./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:47:26,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:47:26,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:47:26,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:47:26,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:47:26,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:47:26,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:47:26,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:47:26,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:47:26,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:47:26,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:47:26,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:47:26,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:47:26,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:47:26,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:47:26,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:47:26,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:47:26,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:47:26,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:47:26,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:47:26,714 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:47:26,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:47:26,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:47:26,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:47:26,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:47:26,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:47:26,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:47:26,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:47:26,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:47:26,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:47:26,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:47:26,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:47:26,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:47:26,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:47:26,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:47:26,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:47:26,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:47:26,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:47:26,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:47:26,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:47:26,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:47:26,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:47:26,734 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:47:26,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:47:26,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:47:26,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:47:26,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:47:26,765 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:47:26,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:47:26,766 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:47:26,766 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:47:26,766 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:47:26,766 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:47:26,767 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:47:26,767 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:47:26,767 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:47:26,767 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:47:26,767 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:47:26,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:47:26,768 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:47:26,768 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:47:26,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:47:26,769 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:47:26,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:47:26,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:47:26,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:47:26,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:47:26,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:47:26,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:47:26,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:47:26,771 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:47:26,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:47:26,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:47:26,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:47:26,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:47:26,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:47:26,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:47:26,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:47:26,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:47:26,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:47:26,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:47:26,772 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:47:26,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:47:26,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:47:26,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:47:26,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:47:26,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2022-04-18 18:47:26,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:47:27,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:47:27,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:47:27,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:47:27,017 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:47:27,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i [2022-04-18 18:47:27,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cd7d9bf7a/610e5aad6b73493087b9502b72472a76/FLAGe76309c76 [2022-04-18 18:47:27,422 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:47:27,423 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i [2022-04-18 18:47:27,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cd7d9bf7a/610e5aad6b73493087b9502b72472a76/FLAGe76309c76 [2022-04-18 18:47:27,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cd7d9bf7a/610e5aad6b73493087b9502b72472a76 [2022-04-18 18:47:27,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:47:27,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:47:27,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:47:27,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:47:27,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:47:27,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:47:27" (1/1) ... [2022-04-18 18:47:27,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1003b940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:27, skipping insertion in model container [2022-04-18 18:47:27,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:47:27" (1/1) ... [2022-04-18 18:47:27,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:47:27,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:47:28,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[30879,30892] [2022-04-18 18:47:28,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[31740,31753] [2022-04-18 18:47:28,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[32508,32521] [2022-04-18 18:47:28,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:47:28,192 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:47:28,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[30879,30892] [2022-04-18 18:47:28,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[31740,31753] [2022-04-18 18:47:28,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[32508,32521] [2022-04-18 18:47:28,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:47:28,285 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:47:28,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28 WrapperNode [2022-04-18 18:47:28,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:47:28,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:47:28,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:47:28,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:47:28,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,358 INFO L137 Inliner]: procedures = 185, calls = 58, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 524 [2022-04-18 18:47:28,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:47:28,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:47:28,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:47:28,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:47:28,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:47:28,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:47:28,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:47:28,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:47:28,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (1/1) ... [2022-04-18 18:47:28,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:47:28,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:47:28,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:47:28,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:47:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:47:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 18:47:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 18:47:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 18:47:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 18:47:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:47:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:47:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:47:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2022-04-18 18:47:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2022-04-18 18:47:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:47:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:47:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:47:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:47:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:47:28,472 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:47:28,644 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:47:28,645 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:47:28,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: assume { :end_inline_scull_trim } true; [2022-04-18 18:47:28,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: assume -2147483648 <= scull_cleanup_module_#t~ret42#1 && scull_cleanup_module_#t~ret42#1 <= 2147483647; [2022-04-18 18:47:28,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: havoc scull_cleanup_module_#t~ret42#1; [2022-04-18 18:47:28,721 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: assume { :end_inline_scull_cleanup_module } true; [2022-04-18 18:47:28,721 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret42#1 := scull_trim_#res#1; [2022-04-18 18:47:28,721 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2022-04-18 18:47:29,042 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:47:29,050 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:47:29,051 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 18:47:29,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:47:29 BoogieIcfgContainer [2022-04-18 18:47:29,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:47:29,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:47:29,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:47:29,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:47:29,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:47:27" (1/3) ... [2022-04-18 18:47:29,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb6e857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:47:29, skipping insertion in model container [2022-04-18 18:47:29,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:47:28" (2/3) ... [2022-04-18 18:47:29,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb6e857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:47:29, skipping insertion in model container [2022-04-18 18:47:29,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:47:29" (3/3) ... [2022-04-18 18:47:29,061 INFO L111 eAbstractionObserver]: Analyzing ICFG scull.i [2022-04-18 18:47:29,064 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:47:29,065 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:47:29,066 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2022-04-18 18:47:29,066 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:47:29,184 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 18:47:29,211 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:47:29,216 INFO L340 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 [2022-04-18 18:47:29,216 INFO L341 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-04-18 18:47:29,234 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:47:29,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 588 places, 594 transitions, 1212 flow [2022-04-18 18:47:29,248 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 588 places, 594 transitions, 1212 flow [2022-04-18 18:47:29,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 588 places, 594 transitions, 1212 flow [2022-04-18 18:47:29,437 INFO L129 PetriNetUnfolder]: 16/591 cut-off events. [2022-04-18 18:47:29,438 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 18:47:29,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 591 events. 16/591 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1807 event pairs, 0 based on Foata normal form. 0/530 useless extension candidates. Maximal degree in co-relation 534. Up to 4 conditions per place. [2022-04-18 18:47:29,517 INFO L116 LiptonReduction]: Number of co-enabled transitions 178250 [2022-04-18 18:47:40,024 INFO L131 LiptonReduction]: Checked pairs total: 1055086 [2022-04-18 18:47:40,024 INFO L133 LiptonReduction]: Total number of compositions: 625 [2022-04-18 18:47:40,035 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 184 places, 186 transitions, 396 flow [2022-04-18 18:47:47,364 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 331306 states, 325473 states have (on average 3.8042940581860862) internal successors, (1238195), 331305 states have internal predecessors, (1238195), 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) [2022-04-18 18:47:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 331306 states, 325473 states have (on average 3.8042940581860862) internal successors, (1238195), 331305 states have internal predecessors, (1238195), 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) [2022-04-18 18:47:47,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-04-18 18:47:47,884 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:47:47,885 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-04-18 18:47:47,886 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-04-18 18:47:47,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:47:47,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2313980, now seen corresponding path program 1 times [2022-04-18 18:47:47,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:47:47,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026109974] [2022-04-18 18:47:47,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:47:47,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:47:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:47:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:47:48,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:47:48,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026109974] [2022-04-18 18:47:48,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026109974] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:47:48,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:47:48,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 18:47:48,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386873527] [2022-04-18 18:47:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:47:48,019 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:47:48,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:47:48,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:47:48,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:47:49,258 INFO L87 Difference]: Start difference. First operand has 331306 states, 325473 states have (on average 3.8042940581860862) internal successors, (1238195), 331305 states have internal predecessors, (1238195), 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 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-04-18 18:47:51,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:47:51,794 INFO L93 Difference]: Finished difference Result 185892 states and 647812 transitions. [2022-04-18 18:47:51,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:47:51,796 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-04-18 18:47:51,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:47:53,090 INFO L225 Difference]: With dead ends: 185892 [2022-04-18 18:47:53,091 INFO L226 Difference]: Without dead ends: 185838 [2022-04-18 18:47:53,091 INFO L912 BasicCegarLoop]: 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 [2022-04-18 18:47:53,093 INFO L913 BasicCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:47:53,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:47:53,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185838 states. [2022-04-18 18:47:58,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185838 to 185838. [2022-04-18 18:47:59,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185838 states, 184399 states have (on average 3.5118737086426717) internal successors, (647586), 185837 states have internal predecessors, (647586), 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) [2022-04-18 18:48:00,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185838 states to 185838 states and 647586 transitions. [2022-04-18 18:48:00,721 INFO L78 Accepts]: Start accepts. Automaton has 185838 states and 647586 transitions. Word has length 3 [2022-04-18 18:48:00,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:48:00,730 INFO L478 AbstractCegarLoop]: Abstraction has 185838 states and 647586 transitions. [2022-04-18 18:48:00,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-04-18 18:48:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 185838 states and 647586 transitions. [2022-04-18 18:48:00,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 18:48:00,731 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:48:00,731 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 18:48:00,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:48:00,731 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-04-18 18:48:00,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:48:00,739 INFO L85 PathProgramCache]: Analyzing trace with hash 71733682, now seen corresponding path program 1 times [2022-04-18 18:48:00,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:48:00,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976745144] [2022-04-18 18:48:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:48:00,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:48:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:48:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:48:00,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:48:00,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976745144] [2022-04-18 18:48:00,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976745144] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:48:00,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:48:00,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:48:00,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901791256] [2022-04-18 18:48:00,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:48:00,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:48:00,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:48:00,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:48:00,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:48:00,838 INFO L87 Difference]: Start difference. First operand 185838 states and 647586 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-04-18 18:48:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:48:03,231 INFO L93 Difference]: Finished difference Result 288784 states and 988962 transitions. [2022-04-18 18:48:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:48:03,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 [2022-04-18 18:48:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:48:05,593 INFO L225 Difference]: With dead ends: 288784 [2022-04-18 18:48:05,594 INFO L226 Difference]: Without dead ends: 288784 [2022-04-18 18:48:05,594 INFO L912 BasicCegarLoop]: 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 [2022-04-18 18:48:05,595 INFO L913 BasicCegarLoop]: 85 mSDtfsCounter, 149 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:48:05,601 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 139 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:48:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288784 states. [2022-04-18 18:48:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288784 to 192188. [2022-04-18 18:48:13,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192188 states, 190806 states have (on average 3.469361550475352) internal successors, (661975), 192187 states have internal predecessors, (661975), 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) [2022-04-18 18:48:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192188 states to 192188 states and 661975 transitions. [2022-04-18 18:48:14,428 INFO L78 Accepts]: Start accepts. Automaton has 192188 states and 661975 transitions. Word has length 4 [2022-04-18 18:48:14,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:48:14,428 INFO L478 AbstractCegarLoop]: Abstraction has 192188 states and 661975 transitions. [2022-04-18 18:48:14,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-04-18 18:48:14,429 INFO L276 IsEmpty]: Start isEmpty. Operand 192188 states and 661975 transitions. [2022-04-18 18:48:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 18:48:14,429 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:48:14,429 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:48:14,430 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:48:14,430 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting loaderErr1ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-04-18 18:48:14,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:48:14,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2026998821, now seen corresponding path program 1 times [2022-04-18 18:48:14,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:48:14,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059464460] [2022-04-18 18:48:14,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:48:14,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:48:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:48:14,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:48:14,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:48:14,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059464460] [2022-04-18 18:48:14,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059464460] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:48:14,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:48:14,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:48:14,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106557526] [2022-04-18 18:48:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:48:14,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:48:14,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:48:14,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:48:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:48:14,489 INFO L87 Difference]: Start difference. First operand 192188 states and 661975 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-18 18:48:17,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:48:17,415 INFO L93 Difference]: Finished difference Result 200070 states and 689823 transitions. [2022-04-18 18:48:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:48:17,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-04-18 18:48:17,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:48:18,478 INFO L225 Difference]: With dead ends: 200070 [2022-04-18 18:48:18,479 INFO L226 Difference]: Without dead ends: 200070 [2022-04-18 18:48:18,479 INFO L912 BasicCegarLoop]: 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 [2022-04-18 18:48:18,482 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 131 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:48:18,483 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 179 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:48:18,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200070 states. [2022-04-18 18:48:24,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200070 to 200070. [2022-04-18 18:48:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200070 states, 198689 states have (on average 3.471873128356376) internal successors, (689823), 200069 states have internal predecessors, (689823), 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)