./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.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/queue.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 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:13:39,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:13:39,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:13:39,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:13:39,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:13:39,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:13:39,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:13:39,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:13:39,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:13:39,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:13:39,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:13:39,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:13:39,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:13:39,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:13:39,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:13:39,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:13:39,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:13:39,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:13:39,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:13:39,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:13:39,704 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:13:39,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:13:39,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:13:39,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:13:39,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:13:39,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:13:39,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:13:39,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:13:39,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:13:39,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:13:39,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:13:39,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:13:39,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:13:39,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:13:39,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:13:39,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:13:39,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:13:39,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:13:39,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:13:39,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:13:39,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:13:39,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:13:39,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:13:39,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:13:39,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:13:39,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:13:39,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:13:39,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:13:39,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:13:39,747 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:13:39,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:13:39,747 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:13:39,748 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:13:39,748 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:13:39,748 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:13:39,749 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:13:39,749 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:13:39,749 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:13:39,749 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:13:39,749 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:13:39,749 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:13:39,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:13:39,750 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:13:39,751 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:13:39,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:13:39,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:13:39,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:13:39,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:13:39,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:13:39,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:13:39,752 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:13:39,752 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:13:39,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:13:39,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:13:39,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:13:39,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:13:39,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:13:39,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:13:39,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:13:39,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:13:39,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:13:39,753 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:13:39,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:13:39,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:13:39,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:13:39,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:13:39,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2022-04-18 20:13:39,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:13:39,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:13:39,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:13:39,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:13:39,960 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:13:39,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i [2022-04-18 20:13:40,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c1893e2ec/74c16415db644da8ac7c0e861c4fceae/FLAGc858eee90 [2022-04-18 20:13:40,424 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:13:40,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i [2022-04-18 20:13:40,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c1893e2ec/74c16415db644da8ac7c0e861c4fceae/FLAGc858eee90 [2022-04-18 20:13:40,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c1893e2ec/74c16415db644da8ac7c0e861c4fceae [2022-04-18 20:13:40,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:13:40,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:13:40,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:13:40,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:13:40,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:13:40,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:40,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@776d1344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40, skipping insertion in model container [2022-04-18 20:13:40,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:40,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:13:40,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:13:40,802 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/queue.i[43284,43297] [2022-04-18 20:13:40,805 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/queue.i[43491,43504] [2022-04-18 20:13:40,806 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/queue.i[43772,43785] [2022-04-18 20:13:40,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:13:40,815 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:13:40,851 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/queue.i[43284,43297] [2022-04-18 20:13:40,853 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/queue.i[43491,43504] [2022-04-18 20:13:40,855 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/queue.i[43772,43785] [2022-04-18 20:13:40,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:13:40,895 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:13:40,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40 WrapperNode [2022-04-18 20:13:40,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:13:40,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:13:40,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:13:40,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:13:40,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:40,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:40,965 INFO L137 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 484 [2022-04-18 20:13:40,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:13:40,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:13:40,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:13:40,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:13:40,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:40,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:40,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:40,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:41,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:41,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:41,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:41,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:13:41,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:13:41,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:13:41,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:13:41,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (1/1) ... [2022-04-18 20:13:41,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:13:41,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:13:41,108 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 20:13:41,125 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 20:13:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 20:13:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 20:13:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 20:13:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 20:13:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:13:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:13:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:13:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:13:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 20:13:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:13:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:13:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:13:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:13:41,142 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 20:13:41,295 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:13:41,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:13:41,743 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:13:41,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:13:41,756 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 20:13:41,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:41 BoogieIcfgContainer [2022-04-18 20:13:41,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:13:41,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:13:41,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:13:41,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:13:41,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:13:40" (1/3) ... [2022-04-18 20:13:41,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc84cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:41, skipping insertion in model container [2022-04-18 20:13:41,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:40" (2/3) ... [2022-04-18 20:13:41,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc84cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:41, skipping insertion in model container [2022-04-18 20:13:41,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:41" (3/3) ... [2022-04-18 20:13:41,766 INFO L111 eAbstractionObserver]: Analyzing ICFG queue.i [2022-04-18 20:13:41,769 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:13:41,770 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:13:41,770 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-04-18 20:13:41,770 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:13:41,899 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 20:13:41,946 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:13:41,951 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 20:13:41,951 INFO L341 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-04-18 20:13:41,966 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:13:41,974 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 547 places, 555 transitions, 1126 flow [2022-04-18 20:13:41,981 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 547 places, 555 transitions, 1126 flow [2022-04-18 20:13:41,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 547 places, 555 transitions, 1126 flow [2022-04-18 20:13:42,173 INFO L129 PetriNetUnfolder]: 15/553 cut-off events. [2022-04-18 20:13:42,173 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 20:13:42,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 553 events. 15/553 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 799 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-04-18 20:13:42,230 INFO L116 LiptonReduction]: Number of co-enabled transitions 83848 [2022-04-18 20:14:04,349 WARN L232 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:10,760 WARN L232 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:18,265 WARN L232 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 133 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:24,376 WARN L232 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:40,228 WARN L232 SmtUtils]: Spent 15.79s on a formula simplification. DAG size of input: 233 DAG size of output: 222 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:45,745 WARN L232 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 217 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:50,842 WARN L232 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 237 DAG size of output: 226 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:52,281 INFO L131 LiptonReduction]: Checked pairs total: 1454500 [2022-04-18 20:14:52,282 INFO L133 LiptonReduction]: Total number of compositions: 368 [2022-04-18 20:14:52,288 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 273 places, 276 transitions, 568 flow [2022-04-18 20:14:54,789 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 100812 states, 100169 states have (on average 2.948427158102806) internal successors, (295341), 100811 states have internal predecessors, (295341), 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 20:14:55,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 100812 states, 100169 states have (on average 2.948427158102806) internal successors, (295341), 100811 states have internal predecessors, (295341), 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 20:14:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:14:55,008 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:55,008 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:14:55,009 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:14:55,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:55,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 1 times [2022-04-18 20:14:55,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:55,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41850031] [2022-04-18 20:14:55,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:55,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:55,107 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 20:14:55,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:55,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41850031] [2022-04-18 20:14:55,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41850031] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:55,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:55,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:14:55,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169633212] [2022-04-18 20:14:55,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:55,113 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:14:55,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:55,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:14:55,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:14:55,401 INFO L87 Difference]: Start difference. First operand has 100812 states, 100169 states have (on average 2.948427158102806) internal successors, (295341), 100811 states have internal predecessors, (295341), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 20:14:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:56,633 INFO L93 Difference]: Finished difference Result 100805 states and 293428 transitions. [2022-04-18 20:14:56,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:14:56,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-04-18 20:14:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:57,615 INFO L225 Difference]: With dead ends: 100805 [2022-04-18 20:14:57,615 INFO L226 Difference]: Without dead ends: 100805 [2022-04-18 20:14:57,616 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 20:14:57,618 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:57,619 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100805 states. [2022-04-18 20:15:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100805 to 100805. [2022-04-18 20:15:00,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100805 states, 100169 states have (on average 2.929329433257794) internal successors, (293428), 100804 states have internal predecessors, (293428), 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 20:15:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100805 states to 100805 states and 293428 transitions. [2022-04-18 20:15:01,485 INFO L78 Accepts]: Start accepts. Automaton has 100805 states and 293428 transitions. Word has length 1 [2022-04-18 20:15:01,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:15:01,486 INFO L478 AbstractCegarLoop]: Abstraction has 100805 states and 293428 transitions. [2022-04-18 20:15:01,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 20:15:01,487 INFO L276 IsEmpty]: Start isEmpty. Operand 100805 states and 293428 transitions. [2022-04-18 20:15:01,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 20:15:01,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:15:01,490 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:15:01,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:15:01,491 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:15:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:15:01,493 INFO L85 PathProgramCache]: Analyzing trace with hash -266743638, now seen corresponding path program 1 times [2022-04-18 20:15:01,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:15:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140666850] [2022-04-18 20:15:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:15:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:15:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:15:01,648 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 20:15:01,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:15:01,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140666850] [2022-04-18 20:15:01,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140666850] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:15:01,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:15:01,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:15:01,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518665356] [2022-04-18 20:15:01,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:15:01,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:15:01,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:15:01,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:15:01,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:15:01,653 INFO L87 Difference]: Start difference. First operand 100805 states and 293428 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 20:15:03,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:15:03,024 INFO L93 Difference]: Finished difference Result 146868 states and 427786 transitions. [2022-04-18 20:15:03,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:15:03,025 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 20:15:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:15:03,609 INFO L225 Difference]: With dead ends: 146868 [2022-04-18 20:15:03,610 INFO L226 Difference]: Without dead ends: 146868 [2022-04-18 20:15:03,610 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 20:15:03,619 INFO L913 BasicCegarLoop]: 299 mSDtfsCounter, 245 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:15:03,620 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 472 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:15:03,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146868 states. [2022-04-18 20:15:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146868 to 100813. [2022-04-18 20:15:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100813 states, 100199 states have (on average 2.93507919240711) internal successors, (294092), 100812 states have internal predecessors, (294092), 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 20:15:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100813 states to 100813 states and 294092 transitions. [2022-04-18 20:15:07,144 INFO L78 Accepts]: Start accepts. Automaton has 100813 states and 294092 transitions. Word has length 8 [2022-04-18 20:15:07,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:15:07,146 INFO L478 AbstractCegarLoop]: Abstraction has 100813 states and 294092 transitions. [2022-04-18 20:15:07,146 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 20:15:07,146 INFO L276 IsEmpty]: Start isEmpty. Operand 100813 states and 294092 transitions. [2022-04-18 20:15:07,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 20:15:07,148 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:15:07,148 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:15:07,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:15:07,153 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:15:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:15:07,154 INFO L85 PathProgramCache]: Analyzing trace with hash 970276977, now seen corresponding path program 1 times [2022-04-18 20:15:07,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:15:07,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643968091] [2022-04-18 20:15:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:15:07,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:15:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:15:07,280 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 20:15:07,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:15:07,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643968091] [2022-04-18 20:15:07,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643968091] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:15:07,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:15:07,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:15:07,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279534234] [2022-04-18 20:15:07,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:15:07,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:15:07,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:15:07,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:15:07,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:07,282 INFO L87 Difference]: Start difference. First operand 100813 states and 294092 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 20:15:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:15:09,334 INFO L93 Difference]: Finished difference Result 129041 states and 377202 transitions. [2022-04-18 20:15:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:15:09,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 20:15:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:15:09,895 INFO L225 Difference]: With dead ends: 129041 [2022-04-18 20:15:09,895 INFO L226 Difference]: Without dead ends: 129041 [2022-04-18 20:15:09,896 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:09,897 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 232 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 20:15:09,897 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 278 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 20:15:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129041 states. [2022-04-18 20:15:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129041 to 115489. [2022-04-18 20:15:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115489 states, 114881 states have (on average 2.941200024373047) internal successors, (337888), 115488 states have internal predecessors, (337888), 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 20:15:13,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115489 states to 115489 states and 337888 transitions. [2022-04-18 20:15:13,613 INFO L78 Accepts]: Start accepts. Automaton has 115489 states and 337888 transitions. Word has length 9 [2022-04-18 20:15:13,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:15:13,614 INFO L478 AbstractCegarLoop]: Abstraction has 115489 states and 337888 transitions. [2022-04-18 20:15:13,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 20:15:13,614 INFO L276 IsEmpty]: Start isEmpty. Operand 115489 states and 337888 transitions. [2022-04-18 20:15:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 20:15:13,615 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:15:13,615 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:15:13,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:15:13,616 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:15:13,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:15:13,616 INFO L85 PathProgramCache]: Analyzing trace with hash -32418433, now seen corresponding path program 1 times [2022-04-18 20:15:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:15:13,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427257157] [2022-04-18 20:15:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:15:13,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:15:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:15:13,715 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 20:15:13,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:15:13,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427257157] [2022-04-18 20:15:13,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427257157] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:15:13,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:15:13,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:15:13,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371944017] [2022-04-18 20:15:13,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:15:13,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:15:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:15:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:15:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:13,719 INFO L87 Difference]: Start difference. First operand 115489 states and 337888 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:15:16,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:15:16,731 INFO L93 Difference]: Finished difference Result 187664 states and 543649 transitions. [2022-04-18 20:15:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:15:16,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:15:16,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:15:17,462 INFO L225 Difference]: With dead ends: 187664 [2022-04-18 20:15:17,463 INFO L226 Difference]: Without dead ends: 187664 [2022-04-18 20:15:17,463 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:17,464 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 519 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 20:15:17,464 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 354 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 20:15:17,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187664 states. [2022-04-18 20:15:21,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187664 to 172716. [2022-04-18 20:15:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172716 states, 172108 states have (on average 2.9800880842261837) internal successors, (512897), 172715 states have internal predecessors, (512897), 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 20:15:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172716 states to 172716 states and 512897 transitions. [2022-04-18 20:15:23,226 INFO L78 Accepts]: Start accepts. Automaton has 172716 states and 512897 transitions. Word has length 10 [2022-04-18 20:15:23,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:15:23,229 INFO L478 AbstractCegarLoop]: Abstraction has 172716 states and 512897 transitions. [2022-04-18 20:15:23,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:15:23,230 INFO L276 IsEmpty]: Start isEmpty. Operand 172716 states and 512897 transitions. [2022-04-18 20:15:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 20:15:23,235 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:15:23,235 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:15:23,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:15:23,239 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:15:23,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:15:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash 288040614, now seen corresponding path program 1 times [2022-04-18 20:15:23,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:15:23,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075548677] [2022-04-18 20:15:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:15:23,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:15:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:15:23,327 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 20:15:23,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:15:23,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075548677] [2022-04-18 20:15:23,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075548677] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:15:23,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:15:23,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:15:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080555920] [2022-04-18 20:15:23,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:15:23,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:15:23,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:15:23,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:15:23,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:23,330 INFO L87 Difference]: Start difference. First operand 172716 states and 512897 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 20:15:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:15:26,792 INFO L93 Difference]: Finished difference Result 255340 states and 757123 transitions. [2022-04-18 20:15:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:15:26,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-04-18 20:15:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:15:27,764 INFO L225 Difference]: With dead ends: 255340 [2022-04-18 20:15:27,764 INFO L226 Difference]: Without dead ends: 255340 [2022-04-18 20:15:27,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:27,767 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 415 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 20:15:27,767 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 234 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 20:15:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255340 states. [2022-04-18 20:15:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255340 to 192000. [2022-04-18 20:15:32,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192000 states, 191428 states have (on average 2.983565622583948) internal successors, (571138), 191999 states have internal predecessors, (571138), 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 20:15:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192000 states to 192000 states and 571138 transitions. [2022-04-18 20:15:34,244 INFO L78 Accepts]: Start accepts. Automaton has 192000 states and 571138 transitions. Word has length 14 [2022-04-18 20:15:34,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:15:34,245 INFO L478 AbstractCegarLoop]: Abstraction has 192000 states and 571138 transitions. [2022-04-18 20:15:34,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 20:15:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 192000 states and 571138 transitions. [2022-04-18 20:15:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 20:15:34,246 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:15:34,246 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:15:34,246 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:15:34,247 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:15:34,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:15:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash 970274947, now seen corresponding path program 1 times [2022-04-18 20:15:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:15:34,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134335749] [2022-04-18 20:15:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:15:34,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:15:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:15:34,348 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 20:15:34,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:15:34,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134335749] [2022-04-18 20:15:34,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134335749] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:15:34,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:15:34,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:15:34,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883065735] [2022-04-18 20:15:34,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:15:34,350 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:15:34,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:15:34,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:15:34,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:34,351 INFO L87 Difference]: Start difference. First operand 192000 states and 571138 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 20:15:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:15:36,822 INFO L93 Difference]: Finished difference Result 196990 states and 585629 transitions. [2022-04-18 20:15:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:15:36,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-04-18 20:15:36,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:15:37,648 INFO L225 Difference]: With dead ends: 196990 [2022-04-18 20:15:37,648 INFO L226 Difference]: Without dead ends: 196990 [2022-04-18 20:15:37,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:15:37,650 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 200 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 20:15:37,650 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 306 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 20:15:38,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196990 states.