37:54,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:37:54,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:37:54,247 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:37:54,248 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:37:54,248 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:37:54,248 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:37:54,249 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:37:54,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:37:54,250 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:37:54,250 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:37:54,250 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:37:54,250 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:37:54,251 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:37:54,251 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:37:54,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:37:54,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:37:54,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:37:54,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:37:54,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:37:54,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:37:54,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:37:54,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:37:54,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:37:54,254 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 02:37:54,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:37:54,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:37:54,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:37:54,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:37:54,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:37:54,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:37:54,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:37:54,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:37:54,256 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:37:54,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:37:54,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:37:54,257 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:37:54,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:37:54,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:37:54,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:37:54,258 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_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3655f01df3eccc3acdb69c97e41dec3a3ff24ca3333b88921cb12b5b6c342936 [2022-11-22 02:37:54,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:37:54,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:37:54,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:37:54,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:37:54,633 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:37:54,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-atomic/qrcu-1.i [2022-11-22 02:37:57,711 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:37:58,078 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:37:58,079 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/sv-benchmarks/c/pthread-atomic/qrcu-1.i [2022-11-22 02:37:58,092 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/data/7bc0d4080/a95d48a0fab84a0fa44c5dc4638a6300/FLAGc965aacbe [2022-11-22 02:37:58,118 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/data/7bc0d4080/a95d48a0fab84a0fa44c5dc4638a6300 [2022-11-22 02:37:58,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:37:58,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:37:58,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:37:58,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:37:58,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:37:58,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:58,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff5be3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58, skipping insertion in model container [2022-11-22 02:37:58,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:58,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:37:58,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:37:58,670 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_92881baf-b424-474f-ac0a-f48944ad8c7f/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30694,30707] [2022-11-22 02:37:58,672 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_92881baf-b424-474f-ac0a-f48944ad8c7f/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30916,30929] [2022-11-22 02:37:58,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:37:58,706 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:37:58,745 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_92881baf-b424-474f-ac0a-f48944ad8c7f/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30694,30707] [2022-11-22 02:37:58,747 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_92881baf-b424-474f-ac0a-f48944ad8c7f/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30916,30929] [2022-11-22 02:37:58,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:37:58,801 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:37:58,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58 WrapperNode [2022-11-22 02:37:58,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:37:58,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:37:58,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:37:58,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:37:58,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:58,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:58,910 INFO L138 Inliner]: procedures = 177, calls = 54, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 473 [2022-11-22 02:37:58,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:37:58,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:37:58,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:37:58,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:37:58,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:58,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:58,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:58,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:59,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:59,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:59,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:59,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:59,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:37:59,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:37:59,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:37:59,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:37:59,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (1/1) ... [2022-11-22 02:37:59,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:37:59,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:37:59,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:37:59,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92881baf-b424-474f-ac0a-f48944ad8c7f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:37:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2022-11-22 02:37:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2022-11-22 02:37:59,113 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2022-11-22 02:37:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2022-11-22 02:37:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:37:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:37:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2022-11-22 02:37:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2022-11-22 02:37:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:37:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:37:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:37:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:37:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:37:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:37:59,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:37:59,117 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:37:59,381 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:37:59,383 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:38:00,366 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:38:00,825 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:38:00,825 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 02:38:00,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:00 BoogieIcfgContainer [2022-11-22 02:38:00,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:38:00,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:38:00,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:38:00,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:38:00,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:37:58" (1/3) ... [2022-11-22 02:38:00,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ccf3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:00, skipping insertion in model container [2022-11-22 02:38:00,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:58" (2/3) ... [2022-11-22 02:38:00,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ccf3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:00, skipping insertion in model container [2022-11-22 02:38:00,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:00" (3/3) ... [2022-11-22 02:38:00,839 INFO L112 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2022-11-22 02:38:00,850 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:38:00,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:38:00,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2022-11-22 02:38:00,863 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:38:01,006 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-22 02:38:01,048 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:38:01,067 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 333 places, 341 transitions, 706 flow [2022-11-22 02:38:01,078 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 333 places, 341 transitions, 706 flow [2022-11-22 02:38:01,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 341 transitions, 706 flow [2022-11-22 02:38:01,321 INFO L130 PetriNetUnfolder]: 18/338 cut-off events. [2022-11-22 02:38:01,321 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-22 02:38:01,339 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. [2022-11-22 02:38:01,361 INFO L119 LiptonReduction]: Number of co-enabled transitions 47166 [2022-11-22 02:38:38,099 INFO L134 LiptonReduction]: Checked pairs total: 258560 [2022-11-22 02:38:38,100 INFO L136 LiptonReduction]: Total number of compositions: 280 [2022-11-22 02:38:38,109 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 185 places, 191 transitions, 406 flow [2022-11-22 02:38:57,196 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) [2022-11-22 02:38:57,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:38:57,286 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;@3a6477c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:38:57,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 118 error locations. [2022-11-22 02:38:59,642 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) [2022-11-22 02:38:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:38:59,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:59,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:38:59,650 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)] === [2022-11-22 02:38:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 59686762, now seen corresponding path program 1 times [2022-11-22 02:38:59,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:59,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111324101] [2022-11-22 02:38:59,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:59,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:59,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:59,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111324101] [2022-11-22 02:38:59,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111324101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:59,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:59,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:38:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374620726] [2022-11-22 02:38:59,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:59,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:38:59,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:59,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:38:59,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:39:00,915 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) [2022-11-22 02:39:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:05,577 INFO L93 Difference]: Finished difference Result 204461 states and 821093 transitions. [2022-11-22 02:39:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:39:05,579 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 [2022-11-22 02:39:05,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:07,562 INFO L225 Difference]: With dead ends: 204461 [2022-11-22 02:39:07,563 INFO L226 Difference]: Without dead ends: 204460 [2022-11-22 02:39:07,564 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 [2022-11-22 02:39:07,568 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 [2022-11-22 02:39:07,569 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] [2022-11-22 02:39:09,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204460 states. [2022-11-22 02:39:17,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204460 to 204460. [2022-11-22 02:39:17,958 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) [2022-11-22 02:39:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204460 states to 204460 states and 821091 transitions. [2022-11-22 02:39:20,753 INFO L78 Accepts]: Start accepts. Automaton has 204460 states and 821091 transitions. Word has length 4 [2022-11-22 02:39:20,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:20,754 INFO L495 AbstractCegarLoop]: Abstraction has 204460 states and 821091 transitions. [2022-11-22 02:39:20,754 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) [2022-11-22 02:39:20,754 INFO L276 IsEmpty]: Start isEmpty. Operand 204460 states and 821091 transitions. [2022-11-22 02:39:20,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:39:20,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:20,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:39:20,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:39:20,756 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)] === [2022-11-22 02:39:20,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:20,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1850285983, now seen corresponding path program 1 times [2022-11-22 02:39:20,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:20,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531213933] [2022-11-22 02:39:20,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:20,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:20,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:20,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531213933] [2022-11-22 02:39:20,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531213933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:20,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:20,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:39:20,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646025366] [2022-11-22 02:39:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:20,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:39:20,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:20,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:39:20,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:39:20,903 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) [2022-11-22 02:39:25,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:25,289 INFO L93 Difference]: Finished difference Result 234608 states and 928689 transitions. [2022-11-22 02:39:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:39:25,289 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 [2022-11-22 02:39:25,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:26,804 INFO L225 Difference]: With dead ends: 234608 [2022-11-22 02:39:26,804 INFO L226 Difference]: Without dead ends: 234608 [2022-11-22 02:39:26,804 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 [2022-11-22 02:39:26,806 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:26,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 184 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:39:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234608 states.