/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 02:55:21,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 02:55:21,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 02:55:21,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 02:55:21,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 02:55:21,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 02:55:21,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 02:55:21,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 02:55:21,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 02:55:21,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 02:55:21,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 02:55:21,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 02:55:21,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 02:55:21,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 02:55:21,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 02:55:21,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 02:55:21,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 02:55:21,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 02:55:21,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 02:55:21,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 02:55:21,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 02:55:21,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 02:55:21,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 02:55:21,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 02:55:21,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 02:55:21,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 02:55:21,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 02:55:21,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 02:55:21,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 02:55:21,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 02:55:21,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 02:55:21,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 02:55:21,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 02:55:21,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 02:55:21,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 02:55:21,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 02:55:21,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 02:55:21,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 02:55:21,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 02:55:21,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 02:55:21,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 02:55:21,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-20 02:55:21,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 02:55:21,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 02:55:21,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 02:55:21,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 02:55:21,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 02:55:21,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 02:55:21,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 02:55:21,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 02:55:21,491 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 02:55:21,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 02:55:21,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 02:55:21,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 02:55:21,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 02:55:21,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 02:55:21,494 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 02:55:21,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 02:55:21,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 02:55:21,494 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 02:55:21,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-02-20 02:55:21,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 02:55:21,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 02:55:21,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 02:55:21,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 02:55:21,697 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 02:55:21,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2022-02-20 02:55:21,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53f18003/8077b4401a244c7f8c5caf7e9bb08eb8/FLAG6a3b1bf1b [2022-02-20 02:55:22,176 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 02:55:22,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2022-02-20 02:55:22,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53f18003/8077b4401a244c7f8c5caf7e9bb08eb8/FLAG6a3b1bf1b [2022-02-20 02:55:22,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53f18003/8077b4401a244c7f8c5caf7e9bb08eb8 [2022-02-20 02:55:22,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 02:55:22,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 02:55:22,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 02:55:22,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 02:55:22,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 02:55:22,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd9701d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22, skipping insertion in model container [2022-02-20 02:55:22,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 02:55:22,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 02:55:22,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 02:55:22,573 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 02:55:22,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 02:55:22,653 INFO L208 MainTranslator]: Completed translation [2022-02-20 02:55:22,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22 WrapperNode [2022-02-20 02:55:22,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 02:55:22,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 02:55:22,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 02:55:22,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 02:55:22,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,698 INFO L137 Inliner]: procedures = 263, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-02-20 02:55:22,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 02:55:22,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 02:55:22,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 02:55:22,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 02:55:22,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 02:55:22,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 02:55:22,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 02:55:22,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 02:55:22,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (1/1) ... [2022-02-20 02:55:22,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 02:55:22,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 02:55:22,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 02:55:22,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-20 02:55:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 02:55:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 02:55:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 02:55:22,791 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 02:55:22,907 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 02:55:22,908 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 02:55:23,030 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 02:55:23,034 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 02:55:23,034 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 02:55:23,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 02:55:23 BoogieIcfgContainer [2022-02-20 02:55:23,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 02:55:23,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 02:55:23,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 02:55:23,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 02:55:23,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 02:55:22" (1/3) ... [2022-02-20 02:55:23,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a85c409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 02:55:23, skipping insertion in model container [2022-02-20 02:55:23,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:55:22" (2/3) ... [2022-02-20 02:55:23,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a85c409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 02:55:23, skipping insertion in model container [2022-02-20 02:55:23,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 02:55:23" (3/3) ... [2022-02-20 02:55:23,040 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2022-02-20 02:55:23,048 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 02:55:23,048 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 02:55:23,048 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-02-20 02:55:23,048 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 02:55:23,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:55:23,085 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-20 02:55:23,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 02:55:23,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 02:55:23,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 02:55:23,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 02:55:23,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 02:55:23,142 INFO L339 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 02:55:23,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-02-20 02:55:23,173 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 41 transitions and produced 42 states. [2022-02-20 02:55:23,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-02-20 02:55:23,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:55:23,178 INFO L85 PathProgramCache]: Analyzing trace with hash -834013877, now seen corresponding path program 1 times [2022-02-20 02:55:23,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:55:23,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112430417] [2022-02-20 02:55:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:55:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:55:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 02:55:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 02:55:23,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 02:55:23,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112430417] [2022-02-20 02:55:23,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112430417] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 02:55:23,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 02:55:23,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 02:55:23,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210572647] [2022-02-20 02:55:23,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 02:55:23,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 02:55:23,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 02:55:23,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 02:55:23,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 02:55:23,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,345 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 02:55:23,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-02-20 02:55:23,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,375 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 50 transitions and produced 51 states. [2022-02-20 02:55:23,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 02:55:23,377 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-02-20 02:55:23,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:55:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash 44091556, now seen corresponding path program 1 times [2022-02-20 02:55:23,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:55:23,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301817695] [2022-02-20 02:55:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:55:23,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:55:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 02:55:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 02:55:23,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 02:55:23,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301817695] [2022-02-20 02:55:23,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301817695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 02:55:23,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 02:55:23,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 02:55:23,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102034516] [2022-02-20 02:55:23,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 02:55:23,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 02:55:23,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 02:55:23,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 02:55:23,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 02:55:23,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,427 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 02:55:23,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-02-20 02:55:23,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,453 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 67 transitions and produced 68 states. [2022-02-20 02:55:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 02:55:23,454 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-02-20 02:55:23,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:55:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash -897607208, now seen corresponding path program 1 times [2022-02-20 02:55:23,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:55:23,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344713386] [2022-02-20 02:55:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:55:23,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:55:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 02:55:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 02:55:23,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 02:55:23,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344713386] [2022-02-20 02:55:23,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344713386] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 02:55:23,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 02:55:23,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 02:55:23,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683676344] [2022-02-20 02:55:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 02:55:23,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-20 02:55:23,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 02:55:23,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-20 02:55:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-20 02:55:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,610 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 02:55:23,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-02-20 02:55:23,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,673 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 80 transitions and produced 81 states. [2022-02-20 02:55:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 02:55:23,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 02:55:23,675 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-02-20 02:55:23,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:55:23,676 INFO L85 PathProgramCache]: Analyzing trace with hash 323710952, now seen corresponding path program 1 times [2022-02-20 02:55:23,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:55:23,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329527878] [2022-02-20 02:55:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:55:23,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:55:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 02:55:23,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 02:55:23,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 02:55:23,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329527878] [2022-02-20 02:55:23,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329527878] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 02:55:23,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 02:55:23,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 02:55:23,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130642450] [2022-02-20 02:55:23,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 02:55:23,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 02:55:23,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 02:55:23,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 02:55:23,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 02:55:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,747 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 02:55:23,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 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) [2022-02-20 02:55:23,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 02:55:23,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:55:23,854 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 673 transitions and produced 380 states. [2022-02-20 02:55:23,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 02:55:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:55:23,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-20 02:55:23,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-02-20 02:55:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:55:23,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1120251550, now seen corresponding path program 1 times [2022-02-20 02:55:23,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:55:23,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544401193] [2022-02-20 02:55:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:55:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:55:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 02:55:23,887 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 02:55:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 02:55:23,917 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 02:55:23,917 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 02:55:23,918 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2022-02-20 02:55:23,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2022-02-20 02:55:23,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2022-02-20 02:55:23,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 6 remaining) [2022-02-20 02:55:23,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2022-02-20 02:55:23,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-02-20 02:55:23,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-20 02:55:23,931 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-20 02:55:23,935 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 02:55:23,935 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 02:55:23,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 02:55:23 BasicIcfg [2022-02-20 02:55:23,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 02:55:23,979 INFO L158 Benchmark]: Toolchain (without parser) took 1772.06ms. Allocated memory was 179.3MB in the beginning and 237.0MB in the end (delta: 57.7MB). Free memory was 126.5MB in the beginning and 195.4MB in the end (delta: -69.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 02:55:23,980 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 02:55:23,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.10ms. Allocated memory is still 179.3MB. Free memory was 126.3MB in the beginning and 136.9MB in the end (delta: -10.6MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-02-20 02:55:23,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.77ms. Allocated memory is still 179.3MB. Free memory was 136.9MB in the beginning and 134.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 02:55:23,983 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 179.3MB. Free memory was 134.8MB in the beginning and 133.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 02:55:23,985 INFO L158 Benchmark]: RCFGBuilder took 311.69ms. Allocated memory is still 179.3MB. Free memory was 133.2MB in the beginning and 120.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-20 02:55:23,985 INFO L158 Benchmark]: TraceAbstraction took 942.07ms. Allocated memory was 179.3MB in the beginning and 237.0MB in the end (delta: 57.7MB). Free memory was 120.1MB in the beginning and 195.4MB in the end (delta: -75.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 02:55:23,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.10ms. Allocated memory is still 179.3MB. Free memory was 126.3MB in the beginning and 136.9MB in the end (delta: -10.6MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.77ms. Allocated memory is still 179.3MB. Free memory was 136.9MB in the beginning and 134.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 179.3MB. Free memory was 134.8MB in the beginning and 133.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 311.69ms. Allocated memory is still 179.3MB. Free memory was 133.2MB in the beginning and 120.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 942.07ms. Allocated memory was 179.3MB in the beginning and 237.0MB in the end (delta: 57.7MB). Free memory was 120.1MB in the beginning and 195.4MB in the end (delta: -75.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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 - DataRaceFoundResult [Line: 933]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 0 pthread_t id; VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L933] EXPR 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L933] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] [L925] CALL, EXPR 1 f() [L921] 1 return 5; VAL [\result=5, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L925] RET, EXPR 1 f() [L925] 1 myglobal=f() VAL [arg={0:0}, arg={0:0}, f()=5, mutex1={1:0}, mutex2={2:0}, myglobal=5, myglobal=f()=26] [L933] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=5, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=f() [925] and C: myglobal=myglobal+1 [933] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 02:55:24,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-20 02:55:24,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...