./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.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 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:06:13,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:06:13,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:06:13,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:06:13,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:06:13,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:06:13,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:06:13,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:06:13,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:06:13,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:06:13,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:06:13,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:06:13,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:06:13,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:06:13,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:06:13,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:06:13,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:06:13,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:06:13,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:06:13,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:06:13,348 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:06:13,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:06:13,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:06:13,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:06:13,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:06:13,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:06:13,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:06:13,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:06:13,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:06:13,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:06:13,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:06:13,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:06:13,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:06:13,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:06:13,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:06:13,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:06:13,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:06:13,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:06:13,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:06:13,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:06:13,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:06:13,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:06:13,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:06:13,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:06:13,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:06:13,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:06:13,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:06:13,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:06:13,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:06:13,392 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:06:13,392 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:06:13,392 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:06:13,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:06:13,393 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:06:13,393 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:06:13,393 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:06:13,393 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:06:13,393 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:06:13,393 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:06:13,394 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:06:13,394 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:06:13,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:06:13,394 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:06:13,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:06:13,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:06:13,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:06:13,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:06:13,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:06:13,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:06:13,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:06:13,396 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:06:13,396 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:06:13,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:06:13,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:06:13,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:06:13,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:06:13,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:06:13,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:06:13,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:06:13,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:06:13,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:06:13,398 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:06:13,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:06:13,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:06:13,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:06:13,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:06:13,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2022-04-18 19:06:13,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:06:13,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:06:13,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:06:13,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:06:13,578 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:06:13,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i [2022-04-18 19:06:13,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/02e921bd8/4ee3d9543a0148449c559e1e487a7a87/FLAG14ba19a43 [2022-04-18 19:06:14,025 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:06:14,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i [2022-04-18 19:06:14,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/02e921bd8/4ee3d9543a0148449c559e1e487a7a87/FLAG14ba19a43 [2022-04-18 19:06:14,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/02e921bd8/4ee3d9543a0148449c559e1e487a7a87 [2022-04-18 19:06:14,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:06:14,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:06:14,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:06:14,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:06:14,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:06:14,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490dea3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14, skipping insertion in model container [2022-04-18 19:06:14,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:06:14,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:06:14,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-04-18 19:06:14,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:06:14,279 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:06:14,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-04-18 19:06:14,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:06:14,324 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:06:14,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14 WrapperNode [2022-04-18 19:06:14,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:06:14,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:06:14,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:06:14,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:06:14,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,358 INFO L137 Inliner]: procedures = 170, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-04-18 19:06:14,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:06:14,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:06:14,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:06:14,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:06:14,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:06:14,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:06:14,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:06:14,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:06:14,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (1/1) ... [2022-04-18 19:06:14,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:06:14,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:06:14,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:06:14,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:06:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:06:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:06:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:06:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:06:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:06:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:06:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:06:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:06:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:06:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:06:14,438 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 19:06:14,511 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:06:14,512 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:06:14,747 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:06:14,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:06:14,844 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:06:14,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:06:14 BoogieIcfgContainer [2022-04-18 19:06:14,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:06:14,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:06:14,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:06:14,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:06:14,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:06:14" (1/3) ... [2022-04-18 19:06:14,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1490fc4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:06:14, skipping insertion in model container [2022-04-18 19:06:14,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:14" (2/3) ... [2022-04-18 19:06:14,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1490fc4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:06:14, skipping insertion in model container [2022-04-18 19:06:14,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:06:14" (3/3) ... [2022-04-18 19:06:14,852 INFO L111 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2022-04-18 19:06:14,856 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:06:14,856 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:06:14,856 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-04-18 19:06:14,856 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:06:14,921 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:06:14,964 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:06:14,970 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:06:14,971 INFO L341 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-04-18 19:06:14,982 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:06:14,992 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 129 transitions, 263 flow [2022-04-18 19:06:14,994 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 129 transitions, 263 flow [2022-04-18 19:06:14,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-04-18 19:06:15,041 INFO L129 PetriNetUnfolder]: 12/140 cut-off events. [2022-04-18 19:06:15,041 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:06:15,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 203 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-04-18 19:06:15,047 INFO L116 LiptonReduction]: Number of co-enabled transitions 2520 [2022-04-18 19:06:51,417 INFO L131 LiptonReduction]: Checked pairs total: 3003 [2022-04-18 19:06:51,418 INFO L133 LiptonReduction]: Total number of compositions: 154 [2022-04-18 19:06:51,424 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 26 transitions, 57 flow [2022-04-18 19:06:51,441 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:06:51,447 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:51,447 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:06:51,448 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-04-18 19:06:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash 636115217, now seen corresponding path program 1 times [2022-04-18 19:06:51,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:51,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064109896] [2022-04-18 19:06:51,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:51,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:51,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:51,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:51,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064109896] [2022-04-18 19:06:51,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064109896] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:51,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:51,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:06:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893594840] [2022-04-18 19:06:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:51,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:06:51,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:51,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:06:51,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:06:51,582 INFO L87 Difference]: Start difference. First operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:51,700 INFO L93 Difference]: Finished difference Result 39 states and 74 transitions. [2022-04-18 19:06:51,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:06:51,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-04-18 19:06:51,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:51,707 INFO L225 Difference]: With dead ends: 39 [2022-04-18 19:06:51,707 INFO L226 Difference]: Without dead ends: 39 [2022-04-18 19:06:51,708 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:06:51,710 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:51,711 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:06:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-04-18 19:06:51,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-04-18 19:06:51,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 2.0) internal successors, (74), 38 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:51,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 74 transitions. [2022-04-18 19:06:51,736 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 74 transitions. Word has length 5 [2022-04-18 19:06:51,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:51,736 INFO L478 AbstractCegarLoop]: Abstraction has 39 states and 74 transitions. [2022-04-18 19:06:51,736 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:51,737 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2022-04-18 19:06:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:06:51,738 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:51,738 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:06:51,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:06:51,738 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-04-18 19:06:51,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1755387703, now seen corresponding path program 1 times [2022-04-18 19:06:51,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:51,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923680839] [2022-04-18 19:06:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:06:51,778 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:06:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:06:51,803 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:06:51,803 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:06:51,804 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-04-18 19:06:51,805 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-04-18 19:06:51,806 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-04-18 19:06:51,806 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-04-18 19:06:51,806 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-04-18 19:06:51,806 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-04-18 19:06:51,806 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-04-18 19:06:51,807 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-04-18 19:06:51,807 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-04-18 19:06:51,807 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-04-18 19:06:51,807 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-04-18 19:06:51,807 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-04-18 19:06:51,807 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-04-18 19:06:51,808 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-04-18 19:06:51,808 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-04-18 19:06:51,808 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-04-18 19:06:51,808 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-04-18 19:06:51,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:06:51,810 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:06:51,811 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:06:51,811 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:06:51,849 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:06:51,850 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:06:51,851 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:06:51,851 INFO L341 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-04-18 19:06:51,852 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:06:51,852 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 220 transitions, 452 flow [2022-04-18 19:06:51,853 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 220 transitions, 452 flow [2022-04-18 19:06:51,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 220 transitions, 452 flow [2022-04-18 19:06:51,880 INFO L129 PetriNetUnfolder]: 23/244 cut-off events. [2022-04-18 19:06:51,885 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:06:51,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 244 events. 23/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 658 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 193. Up to 6 conditions per place. [2022-04-18 19:06:51,907 INFO L116 LiptonReduction]: Number of co-enabled transitions 21420 [2022-04-18 19:08:27,211 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 101 [2022-04-18 19:08:27,211 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-04-18 19:08:27,215 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1154) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:197) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.containsLBool(SemanticIndependenceRelation.java:145) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:123) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.lambda$2(UnionIndependenceRelation.java:70) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.contains(UnionIndependenceRelation.java:70) at de.uni_freiburg.informatik.ultimate.automata.partialorder.CachedIndependenceRelation.contains(CachedIndependenceRelation.java:120) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$1(LiptonReduction.java:465) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1624) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isRightMover(LiptonReduction.java:465) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:408) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:278) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.computeInitialAbstraction(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 60 more [2022-04-18 19:08:27,218 INFO L158 Benchmark]: Toolchain (without parser) took 133171.31ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 56.9MB in the beginning and 38.7MB in the end (delta: 18.2MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2022-04-18 19:08:27,218 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:08:27,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.04ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 58.9MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 19:08:27,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.63ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 56.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 19:08:27,219 INFO L158 Benchmark]: Boogie Preprocessor took 20.64ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 19:08:27,219 INFO L158 Benchmark]: RCFGBuilder took 465.97ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 54.0MB in the beginning and 83.1MB in the end (delta: -29.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-04-18 19:08:27,220 INFO L158 Benchmark]: TraceAbstraction took 132369.59ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 38.7MB in the end (delta: 44.5MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-04-18 19:08:27,221 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 92.3MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.04ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 58.9MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.63ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 56.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.64ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.97ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 54.0MB in the beginning and 83.1MB in the end (delta: -29.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 132369.59ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 38.7MB in the end (delta: 44.5MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.4s, 121 PlacesBefore, 24 PlacesAfterwards, 129 TransitionsBefore, 26 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 103 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 6 ChoiceCompositions, 154 TotalNumberOfCompositions, 3003 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2392, positive: 2316, positive conditional: 0, positive unconditional: 2316, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1700, positive: 1674, positive conditional: 0, positive unconditional: 1674, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1700, positive: 1661, positive conditional: 0, positive unconditional: 1661, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10759, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 170, negative conditional: 0, negative unconditional: 170, unknown: 10549, unknown conditional: 0, unknown unconditional: 10549] ], Cache Queries: [ total: 2392, positive: 642, positive conditional: 0, positive unconditional: 642, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 1700, unknown conditional: 0, unknown unconditional: 1700] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - 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 - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.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 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:08:28,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:08:28,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:08:28,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:08:28,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:08:28,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:08:28,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:08:28,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:08:28,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:08:28,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:08:28,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:08:28,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:08:28,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:08:28,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:08:28,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:08:28,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:08:28,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:08:28,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:08:28,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:08:28,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:08:28,650 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:08:28,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:08:28,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:08:28,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:08:28,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:08:28,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:08:28,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:08:28,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:08:28,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:08:28,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:08:28,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:08:28,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:08:28,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:08:28,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:08:28,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:08:28,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:08:28,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:08:28,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:08:28,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:08:28,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:08:28,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:08:28,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:08:28,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2022-04-18 19:08:28,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:08:28,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:08:28,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:08:28,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:08:28,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:08:28,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:08:28,697 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:08:28,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:08:28,697 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:08:28,698 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:08:28,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:08:28,698 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:08:28,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:08:28,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:08:28,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:08:28,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:08:28,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:08:28,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:08:28,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:08:28,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:08:28,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:08:28,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 19:08:28,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:08:28,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:08:28,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:08:28,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:08:28,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:08:28,702 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-04-18 19:08:28,702 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-04-18 19:08:28,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:08:28,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:08:28,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:08:28,703 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2022-04-18 19:08:28,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:08:28,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:08:28,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:08:28,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:08:28,971 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:08:28,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i [2022-04-18 19:08:29,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1a596f242/42c64b1062644c71b1e754e6c49f298d/FLAG183f164c2 [2022-04-18 19:08:29,430 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:08:29,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i [2022-04-18 19:08:29,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1a596f242/42c64b1062644c71b1e754e6c49f298d/FLAG183f164c2 [2022-04-18 19:08:29,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1a596f242/42c64b1062644c71b1e754e6c49f298d [2022-04-18 19:08:29,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:08:29,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:08:29,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:08:29,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:08:29,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:08:29,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:08:29" (1/1) ... [2022-04-18 19:08:29,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55062a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:29, skipping insertion in model container [2022-04-18 19:08:29,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:08:29" (1/1) ... [2022-04-18 19:08:29,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:08:29,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:08:30,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-04-18 19:08:30,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:08:30,104 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:08:30,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-04-18 19:08:30,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:08:30,185 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:08:30,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30 WrapperNode [2022-04-18 19:08:30,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:08:30,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:08:30,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:08:30,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:08:30,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,246 INFO L137 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-04-18 19:08:30,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:08:30,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:08:30,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:08:30,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:08:30,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:08:30,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:08:30,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:08:30,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:08:30,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (1/1) ... [2022-04-18 19:08:30,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:08:30,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:08:30,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:08:30,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:08:30,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-04-18 19:08:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:08:30,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:08:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:08:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:08:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:08:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-04-18 19:08:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-04-18 19:08:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-04-18 19:08:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:08:30,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:08:30,377 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 19:08:30,451 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:08:30,452 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:08:30,735 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:08:30,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:08:30,838 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:08:30,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:08:30 BoogieIcfgContainer [2022-04-18 19:08:30,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:08:30,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:08:30,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:08:30,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:08:30,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:08:29" (1/3) ... [2022-04-18 19:08:30,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59541bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:08:30, skipping insertion in model container [2022-04-18 19:08:30,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:08:30" (2/3) ... [2022-04-18 19:08:30,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59541bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:08:30, skipping insertion in model container [2022-04-18 19:08:30,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:08:30" (3/3) ... [2022-04-18 19:08:30,845 INFO L111 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2022-04-18 19:08:30,849 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:08:30,849 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:08:30,849 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-04-18 19:08:30,849 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:08:30,895 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:08:30,937 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:08:30,942 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:08:30,942 INFO L341 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-04-18 19:08:30,955 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:08:30,967 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 129 transitions, 263 flow [2022-04-18 19:08:30,969 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 129 transitions, 263 flow [2022-04-18 19:08:30,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-04-18 19:08:31,021 INFO L129 PetriNetUnfolder]: 12/140 cut-off events. [2022-04-18 19:08:31,023 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:08:31,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 208 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 102. Up to 4 conditions per place. [2022-04-18 19:08:31,035 INFO L116 LiptonReduction]: Number of co-enabled transitions 2492 [2022-04-18 19:08:47,928 INFO L131 LiptonReduction]: Checked pairs total: 2581 [2022-04-18 19:08:47,928 INFO L133 LiptonReduction]: Total number of compositions: 150 [2022-04-18 19:08:47,933 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 26 transitions, 57 flow [2022-04-18 19:08:47,954 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:47,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:47,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:08:47,960 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:47,961 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:08:47,962 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-04-18 19:08:47,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:47,966 INFO L85 PathProgramCache]: Analyzing trace with hash 637335396, now seen corresponding path program 1 times [2022-04-18 19:08:47,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:08:47,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835005141] [2022-04-18 19:08:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:47,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:08:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:08:47,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:08:47,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-04-18 19:08:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:48,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2022-04-18 19:08:48,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:08:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:48,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:08:48,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:08:48,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835005141] [2022-04-18 19:08:48,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835005141] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:48,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:48,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:08:48,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810067489] [2022-04-18 19:08:48,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:48,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:08:48,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:08:48,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:08:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:08:48,104 INFO L87 Difference]: Start difference. First operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:48,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:48,190 INFO L93 Difference]: Finished difference Result 39 states and 74 transitions. [2022-04-18 19:08:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:08:48,192 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-04-18 19:08:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:48,197 INFO L225 Difference]: With dead ends: 39 [2022-04-18 19:08:48,197 INFO L226 Difference]: Without dead ends: 39 [2022-04-18 19:08:48,197 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:08:48,199 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:48,200 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:08:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-04-18 19:08:48,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-04-18 19:08:48,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 2.0) internal successors, (74), 38 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 74 transitions. [2022-04-18 19:08:48,221 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 74 transitions. Word has length 5 [2022-04-18 19:08:48,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:48,223 INFO L478 AbstractCegarLoop]: Abstraction has 39 states and 74 transitions. [2022-04-18 19:08:48,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:48,224 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2022-04-18 19:08:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:08:48,225 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:48,225 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:08:48,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-04-18 19:08:48,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:08:48,432 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-04-18 19:08:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:48,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1717542253, now seen corresponding path program 1 times [2022-04-18 19:08:48,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:08:48,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288310286] [2022-04-18 19:08:48,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:48,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:08:48,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:08:48,434 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:08:48,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-04-18 19:08:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:08:48,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:08:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:08:48,524 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-04-18 19:08:48,524 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:08:48,525 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-04-18 19:08:48,527 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-04-18 19:08:48,527 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-04-18 19:08:48,527 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-04-18 19:08:48,527 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-04-18 19:08:48,527 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-04-18 19:08:48,528 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-04-18 19:08:48,528 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-04-18 19:08:48,528 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-04-18 19:08:48,528 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-04-18 19:08:48,528 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-04-18 19:08:48,529 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-04-18 19:08:48,529 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-04-18 19:08:48,529 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-04-18 19:08:48,529 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-04-18 19:08:48,529 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-04-18 19:08:48,529 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-04-18 19:08:48,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-04-18 19:08:48,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:08:48,740 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:08:48,741 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:08:48,741 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:08:48,773 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:08:48,774 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:08:48,775 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:08:48,775 INFO L341 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-04-18 19:08:48,777 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:08:48,777 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 219 transitions, 450 flow [2022-04-18 19:08:48,777 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 219 transitions, 450 flow [2022-04-18 19:08:48,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 203 places, 219 transitions, 450 flow [2022-04-18 19:08:48,832 INFO L129 PetriNetUnfolder]: 23/243 cut-off events. [2022-04-18 19:08:48,832 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:08:48,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 243 events. 23/243 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 656 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2022-04-18 19:08:48,843 INFO L116 LiptonReduction]: Number of co-enabled transitions 21004 [2022-04-18 19:09:30,723 WARN L232 SmtUtils]: Spent 12.43s on a formula simplification. DAG size of input: 108 DAG size of output: 93 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:09:43,152 WARN L232 SmtUtils]: Spent 11.57s on a formula simplification. DAG size of input: 113 DAG size of output: 104 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:09:49,395 WARN L232 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:12:31,879 INFO L131 LiptonReduction]: Checked pairs total: 94194 [2022-04-18 19:12:31,879 INFO L133 LiptonReduction]: Total number of compositions: 237 [2022-04-18 19:12:31,880 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 91 transitions, 194 flow [2022-04-18 19:12:32,162 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8169 states, 8000 states have (on average 3.1495) internal successors, (25196), 8168 states have internal predecessors, (25196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 8169 states, 8000 states have (on average 3.1495) internal successors, (25196), 8168 states have internal predecessors, (25196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:32,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:12:32,188 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:32,188 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:12:32,189 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 19:12:32,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:32,189 INFO L85 PathProgramCache]: Analyzing trace with hash 823518783, now seen corresponding path program 1 times [2022-04-18 19:12:32,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:12:32,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929981389] [2022-04-18 19:12:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:32,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:12:32,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:12:32,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:12:32,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-04-18 19:12:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:32,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-04-18 19:12:32,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:12:32,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:32,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:12:32,284 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:12:32,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929981389] [2022-04-18 19:12:32,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929981389] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:32,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:32,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:12:32,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089872191] [2022-04-18 19:12:32,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:32,285 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:12:32,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:12:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:12:32,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:12:32,299 INFO L87 Difference]: Start difference. First operand has 8169 states, 8000 states have (on average 3.1495) internal successors, (25196), 8168 states have internal predecessors, (25196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:32,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:32,665 INFO L93 Difference]: Finished difference Result 5411 states and 15701 transitions. [2022-04-18 19:12:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:12:32,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-04-18 19:12:32,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:32,733 INFO L225 Difference]: With dead ends: 5411 [2022-04-18 19:12:32,741 INFO L226 Difference]: Without dead ends: 5411 [2022-04-18 19:12:32,742 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:12:32,743 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:32,743 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 19:12:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5411 states. [2022-04-18 19:12:32,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5411 to 5411. [2022-04-18 19:12:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5386 states have (on average 2.91515038989974) internal successors, (15701), 5410 states have internal predecessors, (15701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:32,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 15701 transitions. [2022-04-18 19:12:32,936 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 15701 transitions. Word has length 6 [2022-04-18 19:12:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:32,937 INFO L478 AbstractCegarLoop]: Abstraction has 5411 states and 15701 transitions. [2022-04-18 19:12:32,937 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 15701 transitions. [2022-04-18 19:12:32,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:12:32,938 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:32,938 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:32,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-04-18 19:12:33,146 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:12:33,146 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 19:12:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1355458986, now seen corresponding path program 1 times [2022-04-18 19:12:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:12:33,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140231629] [2022-04-18 19:12:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:33,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:12:33,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:12:33,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:12:33,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-04-18 19:12:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:33,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2022-04-18 19:12:33,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:12:33,289 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 15 treesize of output 11 [2022-04-18 19:12:33,400 INFO L356 Elim1Store]: treesize reduction 36, result has 28.0 percent of original size [2022-04-18 19:12:33,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-04-18 19:12:33,627 INFO L356 Elim1Store]: treesize reduction 90, result has 25.0 percent of original size [2022-04-18 19:12:33,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2022-04-18 19:12:33,931 INFO L356 Elim1Store]: treesize reduction 163, result has 21.6 percent of original size [2022-04-18 19:12:33,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 66 [2022-04-18 19:12:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:34,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:12:34,088 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:12:34,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140231629] [2022-04-18 19:12:34,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140231629] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:34,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:34,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:12:34,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501801054] [2022-04-18 19:12:34,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:34,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:12:34,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:12:34,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:12:34,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:12:34,089 INFO L87 Difference]: Start difference. First operand 5411 states and 15701 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 19:12:38,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:38,094 INFO L93 Difference]: Finished difference Result 5867 states and 16996 transitions. [2022-04-18 19:12:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:12:38,095 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 19:12:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:38,120 INFO L225 Difference]: With dead ends: 5867 [2022-04-18 19:12:38,120 INFO L226 Difference]: Without dead ends: 5867 [2022-04-18 19:12:38,121 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:12:38,121 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 92 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:38,121 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 93 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-18 19:12:38,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5867 states. [2022-04-18 19:12:38,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5867 to 5867. [2022-04-18 19:12:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5843 states have (on average 2.908779736436762) internal successors, (16996), 5866 states have internal predecessors, (16996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:38,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 16996 transitions. [2022-04-18 19:12:38,288 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 16996 transitions. Word has length 10 [2022-04-18 19:12:38,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:38,288 INFO L478 AbstractCegarLoop]: Abstraction has 5867 states and 16996 transitions. [2022-04-18 19:12:38,288 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 19:12:38,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 16996 transitions. [2022-04-18 19:12:38,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:12:38,290 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:38,291 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:38,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-04-18 19:12:38,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:12:38,499 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 19:12:38,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash -83232917, now seen corresponding path program 1 times [2022-04-18 19:12:38,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:12:38,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908018916] [2022-04-18 19:12:38,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:38,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:12:38,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:12:38,501 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:12:38,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-04-18 19:12:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:38,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-18 19:12:38,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:12:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:38,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:12:38,761 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:12:38,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908018916] [2022-04-18 19:12:38,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908018916] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:38,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:38,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 19:12:38,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800708524] [2022-04-18 19:12:38,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:38,762 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:12:38,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:12:38,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:12:38,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:12:38,762 INFO L87 Difference]: Start difference. First operand 5867 states and 16996 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:39,504 INFO L93 Difference]: Finished difference Result 7506 states and 21651 transitions. [2022-04-18 19:12:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:12:39,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-04-18 19:12:39,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:39,536 INFO L225 Difference]: With dead ends: 7506 [2022-04-18 19:12:39,537 INFO L226 Difference]: Without dead ends: 7506 [2022-04-18 19:12:39,537 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:12:39,539 INFO L913 BasicCegarLoop]: 67 mSDtfsCounter, 46 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:39,540 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 109 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:12:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7506 states. [2022-04-18 19:12:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7506 to 6036. [2022-04-18 19:12:39,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6036 states, 6012 states have (on average 2.9068529607451765) internal successors, (17476), 6035 states have internal predecessors, (17476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6036 states to 6036 states and 17476 transitions. [2022-04-18 19:12:39,681 INFO L78 Accepts]: Start accepts. Automaton has 6036 states and 17476 transitions. Word has length 11 [2022-04-18 19:12:39,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:39,681 INFO L478 AbstractCegarLoop]: Abstraction has 6036 states and 17476 transitions. [2022-04-18 19:12:39,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6036 states and 17476 transitions. [2022-04-18 19:12:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:12:39,682 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:39,682 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 19:12:39,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-04-18 19:12:39,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:12:39,894 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 19:12:39,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:39,895 INFO L85 PathProgramCache]: Analyzing trace with hash -314451807, now seen corresponding path program 1 times [2022-04-18 19:12:39,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:12:39,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399411595] [2022-04-18 19:12:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:39,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:12:39,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:12:39,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:12:39,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-04-18 19:12:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:12:39,972 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:12:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:12:40,010 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-04-18 19:12:40,010 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:12:40,011 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-04-18 19:12:40,011 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-04-18 19:12:40,011 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-04-18 19:12:40,011 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-04-18 19:12:40,011 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-04-18 19:12:40,011 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-04-18 19:12:40,012 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-04-18 19:12:40,012 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-04-18 19:12:40,012 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-04-18 19:12:40,013 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-04-18 19:12:40,013 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-04-18 19:12:40,013 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-04-18 19:12:40,014 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-04-18 19:12:40,014 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-04-18 19:12:40,014 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-04-18 19:12:40,014 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-04-18 19:12:40,014 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-04-18 19:12:40,014 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-04-18 19:12:40,015 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-04-18 19:12:40,015 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-04-18 19:12:40,015 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-04-18 19:12:40,015 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-04-18 19:12:40,015 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-04-18 19:12:40,015 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-04-18 19:12:40,015 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-04-18 19:12:40,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-04-18 19:12:40,222 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:12:40,223 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-04-18 19:12:40,223 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:12:40,223 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 19:12:40,343 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:12:40,344 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:12:40,344 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:12:40,344 INFO L341 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-04-18 19:12:40,347 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:12:40,347 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 309 transitions, 639 flow [2022-04-18 19:12:40,347 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 309 transitions, 639 flow [2022-04-18 19:12:40,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 285 places, 309 transitions, 639 flow [2022-04-18 19:12:40,422 INFO L129 PetriNetUnfolder]: 34/346 cut-off events. [2022-04-18 19:12:40,423 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 19:12:40,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 346 events. 34/346 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1192 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 280. Up to 8 conditions per place. [2022-04-18 19:12:40,446 INFO L116 LiptonReduction]: Number of co-enabled transitions 55536 [2022-04-18 19:13:11,451 WARN L232 SmtUtils]: Spent 24.35s on a formula simplification. DAG size of input: 108 DAG size of output: 100 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:13:17,432 WARN L232 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 103 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:13:35,101 WARN L232 SmtUtils]: Spent 11.77s on a formula simplification. DAG size of input: 108 DAG size of output: 93 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:13:54,690 WARN L232 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 113 DAG size of output: 97 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:16:03,248 INFO L131 LiptonReduction]: Checked pairs total: 259175 [2022-04-18 19:16:03,249 INFO L133 LiptonReduction]: Total number of compositions: 357 [2022-04-18 19:16:03,250 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 132 transitions, 285 flow [2022-04-18 19:16:11,161 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 286585 states, 285040 states have (on average 4.249487791187202) internal successors, (1211274), 286584 states have internal predecessors, (1211274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:16:11,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 286585 states, 285040 states have (on average 4.249487791187202) internal successors, (1211274), 286584 states have internal predecessors, (1211274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:16:11,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:16:11,618 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:11,618 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:16:11,618 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-04-18 19:16:11,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:11,619 INFO L85 PathProgramCache]: Analyzing trace with hash 905793364, now seen corresponding path program 1 times [2022-04-18 19:16:11,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:16:11,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751789689] [2022-04-18 19:16:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:11,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:16:11,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:16:11,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:16:11,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-04-18 19:16:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:16:11,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-04-18 19:16:11,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:16:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:16:11,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:16:11,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:16:11,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751789689] [2022-04-18 19:16:11,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751789689] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:16:11,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:16:11,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:16:11,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074814031] [2022-04-18 19:16:11,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:16:11,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:16:11,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:16:11,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:16:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:16:12,252 INFO L87 Difference]: Start difference. First operand has 286585 states, 285040 states have (on average 4.249487791187202) internal successors, (1211274), 286584 states have internal predecessors, (1211274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:16:15,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:16:15,409 INFO L93 Difference]: Finished difference Result 168067 states and 666379 transitions. [2022-04-18 19:16:15,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:16:15,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-04-18 19:16:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:16:17,723 INFO L225 Difference]: With dead ends: 168067 [2022-04-18 19:16:17,723 INFO L226 Difference]: Without dead ends: 168067 [2022-04-18 19:16:17,724 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:16:17,724 INFO L913 BasicCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:16:17,726 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:16:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168067 states. [2022-04-18 19:16:24,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168067 to 168067. [2022-04-18 19:16:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168067 states, 167942 states have (on average 3.9679115408891166) internal successors, (666379), 168066 states have internal predecessors, (666379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:16:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168067 states to 168067 states and 666379 transitions. [2022-04-18 19:16:26,361 INFO L78 Accepts]: Start accepts. Automaton has 168067 states and 666379 transitions. Word has length 6 [2022-04-18 19:16:26,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:16:26,361 INFO L478 AbstractCegarLoop]: Abstraction has 168067 states and 666379 transitions. [2022-04-18 19:16:26,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:16:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 168067 states and 666379 transitions. [2022-04-18 19:16:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:16:26,362 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:26,362 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:16:26,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-04-18 19:16:26,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:16:26,570 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-04-18 19:16:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash 737369611, now seen corresponding path program 1 times [2022-04-18 19:16:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:16:26,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903989307] [2022-04-18 19:16:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:26,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:16:26,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:16:26,584 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:16:26,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-04-18 19:16:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:16:26,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2022-04-18 19:16:26,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:16:26,737 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 15 treesize of output 11 [2022-04-18 19:16:26,867 INFO L356 Elim1Store]: treesize reduction 36, result has 28.0 percent of original size [2022-04-18 19:16:26,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-04-18 19:16:27,119 INFO L356 Elim1Store]: treesize reduction 90, result has 25.0 percent of original size [2022-04-18 19:16:27,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2022-04-18 19:16:27,457 INFO L356 Elim1Store]: treesize reduction 163, result has 21.6 percent of original size [2022-04-18 19:16:27,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 66 [2022-04-18 19:16:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:16:27,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:16:27,615 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:16:27,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903989307] [2022-04-18 19:16:27,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903989307] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:16:27,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:16:27,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:16:27,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688107293] [2022-04-18 19:16:27,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:16:27,616 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:16:27,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:16:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:16:27,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:16:27,616 INFO L87 Difference]: Start difference. First operand 168067 states and 666379 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 19:16:37,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:16:37,068 INFO L93 Difference]: Finished difference Result 187295 states and 741343 transitions. [2022-04-18 19:16:37,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:16:37,070 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 19:16:37,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:16:39,233 INFO L225 Difference]: With dead ends: 187295 [2022-04-18 19:16:39,234 INFO L226 Difference]: Without dead ends: 187295 [2022-04-18 19:16:39,234 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:16:39,235 INFO L913 BasicCegarLoop]: 95 mSDtfsCounter, 160 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:16:39,235 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 132 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-04-18 19:16:39,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187295 states. [2022-04-18 19:16:45,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187295 to 187295. [2022-04-18 19:16:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187295 states, 187171 states have (on average 3.960779180535446) internal successors, (741343), 187294 states have internal predecessors, (741343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:16:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187295 states to 187295 states and 741343 transitions. [2022-04-18 19:16:48,244 INFO L78 Accepts]: Start accepts. Automaton has 187295 states and 741343 transitions. Word has length 10 [2022-04-18 19:16:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:16:48,244 INFO L478 AbstractCegarLoop]: Abstraction has 187295 states and 741343 transitions. [2022-04-18 19:16:48,245 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 19:16:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 187295 states and 741343 transitions. [2022-04-18 19:16:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:16:48,246 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:48,246 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:16:48,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-04-18 19:16:48,447 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:16:48,447 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-04-18 19:16:48,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:48,447 INFO L85 PathProgramCache]: Analyzing trace with hash -508639295, now seen corresponding path program 1 times [2022-04-18 19:16:48,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:16:48,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291609117] [2022-04-18 19:16:48,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:48,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:16:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:16:48,449 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:16:48,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-04-18 19:16:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:16:48,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-18 19:16:48,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:16:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:16:48,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:16:48,759 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:16:48,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291609117] [2022-04-18 19:16:48,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291609117] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:16:48,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:16:48,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 19:16:48,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612170785] [2022-04-18 19:16:48,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:16:48,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:16:48,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:16:48,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:16:48,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:16:48,760 INFO L87 Difference]: Start difference. First operand 187295 states and 741343 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:16:53,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:16:53,359 INFO L93 Difference]: Finished difference Result 243287 states and 959779 transitions. [2022-04-18 19:16:53,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:16:53,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-04-18 19:16:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:16:55,973 INFO L225 Difference]: With dead ends: 243287 [2022-04-18 19:16:55,973 INFO L226 Difference]: Without dead ends: 243287 [2022-04-18 19:16:55,973 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:16:55,974 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 80 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:16:55,974 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 178 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:16:56,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243287 states.