./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.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/stack_longest-1.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 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:14:37,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:14:37,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:14:37,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:14:37,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:14:37,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:14:37,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:14:37,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:14:37,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:14:37,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:14:37,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:14:37,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:14:37,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:14:37,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:14:37,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:14:37,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:14:37,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:14:37,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:14:37,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:14:37,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:14:37,741 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:14:37,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:14:37,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:14:37,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:14:37,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:14:37,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:14:37,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:14:37,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:14:37,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:14:37,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:14:37,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:14:37,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:14:37,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:14:37,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:14:37,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:14:37,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:14:37,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:14:37,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:14:37,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:14:37,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:14:37,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:14:37,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:14:37,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:14:37,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:14:37,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:14:37,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:14:37,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:14:37,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:14:37,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:14:37,785 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:14:37,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:14:37,785 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:14:37,785 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:14:37,786 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:14:37,786 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:14:37,786 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:14:37,786 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:14:37,786 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:14:37,786 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:14:37,786 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:14:37,786 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:14:37,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:14:37,787 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:14:37,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:14:37,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:14:37,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:14:37,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:14:37,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:14:37,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:14:37,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:14:37,788 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:14:37,788 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:14:37,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:14:37,788 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:14:37,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:14:37,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:14:37,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:14:37,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:37,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:14:37,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:14:37,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:14:37,789 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:14:37,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:14:37,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:14:37,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:14:37,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:14:37,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 [2022-04-18 20:14:37,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:14:38,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:14:38,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:14:38,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:14:38,020 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:14:38,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2022-04-18 20:14:38,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/114148804/2950d8853c5247babc7dc05929521c35/FLAG73f6f86aa [2022-04-18 20:14:38,442 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:14:38,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2022-04-18 20:14:38,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/114148804/2950d8853c5247babc7dc05929521c35/FLAG73f6f86aa [2022-04-18 20:14:38,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/114148804/2950d8853c5247babc7dc05929521c35 [2022-04-18 20:14:38,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:14:38,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:14:38,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:38,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:14:38,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:14:38,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:38" (1/1) ... [2022-04-18 20:14:38,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe6445e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:38, skipping insertion in model container [2022-04-18 20:14:38,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:38" (1/1) ... [2022-04-18 20:14:38,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:14:38,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:14:39,206 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/stack_longest-1.i[41530,41543] [2022-04-18 20:14:39,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:39,246 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:14:39,280 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/stack_longest-1.i[41530,41543] [2022-04-18 20:14:39,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:39,322 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:14:39,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39 WrapperNode [2022-04-18 20:14:39,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:39,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:39,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:14:39,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:14:39,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,391 INFO L137 Inliner]: procedures = 277, calls = 41, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 205 [2022-04-18 20:14:39,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:39,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:14:39,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:14:39,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:14:39,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:14:39,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:14:39,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:14:39,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:14:39,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (1/1) ... [2022-04-18 20:14:39,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:39,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:39,481 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 20:14:39,486 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 20:14:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 20:14:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 20:14:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 20:14:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 20:14:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:14:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:14:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:14:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:14:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 20:14:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:14:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:14:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:14:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:14:39,508 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 20:14:39,632 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:14:39,633 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:14:39,915 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:14:39,922 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:14:39,923 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 20:14:39,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:39 BoogieIcfgContainer [2022-04-18 20:14:39,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:14:39,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:14:39,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:14:39,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:14:39,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:14:38" (1/3) ... [2022-04-18 20:14:39,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69dc9f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:39, skipping insertion in model container [2022-04-18 20:14:39,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:39" (2/3) ... [2022-04-18 20:14:39,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69dc9f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:39, skipping insertion in model container [2022-04-18 20:14:39,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:39" (3/3) ... [2022-04-18 20:14:39,930 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2022-04-18 20:14:39,934 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:14:39,934 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:14:39,934 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-04-18 20:14:39,934 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:14:40,029 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 20:14:40,071 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:14:40,076 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 20:14:40,077 INFO L341 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-04-18 20:14:40,093 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:14:40,101 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 241 transitions, 498 flow [2022-04-18 20:14:40,103 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 241 transitions, 498 flow [2022-04-18 20:14:40,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 238 places, 241 transitions, 498 flow [2022-04-18 20:14:40,156 INFO L129 PetriNetUnfolder]: 10/239 cut-off events. [2022-04-18 20:14:40,157 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 20:14:40,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 10/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 581 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2022-04-18 20:14:40,173 INFO L116 LiptonReduction]: Number of co-enabled transitions 20432 [2022-04-18 20:14:43,779 INFO L131 LiptonReduction]: Checked pairs total: 65011 [2022-04-18 20:14:43,779 INFO L133 LiptonReduction]: Total number of compositions: 175 [2022-04-18 20:14:43,785 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 87 transitions, 190 flow [2022-04-18 20:14:43,950 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7968 states, 7863 states have (on average 2.978634109118657) internal successors, (23421), 7967 states have internal predecessors, (23421), 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 20:14:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 7968 states, 7863 states have (on average 2.978634109118657) internal successors, (23421), 7967 states have internal predecessors, (23421), 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 20:14:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 20:14:43,973 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:43,973 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 20:14:43,974 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:43,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1072693287, now seen corresponding path program 1 times [2022-04-18 20:14:43,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:43,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584105053] [2022-04-18 20:14:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:43,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:44,119 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 20:14:44,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:44,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584105053] [2022-04-18 20:14:44,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584105053] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:44,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:44,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:44,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807238257] [2022-04-18 20:14:44,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:44,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:44,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:44,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:44,193 INFO L87 Difference]: Start difference. First operand has 7968 states, 7863 states have (on average 2.978634109118657) internal successors, (23421), 7967 states have internal predecessors, (23421), 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 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 20:14:44,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:44,416 INFO L93 Difference]: Finished difference Result 10906 states and 30679 transitions. [2022-04-18 20:14:44,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:44,418 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 20:14:44,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:44,486 INFO L225 Difference]: With dead ends: 10906 [2022-04-18 20:14:44,486 INFO L226 Difference]: Without dead ends: 10904 [2022-04-18 20:14:44,487 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 20:14:44,490 INFO L913 BasicCegarLoop]: 49 mSDtfsCounter, 67 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:44,491 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 76 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10904 states. [2022-04-18 20:14:44,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10904 to 8174. [2022-04-18 20:14:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8174 states, 8088 states have (on average 2.84582096933729) internal successors, (23017), 8173 states have internal predecessors, (23017), 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 20:14:44,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8174 states to 8174 states and 23017 transitions. [2022-04-18 20:14:44,839 INFO L78 Accepts]: Start accepts. Automaton has 8174 states and 23017 transitions. Word has length 6 [2022-04-18 20:14:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:44,840 INFO L478 AbstractCegarLoop]: Abstraction has 8174 states and 23017 transitions. [2022-04-18 20:14:44,840 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 20:14:44,840 INFO L276 IsEmpty]: Start isEmpty. Operand 8174 states and 23017 transitions. [2022-04-18 20:14:44,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 20:14:44,841 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:44,841 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:44,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:14:44,842 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:44,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash 884898360, now seen corresponding path program 1 times [2022-04-18 20:14:44,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:44,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807237792] [2022-04-18 20:14:44,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:44,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:44,927 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 20:14:44,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:44,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807237792] [2022-04-18 20:14:44,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807237792] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:44,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:44,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:44,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921503869] [2022-04-18 20:14:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:44,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:44,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:44,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:44,931 INFO L87 Difference]: Start difference. First operand 8174 states and 23017 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 20:14:45,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:45,171 INFO L93 Difference]: Finished difference Result 14610 states and 41729 transitions. [2022-04-18 20:14:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:45,173 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 20:14:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:45,227 INFO L225 Difference]: With dead ends: 14610 [2022-04-18 20:14:45,228 INFO L226 Difference]: Without dead ends: 14610 [2022-04-18 20:14:45,228 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 20:14:45,229 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 75 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:45,229 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 104 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:45,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14610 states. [2022-04-18 20:14:45,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14610 to 8365. [2022-04-18 20:14:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8365 states, 8285 states have (on average 2.8744719372359686) internal successors, (23815), 8364 states have internal predecessors, (23815), 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 20:14:45,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8365 states to 8365 states and 23815 transitions. [2022-04-18 20:14:45,506 INFO L78 Accepts]: Start accepts. Automaton has 8365 states and 23815 transitions. Word has length 8 [2022-04-18 20:14:45,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:45,507 INFO L478 AbstractCegarLoop]: Abstraction has 8365 states and 23815 transitions. [2022-04-18 20:14:45,508 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 20:14:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 8365 states and 23815 transitions. [2022-04-18 20:14:45,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 20:14:45,509 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:45,509 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:45,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:14:45,510 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:45,510 INFO L85 PathProgramCache]: Analyzing trace with hash -877451649, now seen corresponding path program 1 times [2022-04-18 20:14:45,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:45,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077489658] [2022-04-18 20:14:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:45,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:45,550 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 20:14:45,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:45,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077489658] [2022-04-18 20:14:45,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077489658] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:45,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:45,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:45,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145366158] [2022-04-18 20:14:45,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:45,551 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:45,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:45,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:45,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:45,552 INFO L87 Difference]: Start difference. First operand 8365 states and 23815 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 20:14:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:45,724 INFO L93 Difference]: Finished difference Result 11315 states and 32257 transitions. [2022-04-18 20:14:45,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:45,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 20:14:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:45,763 INFO L225 Difference]: With dead ends: 11315 [2022-04-18 20:14:45,764 INFO L226 Difference]: Without dead ends: 11297 [2022-04-18 20:14:45,764 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 20:14:45,765 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 52 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:45,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 86 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:45,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11297 states. [2022-04-18 20:14:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11297 to 10854. [2022-04-18 20:14:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10854 states, 10774 states have (on average 2.922312975682198) internal successors, (31485), 10853 states have internal predecessors, (31485), 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 20:14:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10854 states to 10854 states and 31485 transitions. [2022-04-18 20:14:46,065 INFO L78 Accepts]: Start accepts. Automaton has 10854 states and 31485 transitions. Word has length 10 [2022-04-18 20:14:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:46,065 INFO L478 AbstractCegarLoop]: Abstraction has 10854 states and 31485 transitions. [2022-04-18 20:14:46,066 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 20:14:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 10854 states and 31485 transitions. [2022-04-18 20:14:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 20:14:46,067 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:46,067 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:46,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:14:46,067 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:46,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:46,068 INFO L85 PathProgramCache]: Analyzing trace with hash -733586542, now seen corresponding path program 1 times [2022-04-18 20:14:46,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:46,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505927616] [2022-04-18 20:14:46,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:46,151 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 20:14:46,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:46,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505927616] [2022-04-18 20:14:46,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505927616] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:46,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:46,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:14:46,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282271869] [2022-04-18 20:14:46,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:46,152 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:46,152 INFO L87 Difference]: Start difference. First operand 10854 states and 31485 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 20:14:46,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:46,593 INFO L93 Difference]: Finished difference Result 17566 states and 50440 transitions. [2022-04-18 20:14:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:46,594 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 20:14:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:46,647 INFO L225 Difference]: With dead ends: 17566 [2022-04-18 20:14:46,647 INFO L226 Difference]: Without dead ends: 17566 [2022-04-18 20:14:46,647 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 20:14:46,648 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 234 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:46,648 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 265 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:14:46,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17566 states. [2022-04-18 20:14:46,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17566 to 15982. [2022-04-18 20:14:47,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15982 states, 15902 states have (on average 2.965413155577915) internal successors, (47156), 15981 states have internal predecessors, (47156), 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 20:14:47,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15982 states to 15982 states and 47156 transitions. [2022-04-18 20:14:47,073 INFO L78 Accepts]: Start accepts. Automaton has 15982 states and 47156 transitions. Word has length 10 [2022-04-18 20:14:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:47,073 INFO L478 AbstractCegarLoop]: Abstraction has 15982 states and 47156 transitions. [2022-04-18 20:14:47,073 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 20:14:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 15982 states and 47156 transitions. [2022-04-18 20:14:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:14:47,076 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:47,076 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:47,076 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:14:47,076 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1903696575, now seen corresponding path program 1 times [2022-04-18 20:14:47,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:47,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138192852] [2022-04-18 20:14:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:47,152 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 20:14:47,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:47,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138192852] [2022-04-18 20:14:47,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138192852] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:47,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:47,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:14:47,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676074192] [2022-04-18 20:14:47,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:47,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:47,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:47,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:47,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:47,154 INFO L87 Difference]: Start difference. First operand 15982 states and 47156 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 20:14:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:47,560 INFO L93 Difference]: Finished difference Result 17714 states and 52322 transitions. [2022-04-18 20:14:47,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:47,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-04-18 20:14:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:47,607 INFO L225 Difference]: With dead ends: 17714 [2022-04-18 20:14:47,607 INFO L226 Difference]: Without dead ends: 17714 [2022-04-18 20:14:47,607 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 20:14:47,608 INFO L913 BasicCegarLoop]: 75 mSDtfsCounter, 126 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:47,608 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 180 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:14:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17714 states. [2022-04-18 20:14:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17714 to 17234. [2022-04-18 20:14:48,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17234 states, 17154 states have (on average 2.9658388714002566) internal successors, (50876), 17233 states have internal predecessors, (50876), 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 20:14:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17234 states to 17234 states and 50876 transitions. [2022-04-18 20:14:48,184 INFO L78 Accepts]: Start accepts. Automaton has 17234 states and 50876 transitions. Word has length 16 [2022-04-18 20:14:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:48,184 INFO L478 AbstractCegarLoop]: Abstraction has 17234 states and 50876 transitions. [2022-04-18 20:14:48,184 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 20:14:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 17234 states and 50876 transitions. [2022-04-18 20:14:48,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-18 20:14:48,186 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:48,186 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:48,186 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:14:48,187 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:48,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:48,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1466534996, now seen corresponding path program 1 times [2022-04-18 20:14:48,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:48,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125339287] [2022-04-18 20:14:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:48,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:48,213 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 20:14:48,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:48,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125339287] [2022-04-18 20:14:48,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125339287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:48,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:48,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:14:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973656174] [2022-04-18 20:14:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:48,215 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:48,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:48,216 INFO L87 Difference]: Start difference. First operand 17234 states and 50876 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20:14:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:48,363 INFO L93 Difference]: Finished difference Result 23176 states and 68817 transitions. [2022-04-18 20:14:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:48,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-04-18 20:14:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:48,421 INFO L225 Difference]: With dead ends: 23176 [2022-04-18 20:14:48,422 INFO L226 Difference]: Without dead ends: 23176 [2022-04-18 20:14:48,422 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:14:48,423 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 67 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:48,423 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 93 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23176 states. [2022-04-18 20:14:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23176 to 17283. [2022-04-18 20:14:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17283 states, 17203 states have (on average 2.9662849502993662) internal successors, (51029), 17282 states have internal predecessors, (51029), 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 20:14:48,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17283 states to 17283 states and 51029 transitions. [2022-04-18 20:14:48,864 INFO L78 Accepts]: Start accepts. Automaton has 17283 states and 51029 transitions. Word has length 17 [2022-04-18 20:14:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:48,864 INFO L478 AbstractCegarLoop]: Abstraction has 17283 states and 51029 transitions. [2022-04-18 20:14:48,864 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20:14:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 17283 states and 51029 transitions. [2022-04-18 20:14:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 20:14:48,866 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:48,866 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:48,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:14:48,867 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:48,867 INFO L85 PathProgramCache]: Analyzing trace with hash -313024329, now seen corresponding path program 1 times [2022-04-18 20:14:48,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:48,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019567476] [2022-04-18 20:14:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:48,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:48,978 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 20:14:48,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:48,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019567476] [2022-04-18 20:14:48,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019567476] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:48,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:48,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:14:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878157859] [2022-04-18 20:14:48,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:48,979 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:14:48,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:48,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:14:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:14:48,980 INFO L87 Difference]: Start difference. First operand 17283 states and 51029 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20:14:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:49,553 INFO L93 Difference]: Finished difference Result 19000 states and 56220 transitions. [2022-04-18 20:14:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:14:49,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-04-18 20:14:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:49,603 INFO L225 Difference]: With dead ends: 19000 [2022-04-18 20:14:49,603 INFO L226 Difference]: Without dead ends: 19000 [2022-04-18 20:14:49,603 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:14:49,604 INFO L913 BasicCegarLoop]: 70 mSDtfsCounter, 314 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:49,605 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 188 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:14:49,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19000 states. [2022-04-18 20:14:49,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19000 to 17563. [2022-04-18 20:14:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17563 states, 17491 states have (on average 2.971413869990281) internal successors, (51973), 17562 states have internal predecessors, (51973), 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 20:14:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17563 states to 17563 states and 51973 transitions. [2022-04-18 20:14:50,064 INFO L78 Accepts]: Start accepts. Automaton has 17563 states and 51973 transitions. Word has length 20 [2022-04-18 20:14:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:50,064 INFO L478 AbstractCegarLoop]: Abstraction has 17563 states and 51973 transitions. [2022-04-18 20:14:50,065 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20:14:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 17563 states and 51973 transitions. [2022-04-18 20:14:50,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 20:14:50,066 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:50,067 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:50,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 20:14:50,067 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:50,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:50,067 INFO L85 PathProgramCache]: Analyzing trace with hash 68418723, now seen corresponding path program 1 times [2022-04-18 20:14:50,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:50,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719052620] [2022-04-18 20:14:50,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:50,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:50,148 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 20:14:50,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:50,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719052620] [2022-04-18 20:14:50,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719052620] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:50,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:50,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:14:50,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382607497] [2022-04-18 20:14:50,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:50,150 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:14:50,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:14:50,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:14:50,150 INFO L87 Difference]: Start difference. First operand 17563 states and 51973 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20:14:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:50,714 INFO L93 Difference]: Finished difference Result 16211 states and 47827 transitions. [2022-04-18 20:14:50,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 20:14:50,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-04-18 20:14:50,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:50,754 INFO L225 Difference]: With dead ends: 16211 [2022-04-18 20:14:50,755 INFO L226 Difference]: Without dead ends: 16211 [2022-04-18 20:14:50,755 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-04-18 20:14:50,757 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 379 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:50,757 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 313 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:14:50,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16211 states. [2022-04-18 20:14:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16211 to 10488. [2022-04-18 20:14:51,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10488 states, 10449 states have (on average 2.900564647334673) internal successors, (30308), 10487 states have internal predecessors, (30308), 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 20:14:51,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10488 states to 10488 states and 30308 transitions. [2022-04-18 20:14:51,233 INFO L78 Accepts]: Start accepts. Automaton has 10488 states and 30308 transitions. Word has length 20 [2022-04-18 20:14:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:51,238 INFO L478 AbstractCegarLoop]: Abstraction has 10488 states and 30308 transitions. [2022-04-18 20:14:51,238 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20:14:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 10488 states and 30308 transitions. [2022-04-18 20:14:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:14:51,242 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:51,242 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:51,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 20:14:51,242 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:51,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1740715522, now seen corresponding path program 1 times [2022-04-18 20:14:51,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:51,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331911258] [2022-04-18 20:14:51,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:51,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:51,331 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 20:14:51,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:51,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331911258] [2022-04-18 20:14:51,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331911258] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:51,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:51,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:51,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049060602] [2022-04-18 20:14:51,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:51,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:51,332 INFO L87 Difference]: Start difference. First operand 10488 states and 30308 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 20:14:51,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:51,431 INFO L93 Difference]: Finished difference Result 10633 states and 30724 transitions. [2022-04-18 20:14:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-04-18 20:14:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:51,451 INFO L225 Difference]: With dead ends: 10633 [2022-04-18 20:14:51,452 INFO L226 Difference]: Without dead ends: 10633 [2022-04-18 20:14:51,452 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 20:14:51,452 INFO L913 BasicCegarLoop]: 54 mSDtfsCounter, 37 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:51,453 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 80 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:51,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2022-04-18 20:14:51,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 10633. [2022-04-18 20:14:51,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10633 states, 10598 states have (on average 2.89903755425552) internal successors, (30724), 10632 states have internal predecessors, (30724), 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 20:14:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10633 states to 10633 states and 30724 transitions. [2022-04-18 20:14:51,613 INFO L78 Accepts]: Start accepts. Automaton has 10633 states and 30724 transitions. Word has length 22 [2022-04-18 20:14:51,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:51,613 INFO L478 AbstractCegarLoop]: Abstraction has 10633 states and 30724 transitions. [2022-04-18 20:14:51,613 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 20:14:51,614 INFO L276 IsEmpty]: Start isEmpty. Operand 10633 states and 30724 transitions. [2022-04-18 20:14:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-18 20:14:51,616 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:51,616 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:51,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 20:14:51,617 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 229498118, now seen corresponding path program 1 times [2022-04-18 20:14:51,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:51,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503500503] [2022-04-18 20:14:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:51,641 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 20:14:51,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:51,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503500503] [2022-04-18 20:14:51,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503500503] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:51,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:51,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:51,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113383756] [2022-04-18 20:14:51,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:51,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:51,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:51,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:51,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:51,643 INFO L87 Difference]: Start difference. First operand 10633 states and 30724 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 20:14:51,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:51,858 INFO L93 Difference]: Finished difference Result 10785 states and 31125 transitions. [2022-04-18 20:14:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:51,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2022-04-18 20:14:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:51,893 INFO L225 Difference]: With dead ends: 10785 [2022-04-18 20:14:51,901 INFO L226 Difference]: Without dead ends: 10785 [2022-04-18 20:14:51,901 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 20:14:51,901 INFO L913 BasicCegarLoop]: 61 mSDtfsCounter, 40 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:51,908 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 100 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:51,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10785 states. [2022-04-18 20:14:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10785 to 10785. [2022-04-18 20:14:52,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10785 states, 10754 states have (on average 2.894271898828343) internal successors, (31125), 10784 states have internal predecessors, (31125), 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 20:14:52,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10785 states to 10785 states and 31125 transitions. [2022-04-18 20:14:52,105 INFO L78 Accepts]: Start accepts. Automaton has 10785 states and 31125 transitions. Word has length 25 [2022-04-18 20:14:52,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:52,106 INFO L478 AbstractCegarLoop]: Abstraction has 10785 states and 31125 transitions. [2022-04-18 20:14:52,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 20:14:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 10785 states and 31125 transitions. [2022-04-18 20:14:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-18 20:14:52,109 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:52,109 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:52,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 20:14:52,109 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:52,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1428680062, now seen corresponding path program 1 times [2022-04-18 20:14:52,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:52,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516091300] [2022-04-18 20:14:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:52,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:52,152 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 20:14:52,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:52,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516091300] [2022-04-18 20:14:52,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516091300] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:52,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:52,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:14:52,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706233794] [2022-04-18 20:14:52,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:52,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:52,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:52,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:52,154 INFO L87 Difference]: Start difference. First operand 10785 states and 31125 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 20:14:52,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:52,220 INFO L93 Difference]: Finished difference Result 1657 states and 4138 transitions. [2022-04-18 20:14:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:52,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2022-04-18 20:14:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:52,224 INFO L225 Difference]: With dead ends: 1657 [2022-04-18 20:14:52,225 INFO L226 Difference]: Without dead ends: 1657 [2022-04-18 20:14:52,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:14:52,226 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 65 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:52,238 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 50 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:52,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-04-18 20:14:52,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1449. [2022-04-18 20:14:52,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1444 states have (on average 2.4695290858725762) internal successors, (3566), 1448 states have internal predecessors, (3566), 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 20:14:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3566 transitions. [2022-04-18 20:14:52,253 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3566 transitions. Word has length 29 [2022-04-18 20:14:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:52,254 INFO L478 AbstractCegarLoop]: Abstraction has 1449 states and 3566 transitions. [2022-04-18 20:14:52,254 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 20:14:52,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3566 transitions. [2022-04-18 20:14:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-04-18 20:14:52,257 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:52,257 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:52,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 20:14:52,258 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:52,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:52,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1974359186, now seen corresponding path program 1 times [2022-04-18 20:14:52,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:52,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245896288] [2022-04-18 20:14:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:52,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:52,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:52,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245896288] [2022-04-18 20:14:52,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245896288] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:14:52,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338522225] [2022-04-18 20:14:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:52,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:14:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:52,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:14:52,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 20:14:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:52,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 20:14:52,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:14:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:52,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:14:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:52,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338522225] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 20:14:52,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [374492319] [2022-04-18 20:14:52,660 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 20:14:52,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 20:14:52,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-04-18 20:14:52,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070247370] [2022-04-18 20:14:52,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 20:14:52,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 20:14:52,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:52,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 20:14:52,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:14:52,662 INFO L87 Difference]: Start difference. First operand 1449 states and 3566 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 20:14:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:52,804 INFO L93 Difference]: Finished difference Result 3786 states and 9084 transitions. [2022-04-18 20:14:52,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:52,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 40 [2022-04-18 20:14:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:52,809 INFO L225 Difference]: With dead ends: 3786 [2022-04-18 20:14:52,809 INFO L226 Difference]: Without dead ends: 3786 [2022-04-18 20:14:52,809 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:14:52,809 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 357 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:52,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 156 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:52,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2022-04-18 20:14:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 3758. [2022-04-18 20:14:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3751 states have (on average 2.4153559050919755) internal successors, (9060), 3757 states have internal predecessors, (9060), 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 20:14:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 9060 transitions. [2022-04-18 20:14:52,928 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 9060 transitions. Word has length 40 [2022-04-18 20:14:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:52,928 INFO L478 AbstractCegarLoop]: Abstraction has 3758 states and 9060 transitions. [2022-04-18 20:14:52,928 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 20:14:52,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 9060 transitions. [2022-04-18 20:14:52,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-18 20:14:52,930 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:52,931 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:52,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-18 20:14:53,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-04-18 20:14:53,145 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:53,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash -312242266, now seen corresponding path program 1 times [2022-04-18 20:14:53,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:53,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006863045] [2022-04-18 20:14:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:53,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:53,190 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 20:14:53,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:53,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006863045] [2022-04-18 20:14:53,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006863045] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:53,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:53,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:53,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310483837] [2022-04-18 20:14:53,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:53,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:53,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:53,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:53,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:53,193 INFO L87 Difference]: Start difference. First operand 3758 states and 9060 transitions. Second operand has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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 20:14:53,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:53,264 INFO L93 Difference]: Finished difference Result 3730 states and 8986 transitions. [2022-04-18 20:14:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:53,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2022-04-18 20:14:53,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:53,270 INFO L225 Difference]: With dead ends: 3730 [2022-04-18 20:14:53,270 INFO L226 Difference]: Without dead ends: 3730 [2022-04-18 20:14:53,271 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 20:14:53,272 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:53,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 63 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:53,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2022-04-18 20:14:53,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3730. [2022-04-18 20:14:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3726 states have (on average 2.411701556629093) internal successors, (8986), 3729 states have internal predecessors, (8986), 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 20:14:53,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 8986 transitions. [2022-04-18 20:14:53,319 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 8986 transitions. Word has length 41 [2022-04-18 20:14:53,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:53,319 INFO L478 AbstractCegarLoop]: Abstraction has 3730 states and 8986 transitions. [2022-04-18 20:14:53,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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 20:14:53,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 8986 transitions. [2022-04-18 20:14:53,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-18 20:14:53,323 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:53,323 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:53,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 20:14:53,325 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:53,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:53,325 INFO L85 PathProgramCache]: Analyzing trace with hash -44862964, now seen corresponding path program 1 times [2022-04-18 20:14:53,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:53,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136665967] [2022-04-18 20:14:53,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:53,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:53,436 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 20:14:53,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:53,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136665967] [2022-04-18 20:14:53,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136665967] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:53,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:53,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:14:53,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492354098] [2022-04-18 20:14:53,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:53,438 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:53,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:53,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:53,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:53,439 INFO L87 Difference]: Start difference. First operand 3730 states and 8986 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 20:14:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:53,715 INFO L93 Difference]: Finished difference Result 3702 states and 8912 transitions. [2022-04-18 20:14:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2022-04-18 20:14:53,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:53,721 INFO L225 Difference]: With dead ends: 3702 [2022-04-18 20:14:53,721 INFO L226 Difference]: Without dead ends: 3654 [2022-04-18 20:14:53,721 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 20:14:53,722 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:53,722 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 53 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:14:53,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2022-04-18 20:14:53,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3654. [2022-04-18 20:14:53,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3653 states have (on average 2.412811387900356) internal successors, (8814), 3653 states have internal predecessors, (8814), 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 20:14:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 8814 transitions. [2022-04-18 20:14:53,770 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 8814 transitions. Word has length 50 [2022-04-18 20:14:53,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:53,770 INFO L478 AbstractCegarLoop]: Abstraction has 3654 states and 8814 transitions. [2022-04-18 20:14:53,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 20:14:53,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 8814 transitions. [2022-04-18 20:14:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-18 20:14:53,777 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:53,777 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:53,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 20:14:53,777 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:53,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:53,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1383439037, now seen corresponding path program 1 times [2022-04-18 20:14:53,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:53,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519959406] [2022-04-18 20:14:53,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:53,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-04-18 20:14:53,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:53,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519959406] [2022-04-18 20:14:53,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519959406] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:14:53,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297552893] [2022-04-18 20:14:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:53,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:14:53,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:53,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:14:53,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 20:14:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:53,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-18 20:14:53,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:14:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-04-18 20:14:54,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:14:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-04-18 20:14:54,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297552893] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 20:14:54,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [510596051] [2022-04-18 20:14:54,195 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 20:14:54,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 20:14:54,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-04-18 20:14:54,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284476044] [2022-04-18 20:14:54,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 20:14:54,196 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:14:54,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:54,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:14:54,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:14:54,197 INFO L87 Difference]: Start difference. First operand 3654 states and 8814 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 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 20:14:54,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:54,376 INFO L93 Difference]: Finished difference Result 6712 states and 15978 transitions. [2022-04-18 20:14:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:14:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 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 64 [2022-04-18 20:14:54,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:54,386 INFO L225 Difference]: With dead ends: 6712 [2022-04-18 20:14:54,386 INFO L226 Difference]: Without dead ends: 6712 [2022-04-18 20:14:54,386 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:14:54,387 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 334 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:54,387 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 162 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:54,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2022-04-18 20:14:54,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 5705. [2022-04-18 20:14:54,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5705 states, 5704 states have (on average 2.4062061711079945) internal successors, (13725), 5704 states have internal predecessors, (13725), 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 20:14:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5705 states to 5705 states and 13725 transitions. [2022-04-18 20:14:54,476 INFO L78 Accepts]: Start accepts. Automaton has 5705 states and 13725 transitions. Word has length 64 [2022-04-18 20:14:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:54,476 INFO L478 AbstractCegarLoop]: Abstraction has 5705 states and 13725 transitions. [2022-04-18 20:14:54,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 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 20:14:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5705 states and 13725 transitions. [2022-04-18 20:14:54,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-18 20:14:54,518 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:54,519 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:54,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 20:14:54,736 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-04-18 20:14:54,736 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:54,736 INFO L85 PathProgramCache]: Analyzing trace with hash -743902228, now seen corresponding path program 1 times [2022-04-18 20:14:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:54,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390612261] [2022-04-18 20:14:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:54,772 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-04-18 20:14:54,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:54,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390612261] [2022-04-18 20:14:54,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390612261] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:54,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:54,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:14:54,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033102675] [2022-04-18 20:14:54,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:54,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:54,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:54,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:54,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:54,774 INFO L87 Difference]: Start difference. First operand 5705 states and 13725 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 20:14:54,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:54,827 INFO L93 Difference]: Finished difference Result 5756 states and 13797 transitions. [2022-04-18 20:14:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:54,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 87 [2022-04-18 20:14:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:54,834 INFO L225 Difference]: With dead ends: 5756 [2022-04-18 20:14:54,834 INFO L226 Difference]: Without dead ends: 5705 [2022-04-18 20:14:54,834 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:14:54,835 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:54,835 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:54,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5705 states. [2022-04-18 20:14:54,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5705 to 3500. [2022-04-18 20:14:54,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 3499 states have (on average 2.3975421549014) internal successors, (8389), 3499 states have internal predecessors, (8389), 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 20:14:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 8389 transitions. [2022-04-18 20:14:54,877 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 8389 transitions. Word has length 87 [2022-04-18 20:14:54,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:54,878 INFO L478 AbstractCegarLoop]: Abstraction has 3500 states and 8389 transitions. [2022-04-18 20:14:54,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 20:14:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 8389 transitions. [2022-04-18 20:14:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-18 20:14:54,883 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:54,883 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:54,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 20:14:54,883 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-04-18 20:14:54,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1061685402, now seen corresponding path program 2 times [2022-04-18 20:14:54,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:54,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687261974] [2022-04-18 20:14:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:54,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:54,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:54,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687261974] [2022-04-18 20:14:54,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687261974] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:14:54,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404466576] [2022-04-18 20:14:54,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 20:14:54,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:14:54,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:54,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:14:54,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-18 20:14:55,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-04-18 20:14:55,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 20:14:55,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 20:14:55,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:14:55,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 20:14:55,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:55,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 20:14:55,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:55,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:55,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:55,314 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 20:14:55,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 20:14:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-04-18 20:14:55,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 20:14:55,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404466576] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:55,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 20:14:55,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-04-18 20:14:55,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999909385] [2022-04-18 20:14:55,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:55,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:55,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:55,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:55,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-18 20:14:55,331 INFO L87 Difference]: Start difference. First operand 3500 states and 8389 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 20:14:55,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:55,467 INFO L93 Difference]: Finished difference Result 3467 states and 8319 transitions. [2022-04-18 20:14:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:55,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 109 [2022-04-18 20:14:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:55,468 INFO L225 Difference]: With dead ends: 3467 [2022-04-18 20:14:55,468 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 20:14:55,469 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-18 20:14:55,469 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 97 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:55,471 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 81 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 20:14:55,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 20:14:55,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 20:14:55,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 20:14:55,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2022-04-18 20:14:55,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:55,472 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 20:14:55,472 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 20:14:55,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 20:14:55,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 20:14:55,474 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2022-04-18 20:14:55,474 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2022-04-18 20:14:55,474 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 28 remaining) [2022-04-18 20:14:55,474 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 28 remaining) [2022-04-18 20:14:55,475 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2022-04-18 20:14:55,475 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2022-04-18 20:14:55,475 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2022-04-18 20:14:55,476 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2022-04-18 20:14:55,476 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2022-04-18 20:14:55,476 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2022-04-18 20:14:55,477 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2022-04-18 20:14:55,478 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2022-04-18 20:14:55,478 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2022-04-18 20:14:55,478 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2022-04-18 20:14:55,478 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2022-04-18 20:14:55,479 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2022-04-18 20:14:55,479 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2022-04-18 20:14:55,479 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2022-04-18 20:14:55,479 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2022-04-18 20:14:55,479 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2022-04-18 20:14:55,480 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2022-04-18 20:14:55,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-18 20:14:55,696 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-04-18 20:14:55,698 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:55,700 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 20:14:55,701 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 20:14:55,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:14:55 BasicIcfg [2022-04-18 20:14:55,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 20:14:55,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 20:14:55,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 20:14:55,702 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 20:14:55,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:39" (3/4) ... [2022-04-18 20:14:55,704 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 20:14:55,709 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-04-18 20:14:55,709 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-04-18 20:14:55,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 20:14:55,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 20:14:55,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 20:14:55,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 20:14:55,732 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 20:14:55,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 20:14:55,733 INFO L158 Benchmark]: Toolchain (without parser) took 16880.36ms. Allocated memory was 98.6MB in the beginning and 5.9GB in the end (delta: 5.8GB). Free memory was 58.5MB in the beginning and 5.1GB in the end (delta: -5.1GB). Peak memory consumption was 699.2MB. Max. memory is 16.1GB. [2022-04-18 20:14:55,733 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 76.6MB in the beginning and 76.6MB in the end (delta: 53.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:14:55,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.12ms. Allocated memory is still 98.6MB. Free memory was 58.3MB in the beginning and 53.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-04-18 20:14:55,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.40ms. Allocated memory is still 98.6MB. Free memory was 53.2MB in the beginning and 50.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:55,733 INFO L158 Benchmark]: Boogie Preprocessor took 55.10ms. Allocated memory is still 98.6MB. Free memory was 50.2MB in the beginning and 48.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:55,733 INFO L158 Benchmark]: RCFGBuilder took 474.62ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 48.1MB in the beginning and 98.0MB in the end (delta: -49.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-04-18 20:14:55,734 INFO L158 Benchmark]: TraceAbstraction took 15776.50ms. Allocated memory was 132.1MB in the beginning and 5.9GB in the end (delta: 5.8GB). Free memory was 97.2MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 701.7MB. Max. memory is 16.1GB. [2022-04-18 20:14:55,734 INFO L158 Benchmark]: Witness Printer took 29.93ms. Allocated memory is still 5.9GB. Free memory was 5.2GB in the beginning and 5.1GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:55,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 76.6MB in the beginning and 76.6MB in the end (delta: 53.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.12ms. Allocated memory is still 98.6MB. Free memory was 58.3MB in the beginning and 53.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.40ms. Allocated memory is still 98.6MB. Free memory was 53.2MB in the beginning and 50.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.10ms. Allocated memory is still 98.6MB. Free memory was 50.2MB in the beginning and 48.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.62ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 48.1MB in the beginning and 98.0MB in the end (delta: -49.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15776.50ms. Allocated memory was 132.1MB in the beginning and 5.9GB in the end (delta: 5.8GB). Free memory was 97.2MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 701.7MB. Max. memory is 16.1GB. * Witness Printer took 29.93ms. Allocated memory is still 5.9GB. Free memory was 5.2GB in the beginning and 5.1GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 238 PlacesBefore, 89 PlacesAfterwards, 241 TransitionsBefore, 87 TransitionsAfterwards, 20432 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 107 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 5 ChoiceCompositions, 175 TotalNumberOfCompositions, 65011 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28351, positive: 27452, positive conditional: 0, positive unconditional: 27452, negative: 899, negative conditional: 0, negative unconditional: 899, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14517, positive: 14299, positive conditional: 0, positive unconditional: 14299, negative: 218, negative conditional: 0, negative unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14517, positive: 14197, positive conditional: 0, positive unconditional: 14197, negative: 320, negative conditional: 0, negative unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 320, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 218, negative conditional: 0, negative unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 142, positive conditional: 0, positive unconditional: 142, negative: 233, negative conditional: 0, negative unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28351, positive: 13153, positive conditional: 0, positive unconditional: 13153, negative: 681, negative conditional: 0, negative unconditional: 681, unknown: 14517, unknown conditional: 0, unknown unconditional: 14517] , Statistics on independence cache: Total cache size (in pairs): 2109, Positive cache size: 1992, Positive conditional cache size: 0, Positive unconditional cache size: 1992, Negative cache size: 117, Negative conditional cache size: 0, Negative unconditional cache size: 117 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1024]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1025]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 961]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 998]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 968]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1009]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 983]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 398 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 15.6s, OverallIterations: 17, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2288 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2288 mSDsluCounter, 2111 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2697 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4155 IncrementalHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 987 mSDtfsCounter, 4155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 395 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17563occurred in iteration=7, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 17 MinimizatonAttempts, 27983 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 787 NumberOfCodeBlocks, 694 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 869 ConstructedInterpolants, 0 QuantifiedInterpolants, 2438 SizeOfPredicates, 2 NumberOfNonLiveVariables, 897 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 338/495 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 20:14:55,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE