/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -i ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:01:47,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:01:47,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:01:47,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-22 12:01:47,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:01:47,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:01:47,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:01:47,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:01:47,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:01:47,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:01:47,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:01:47,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:01:47,369 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:01:47,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:01:47,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:01:47,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:01:47,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:01:47,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:01:47,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:01:47,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:01:47,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:01:47,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-22 12:01:47,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:01:47,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:01:47,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:01:47,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:01:47,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:01:47,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:01:47,426 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:01:47,426 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:01:47,427 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:01:47,427 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:01:47,427 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:01:47,428 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:01:47,428 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:01:47,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:01:47,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:01:47,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:01:47,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:01:47,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:01:47,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:01:47,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:01:47,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:01:47,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:01:47,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:01:47,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:01:47,432 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:01:47,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:01:47,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:01:47,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:01:47,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:01:47,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:01:47,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:01:47,434 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 12:01:47,435 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:01:47,436 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:01:47,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:01:47,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:01:47,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:01:47,877 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:01:47,878 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:01:47,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2022-07-22 12:01:47,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86e2af66/bffb436c03014ec88674554487200381/FLAG55ad8fa46 [2022-07-22 12:01:48,668 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:01:48,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2022-07-22 12:01:48,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86e2af66/bffb436c03014ec88674554487200381/FLAG55ad8fa46 [2022-07-22 12:01:49,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86e2af66/bffb436c03014ec88674554487200381 [2022-07-22 12:01:49,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:01:49,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:01:49,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:01:49,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:01:49,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:01:49,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c4c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49, skipping insertion in model container [2022-07-22 12:01:49,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:01:49,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:01:49,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3221,3234] [2022-07-22 12:01:49,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:01:49,471 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:01:49,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3221,3234] [2022-07-22 12:01:49,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:01:49,556 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:01:49,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49 WrapperNode [2022-07-22 12:01:49,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:01:49,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:01:49,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:01:49,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:01:49,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,603 INFO L137 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-07-22 12:01:49,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:01:49,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:01:49,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:01:49,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:01:49,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:01:49,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:01:49,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:01:49,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:01:49,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (1/1) ... [2022-07-22 12:01:49,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:01:49,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:01:49,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:01:49,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 12:01:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:01:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:01:49,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:01:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:01:49,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:01:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-22 12:01:49,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-22 12:01:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-07-22 12:01:49,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-07-22 12:01:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:01:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:01:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:01:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:01:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:01:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:01:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:01:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:01:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:01:49,780 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 12:01:49,872 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:01:49,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:01:50,321 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:01:50,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:01:50,386 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 12:01:50,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:01:50 BoogieIcfgContainer [2022-07-22 12:01:50,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:01:50,396 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:01:50,396 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:01:50,420 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:01:50,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:01:50,421 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:01:49" (1/3) ... [2022-07-22 12:01:50,422 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10c51ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:01:50, skipping insertion in model container [2022-07-22 12:01:50,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:01:50,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:49" (2/3) ... [2022-07-22 12:01:50,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10c51ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:01:50, skipping insertion in model container [2022-07-22 12:01:50,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:01:50,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:01:50" (3/3) ... [2022-07-22 12:01:50,425 INFO L322 chiAutomizerObserver]: Analyzing ICFG spaghetti.wvr.c [2022-07-22 12:01:50,618 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-22 12:01:50,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 129 transitions, 290 flow [2022-07-22 12:01:50,710 INFO L129 PetriNetUnfolder]: 9/121 cut-off events. [2022-07-22 12:01:50,711 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 12:01:50,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 121 events. 9/121 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-07-22 12:01:50,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 129 transitions, 290 flow [2022-07-22 12:01:50,727 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 121 transitions, 266 flow [2022-07-22 12:01:50,740 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:01:50,741 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:01:50,741 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:01:50,741 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:01:50,741 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:01:50,741 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:01:50,741 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:01:50,742 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:01:50,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:01:56,392 INFO L131 ngComponentsAnalysis]: Automaton has 3611 accepting balls. 37232 [2022-07-22 12:01:56,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 12:01:56,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 12:01:56,403 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:01:56,404 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 12:01:56,404 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 12:01:56,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 41174 states, but on-demand construction may add more states [2022-07-22 12:01:57,794 INFO L131 ngComponentsAnalysis]: Automaton has 3611 accepting balls. 37232 [2022-07-22 12:01:57,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 12:01:57,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 12:01:57,797 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:01:57,797 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 12:01:57,805 INFO L748 eck$LassoCheckResult]: Stem: 132#[ULTIMATE.startENTRY]don't care [264] ULTIMATE.startENTRY-->L-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 135#[L-1]don't care [199] L-1-->L-1-1: Formula: (and (= |v_#NULL.base_1| 0) (= |v_#NULL.offset_1| 0)) InVars {} OutVars{#NULL.offset=|v_#NULL.offset_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] 137#[L-1-1]don't care [270] L-1-1-->L-1-2: Formula: (= (select |v_#valid_11| 0) 0) InVars {#valid=|v_#valid_11|} OutVars{#valid=|v_#valid_11|} AuxVars[] AssignedVars[] 139#[L-1-2]don't care [274] L-1-2-->L21: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 141#[L21]don't care [250] L21-->L21-1: Formula: (and (= (select |v_#valid_12| 1) 1) (= 2 (select |v_#length_3| 1))) InVars {#length=|v_#length_3|, #valid=|v_#valid_12|} OutVars{#length=|v_#length_3|, #valid=|v_#valid_12|} AuxVars[] AssignedVars[] 143#[L21-1]don't care [261] L21-1-->L21-2: Formula: (= (select (select |v_#memory_int_3| 1) 0) 48) InVars {#memory_int=|v_#memory_int_3|} OutVars{#memory_int=|v_#memory_int_3|} AuxVars[] AssignedVars[] 145#[L21-2]don't care [209] L21-2-->L21-3: Formula: (= (select (select |v_#memory_int_4| 1) 1) 0) InVars {#memory_int=|v_#memory_int_4|} OutVars{#memory_int=|v_#memory_int_4|} AuxVars[] AssignedVars[] 147#[L21-3]don't care [242] L21-3-->L21-4: Formula: (and (= 16 (select |v_#length_4| 2)) (= (select |v_#valid_13| 2) 1)) InVars {#length=|v_#length_4|, #valid=|v_#valid_13|} OutVars{#length=|v_#length_4|, #valid=|v_#valid_13|} AuxVars[] AssignedVars[] 149#[L21-4]don't care [228] L21-4-->L38: Formula: (= v_~x_0~0_13 0) InVars {} OutVars{~x_0~0=v_~x_0~0_13} AuxVars[] AssignedVars[~x_0~0] 151#[L38]don't care [229] L38-->L-1-3: Formula: (= v_~x_1~0_13 0) InVars {} OutVars{~x_1~0=v_~x_1~0_13} AuxVars[] AssignedVars[~x_1~0] 153#[L-1-3]don't care [279] L-1-3-->L-1-4: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 155#[L-1-4]don't care [205] L-1-4-->L-1-5: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 157#[L-1-5]don't care [173] L-1-5-->L-1-6: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 159#[L-1-6]don't care [257] L-1-6-->L112: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre13#1=|v_ULTIMATE.start_main_#t~pre13#1_1|, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_1|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_1|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_1|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_3|, ULTIMATE.start_main_~#t3~0#1.offset=|v_ULTIMATE.start_main_~#t3~0#1.offset_4|, ULTIMATE.start_main_#t~mem18#1=|v_ULTIMATE.start_main_#t~mem18#1_2|, ULTIMATE.start_main_~#t3~0#1.base=|v_ULTIMATE.start_main_~#t3~0#1.base_4|, ULTIMATE.start_main_#t~pre15#1=|v_ULTIMATE.start_main_#t~pre15#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~nondet12#1=|v_ULTIMATE.start_main_#t~nondet12#1_1|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|, ULTIMATE.start_main_#t~nondet14#1=|v_ULTIMATE.start_main_#t~nondet14#1_1|, ULTIMATE.start_main_#t~mem19#1=|v_ULTIMATE.start_main_#t~mem19#1_3|, ULTIMATE.start_main_#t~mem20#1=|v_ULTIMATE.start_main_#t~mem20#1_3|, ULTIMATE.start_main_#t~nondet16#1=|v_ULTIMATE.start_main_#t~nondet16#1_1|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_1|, ULTIMATE.start_main_#t~mem17#1=|v_ULTIMATE.start_main_#t~mem17#1_1|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_~#t4~0#1.offset=|v_ULTIMATE.start_main_~#t4~0#1.offset_4|, ULTIMATE.start_main_~#t4~0#1.base=|v_ULTIMATE.start_main_~#t4~0#1.base_4|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre13#1, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre11#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_~#t3~0#1.offset, ULTIMATE.start_main_#t~mem18#1, ULTIMATE.start_main_~#t3~0#1.base, ULTIMATE.start_main_#t~pre15#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~nondet12#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~nondet14#1, ULTIMATE.start_main_#t~mem19#1, ULTIMATE.start_main_#t~mem20#1, ULTIMATE.start_main_#t~nondet16#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~mem17#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_~#t4~0#1.offset, ULTIMATE.start_main_~#t4~0#1.base, ULTIMATE.start_main_~#t2~0#1.base] 161#[L112]don't care [214] L112-->L112-1: Formula: (and (= (store |v_#length_6| |v_ULTIMATE.start_main_~#t1~0#1.base_4| 4) |v_#length_5|) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_4|) (= (select |v_#valid_15| |v_ULTIMATE.start_main_~#t1~0#1.base_4|) 0) (= (store |v_#valid_15| |v_ULTIMATE.start_main_~#t1~0#1.base_4| 1) |v_#valid_14|) (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_4| 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_4| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_6|, #valid=|v_#valid_15|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_5|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_4|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_4|, #valid=|v_#valid_14|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 163#[L112-1]don't care [230] L112-1-->L112-2: Formula: (and (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_4|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_4| 0)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_4|) (= (store |v_#valid_17| |v_ULTIMATE.start_main_~#t2~0#1.base_4| 1) |v_#valid_16|) (= |v_#length_7| (store |v_#length_8| |v_ULTIMATE.start_main_~#t2~0#1.base_4| 4)) (= (select |v_#valid_17| |v_ULTIMATE.start_main_~#t2~0#1.base_4|) 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_8|, #valid=|v_#valid_17|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_4|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_4|, #valid=|v_#valid_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 165#[L112-2]don't care [269] L112-2-->L112-3: Formula: (and (not (= |v_ULTIMATE.start_main_~#t3~0#1.base_5| 0)) (= (store |v_#valid_19| |v_ULTIMATE.start_main_~#t3~0#1.base_5| 1) |v_#valid_18|) (< |v_#StackHeapBarrier_4| |v_ULTIMATE.start_main_~#t3~0#1.base_5|) (= (select |v_#valid_19| |v_ULTIMATE.start_main_~#t3~0#1.base_5|) 0) (= (store |v_#length_10| |v_ULTIMATE.start_main_~#t3~0#1.base_5| 4) |v_#length_9|) (= |v_ULTIMATE.start_main_~#t3~0#1.offset_5| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_4|, #length=|v_#length_10|, #valid=|v_#valid_19|} OutVars{ULTIMATE.start_main_~#t3~0#1.base=|v_ULTIMATE.start_main_~#t3~0#1.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_4|, #length=|v_#length_9|, ULTIMATE.start_main_~#t3~0#1.offset=|v_ULTIMATE.start_main_~#t3~0#1.offset_5|, #valid=|v_#valid_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t3~0#1.offset, #valid, ULTIMATE.start_main_~#t3~0#1.base, #length] 167#[L112-3]don't care [168] L112-3-->L112-4: Formula: (and (= |v_#valid_20| (store |v_#valid_21| |v_ULTIMATE.start_main_~#t4~0#1.base_5| 1)) (< |v_#StackHeapBarrier_5| |v_ULTIMATE.start_main_~#t4~0#1.base_5|) (= (select |v_#valid_21| |v_ULTIMATE.start_main_~#t4~0#1.base_5|) 0) (= |v_ULTIMATE.start_main_~#t4~0#1.offset_5| 0) (not (= |v_ULTIMATE.start_main_~#t4~0#1.base_5| 0)) (= (store |v_#length_12| |v_ULTIMATE.start_main_~#t4~0#1.base_5| 4) |v_#length_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_5|, #length=|v_#length_12|, #valid=|v_#valid_21|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_5|, #length=|v_#length_11|, ULTIMATE.start_main_~#t4~0#1.offset=|v_ULTIMATE.start_main_~#t4~0#1.offset_5|, ULTIMATE.start_main_~#t4~0#1.base=|v_ULTIMATE.start_main_~#t4~0#1.base_5|, #valid=|v_#valid_20|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t4~0#1.offset, ULTIMATE.start_main_~#t4~0#1.base] 169#[L112-4]don't care [227] L112-4-->L114: Formula: (= |v_ULTIMATE.start_main_#t~nondet7#1_2| v_~x_0~0_14) InVars {ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_2|} OutVars{~x_0~0=v_~x_0~0_14, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_2|} AuxVars[] AssignedVars[~x_0~0] 171#[L114]don't care [215] L114-->L115: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet7#1] 173#[L115]don't care [218] L115-->L115-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet8#1_2| v_~x_1~0_14) InVars {ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_2|} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_2|, ~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0] 175#[L115-1]don't care [221] L115-1-->L117: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1] 177#[L117]don't care [167] L117-->L117-1: Formula: (= |v_ULTIMATE.start_main_#t~pre9#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre9#1] 179#[L117-1]don't care [249] L117-1-->L117-2: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 181#[L117-2]don't care [177] L117-2-->L117-3: Formula: (and (= (select |v_#valid_22| |v_ULTIMATE.start_main_~#t1~0#1.base_5|) 1) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_5| 4) (select |v_#length_13| |v_ULTIMATE.start_main_~#t1~0#1.base_5|)) (= (store |v_#memory_int_6| |v_ULTIMATE.start_main_~#t1~0#1.base_5| (store (select |v_#memory_int_6| |v_ULTIMATE.start_main_~#t1~0#1.base_5|) |v_ULTIMATE.start_main_~#t1~0#1.offset_5| |v_ULTIMATE.start_main_#t~pre9#1_3|)) |v_#memory_int_5|) (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_5|)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_3|, #valid=|v_#valid_22|, #memory_int=|v_#memory_int_6|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_5|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_5|} OutVars{ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_3|, #valid=|v_#valid_22|, #memory_int=|v_#memory_int_5|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_5|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_5|} AuxVars[] AssignedVars[#memory_int] 183#[L117-3]don't care [331] L117-3-->L51: Formula: (and (= |v_ULTIMATE.start_main_#t~pre9#1_6| v_thread1Thread1of1ForFork1_thidvar0_2) (= 0 v_thread1Thread1of1ForFork1_thidvar1_2)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|} OutVars{thread1Thread1of1ForFork1_#t~nondet2=|v_thread1Thread1of1ForFork1_#t~nondet2_4|, thread1Thread1of1ForFork1_#res.base=|v_thread1Thread1of1ForFork1_#res.base_4|, thread1Thread1of1ForFork1_#t~nondet1=|v_thread1Thread1of1ForFork1_#t~nondet1_10|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|, thread1Thread1of1ForFork1_#res.offset=|v_thread1Thread1of1ForFork1_#res.offset_4|, thread1Thread1of1ForFork1_thidvar1=v_thread1Thread1of1ForFork1_thidvar1_2, thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~nondet2, thread1Thread1of1ForFork1_#res.base, thread1Thread1of1ForFork1_#t~nondet1, thread1Thread1of1ForFork1_#res.offset, thread1Thread1of1ForFork1_thidvar1, thread1Thread1of1ForFork1_thidvar0] 185#[L117-4, L51]don't care [2022-07-22 12:01:57,805 INFO L750 eck$LassoCheckResult]: Loop: 185#[L117-4, L51]don't care [286] L51-->L42-2: Formula: (not (= (mod |v_thread1Thread1of1ForFork1_#t~nondet1_3| 256) 0)) InVars {thread1Thread1of1ForFork1_#t~nondet1=|v_thread1Thread1of1ForFork1_#t~nondet1_3|} OutVars{thread1Thread1of1ForFork1_#t~nondet1=|v_thread1Thread1of1ForFork1_#t~nondet1_3|} AuxVars[] AssignedVars[] 193#[L117-4, L42-2]don't care [289] L42-2-->L43: Formula: true InVars {} OutVars{thread1Thread1of1ForFork1_#t~nondet1=|v_thread1Thread1of1ForFork1_#t~nondet1_7|} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~nondet1] 205#[L117-4, L43]don't care [291] L43-->L45: Formula: (= v_~x_0~0_15 |v_thread1Thread1of1ForFork1_#t~nondet2_1|) InVars {thread1Thread1of1ForFork1_#t~nondet2=|v_thread1Thread1of1ForFork1_#t~nondet2_1|} OutVars{~x_0~0=v_~x_0~0_15} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~nondet2, ~x_0~0] 221#[L117-4, L45]don't care [293] L45-->L48: Formula: (= v_~x_0~0_3 (+ 3 v_~x_0~0_4)) InVars {~x_0~0=v_~x_0~0_4} OutVars{~x_0~0=v_~x_0~0_3} AuxVars[] AssignedVars[~x_0~0] 241#[L117-4, L48]don't care [294] L48-->L51: Formula: (= (* 2 v_~x_0~0_6) v_~x_0~0_5) InVars {~x_0~0=v_~x_0~0_6} OutVars{~x_0~0=v_~x_0~0_5} AuxVars[] AssignedVars[~x_0~0] 185#[L117-4, L51]don't care [2022-07-22 12:01:57,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:01:57,813 INFO L85 PathProgramCache]: Analyzing trace with hash 670530857, now seen corresponding path program 1 times [2022-07-22 12:01:57,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:01:57,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106220872] [2022-07-22 12:01:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:01:57,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:01:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:01:58,039 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:01:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:01:58,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:01:58,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:01:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash 301654784, now seen corresponding path program 1 times [2022-07-22 12:01:58,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:01:58,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793724968] [2022-07-22 12:01:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:01:58,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:01:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:01:58,162 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:01:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:01:58,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:01:58,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:01:58,170 INFO L85 PathProgramCache]: Analyzing trace with hash -563388712, now seen corresponding path program 1 times [2022-07-22 12:01:58,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:01:58,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072459966] [2022-07-22 12:01:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:01:58,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:01:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:01:58,237 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:01:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:01:58,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:01:59,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:01:59 BoogieIcfgContainer [2022-07-22 12:01:59,497 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:01:59,500 INFO L158 Benchmark]: Toolchain (without parser) took 10438.16ms. Allocated memory was 151.0MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 125.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 400.6MB. Max. memory is 8.0GB. [2022-07-22 12:01:59,503 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:01:59,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.65ms. Allocated memory is still 151.0MB. Free memory was 125.7MB in the beginning and 114.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-07-22 12:01:59,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 113.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:01:59,508 INFO L158 Benchmark]: Boogie Preprocessor took 33.91ms. Allocated memory is still 151.0MB. Free memory was 113.3MB in the beginning and 112.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:01:59,508 INFO L158 Benchmark]: RCFGBuilder took 755.33ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 132.8MB in the end (delta: -21.0MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. [2022-07-22 12:01:59,511 INFO L158 Benchmark]: BuchiAutomizer took 9101.42ms. Allocated memory was 151.0MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 132.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 406.4MB. Max. memory is 8.0GB. [2022-07-22 12:01:59,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 487.65ms. Allocated memory is still 151.0MB. Free memory was 125.7MB in the beginning and 114.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 113.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.91ms. Allocated memory is still 151.0MB. Free memory was 113.3MB in the beginning and 112.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 755.33ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 132.8MB in the end (delta: -21.0MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. * BuchiAutomizer took 9101.42ms. Allocated memory was 151.0MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 132.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 406.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 42]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, \result={0:0}, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30fd5394=257, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ac5cc4f in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@405a695a in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42c44ef9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a73baf8=-3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f2f6a60 in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bfcdb0d in0,-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e4e4c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@1bbf3cf1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@1d8bdd47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@23b36453=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@7109782c=0, t1={30049:0}, t2={30048:0}, t3={30047:0}, t4={30046:0}, x_0=0, x_1=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 42]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L38] 0 unsigned int x_0, x_1; [L112] 0 pthread_t t1, t2, t3, t4; [L114] 0 x_0 = __VERIFIER_nondet_uint() [L115] 0 x_1 = __VERIFIER_nondet_uint() [L117] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) Loop: [L42] COND TRUE __VERIFIER_nondet_bool() [L44] x_0 = __VERIFIER_nondet_uint() [L47] x_0 = x_0 + 3 [L50] x_0 = 2 * x_0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 12:01:59,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...