./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.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-ext/32_pthread5_vs.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 a1dca423de1ee0965d72c4be0ada5e821e4dbfc023ab1c498b90df0e18b4c1f3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:17:00,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:17:00,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:17:00,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:17:00,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:17:00,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:17:00,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:17:00,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:17:00,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:17:00,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:17:00,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:17:00,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:17:00,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:17:00,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:17:00,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:17:00,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:17:00,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:17:00,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:17:00,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:17:00,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:17:00,460 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:17:00,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:17:00,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:17:00,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:17:00,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:17:00,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:17:00,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:17:00,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:17:00,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:17:00,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:17:00,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:17:00,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:17:00,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:17:00,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:17:00,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:17:00,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:17:00,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:17:00,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:17:00,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:17:00,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:17:00,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:17:00,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:17:00,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:17:00,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:17:00,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:17:00,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:17:00,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:17:00,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:17:00,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:17:00,506 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:17:00,506 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:17:00,507 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:17:00,507 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:17:00,507 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:17:00,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:17:00,508 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:17:00,508 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:17:00,508 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:17:00,508 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:17:00,509 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:17:00,509 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:17:00,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:17:00,510 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:17:00,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:17:00,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:17:00,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:17:00,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:17:00,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:17:00,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:17:00,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:17:00,511 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:17:00,512 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:17:00,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:17:00,512 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:17:00,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:17:00,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:17:00,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:17:00,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:17:00,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:17:00,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:17:00,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:17:00,513 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:17:00,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:17:00,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:17:00,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:17:00,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:17:00,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1dca423de1ee0965d72c4be0ada5e821e4dbfc023ab1c498b90df0e18b4c1f3 [2022-04-18 19:17:00,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:17:00,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:17:00,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:17:00,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:17:00,722 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:17:00,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2022-04-18 19:17:00,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/93a89e98d/34c8f58c0c704d97bb4b0bc90e9740f7/FLAG10ff40ac4 [2022-04-18 19:17:01,135 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:17:01,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2022-04-18 19:17:01,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/93a89e98d/34c8f58c0c704d97bb4b0bc90e9740f7/FLAG10ff40ac4 [2022-04-18 19:17:01,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/93a89e98d/34c8f58c0c704d97bb4b0bc90e9740f7 [2022-04-18 19:17:01,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:17:01,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:17:01,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:17:01,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:17:01,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:17:01,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:01,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e8f8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01, skipping insertion in model container [2022-04-18 19:17:01,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:01,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:17:01,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:17:01,828 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-ext/32_pthread5_vs.i[30454,30467] [2022-04-18 19:17:01,831 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-ext/32_pthread5_vs.i[30634,30647] [2022-04-18 19:17:01,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:17:01,845 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:17:01,876 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-ext/32_pthread5_vs.i[30454,30467] [2022-04-18 19:17:01,880 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-ext/32_pthread5_vs.i[30634,30647] [2022-04-18 19:17:01,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:17:01,916 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:17:01,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01 WrapperNode [2022-04-18 19:17:01,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:17:01,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:17:01,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:17:01,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:17:01,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:01,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:01,971 INFO L137 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 219 [2022-04-18 19:17:01,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:17:01,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:17:01,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:17:01,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:17:01,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:01,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:01,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:01,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:02,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:02,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:02,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:02,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:17:02,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:17:02,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:17:02,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:17:02,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (1/1) ... [2022-04-18 19:17:02,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:17:02,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:17:02,035 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 19:17:02,055 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 19:17:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-04-18 19:17:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-04-18 19:17:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure thr3 [2022-04-18 19:17:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thr3 [2022-04-18 19:17:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:17:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:17:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:17:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:17:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:17:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:17:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:17:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:17:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:17:02,068 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 19:17:02,164 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:17:02,165 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:17:02,371 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:17:02,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:17:02,567 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 19:17:02,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:02 BoogieIcfgContainer [2022-04-18 19:17:02,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:17:02,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:17:02,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:17:02,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:17:02,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:17:01" (1/3) ... [2022-04-18 19:17:02,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2e4f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:02, skipping insertion in model container [2022-04-18 19:17:02,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:01" (2/3) ... [2022-04-18 19:17:02,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2e4f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:02, skipping insertion in model container [2022-04-18 19:17:02,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:02" (3/3) ... [2022-04-18 19:17:02,576 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_pthread5_vs.i [2022-04-18 19:17:02,579 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:17:02,584 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:17:02,584 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-04-18 19:17:02,584 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:17:02,653 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:17:02,692 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:17:02,699 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 19:17:02,700 INFO L341 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2022-04-18 19:17:02,710 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:17:02,726 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 161 transitions, 337 flow [2022-04-18 19:17:02,728 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 161 transitions, 337 flow [2022-04-18 19:17:02,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 161 transitions, 337 flow [2022-04-18 19:17:02,770 INFO L129 PetriNetUnfolder]: 9/170 cut-off events. [2022-04-18 19:17:02,770 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:17:02,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 170 events. 9/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 438 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 153. Up to 4 conditions per place. [2022-04-18 19:17:02,783 INFO L116 LiptonReduction]: Number of co-enabled transitions 11368 [2022-04-18 19:17:04,765 INFO L131 LiptonReduction]: Checked pairs total: 51634 [2022-04-18 19:17:04,766 INFO L133 LiptonReduction]: Total number of compositions: 132 [2022-04-18 19:17:04,772 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 82 transitions, 179 flow [2022-04-18 19:17:06,113 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52478 states, 50632 states have (on average 3.8926765681782274) internal successors, (197094), 52477 states have internal predecessors, (197094), 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 19:17:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 52478 states, 50632 states have (on average 3.8926765681782274) internal successors, (197094), 52477 states have internal predecessors, (197094), 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 19:17:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-04-18 19:17:06,223 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:06,223 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-04-18 19:17:06,225 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 19:17:06,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:06,228 INFO L85 PathProgramCache]: Analyzing trace with hash 943519, now seen corresponding path program 1 times [2022-04-18 19:17:06,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:06,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586388103] [2022-04-18 19:17:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:06,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:17:06,374 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 19:17:06,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:17:06,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586388103] [2022-04-18 19:17:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586388103] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:17:06,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:17:06,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:17:06,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24814694] [2022-04-18 19:17:06,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:17:06,380 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:17:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:17:06,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:17:06,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:17:06,476 INFO L87 Difference]: Start difference. First operand has 52478 states, 50632 states have (on average 3.8926765681782274) internal successors, (197094), 52477 states have internal predecessors, (197094), 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 19:17:06,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:17:06,834 INFO L93 Difference]: Finished difference Result 16682 states and 61650 transitions. [2022-04-18 19:17:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:17:06,836 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 19:17:06,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:17:06,985 INFO L225 Difference]: With dead ends: 16682 [2022-04-18 19:17:06,986 INFO L226 Difference]: Without dead ends: 16682 [2022-04-18 19:17:06,986 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 19:17:06,990 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:17:06,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:17:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16682 states. [2022-04-18 19:17:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16682 to 16682. [2022-04-18 19:17:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16682 states, 16626 states have (on average 3.708047636232407) internal successors, (61650), 16681 states have internal predecessors, (61650), 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 19:17:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16682 states to 16682 states and 61650 transitions. [2022-04-18 19:17:07,864 INFO L78 Accepts]: Start accepts. Automaton has 16682 states and 61650 transitions. Word has length 3 [2022-04-18 19:17:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:17:07,865 INFO L478 AbstractCegarLoop]: Abstraction has 16682 states and 61650 transitions. [2022-04-18 19:17:07,865 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 19:17:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 16682 states and 61650 transitions. [2022-04-18 19:17:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:17:07,866 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:07,866 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:17:07,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:17:07,867 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 19:17:07,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1955601757, now seen corresponding path program 1 times [2022-04-18 19:17:07,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:07,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132081924] [2022-04-18 19:17:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:07,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:17:07,961 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 19:17:07,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:17:07,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132081924] [2022-04-18 19:17:07,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132081924] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:17:07,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:17:07,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:17:07,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822971503] [2022-04-18 19:17:07,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:17:07,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:17:07,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:17:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:17:07,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:17:07,963 INFO L87 Difference]: Start difference. First operand 16682 states and 61650 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:17:08,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:17:08,324 INFO L93 Difference]: Finished difference Result 17760 states and 65710 transitions. [2022-04-18 19:17:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:17:08,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-04-18 19:17:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:17:08,540 INFO L225 Difference]: With dead ends: 17760 [2022-04-18 19:17:08,547 INFO L226 Difference]: Without dead ends: 17760 [2022-04-18 19:17:08,547 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 19:17:08,548 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 41 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:17:08,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 59 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:17:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17760 states. [2022-04-18 19:17:09,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17760 to 17760. [2022-04-18 19:17:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17760 states, 17704 states have (on average 3.7115906009941257) internal successors, (65710), 17759 states have internal predecessors, (65710), 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 19:17:09,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17760 states to 17760 states and 65710 transitions. [2022-04-18 19:17:09,095 INFO L78 Accepts]: Start accepts. Automaton has 17760 states and 65710 transitions. Word has length 6 [2022-04-18 19:17:09,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:17:09,096 INFO L478 AbstractCegarLoop]: Abstraction has 17760 states and 65710 transitions. [2022-04-18 19:17:09,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:17:09,096 INFO L276 IsEmpty]: Start isEmpty. Operand 17760 states and 65710 transitions. [2022-04-18 19:17:09,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 19:17:09,097 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:09,097 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:17:09,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:17:09,097 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 19:17:09,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:09,098 INFO L85 PathProgramCache]: Analyzing trace with hash -882829968, now seen corresponding path program 1 times [2022-04-18 19:17:09,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:09,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547503813] [2022-04-18 19:17:09,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:09,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:17:09,120 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 19:17:09,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:17:09,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547503813] [2022-04-18 19:17:09,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547503813] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:17:09,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:17:09,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:17:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459967974] [2022-04-18 19:17:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:17:09,122 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:17:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:17:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:17:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:17:09,123 INFO L87 Difference]: Start difference. First operand 17760 states and 65710 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 19:17:09,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:17:09,351 INFO L93 Difference]: Finished difference Result 30888 states and 113162 transitions. [2022-04-18 19:17:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:17:09,352 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 19:17:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:17:09,852 INFO L225 Difference]: With dead ends: 30888 [2022-04-18 19:17:09,852 INFO L226 Difference]: Without dead ends: 30888 [2022-04-18 19:17:09,853 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 19:17:09,853 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 50 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:17:09,855 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 57 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:17:09,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30888 states. [2022-04-18 19:17:10,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30888 to 19431. [2022-04-18 19:17:10,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19431 states, 19376 states have (on average 3.694777043765483) internal successors, (71590), 19430 states have internal predecessors, (71590), 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 19:17:10,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19431 states to 19431 states and 71590 transitions. [2022-04-18 19:17:10,557 INFO L78 Accepts]: Start accepts. Automaton has 19431 states and 71590 transitions. Word has length 8 [2022-04-18 19:17:10,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:17:10,557 INFO L478 AbstractCegarLoop]: Abstraction has 19431 states and 71590 transitions. [2022-04-18 19:17:10,557 INFO L479 AbstractCegarLoop]: INTERPOLANT 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) [2022-04-18 19:17:10,557 INFO L276 IsEmpty]: Start isEmpty. Operand 19431 states and 71590 transitions. [2022-04-18 19:17:10,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:17:10,558 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:10,558 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:17:10,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:17:10,559 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 19:17:10,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:10,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1902431770, now seen corresponding path program 1 times [2022-04-18 19:17:10,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:10,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816117640] [2022-04-18 19:17:10,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:10,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:17:10,600 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 19:17:10,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:17:10,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816117640] [2022-04-18 19:17:10,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816117640] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:17:10,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:17:10,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:17:10,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987551592] [2022-04-18 19:17:10,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:17:10,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:17:10,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:17:10,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:17:10,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:17:10,605 INFO L87 Difference]: Start difference. First operand 19431 states and 71590 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 19:17:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:17:10,799 INFO L93 Difference]: Finished difference Result 21664 states and 79950 transitions. [2022-04-18 19:17:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:17:10,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-04-18 19:17:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:17:11,081 INFO L225 Difference]: With dead ends: 21664 [2022-04-18 19:17:11,082 INFO L226 Difference]: Without dead ends: 21664 [2022-04-18 19:17:11,082 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 19:17:11,083 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 43 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:17:11,083 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 59 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:17:11,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21664 states. [2022-04-18 19:17:11,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21664 to 20500. [2022-04-18 19:17:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20500 states, 20446 states have (on average 3.6969089308422185) internal successors, (75587), 20499 states have internal predecessors, (75587), 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 19:17:11,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20500 states to 20500 states and 75587 transitions. [2022-04-18 19:17:11,720 INFO L78 Accepts]: Start accepts. Automaton has 20500 states and 75587 transitions. Word has length 9 [2022-04-18 19:17:11,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:17:11,720 INFO L478 AbstractCegarLoop]: Abstraction has 20500 states and 75587 transitions. [2022-04-18 19:17:11,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 19:17:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 20500 states and 75587 transitions. [2022-04-18 19:17:11,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:17:11,726 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:11,726 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:17:11,726 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:17:11,727 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 19:17:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2003948754, now seen corresponding path program 1 times [2022-04-18 19:17:11,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:11,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491772520] [2022-04-18 19:17:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:11,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:17:11,763 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 19:17:11,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:17:11,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491772520] [2022-04-18 19:17:11,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491772520] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:17:11,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:17:11,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:17:11,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270156610] [2022-04-18 19:17:11,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:17:11,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:17:11,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:17:11,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:17:11,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:17:11,769 INFO L87 Difference]: Start difference. First operand 20500 states and 75587 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 19:17:12,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:17:12,153 INFO L93 Difference]: Finished difference Result 32409 states and 118613 transitions. [2022-04-18 19:17:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:17:12,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-04-18 19:17:12,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:17:12,288 INFO L225 Difference]: With dead ends: 32409 [2022-04-18 19:17:12,288 INFO L226 Difference]: Without dead ends: 32409 [2022-04-18 19:17:12,288 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 19:17:12,289 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:17:12,289 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 62 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:17:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32409 states. [2022-04-18 19:17:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32409 to 21424. [2022-04-18 19:17:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21424 states, 21378 states have (on average 3.6827579754888204) internal successors, (78730), 21423 states have internal predecessors, (78730), 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 19:17:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21424 states to 21424 states and 78730 transitions. [2022-04-18 19:17:13,006 INFO L78 Accepts]: Start accepts. Automaton has 21424 states and 78730 transitions. Word has length 10 [2022-04-18 19:17:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:17:13,007 INFO L478 AbstractCegarLoop]: Abstraction has 21424 states and 78730 transitions. [2022-04-18 19:17:13,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 19:17:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 21424 states and 78730 transitions. [2022-04-18 19:17:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:17:13,008 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:13,008 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:17:13,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:17:13,008 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 19:17:13,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:13,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1687045443, now seen corresponding path program 1 times [2022-04-18 19:17:13,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:13,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132257238] [2022-04-18 19:17:13,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:13,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:17:13,035 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:17:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:17:13,058 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:17:13,059 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:17:13,060 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (58 of 59 remaining) [2022-04-18 19:17:13,062 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2022-04-18 19:17:13,062 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err0ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err1ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err5ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2022-04-18 19:17:13,063 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err6ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err7ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err8ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err2ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err9ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err13ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err14ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err3ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2022-04-18 19:17:13,064 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err10ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err11ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err4ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err12ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2022-04-18 19:17:13,065 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2022-04-18 19:17:13,066 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (24 of 59 remaining) [2022-04-18 19:17:13,067 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (23 of 59 remaining) [2022-04-18 19:17:13,067 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2022-04-18 19:17:13,067 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err0ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2022-04-18 19:17:13,067 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err1ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2022-04-18 19:17:13,067 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err5ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2022-04-18 19:17:13,070 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err6ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2022-04-18 19:17:13,071 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err7ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2022-04-18 19:17:13,071 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err8ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2022-04-18 19:17:13,071 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err2ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2022-04-18 19:17:13,071 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err9ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2022-04-18 19:17:13,071 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err13ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2022-04-18 19:17:13,071 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err14ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2022-04-18 19:17:13,071 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err3ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err10ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err11ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err4ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err12ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2022-04-18 19:17:13,072 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2022-04-18 19:17:13,073 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2022-04-18 19:17:13,073 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2022-04-18 19:17:13,073 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2022-04-18 19:17:13,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 19:17:13,075 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-04-18 19:17:13,077 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:17:13,077 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:17:13,107 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:17:13,108 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:17:13,108 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 19:17:13,108 INFO L341 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2022-04-18 19:17:13,113 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:17:13,113 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 278 transitions, 592 flow [2022-04-18 19:17:13,113 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 278 transitions, 592 flow [2022-04-18 19:17:13,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 278 transitions, 592 flow [2022-04-18 19:17:13,149 INFO L129 PetriNetUnfolder]: 14/249 cut-off events. [2022-04-18 19:17:13,149 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:17:13,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 249 events. 14/249 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 836 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 260. Up to 6 conditions per place. [2022-04-18 19:17:13,165 INFO L116 LiptonReduction]: Number of co-enabled transitions 28236 [2022-04-18 19:17:16,024 INFO L131 LiptonReduction]: Checked pairs total: 151633 [2022-04-18 19:17:16,025 INFO L133 LiptonReduction]: Total number of compositions: 211 [2022-04-18 19:17:16,026 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 150 transitions, 336 flow